# Mexico telecom registration & legal challenges > Live situation record from CLSTR: https://clstr.news/situations/mexico-accelerates-curplinked-mobile-line-registration-as-deadline-approaches > Updated: 2026-08-31T01:14:44.000Z. Sources: 171. Developments: 55. The CRT’s CURP-linking programme is entering its final phase. By mid-August 2026, approximately 71 million lines have been successfully linked. The first phase of the staggered suspension schedule began on 15 August, targeting mobile numbers ending in 0. The CRT has stated that “there will be no extension” for this initial group, and service for non-compliant lines was scheduled for suspension within 72 hours of the deadline. Following the August 15 deadline for lines ending in 0, the CRT reported that 9,675,589 lines (78.9% of that block) were successfully linked, while approximately 2.6 million lines remain suspended. However, authorities noted that 2,353,453 previously suspended lines have already been reactivated through successful registration. As the rollout continues, the deadline for users with numbers ending in 1 is August 31, 2026. As of August 29, national registration progress reached 64%, leaving more than one-third of the country’s lines unregistered. Users can reactivate suspended service by providing a valid ID, CURP, and completing a facial recognition “life test” through their provider. In response to the mandate, political parties including Acción Nacional (PAN) and Movimiento Ciudadano are assisting citizens in filing legal injunctions, known as amparos. Movimiento Ciudadano deputy Francisco Sánchez Villegas announced that injunctions have been obtained to protect users with numbers ending in 0 or 1, preventing service cancellations. Sánchez Villegas characterized the requirements as the ‘Spy Law’ (Ley Espía), arguing that the threat of suspension pressures citizens into surrendering personal data. President Claudia Sheinbaum has defended the mandate as a vital tool to combat extortion and fraud, noting that roughly 80% of such crimes are committed via anonymous lines. ## Claims - The registration deadline for mobile lines ending in 1 is August 31. (disputed by 14 sources) - The registration deadline for lines ending in 1 is August 31, 2026. (disputed by 12 sources) - A total of about 68 million mobile lines have been linked to user identities. (disputed by 8 sources) - As of July, 69,666,315 mobile lines (48.5 % of 144 million) have been linked to the CURP. (disputed by 5 sources) - Approximately 71 million phone lines have been successfully linked to personal data in the country. (disputed by 5 sources) - The CRT has established a mandatory registration process to link mobile lines with user identities. (corroborated by 24 sources) - As of August 19, 9,675,589 mobile lines ending in 0 have been successfully linked. (corroborated by 18 sources) - Over 2.35 million suspended lines have been reactivated following the linking process. (corroborated by 18 sources) ## Timeline ### 2026-08-31: Mexico mobile registration deadline for numbers ending in 1 Mexican mobile users with numbers ending in 1 must register their lines by August 31 to avoid temporary service suspension under CRT regulations. 7 sources. https://clstr.news/cluster/mexico-mobile-registration-deadline-for-numbers-ending-in-1 ### 2026-08-24: Francisco Sánchez secures injunctions against mobile service cancellations Mexican deputy Francisco Sánchez Villegas announced legal injunctions protecting mobile users with numbers ending in zero or one from service cancellation due to mandatory data registration. 4 sources. https://clstr.news/cluster/francisco-snchez-secures-injunctions-against-mobile-service-cancellations ### 2026-08-22: Mexican political parties offer legal aid against mobile phone registration Mexican political parties are helping citizens file legal injunctions against federal mandates requiring mobile phone lines to be linked with CURP and biometric data. 3 sources. https://clstr.news/cluster/mexican-political-parties-offer-legal-aid-against-mobile-phone-registration ### 2026-08-19: Mexico mobile registration: deadline for lines ending in 1 is August 31 Mexico's CRT reports 78.9% of mobile lines ending in '0' are now registered. Users with lines ending in '1' must complete mandatory identity linking by August 31 to avoid service suspension. 