{"content_id":"aqpinfbayh","slug":"msafer-2026-line-lookup-app-suspension","locale":"en","schema_type":"HowTo","category":"how_to","category_name":"How-to","title":"Msafer 2026: Check Registered Lines During App Suspension","summary":"You can check telecom lines registered in your name on the official website even while identity theft prevention services in linked apps are suspended. Find out what you need for authentication, each app's suspension schedule, how line checks differ from signup restrictions, and what to do if you find a suspicious line.","sponsorship_disclosure":null,"affiliate_disclosure":null,"commerce_disclosure":null,"author":{"name":"Injoys Editorial Team","url":"https://injoys.com/ko/about"},"key_points":["Have a joint certificate or financial certificate issued in your name ready.","Select the Subscription Status Inquiry Service on the official website.","Review and agree to the required terms, then log in with your certificate.","Compare the telecom lines shown with your active service contracts.","Check any unfamiliar lines with the relevant carrier. If you suspect identity theft, immediately ask for service to be suspended and a password to be set to prevent reactivation."],"content_markdown":"You can check telecommunications lines registered in your name on the Msafer website. Log in with a joint or financial authentication certificate, then select the Subscription Status Inquiry Service. Website inquiries remain available while linked app services are suspended.\n\nThe suspension and resumption schedule is based on the notice dated October 28, 2026.\n\n## How to Use the Msafer Subscription Status Inquiry Service\n\nLog in with a certificate in your name to check activated telecommunications lines. The [login page](https://msafer.or.kr/member/loginform.do) supports joint authentication certificates and financial authentication certificates. No separate account registration is required.\n\n1. Have a joint authentication certificate or financial authentication certificate in your name ready.\n2. Open “Identity Theft Prevention Service” on the official website. Select “Subscription Status Inquiry Service.”\n3. Read and agree to the mandatory terms on the login page.\n4. Verify your identity using your certificate.\n5. Compare the listed lines against the contracts you actually use. For any unfamiliar line, ask the relevant carrier how it was registered.\n\nThe official entry page is the [Subscription Status Inquiry Service](https://www.msafer.or.kr/inquiry_join/ask.do). The inquiry covers lines activated in your name as of the inquiry date. It does not check for personal data leaks.\n\nThere is no separate deadline for submitting an inquiry. The website FAQ states that the inquiry service **operates 24 hours a day**. However, maintenance may interrupt access, so check the notices as well.\n\n## PASS and KakaoBank Suspension Schedule\n\nKT PASS, LGU+ PASS, and KakaoBank have different suspension start times. The affected features are subscription status inquiries and subscription restrictions within the apps. The schedule below follows the [notice of temporary suspension on linked platforms](https://msafer.or.kr/notice/detail.do?serial=1244).\n\n| Access channel | Suspension starts | Scheduled resumption | Exceptions and alternatives |\n| --- | --- | --- | --- |\n| KT PASS | November 10, 2026, at 9 a.m. | November 20, 2026, at 9 a.m. | Website access available |\n| LGU+ PASS | October 28, 2026, at 10 a.m. | November 20, 2026, at 9 a.m. | Website access available |\n| KakaoBank | November 2, 2026, at 9 a.m. | November 20, 2026, at 9 a.m. | Website access available |\n| SKT PASS | No scheduled suspension | Not applicable | Brief interruptions possible during feature deployment |\n| Official website | Not affected by this linked app suspension | Not applicable | Available during each service’s operating hours |\n\nThe app features are scheduled to resume on November 20, 2026, at 9 a.m. (South Korea) This is not a deadline for submitting an inquiry. If the features will not open in the app, use the website.\n\n## The Difference Between Subscription Status Inquiries and Subscription Restrictions\n\nAn inquiry checks lines that have already been activated. Subscription restrictions block future mobile phone activations. The [service introduction](https://www.msafer.or.kr/protection_use/guide.do) explains the two features separately.