NumberResearch Membership · Data 2026-04

Recent prefix assignments

5 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 2026-04

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

Which carriers received which NPA-NXX prefixes, and where. Assignments are initial assignments from NANPA records — because of number portability, the current serving carrier of individual numbers may differ. For finer-grained activity, see the thousands-block view above.

Most active assignees, last 30 days
T-MOBILE USA, INC. 5
New assignments by month Sep 2026 Aug 2026 Jul 2026 Jun 2026 May 2026 Apr 2026 Mar 2026 Feb 2026 Jan 2026 Dec 2025 Nov 2025 Oct 2025
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Recent NPA-NXX prefix assignments
AssignedNPA-NXXAssigneeOCNRate centerState
2006-02-22 408-677 T-MOBILE USA, INC. 6529 SNJS SOUTH CA
2006-02-22 661-794 T-MOBILE USA, INC. 6529 PLDL PLDL CA
2006-02-17 818-826 T-MOBILE USA, INC. 6529 VAN NUYS CA
2006-02-14 715-807 T-MOBILE USA, INC. 6529 RHINELANDR WI
2006-02-07 505-516 T-MOBILE USA, INC. 6529 FARMINGTON NM
2006-02-03 805-837 T-MOBILE USA, INC. 6529 SANBARBARA CA
2006-02-01 480-370 T-MOBILE USA, INC. 6529 PHOENIX AZ
2006-01-31 928-488 T-MOBILE USA, INC. 6529 YUMA AZ
2006-01-26 760-596 T-MOBILE USA, INC. 6529 VICTORVL CA
2006-01-26 760-927 T-MOBILE USA, INC. 6529 VICTORVL CA
2006-01-26 949-748 T-MOBILE USA, INC. 6529 IRVINE CA
2006-01-26 951-260 T-MOBILE USA, INC. 6529 HEMT HEMT CA
2006-01-25 210-880 T-MOBILE USA, INC. 6529 SANANTONIO TX
2006-01-25 219-487 T-MOBILE USA, INC. 6529 GARY IN
2006-01-25 541-848 T-MOBILE USA, INC. 6529 BEND OR
2006-01-24 951-691 T-MOBILE USA, INC. 6529 MURRIETA CA
2006-01-20 253-298 T-MOBILE USA, INC. 6529 TACOMA WA
2006-01-18 702-557 T-MOBILE USA, INC. 6529 LAS VEGAS NV
2006-01-12 503-927 T-MOBILE USA, INC. 6529 PORTLAND OR
2006-01-10 909-809 T-MOBILE USA, INC. 6529 REDLANDS CA
2006-01-09 712-577 T-MOBILE USA, INC. 6529 SIOUX CITY IA
2006-01-06 432-603 T-MOBILE USA, INC. 6529 VAN HORN TX
2006-01-06 562-786 T-MOBILE USA, INC. 6529 LONG BEACH CA
2006-01-06 619-638 T-MOBILE USA, INC. 6529 CHULAVISTA CA
2006-01-05 210-995 T-MOBILE USA, INC. 6529 SANANTONIO TX
2005-12-31 641-251 T-MOBILE USA, INC. 6529 FORESTCITY IA
2005-12-16 909-961 T-MOBILE USA, INC. 6529 RIALTO CA
2005-12-16 951-742 T-MOBILE USA, INC. 6529 RIVERSIDE CA
2005-12-14 505-901 T-MOBILE USA, INC. 6529 ESPANOLA NM
2005-12-14 714-855 T-MOBILE USA, INC. 6529 ANAHEIM CA
2005-12-14 909-965 T-MOBILE USA, INC. 6529 S BERNDINO CA
2005-12-12 951-902 T-MOBILE USA, INC. 6529 MORENO CA
2005-12-07 702-927 T-MOBILE USA, INC. 6529 LAS VEGAS NV
2005-12-06 224-616 T-MOBILE USA, INC. 6529 GLENVIEW IL
2005-12-06 224-770 T-MOBILE USA, INC. 6529 BARRINGTON IL
2005-12-03 920-603 T-MOBILE USA, INC. 6529 STURGEONBY WI
2005-11-30 702-237 T-MOBILE USA, INC. 6529 LAS VEGAS NV
2005-11-30 702-406 T-MOBILE USA, INC. 6529 LAS VEGAS NV
2005-11-29 575-517 T-MOBILE USA, INC. 6529 SOCORRO NM
2005-11-29 805-758 T-MOBILE USA, INC. 6529 OXNARD CA
2005-11-21 224-260 T-MOBILE USA, INC. 6529 GLENVIEW IL
2005-11-21 708-620 T-MOBILE USA, INC. 6529 TINLEYPARK IL
2005-11-14 405-371 T-MOBILE USA, INC. 6529 OKLA CITY OK
2005-11-11 319-288 T-MOBILE USA, INC. 6529 KEOSAUQUA IA
2005-11-01 213-822 T-MOBILE USA, INC. 6529 LSAN DA 01 CA
2005-10-21 503-841 T-MOBILE USA, INC. 6529 PORTLAND OR
2005-10-19 773-563 T-MOBILE USA, INC. 6529 CHICGOZN10 IL
2005-10-17 501-613 T-MOBILE USA, INC. 6529 LITTLEROCK AR
2005-10-11 951-796 T-MOBILE USA, INC. 6529 PERRIS CA
2005-10-10 773-621 T-MOBILE USA, INC. 6529 CHICGOZN03 IL

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 2026-04 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.