27 sources. https://clstr.news/cluster/mexico-begins-mobile-service-suspensions-for-unlinked-phone-lines ### 2026-08-17: Mexico begins mobile line suspensions for unregistered users Mexico has started suspending mobile lines that lack identity registration. The CRT-led measure aims to combat fraud and extortion through a staggered deadline schedule based on phone number endings. 38 sources. https://clstr.news/cluster/mexico-begins-suspending-unregistered-mobile-phone-lines ### 2026-08-13: Mexico mobile registration deadline for lines ending in 0 Mexico's CRT has set August 15 as the deadline for registering mobile lines ending in '0'. Unregistered lines face service suspension within 72 hours to combat telephone fraud and extortion. 20 sources. https://clstr.news/cluster/mexico-to-suspend-unregistered-mobile-lines-to-combat-extortion ### 2026-08-11: Mexico begins staggered mobile line suspensions for unregistered users Mexico begins a staggered suspension of mobile lines starting August 15 for users who fail to complete mandatory identity registration, targeting numbers ending in 0 first. 10 sources. https://clstr.news/cluster/mexico-mobile-market-sees-5-million-line-deactivations-amid-registration-mandate ### 2026-08-05: Mexico mobile registration deadline approaches for unregistered lines Mexico's CRT begins staggered service suspensions for unregistered mobile lines starting August 15, 2026. Over 51% of the country's mobile lines still require CURP identity linkage. 9 sources. https://clstr.news/cluster/mexico-to-suspend-unregistered-mobile-lines-starting-august-2026 ### 2026-08-03: Mexico's prepaid phone registration deadline may suspend lines Mexico's government requires prepaid phone lines to be linked to the CURP by a staggered deadline—ending in 0 by Aug 15, later digits by Dec 31—otherwise carriers may suspend service, affecting apps like Whats 3 sources. https://clstr.news/cluster/mexicos-prepaid-phone-registration-deadline-may-suspend-lines ### 2026-08-02: Mexico Deputy Francisco Sánchez Villegas files largest mass amparo against mandatory phone registration Deputy Francisco Sánchez Villegas filed Mexico's largest mass amparo to stop mandatory cell phone registration, seeking a court order to protect citizens' rights. 5 sources. https://clstr.news/cluster/mexico-deputy-francisco-snchez-villegas-files-largest-mass-amparo-against-mandatory-phone-registrati ### 2026-07-30: Mexico sets deadlines for mandatory cell phone registration with CURP Mexico’s telecom regulator CRT mandates linking mobile numbers to CURP, with exemptions for limited‑function SIMs and emergency lines; registration deadlines for 2026 run from mid‑August to year‑end, and non‑co 5 sources. https://clstr.news/cluster/mexico-sets-deadlines-for-mandatory-cell-phone-registration-with-curp ### 2026-07-28: Mexico registers 68 million mobile lines, Sheinbaum rejects control claims Mexico has linked 68 million mobile lines to users' CURP to combat extortion; the data are held by telecom firms, not the government, and Sheinbaum denied control claims while opening a debate on school phone‑i 19 sources. https://clstr.news/cluster/mexicos-sheinbaum-says-phone-registration-targets-crime-not-control ### 2026-07-28: Mexico to suspend unregistered prepaid mobile lines as deadlines approach Mexico’s telecom program has linked 68 million lines, leaving about 40 million prepaid lines unregistered. Staggered deadlines (15 Aug–31 Dec 2026) require registration; a 72‑hour grace follows each deadline, 17 sources. https://clstr.news/cluster/mexico-sets-deadline-for-prepaid-phone-registration-by-december ### 