\n\n| Category | Subscription Status Inquiry Service | Subscription Restriction Service |\n| --- | --- | --- |\n| Purpose | Check lines activated in your name | Block mobile phone activations in advance |\n| What is checked or covered | Telecommunications service subscriptions as of the inquiry date | New subscriptions, number transfers, device changes, and changes of account holder |\n| Meaning of the result | Shows currently subscribed lines | Shows subscription restriction settings |\n| If an unfamiliar existing line is found | Contact the relevant carrier to check | Does not replace suspension of an existing line |\n| Operating hours in the official FAQ | 24 hours a day | 09:00~22:00 |\n\nSimply checking your inquiry results does not enable subscription restrictions. To block additional activations, check your settings in the Subscription Restriction Service. You may need to lift the restriction to activate a mobile phone yourself.\n\n## What Changes Starting November 20, 2026\n\nAccording to the notice, the Subscription Restriction Service will be provided by default when activating a new mobile service. The effective date is **November 20, 2026**. The [notice of temporary suspension on linked platforms](https://msafer.or.kr/notice/detail.do?serial=1244) states:\n\n\u003e Starting November 20, the Subscription Restriction Service will be provided by default when activating a new mobile service.\n\nThis wording applies “when activating a new mobile service.” It does not state that the service will automatically apply to all lines held by existing users on the same day. Check your current settings directly in the Subscription Restriction Service.\n\n## What to Do If You Find an Unfamiliar Line\n\nFor an unfamiliar line, ask the relevant carrier how it was registered. If you suspect identity theft, request immediate suspension of the service. The [guidance on handling suspected identity theft](https://www.msafer.or.kr/minwon_center/process.do) also requires setting a password to prevent the suspension from being lifted.\n\n1. Contact the carrier shown in the inquiry results to confirm whether the line was activated.\n2. If identity theft is suspected or confirmed, request immediate suspension of the service. Be sure to set a password to prevent the person misusing your identity from lifting the suspension.\n3. Follow the carrier’s instructions to request an identity theft investigation. Bring your ID when submitting a mobile phone case in person.\n4. Check the subscription details and any debts, including billed charges. Then cooperate with the investigation and receive notification of the outcome.\n\nFor suspicious lines with budget mobile carriers, you can use the separate contacts listed in the official guidance. Distinguish between help with inquiry or login errors and questions about identity theft investigations.\n\n| Situation | Contact |\n| --- | --- |\n| Checking how a specific line was registered | The relevant carrier shown in the inquiry results |\n| Suspected identity theft involving a budget mobile line | Ministry of Science and ICT CS Center, 1335 without an area code |\n| Telecommunications complaint assistance for a suspicious budget mobile line | Telecommunications Complaints Mediation Center, 080-3472-119 |\n| Website login or usage errors | Fraudulent Subscription and Identity Theft Prevention Counseling Center, 1670-1382 |\n\nFor landline or internet services, also confirm the subscription with the relevant provider. The official handling guidance explains the procedure for reporting fixed-line service cases separately. Do not assume cancellation or billing issues have been resolved before the investigation results are available.\n\n## How to Decide What to Do After Checking at Night\n\nAt night, distinguish between inquiry availability and the operating hours for subscription restrictions. The [official FAQ](https://msafer.or.kr/cs/faq.do) states that subscription restrictions are available from **09:00~22:00**. Choose your next action based on the inquiry results.\n\n| Situation after checking | Next action |\n| --- | --- |\n| No unfamiliar lines, but you want to block additional activations | Check your settings during subscription restriction operating hours |\n| Suspected identity theft on an unfamiliar line | Immediately ask the relevant carrier to suspend the service |\n| The inquiry page displays a maintenance notice | Check the notices for the suspension period of the relevant feature |\n\nSetting subscription restrictions and suspending an existing line are separate actions. Do not wait until subscription restriction operating hours to request suspension of a suspicious line. When requesting suspension, be sure to set a password to prevent it from being lifted.\n\n## How to Resolve Certificate or Login Problems\n\nIf you do not have a certificate, obtain one from an issuing institution. According to the [joint authentication certificate guidance](https://msafer.or.kr/certification_center/public_certification.do), the website does not issue certificates. Check the requirements for issuance or reissuance with your financial institution or a joint certificate authority.