# OSIPTEL device blocking and mobile fraud prevention > Live situation record from CLSTR: https://clstr.news/situations/peru-osiptel-phone-blocking-enforcement > Updated: 2026-08-28T11:00:01.000Z. Sources: 30. Developments: 16. Since April 2025, OSIPTEL’s crackdown on illegally reflashed and unregistered devices has blocked over 4.9 million mobile phones as of August 2026. The regulator continues to enforce progressive blocking stages, targeting devices not on the Renteseg white list to combat black-market trade and phone-based extortion, which involves anonymous calls in 87% of cases. In August 2026, OSIPTEL executed the first stage of a scheduled 360,000-device block on August 11, targeting 120,000 units. Two subsequent stages of 120,000 devices each are scheduled for August 18 and August 25. These measures affect equipment not included in the Renteseg white list and those linked to individuals previously associated with altered International Mobile Equipment Identity (IMEI) numbers. Mobile operators must notify affected subscribers via SMS within two business days. Beyond device blocking, OSIPTEL is addressing identity theft and data misuse. In the Piura region, the regulator reported 5,750 cases of unrecognized mobile phone lines between January and July 2026, with a peak of 1,007 cases in July. To combat this, OSIPTEL encourages the use of the ‘Checa tus líneas’ platform, which allows users to verify lines registered under their National Identity Document (DNI). If fraud is detected, users can report it via facial verification through the ID Perú app. Once reported, telecommunications operators are required to address the request within three business days. Service performance and satisfaction metrics show mixed results. In May 2026, 4G internet performance averaged 80.29%, with Entel leading operator scores. While 2025 satisfaction surveys showed a rise in mobile service satisfaction to 65%, the 2025 User Service Quality Ranking revealed that only Claro and Bitel met the regulator’s 15-point quality target. ## Timeline ### 2026-08-28: Osiptel reports over 5,700 unrecognized mobile lines in Piura Osiptel reported over 5,700 unrecognized mobile lines in Piura, Peru, prompting calls for citizens to use the ‘Checa tus líneas’ tool to prevent identity theft. 2 sources. https://clstr.news/cluster/osiptel-reports-over-5700-unrecognized-mobile-lines-in-piura ### 2026-08-13: OSIPTEL to block 360,000 mobile devices in August OSIPTEL is blocking 360,000 mobile devices in August to combat illegal trade and IMEI alteration. Users must register devices via Renteseg to avoid service disruption. 2 sources. https://clstr.news/cluster/osiptel-to-block-360000-mobile-devices-in-august ### 2026-08-11: Osiptel to block 360,000 mobile devices in Peru Peru's regulator Osiptel will block 360,000 mobile devices in August to combat illegal trade and the use of altered IMEI numbers. 3 sources. https://clstr.news/cluster/osiptel-to-block-360000-mobile-devices-in-peru ### 2026-07-31: OSIPTEL launches consumer telecom tools at Lima International Book Fair OSIPTEL showcased free digital tools for checking mobile lines, coverage, device prices, IMEI status and registration at Lima’s International Book Fair, using the “family Telecom” characters to guide consumers. 2 sources. https://clstr.news/cluster/osiptel-launches-consumer-telecom-tools-at-lima-international-book-fair ### 2026-07-29: OSIPTEL guides telecom users at Paita fair in Peru OSIPTEL held a consumer‑rights fair in Paita, Peru, advising users on telecom services and promoting the “Checa tus líneas” and “Checa tu caso” apps for line verification and complaints. 5 sources. https://clstr.news/cluster/osiptel-guides-telecom-users-at-paita-fair-in-peru ### 2026-07-14: Peru's OSIPTEL to block 360,000 mobile phones in July OSIPTEL will block about 360,000 phones in Peru in July on three dates, targeting unregistered or altered IMEIs to fight illegal device sales. 