2026-07-22: Mexico's mandatory cell phone registration trims AT&T prepaid users Mexico's new cell‑phone registration in Yucatán, starting August 2026, forces users to identify lines or face service limits, causing AT&T México to lose a million prepaid users while post‑paid accounts rise. 5 sources. https://clstr.news/cluster/mexicos-mandatory-cell-phone-registration-trims-att-prepaid-users ### 2026-07-22: Mexico's Telecom Regulator Extends Mobile Phone Registration Deadline Mexico's telecom regulator CRT extended the mobile‑phone registration deadline, rolling it out by last‑digit windows through December to avoid mass line suspensions; only 41% of lines were registered so far. 2 sources. https://clstr.news/cluster/mexicos-telecom-regulator-extends-mobile-phone-registration-deadline ### 2026-07-15: Mexico warns unregistered phone lines could block digital banking Mexico's telecom regulator mandates linking mobile numbers to identities by Dec 2026; unregistered lines risk service suspension, blocking digital banking access and threatening billions in debt collection. 2 sources. https://clstr.news/cluster/mexico-warns-unregistered-phone-lines-could-block-digital-banking ### 2026-07-14: Mexican Lawmaker Files Amparo to Block Cellphone Registration Mexican deputy Francisco Sánchez Villegas filed a massive amparo in Mexico City courts to overturn mandatory cellphone registration, calling it a privacy violation and launching a nationwide signature campaign. 3 sources. https://clstr.news/cluster/mexican-lawmaker-files-amparo-to-block-cellphone-registration ### 2026-07-07: Mexico faces millions‑wide disruption as 2G and 3G networks risk premature shutdown Mexico’s 5G expansion risks disconnecting millions if 2G/3G networks are shut down before affordable 4G/5G phones become widespread. 2 sources. https://clstr.news/cluster/mexico-faces-millionswide-disruption-as-2g-and-3g-networks-risk-premature-shutdown ### 2026-07-04: Mexico launches online tool to check mobile numbers linked to CURP Mexico’s telecom firms now must let users query how many mobile lines are tied to their CURP or RFC, showing only the last four digits and allowing unlinking of unused numbers. 2 sources. https://clstr.news/cluster/mexico-launches-online-tool-to-check-mobile-numbers-linked-to-curp ### 2026-07-03: Mexican Judge Grants Provisional Suspension of Mandatory Phone Registration and Biometric Data Requirement A Mexican judge temporarily blocks the mandatory phone‑line registration and biometric data rule for a citizen, fueling debate over privacy and the government’s telecom policy. 8 sources. https://clstr.news/cluster/mexican-courts-grant-provisional-suspensions-in-telecom-privacy-and-infrastructure-cases ### 2026-07-02: Mexico banks implement new credit‑guarantee rules and cash‑deposit ID requirement Mexico's SHCP and CNBV now allow third‑party guarantees for loans, and ABM requires ID for cash transactions of 140,000 pesos or more, both effective July 2026. 3 sources. https://clstr.news/cluster/mexico-banks-implement-new-creditguarantee-rules-and-cashdeposit-id-requirement ### 2026-07-01: Mexico's CRT Extends Mobile Line Registration Deadline Mexico's telecom regulator CRT extended the mobile line registration deadline by 184 days, set a staggered timeline based on number endings, added a mandatory proof‑of‑life step for in‑person registrations, and 3 sources. https://clstr.news/cluster/mexicos-crt-extends-mobile-line-registration-deadline ### 2026-06-30: Mexico extends deadline for mandatory mobile number‑CURP registration Mexico has pushed back the deadline for its mandatory mobile‑line registration linking numbers to CURP, with new cut‑offs from August 15 to December 31; 63 million lines are registered and operators hold the ID 2 sources. https://clstr.news/cluster/mexico-extends-deadline-for-mandatory-mobile-numbercurp-registration ### 2026-06-29: Mexico Stages Staggered Extension for Mandatory Mobile Phone Registration Mexico’s CRT has replaced the June 30 deadline with a staggered registration schedule through Dec 2026, tying cut‑offs to phone‑number digits and suspending unregistered lines for 72 hours. 