\n\n1. Check the authentication guidance in the website’s “Authentication Center.”\n2. If instructions to install authentication software appear, follow the official guidance.\n3. If the error continues, try accessing the website from another PC.\n4. If the issue remains unresolved, contact the counseling center at 1670-1382.\n\nIf a waiting screen appears, wait for the connection to proceed automatically. The login page warns that refreshing or reconnecting will increase the wait. As directed in the official FAQ, use remote support only when requested by an association counselor.\n\n## The Difference Between Text or Email Notifications and Direct Inquiries\n\nText notifications inform you that a telecommunications service contract has been signed. Direct inquiries let you check your current subscription status. The [service introduction](https://www.msafer.or.kr/protection_use/guide.do) also explains email notifications separately.\n\n| Feature | Notification method and conditions |\n| --- | --- |\n| Text notification | Notification that a contract has been signed when a new subscription is opened or the account holder changes |\n| Registered mail notification | For users who cannot receive text messages on a mobile phone registered in their name |\n| Email notification | Notification of activation sent to an email address registered and verified in advance |\n| Subscription status inquiry | Check subscription status as of the inquiry date on the website |\n\nIf you have applied for email notifications, check for the approval email as well. If it does not arrive, check your spam folder and the address you entered. If the issue remains unresolved, you can change the receiving address or contact the counseling center.","content_html":"\u003cp\u003eYou can check telecommunications lines registered in your name on the Msafer website. Log in with a joint or financial authentication certificate, then select the Subscription Status Inquiry Service. Website inquiries remain available while linked app services are suspended.\u003c/p\u003e\n\u003cp\u003eThe suspension and resumption schedule is based on the notice dated October 28, 2026.\u003c/p\u003e\n\u003ch2\u003e\n\u003ca href=\"#how-to-use-the-msafer-subscription-status-inquiry-service\" class=\"anchor\" id=\"how-to-use-the-msafer-subscription-status-inquiry-service\"\u003e\u003c/a\u003eHow to Use the Msafer Subscription Status Inquiry Service\u003c/h2\u003e\n\u003cp\u003eLog in with a certificate in your name to check activated telecommunications lines. The \u003ca href=\"https://msafer.or.kr/member/loginform.do\"\u003elogin page\u003c/a\u003e supports joint authentication certificates and financial authentication certificates. No separate account registration is required.\u003c/p\u003e\n\u003col\u003e\n\u003cli\u003eHave a joint authentication certificate or financial authentication certificate in your name ready.\u003c/li\u003e\n\u003cli\u003eOpen “Identity Theft Prevention Service” on the official website. Select “Subscription Status Inquiry Service.”\u003c/li\u003e\n\u003cli\u003eRead and agree to the mandatory terms on the login page.\u003c/li\u003e\n\u003cli\u003eVerify your identity using your certificate.\u003c/li\u003e\n\u003cli\u003eCompare the listed lines against the contracts you actually use. For any unfamiliar line, ask the relevant carrier how it was registered.\u003c/li\u003e\n\u003c/ol\u003e\n\u003cp\u003eThe official entry page is the \u003ca href=\"https://www.msafer.or.kr/inquiry_join/ask.do\"\u003eSubscription Status Inquiry Service\u003c/a\u003e. The inquiry covers lines activated in your name as of the inquiry date. It does not check for personal data leaks.\u003c/p\u003e\n\u003cp\u003eThere is no separate deadline for submitting an inquiry. The website FAQ states that the inquiry service \u003cstrong\u003eoperates 24 hours a day\u003c/strong\u003e. However, maintenance may interrupt access, so check the notices as well.\u003c/p\u003e\n\u003ch2\u003e\n\u003ca href=\"#pass-and-kakaobank-suspension-schedule\" class=\"anchor\" id=\"pass-and-kakaobank-suspension-schedule\"\u003e\u003c/a\u003ePASS and KakaoBank Suspension Schedule\u003c/h2\u003e\n\u003cp\u003eKT PASS, LGU+ PASS, and KakaoBank have different suspension start times. The affected features are subscription status inquiries and subscription restrictions within the apps. The schedule below follows the \u003ca href=\"https://msafer.or.kr/notice/detail.do?serial=1244\"\u003enotice of temporary suspension on linked platforms\u003c/a\u003e.\u003c/p\u003e\n\u003cdiv class=\"overflow-x-auto\"\u003e\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eAccess channel\u003c/th\u003e\n\u003cth\u003eSuspension starts\u003c/th\u003e\n\u003cth\u003eScheduled resumption\u003c/th\u003e\n\u003cth\u003eExceptions and alternatives\u003c/th\u003e\n\u003c/tr\u003e\n\u003c/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd data-label=\"Access channel\"\u003eKT PASS\u003c/td\u003e\n\u003ctd data-label=\"Suspension starts\"\u003eNovember 10, 2026, at 9 a.m.