3 sources. https://clstr.news/cluster/perus-osiptel-to-block-360000-mobile-phones-in-july ### 2026-07-13: Peru advances rural electrification and telecom oversight initiatives Peru finished eight rural electrification projects serving over 27,000 people, and telecom regulator OSIPTEL audited 42 service centers in Piura, finding compliance gaps and advising consumers. 6 sources. https://clstr.news/cluster/peru-advances-rural-electrification-and-telecom-oversight-initiatives ### 2026-07-09: Guatemala approves number portability law while Peru sees decline in mobile portings Guatemala's new number‑portability law awaits regulations, while Peru's telecom regulator reports a 12% drop in mobile portings to 3.1 million in H1 2026. 2 sources. https://clstr.news/cluster/guatemala-approves-number-portability-law-while-peru-sees-decline-in-mobile-portings ### 2026-07-08: Peru blocks over 4 million mobile phones and expands 4G to 400+ rural towns Peru has blocked over 4 million phones to curb theft‑linked extortion, while a new plan will bring 4G service to 412 rural towns, benefiting about 66 000 people by mid‑2027. 2 sources. https://clstr.news/cluster/peru-blocks-over-4-million-mobile-phones-and-expands-4g-to-400-rural-towns ### 2026-07-06: Peru's OSIPTEL ranks telecom operators, only Claro and Bitel meet quality target OSIPTEL's 2025 telecom ranking shows only Claro (15.1) and Bitel (15) meet the quality target, while Entel and Movistar lag behind. 2 sources. https://clstr.news/cluster/perus-osiptel-ranks-telecom-operators-only-claro-and-bitel-meet-quality-target ### 2026-06-30: Peru regulator reports higher mobile and fixed‑line satisfaction in 2025 OSIPTEL’s 2025 survey shows Peru’s mobile satisfaction rose to 65 % (up 13 pts) and fixed‑line internet to 64 % (up 19 pts), with lower dissatisfaction but persistent connectivity issues. 2 sources. https://clstr.news/cluster/peru-regulator-reports-higher-mobile-and-fixedline-satisfaction-in-2025 ### 2026-06-26: 4G Mobile Service Launched in Peru’s Amazon Border Communities Peru’s Amazonas region launched 4G service in Guayabal and nearby Amazon border villages, part of a binational plan with Ecuador to improve digital access for health, education and public services. 2 sources. https://clstr.news/cluster/4g-mobile-service-launched-in-perus-amazon-border-communities ### 2026-06-26: Peru and Chile telecom regulators report mobile service performance and 5G rollout progress Peru's Osiptel reports improved 4G performance, while Chile's Subtel intensifies 5G inspections and sets new rollout deadlines for Wom. 2 sources. https://clstr.news/cluster/peru-and-chile-telecom-regulators-report-mobile-service-performance-and-5g-rollout-progress ### 2026-06-15: Peru's telecom regulator OSIPTEL records record mobile number portings in May 2026 OSIPTEL says 544,837 mobile lines switched operators in Peru in May 2026, 78% postpaid; Entel leads with a net gain of 11,458 lines. 2 sources. https://clstr.news/cluster/perus-telecom-regulator-osiptel-records-record-mobile-number-portings-in-may-2026 ### 2026-05-31: Peru blocks over 1.3 million mobile phones to fight illegal reflashing Peru's OSIPTEL has blocked over 1.3 million phones in 2026 to stop illegal reflashing, with 360,000 more slated for removal in May. 2 sources. https://clstr.news/cluster/peru-blocks-over-13-million-mobile-phones-to-fight-illegal-reflashing ### 2026-05-16: Peruvian regulator OSIPTEL trains telecom operators in Piura on device blocking OSIPTEL trained Movistar and Entel staff in Piura on registering foreign phones and handling consumer complaints; further sessions for Claro and Bitel planned. 2 sources. https://clstr.news/cluster/peruvian-regulator-osiptel-trains-telecom-operators-in-piura-on-device-blocking --- Cite as: OSIPTEL device blocking and mobile fraud prevention. CLSTR, https://clstr.news/situations/peru-osiptel-phone-blocking-enforcement