4 sources. https://clstr.news/cluster/mexico-stages-staggered-extension-for-mandatory-mobile-phone-registration ### 2026-06-29: Mexico's Telecom Regulator Extends Mobile Line Registration Deadline Mexico's CRT extends the prepaid mobile line registration deadline, assigning new dates by last digit of the number and preventing a planned suspension on 30 June 2026. 2 sources. https://clstr.news/cluster/mexicos-telecom-regulator-extends-mobile-line-registration-deadline ### 2026-06-28: Mexico banks to require ID, biometrics for large cash withdrawals and enforce MTU limits Mexican banks will, from July 2026, require ID and biometrics for cash transactions of 140k pesos, enforce default MTU limits, and adopt advanced e‑signatures for credit processes. 10 sources. https://clstr.news/cluster/mexico-banks-to-impose-new-transaction-limits-and-id-checks-in-2026 ### 2026-06-27: Mexico's CONCANACO urges family businesses to adopt new digital and anti‑money‑laundering regulations CONCANACO SERVYTUR urges Mexican family businesses to adopt telecom line‑linking for digital security and new AML rules requiring updated compliance and rapid reporting. 4 sources. https://clstr.news/cluster/mexicos-concanaco-urges-family-businesses-to-adopt-new-mobile-id-and-antimoneylaundering-rules ### 2026-06-26: Mexico telecom regulator extends prepaid line registration deadline Mexico's CRT extended the deadline for prepaid phones to link to a CURP, using a digit‑based calendar ending 31 Dec. Unregistered lines face limited service, while experts warn about risks from number reassig­n 2 sources. https://clstr.news/cluster/mexico-telecom-regulator-extends-prepaid-line-registration-deadline ### 2026-06-25: Mexico Extends Deadline for SIM‑CURP Registration to End of 2024 Mexico extends the SIM‑CURP registration deadline to Dec 31, 2024 with a digit‑based schedule; 63 million of 144 million lines are linked, and non‑compliant users face service suspension. 2 sources. https://clstr.news/cluster/mexico-extends-deadline-for-simcurp-registration-to-end-of-2024 ### 2026-06-24: Mexico extends deadline for mandatory mobile phone registration Mexico's telecom regulator CRT extends the mandatory mobile line registration deadline to 31 Dec 2026, using a digit‑based calendar; unregistered lines face a 72‑hour suspension. 32 sources. https://clstr.news/cluster/mexico-extends-sim-registration-deadlines-risks-service-suspension-for-prepaid-users ### 2026-06-24: Mexico advances mandatory cellphone registration linked to CURP Mexico's federal decree mandates linking mobile lines to CURP/RFC by June 30, 2026, sparking business support for security benefits and PAN opposition over privacy risks. 2 sources. https://clstr.news/cluster/mexico-advances-mandatory-cellphone-registration-linked-to-curp ### 2026-06-23: Mexico telecom regulator extends phone registration deadline Mexico’s telecom regulator CRT extends the phone‑line registration deadline to Dec 2026, using a digit‑based calendar; failure to register leads to 72‑hour service suspension, affecting millions of users. 17 sources. https://clstr.news/cluster/att-registers-9-million-lines-in-mexico-as-prepaid-users-lag-behind ### 2026-06-20: Mexico weighs 120‑day extension for mandatory mobile line registration Mexico’s CRT may grant a 120‑day extension for mandatory mobile line registration as millions remain unlinked, prompting warnings that unregistered users could lose SMS‑based services, though bank accounts stay 2 sources. https://clstr.news/cluster/mexico-telecom-regulator-weighs-120day-extension-for-cellphone-registration ### 2026-06-19: Mexico's telecom regulator warns of service cuts if phone lines not registered Mexico's CRT will disable most mobile functions after 30 June for phones not registered, affecting apps like WhatsApp and banking services; only 911 calls