\u003c/td\u003e\n\u003ctd data-label=\"Scheduled resumption\"\u003eNovember 20, 2026, at 9 a.m.\u003c/td\u003e\n\u003ctd data-label=\"Exceptions and alternatives\"\u003eWebsite access available\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd data-label=\"Access channel\"\u003eLGU+ PASS\u003c/td\u003e\n\u003ctd data-label=\"Suspension starts\"\u003eOctober 28, 2026, at 10 a.m.\u003c/td\u003e\n\u003ctd data-label=\"Scheduled resumption\"\u003eNovember 20, 2026, at 9 a.m.\u003c/td\u003e\n\u003ctd data-label=\"Exceptions and alternatives\"\u003eWebsite access available\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd data-label=\"Access channel\"\u003eKakaoBank\u003c/td\u003e\n\u003ctd data-label=\"Suspension starts\"\u003eNovember 2, 2026, at 9 a.m.\u003c/td\u003e\n\u003ctd data-label=\"Scheduled resumption\"\u003eNovember 20, 2026, at 9 a.m.\u003c/td\u003e\n\u003ctd data-label=\"Exceptions and alternatives\"\u003eWebsite access available\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd data-label=\"Access channel\"\u003eSKT PASS\u003c/td\u003e\n\u003ctd data-label=\"Suspension starts\"\u003eNo scheduled suspension\u003c/td\u003e\n\u003ctd data-label=\"Scheduled resumption\"\u003eNot applicable\u003c/td\u003e\n\u003ctd data-label=\"Exceptions and alternatives\"\u003eBrief interruptions possible during feature deployment\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd data-label=\"Access channel\"\u003eOfficial website\u003c/td\u003e\n\u003ctd data-label=\"Suspension starts\"\u003eNot affected by this linked app suspension\u003c/td\u003e\n\u003ctd data-label=\"Scheduled resumption\"\u003eNot applicable\u003c/td\u003e\n\u003ctd data-label=\"Exceptions and alternatives\"\u003eAvailable during each service’s operating hours\u003c/td\u003e\n\u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\u003c/div\u003e\n\u003cp\u003eThe app features are scheduled to resume on November 20, 2026, at 9 a.m. (South Korea) This is not a deadline for submitting an inquiry. If the features will not open in the app, use the website.\u003c/p\u003e\n\u003ch2\u003e\n\u003ca href=\"#the-difference-between-subscription-status-inquiries-and-subscription-restrictions\" class=\"anchor\" id=\"the-difference-between-subscription-status-inquiries-and-subscription-restrictions\"\u003e\u003c/a\u003eThe Difference Between Subscription Status Inquiries and Subscription Restrictions\u003c/h2\u003e\n\u003cp\u003eAn inquiry checks lines that have already been activated. Subscription restrictions block future mobile phone activations. The \u003ca href=\"https://www.msafer.or.kr/protection_use/guide.do\"\u003eservice introduction\u003c/a\u003e explains the two features separately.\u003c/p\u003e\n\u003cdiv class=\"overflow-x-auto\"\u003e\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eCategory\u003c/th\u003e\n\u003cth\u003eSubscription Status Inquiry Service\u003c/th\u003e\n\u003cth\u003eSubscription Restriction Service\u003c/th\u003e\n\u003c/tr\u003e\n\u003c/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd data-label=\"Category\"\u003ePurpose\u003c/td\u003e\n\u003ctd data-label=\"Subscription Status Inquiry Service\"\u003eCheck lines activated in your name\u003c/td\u003e\n\u003ctd data-label=\"Subscription Restriction Service\"\u003eBlock mobile phone activations in advance\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd data-label=\"Category\"\u003eWhat is checked or covered\u003c/td\u003e\n\u003ctd data-label=\"Subscription Status Inquiry Service\"\u003eTelecommunications service subscriptions as of the inquiry date\u003c/td\u003e\n\u003ctd data-label=\"Subscription Restriction Service\"\u003eNew subscriptions, number transfers, device changes, and changes of account holder\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd data-label=\"Category\"\u003eMeaning of the result\u003c/td\u003e\n\u003ctd data-label=\"Subscription Status Inquiry Service\"\u003eShows currently subscribed lines\u003c/td\u003e\n\u003ctd data-label=\"Subscription Restriction Service\"\u003eShows subscription restriction settings\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd data-label=\"Category\"\u003eIf an unfamiliar existing line is found\u003c/td\u003e\n\u003ctd data-label=\"Subscription Status Inquiry Service\"\u003eContact the relevant carrier to check\u003c/td\u003e\n\u003ctd data-label=\"Subscription Restriction Service\"\u003eDoes not replace suspension of an existing line\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd data-label=\"Category\"\u003eOperating hours in the official FAQ\u003c/td\u003e\n\u003ctd data-label=\"Subscription Status Inquiry Service\"\u003e24 hours a day\u003c/td\u003e\n\u003ctd data-label=\"Subscription Restriction Service\"\u003e09:00~22:00\u003c/td\u003e\n\u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\u003c/div\u003e\n\u003cp\u003eSimply checking your inquiry results does not enable subscription restrictions. To block additional activations, check your settings in the Subscription Restriction Service. You may need to lift the restriction to activate a mobile phone yourself.\u003c/p\u003e\n\u003ch2\u003e\n\u003ca href=\"#what-changes-starting-november-20-2026\" class=\"anchor\" id=\"what-changes-starting-november-20-2026\"\u003e\u003c/a\u003eWhat Changes Starting November 20, 2026\u003c/h2\u003e\n\u003cp\u003eAccording to the notice, the Subscription Restriction Service will be provided by default when activating a new mobile service. The effective date is \u003cstrong\u003eNovember 20, 2026\u003c/strong\u003e. The \u003ca href=\"https://msafer.or.kr/notice/detail.do?serial=1244\"\u003enotice of temporary suspension on linked platforms\u003c/a\u003e states:\u003c/p\u003e\n\u003cblockquote\u003e\n\u003cp\u003eStarting November 20, the Subscription Restriction Service will be provided by default when activating a new mobile service.\u003c/p\u003e\n\u003c/blockquote\u003e\n\u003cp\u003eThis wording applies “when activating a new mobile service.” It does not state that the service will automatically apply to all lines held by existing users on the same day. Check your current settings directly in the Subscription Restriction Service.\u003c/p\u003e\n\u003ch2\u003e\n\u003ca href=\"#what-to-do-if-you-find-an-unfamiliar-line\" class=\"anchor\" id=\"what-to-do-if-you-find-an-unfamiliar-line\"\u003e\u003c/a\u003eWhat to Do If You Find an Unfamiliar Line\u003c/h2\u003e\n\u003cp\u003eFor an unfamiliar line, ask the relevant carrier how it was registered. If you suspect identity theft, request immediate suspension of the service. The \u003ca href=\"https://www.msafer.or.kr/minwon_center/process.do\"\u003eguidance on handling suspected identity theft\u003c/a\u003e also requires setting a password to prevent the suspension from being lifted.\u003c/p\u003e\n\u003col\u003e\n\u003cli\u003eContact the carrier shown in the inquiry results to confirm whether the line was activated.\u003c/li\u003e\n\u003cli\u003eIf identity theft is suspected or confirmed, request immediate suspension of the service. Be sure to set a password to prevent the person misusing your identity from lifting the suspension.\u003c/li\u003e\n\u003cli\u003eFollow the carrier’s instructions to request an identity theft investigation. Bring your ID when submitting a mobile phone case in person.\u003c/li\u003e\n\u003cli\u003eCheck the subscription details and any debts, including billed charges. Then cooperate with the investigation and receive notification of the outcome.\u003c/li\u003e\n\u003c/ol\u003e\n\u003cp\u003eFor suspicious lines with budget mobile carriers, you can use the separate contacts listed in the official guidance. Distinguish between help with inquiry or login errors and questions about identity theft investigations.\u003c/p\u003e\n\u003cdiv class=\"overflow-x-auto\"\u003e\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSituation\u003c/th\u003e\n\u003cth\u003eContact\u003c/th\u003e\n\u003c/tr\u003e\n\u003c/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd data-label=\"Situation\"\u003eChecking how a specific line was registered\u003c/td\u003e\n\u003ctd data-label=\"Contact\"\u003eThe relevant carrier shown in the inquiry results\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd data-label=\"Situation\"\u003eSuspected identity theft involving a budget mobile line\u003c/td\u003e\n\u003ctd data-label=\"Contact\"\u003eMinistry of Science and ICT CS Center, 1335 without an area code\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd data-label=\"Situation\"\u003eTelecommunications complaint assistance for a suspicious budget mobile line\u003c/td\u003e\n\u003ctd data-label=\"Contact\"\u003eTelecommunications Complaints Mediation Center, 080-3472-119\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd data-label=\"Situation\"\u003eWebsite login or usage errors\u003c/td\u003e\n\u003ctd data-label=\"Contact\"\u003eFraudulent Subscription and Identity Theft Prevention Counseling Center, 1670-1382\u003c/td\u003e\n\u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\u003c/div\u003e\n\u003cp\u003eFor landline or internet services, also confirm the subscription with the relevant provider. The official handling guidance explains the procedure for reporting fixed-line service cases separately. Do not assume cancellation or billing issues have been resolved before the investigation results are available.