will work. 2 sources. https://clstr.news/cluster/mexicos-telecom-regulator-warns-of-service-cuts-if-phone-lines-not-registered ### 2026-06-18: Mexico advances mandatory mobile‑line registration with CURP link Mexico requires all mobile lines to be linked to a CURP by 29 June 2026; over half of 144 million lines are already registered, with exemptions for non‑voice IoT SIMs. 2 sources. https://clstr.news/cluster/mexico-advances-mandatory-mobileline-registration-with-curp-link ### 2026-06-18: Mexico government sets June deadline for mobile SIM registration Mexico’s government orders mobile operators to verify user identities by 30 June, threatening service cuts for non‑compliance amid privacy concerns and a history of failed registration schemes. 2 sources. https://clstr.news/cluster/mexico-government-sets-june-deadline-for-mobile-sim-registration ### 2026-06-18: Mexico regulator sets deadline for phone registration, auto‑links postpaid lines Mexico’s telecom regulator sets a June 30 deadline for cellular line registration; postpaid lines are auto‑linked, while prepaid users must register to avoid suspension. 2 sources. https://clstr.news/cluster/mexico-regulator-sets-deadline-for-phone-registration-autolinks-postpaid-lines ### 2026-06-16: Mexico's Mobile Line Registration Deadline Threatens WhatsApp and Banking App Access Mexico's telecom regulator set a June 30 deadline for linking mobile numbers to the CURP; unregistered lines risk suspension, which could block WhatsApp, banking apps and other services that rely on SMS. 3 sources. https://clstr.news/cluster/mexicos-mobile-line-registration-deadline-threatens-whatsapp-and-banking-app-access ### 2026-06-15: Mexico Requires All Mobile Lines to be Registered by June 30 Mexico’s telecom regulator CRT mandates that all mobile lines be linked to a CURP or RFC by June 30, or service will be limited to emergency calls; roughly 59 million lines have already complied. 2 sources. https://clstr.news/cluster/mexico-requires-all-mobile-lines-to-be-registered-by-june-30 ### 2026-06-14: Mexico's mobile phone registration deadline ends June 30, risking service loss for millions Mexico's telecom regulator set a June 30 deadline for mobile number registration; about 92 million lines risk suspension from July 1, limiting service to 911 and emergency alerts and affecting apps that rely on 3 sources. https://clstr.news/cluster/mexicos-mobile-phone-registration-deadline-ends-june-30-risking-service-loss-for-millions ### 2026-06-12: Unregistered mobile lines can block banking app access Suspended, unregistered mobile lines can stop SMS verification, blocking access to banking apps and other digital services. 2 sources. https://clstr.news/cluster/unregistered-mobile-lines-can-block-banking-app-access ### 2026-06-11: Mexico's mobile line registration lags as June 30 deadline looms Mexico's CRT says only 58 million of 144 million mobile lines are linked, risking suspension of 86 million lines by the June 30 deadline. 2 sources. https://clstr.news/cluster/mexicos-mobile-line-registration-lags-as-june-30-deadline-looms ### 2026-06-08: Mexico Telecom Regulator Sets June 30 Deadline for Mobile Line Registration Mexico's telecom regulator requires all mobile lines to be registered by June 30 or users will lose calls, data, SMS, and app access; operators can use existing data for post‑paid lines per CRT guidance. 2 sources. https://clstr.news/cluster/mexico-telecom-regulator-sets-june-30-deadline-for-mobile-line-registration ### 2026-06-08: Mexico's Black Market for SIM Chips Surges Amid Mandatory Registration Mexico's mandatory mobile number registration has triggered a black market for SIM chips, priced 27‑1,000 pesos, as users seek to avoid service suspension after July 1 2026. 