\u003c/p\u003e\n\u003ch2\u003e\n\u003ca href=\"#how-to-decide-what-to-do-after-checking-at-night\" class=\"anchor\" id=\"how-to-decide-what-to-do-after-checking-at-night\"\u003e\u003c/a\u003eHow to Decide What to Do After Checking at Night\u003c/h2\u003e\n\u003cp\u003eAt night, distinguish between inquiry availability and the operating hours for subscription restrictions. The \u003ca href=\"https://msafer.or.kr/cs/faq.do\"\u003eofficial FAQ\u003c/a\u003e states that subscription restrictions are available from \u003cstrong\u003e09:00~22:00\u003c/strong\u003e. Choose your next action based on the inquiry results.\u003c/p\u003e\n\u003cdiv class=\"overflow-x-auto\"\u003e\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSituation after checking\u003c/th\u003e\n\u003cth\u003eNext action\u003c/th\u003e\n\u003c/tr\u003e\n\u003c/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd data-label=\"Situation after checking\"\u003eNo unfamiliar lines, but you want to block additional activations\u003c/td\u003e\n\u003ctd data-label=\"Next action\"\u003eCheck your settings during subscription restriction operating hours\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd data-label=\"Situation after checking\"\u003eSuspected identity theft on an unfamiliar line\u003c/td\u003e\n\u003ctd data-label=\"Next action\"\u003eImmediately ask the relevant carrier to suspend the service\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd data-label=\"Situation after checking\"\u003eThe inquiry page displays a maintenance notice\u003c/td\u003e\n\u003ctd data-label=\"Next action\"\u003eCheck the notices for the suspension period of the relevant feature\u003c/td\u003e\n\u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\u003c/div\u003e\n\u003cp\u003eSetting subscription restrictions and suspending an existing line are separate actions. Do not wait until subscription restriction operating hours to request suspension of a suspicious line. When requesting suspension, be sure to set a password to prevent it from being lifted.\u003c/p\u003e\n\u003ch2\u003e\n\u003ca href=\"#how-to-resolve-certificate-or-login-problems\" class=\"anchor\" id=\"how-to-resolve-certificate-or-login-problems\"\u003e\u003c/a\u003eHow to Resolve Certificate or Login Problems\u003c/h2\u003e\n\u003cp\u003eIf you do not have a certificate, obtain one from an issuing institution. According to the \u003ca href=\"https://msafer.or.kr/certification_center/public_certification.do\"\u003ejoint authentication certificate guidance\u003c/a\u003e, the website does not issue certificates. Check the requirements for issuance or reissuance with your financial institution or a joint certificate authority.\u003c/p\u003e\n\u003col\u003e\n\u003cli\u003eCheck the authentication guidance in the website’s “Authentication Center.”\u003c/li\u003e\n\u003cli\u003eIf instructions to install authentication software appear, follow the official guidance.\u003c/li\u003e\n\u003cli\u003eIf the error continues, try accessing the website from another PC.\u003c/li\u003e\n\u003cli\u003eIf the issue remains unresolved, contact the counseling center at 1670-1382.\u003c/li\u003e\n\u003c/ol\u003e\n\u003cp\u003eIf a waiting screen appears, wait for the connection to proceed automatically. The login page warns that refreshing or reconnecting will increase the wait. As directed in the official FAQ, use remote support only when requested by an association counselor.\u003c/p\u003e\n\u003ch2\u003e\n\u003ca href=\"#the-difference-between-text-or-email-notifications-and-direct-inquiries\" class=\"anchor\" id=\"the-difference-between-text-or-email-notifications-and-direct-inquiries\"\u003e\u003c/a\u003eThe Difference Between Text or Email Notifications and Direct Inquiries\u003c/h2\u003e\n\u003cp\u003eText notifications inform you that a telecommunications service contract has been signed. Direct inquiries let you check your current subscription status. The \u003ca href=\"https://www.msafer.or.kr/protection_use/guide.do\"\u003eservice introduction\u003c/a\u003e also explains email notifications separately.\u003c/p\u003e\n\u003cdiv class=\"overflow-x-auto\"\u003e\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eFeature\u003c/th\u003e\n\u003cth\u003eNotification method and conditions\u003c/th\u003e\n\u003c/tr\u003e\n\u003c/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd data-label=\"Feature\"\u003eText notification\u003c/td\u003e\n\u003ctd data-label=\"Notification method and conditions\"\u003eNotification that a contract has been signed when a new subscription is opened or the account holder changes\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd data-label=\"Feature\"\u003eRegistered mail notification\u003c/td\u003e\n\u003ctd data-label=\"Notification method and conditions\"\u003eFor users who cannot receive text messages on a mobile phone registered in their name\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd data-label=\"Feature\"\u003eEmail notification\u003c/td\u003e\n\u003ctd data-label=\"Notification method and conditions\"\u003eNotification of activation sent to an email address registered and verified in advance\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd data-label=\"Feature\"\u003eSubscription status inquiry\u003c/td\u003e\n\u003ctd data-label=\"Notification method and conditions\"\u003eCheck subscription status as of the inquiry date on the website\u003c/td\u003e\n\u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\u003c/div\u003e\n\u003cp\u003eIf you have applied for email notifications, check for the approval email as well. If it does not arrive, check your spam folder and the address you entered. If the issue remains unresolved, you can change the receiving address or contact the counseling center.\u003c/p\u003e\n","tags":["Voice phishing","Personal data protection"],"faqs":[{"question":"Will website inquiries also be unavailable while the linked apps are suspended?","answer":"The website will remain available as usual during this suspension of the linked apps. Check the operating hours for inquiries and subscription restrictions separately."},{"question":"When will KT PASS and LGU+ PASS be available again?","answer":"According to the notice dated October 28, 2026, service is scheduled to resume at 9 a.m. on November 20, 2026. The corresponding KakaoBank feature follows the same schedule."},{"question":"Is SKT PASS also subject to the suspension?","answer":"It is not included in the scheduled suspension. However, the notice states that temporary interruptions may occur during the feature rollout."},{"question":"Do I need to register or pay a fee to make an inquiry?","answer":"You can use the service after verifying your identity, without separate registration. The Identity Theft Prevention Service is described as free in its official introduction."},{"question":"Can I only use a joint certificate?","answer":"The login screen checked supports joint certificates and financial certificates. Have a certificate issued in your own name ready."},{"question":"Can an inquiry also tell me whether my personal information has been leaked?","answer":"The inquiry covers telecommunications lines registered in your name as of the inquiry date. It is not a service that determines whether personal information has been leaked."},{"question":"If I enable subscription restrictions, will existing lines I do not recognize also be suspended?","answer":"Subscription restrictions block mobile phone activations in advance. For existing suspicious lines, you must ask the relevant carrier to suspend service."},{"question":"Is the subscription restriction service also available 24 hours a day?","answer":"The official FAQ lists the operating hours for subscription restrictions as 09:00~22:00. Subscription status inquiries are available 24 hours a day but may be interrupted during maintenance."},{"question":"Who should I contact if I find an unfamiliar line with a budget mobile carrier?","answer":"Ask the relevant budget mobile carrier how the subscription was opened. The official guidance lists 1335, with no area code, and the Telecommunications Complaint Mediation Center at 080-3472-119 as contacts for inquiries about suspicious lines."},{"question":"Do I have to complete my inquiry by November 20, 2026?","answer":"That date is the scheduled date for app features to resume and for the change to providing subscription restrictions by default. It is not an application deadline for subscription status inquiries."},{"question":"What should I do if I signed up for email notifications but have not received an approval email?","answer":"Check your spam folder and the email address you entered. If the issue persists, change the recipient email address or contact the customer support center."}],"sources":[{"url":"https://msafer.or.kr/notice/detail.do?serial=1244","title":"Msafer, Notice of Temporary Suspension of Linked Platform Services Due to Service Restructuring, October 28, 2026","type":"source"},{"url":"https://www.msafer.or.kr/inquiry_join/ask.do","title":"Msafer Subscription Status Inquiry Service","type":"source"},{"url":"https://msafer.or.kr/member/loginform.do","title":"Msafer Login and Consent to Service Use","type":"source"},{"url":"https://www.msafer.or.kr/protection_use/guide.do","title":"Introduction to the Msafer Identity Theft Prevention Service","type":"source"},{"url":"https://www.msafer.or.kr/minwon_center/process.do","title":"Msafer Guide to Handling Suspected Identity Theft","type":"source"},{"url":"https://msafer.or.kr/cs/faq.do","title":"Msafer Frequently Asked Questions, Guide to Operating Hours, Login, Email, and Remote Support","type":"source"},{"url":"https://msafer.or.kr/certification_center/public_certification.do","title":"Msafer