2 sources. https://clstr.news/cluster/mexicos-black-market-for-sim-chips-surges-amid-mandatory-registration ### 2026-06-07: Mexico mandates registration of all mobile phone lines by June 30, 2026 Mexico requires all mobile numbers to be registered to an identity by 30 June 2026; unregistered lines will be suspended from 1 July, with limited emergency use only. 3 sources. https://clstr.news/cluster/mexico-mandates-registration-of-all-mobile-phone-lines-by-june-30-2026 ### 2026-06-07: Mexico to suspend mobile lines without mandatory registration after June 30 Mexico's telecom regulator says unregistered mobile lines will be suspended after June 30, cutting calls, SMS and data and disrupting banking and delivery apps; users can reactivate by registering with ID and C 2 sources. https://clstr.news/cluster/mexico-to-suspend-mobile-lines-without-mandatory-registration-after-june-30 ### 2026-06-05: Mexico's mandatory mobile registration meets legal challenges Mexico's telecom regulator imposes mandatory mobile line registration; citizens in Aguascalientes and Chihuahua file amparos, citing privacy and data‑security concerns. 2 sources. https://clstr.news/cluster/mexicos-mandatory-mobile-registration-meets-legal-challenges ### 2026-06-03: Mexico Requires Mobile Phone Line Registration by June 30, 2026 Mexico will force all mobile lines to be registered with ID by June 30 2026; failure leads to service suspension, affecting banking, ride‑hailing and messaging apps, while raising privacy concerns. 4 sources. https://clstr.news/cluster/mexico-requires-mobile-phone-line-registration-by-june-30-2026 ### 2026-06-01: Mexico's mandatory mobile‑line registration deadline threatens millions of users Mexico’s CRT deadline mandates mobile‑line registration by 30 June 2026; about 93 million lines remain unregistered, sparking user distrust and a slump in new SIM sales. 4 sources. https://clstr.news/cluster/mexicos-mandatory-mobileline-registration-deadline-threatens-millions-of-users ### 2026-05-29: Mexico's mandatory mobile line registration hit by fraud and pending deadline Mexico's CRT mandates linking all mobile numbers to CURP by June 30 2026, but street sales of pre‑registered SIMs for 200 pesos expose fraud risks and threaten the rollout. 6 sources. https://clstr.news/cluster/mexicos-mandatory-mobile-line-registration-hit-by-fraud-and-pending-deadline ### 2026-05-17: Mexico mandates mobile line registration by June 30, 2026 or faces service cuts Mexico's mobile users must register their phones by 30 June 2026 or risk service suspension. 7 sources. https://clstr.news/cluster/mexico-mandates-mobile-line-registration-by-june-30-2026-or-faces-service-cuts ### 2026-05-15: Mexico to suspend unregistered mobile phones after July 2026 deadline Mexico mandates mobile line registration by June 2026; unregistered phones will be blocked from July 1, limiting service to emergency calls. 2 sources. https://clstr.news/cluster/mexico-to-suspend-unregistered-mobile-phones-after-july-2026-deadline ### 2026-05-04: Mexico Requires Mobile Phone Line Registration by June 30, Risking Service Suspension Mexico warns unregistered mobile lines after June 30 may be suspended or blocked, urging users to register now. 3 sources. https://clstr.news/cluster/mexico-requires-mobile-phone-line-registration-by-june-30-risking-service-suspension ### 2026-04-27: Security flaws in CURP mobile registration and SIM duplication prompt court ruling and potential compensation CURP mobile-registration flaws and a SIM-duplication ruling reveal telecom security gaps. 2 sources. https://clstr.news/cluster/security-flaws-in-curp-mobile-registration-and-sim-duplication-prompt-court-ruling-and-potential-com ### 2026-04-20: Mexico's CURP-linked mobile registrations lag as deadline nears Only about 19-20% of Mexico's 158 million mobile lines are CURP-registered as the deadline approaches; unregistered lines face service termination from July 1. 3 sources. https://clstr.news/cluster/mexicos-curp-linked-mobile-registrations-lag-as-deadline-nears --- Cite as: Mexico telecom registration & legal challenges. CLSTR, https://clstr.news/situations/mexico-accelerates-curplinked-mobile-line-registration-as-deadline-approaches