Joint Certificate Guide","type":"source"}],"images":[{"id":2711,"url":"https://injoys.com/rails/active_storage/blobs/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NDE2NjAsInB1ciI6ImJsb2JfaWQifX0=--ba7fb77297ac08bdde0f9352fad060b6c74512ab/ai-b7c81f8f.webp","is_representative":true,"generation_method":"ai_photo","license":"ai_generated","mime_type":"image/webp","width":1536,"height":1024,"translations":{"ko":{"alt":"짧은 은발의 노년 여성이 나무 식탁 위 스마트폰 옆에 놓인 태블릿 화면을 살펴보고 있다.","caption":"연계 앱의 서비스 중단 기간에도 공식 홈페이지에서 본인 명의 통신회선을 조회할 수 있습니다.","description":null},"en":{"alt":"An older woman with short gray hair looks at a tablet beside a smartphone on a wooden table.","caption":"You can check phone lines registered in your name on the official website even while the linked app service is unavailable.","description":null},"ja":{"alt":"短い白髪の年配女性が、木の食卓でスマートフォンの隣に置かれたタブレットを見ている。","caption":"連携アプリのサービス停止期間中も、公式サイトで本人名義の通信回線を確認できます。","description":null},"es":{"alt":"Una mujer mayor de pelo canoso corto mira una tableta junto a un móvil sobre una mesa de madera.","caption":"Puedes consultar las líneas a tu nombre en el sitio web oficial aunque el servicio de la aplicación vinculada no esté disponible.","description":null},"id":{"alt":"Seorang perempuan lansia berambut pendek beruban melihat tablet di samping ponsel di atas meja kayu.","caption":"Anda tetap dapat memeriksa nomor telepon atas nama Anda di situs resmi saat layanan aplikasi terkait tidak tersedia.","description":null},"pt":{"alt":"Uma mulher idosa de cabelo grisalho curto olha um tablet ao lado de um celular sobre uma mesa de madeira.","caption":"Você pode consultar as linhas em seu nome no site oficial mesmo quando o serviço do aplicativo vinculado estiver indisponível.","description":null},"zh-hant":{"alt":"一位留著銀色短髮的年長女性，在木製餐桌前查看放在智慧型手機旁的平板電腦。","caption":"連動應用程式的服務暫停期間，仍可透過官方網站查詢本人名下的電信線路。","description":null},"de":{"alt":"Eine ältere Frau mit kurzen grauen Haaren betrachtet ein Tablet neben einem Smartphone auf einem Holztisch.","caption":"Auch wenn der Dienst der verknüpften App nicht verfügbar ist, können Sie auf der offiziellen Website die auf Ihren Namen registrierten Telefonanschlüsse prüfen.","description":null}}},{"id":2712,"url":"https://injoys.com/rails/active_storage/blobs/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NDE2NjYsInB1ciI6ImJsb2JfaWQifX0=--50f0e9058698d3c9274df7065b7d1b13cdf4209a/ai-54206650.webp","is_representative":false,"generation_method":"ai_semi","license":"ai_generated","mime_type":"image/webp","width":1536,"height":1024,"translations":{"ko":{"alt":"밤에 소파에 앉아 통화하는 남성과 탁자 위 태블릿, 옆에 겹쳐진 일시정지·자물쇠 기호","caption":"명의도용이 의심되면 통신사에 즉시 이용정지와 정지해제 방지용 비밀번호 설정을 요청하세요.","description":null},"en":{"alt":"A man on a sofa making a phone call, with a tablet on the table and overlaid pause and padlock symbols","caption":"If you suspect identity theft, ask your carrier to suspend service immediately and set a password to prevent unauthorized reactivation.","description":null},"ja":{"alt":"夜のソファで電話する男性と、テーブル上のタブレット、重ねて表示された一時停止と南京錠のマーク","caption":"名義の不正利用が疑われる場合は、通信会社に直ちに利用停止と無断での再開を防ぐパスワードの設定を依頼してください。","description":null},"es":{"alt":"Un hombre llama desde el sofá, con una tableta en la mesa y símbolos superpuestos de pausa y candado","caption":"Si sospechas una suplantación de identidad, solicita a tu operadora la suspensión inmediata y una contraseña para impedir reactivaciones no autorizadas.","description":null},"id":{"alt":"Pria menelepon di sofa, dengan tablet di meja serta simbol jeda dan gembok yang ditampilkan di sampingnya","caption":"Jika mencurigai pencurian identitas, minta operator segera menangguhkan layanan dan menetapkan kata sandi untuk mencegah pengaktifan kembali tanpa izin.","description":null},"pt":{"alt":"Um homem ao telefone no sofá, com um tablet na mesa e símbolos sobrepostos de pausa e cadeado","caption":"Se suspeitar de uso indevido da sua identidade, peça à operadora a suspensão imediata e uma senha para impedir a reativação não autorizada.","description":null},"zh-hant":{"alt":"夜晚坐在沙發上打電話的男子，桌上放著平板電腦，旁邊疊加暫停與掛鎖符號","caption":"若懷疑身分遭冒用，請立即向電信業者申請停用，並設定密碼以防止未經授權恢復使用。","description":null},"de":{"alt":"Ein Mann telefoniert auf dem Sofa, davor ein Tablet auf dem Tisch; daneben eingeblendete Pause- und Schlosssymbole","caption":"Bei Verdacht auf Identitätsmissbrauch bitten Sie Ihren Anbieter um sofortige Sperrung und ein Passwort gegen unbefugte Reaktivierung.","description":null}}}],"published_at":"2026-11-11T17:44:33+09:00","updated_at":"2026-11-11T17:44:33+09:00","license":"cc_by","translation_status":"reviewed","available_locales":["ko","en","ja","es"],"data_locales":["ko","en","ja","es","id","pt","zh-hant","de"],"url":"https://injoys.com/en/articles/msafer-2026-line-lookup-app-suspension"}