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
2006-06-21 530-638 T-MOBILE USA, INC. 6529 REDDING CA
2006-06-21 630-999 T-MOBILE USA, INC. 6529 SUGARGROVE IL
2006-06-21 708-407 T-MOBILE USA, INC. 6529 TINLEYPARK IL
2006-06-20 512-709 T-MOBILE USA, INC. 6529 AUSTIN TX
2006-06-20 512-961 T-MOBILE USA, INC. 6529 AUSTIN TX
2006-06-20 562-606 T-MOBILE USA, INC. 6529 LONG BEACH CA
2006-06-15 253-507 T-MOBILE USA, INC. 6529 TACOMA WA
2006-06-13 253-353 T-MOBILE USA, INC. 6529 TACOMA WA
2006-06-08 773-979 T-MOBILE USA, INC. 6529 CHICGOZN10 IL
2006-06-06 708-543 T-MOBILE USA, INC. 6529 CHICAGOHTS IL
2006-05-24 210-638 T-MOBILE USA, INC. 6529 SANANTONIO TX
2006-05-24 210-852 T-MOBILE USA, INC. 6529 SANANTONIO TX
2006-05-24 210-897 T-MOBILE USA, INC. 6529 SANANTONIO TX
2006-05-23 818-849 T-MOBILE USA, INC. 6529 VAN NUYS CA
2006-05-22 254-768 T-MOBILE USA, INC. 6529 KILLEEN TX
2006-05-22 405-512 T-MOBILE USA, INC. 6529 OKLA CITY OK
2006-05-19 760-972 T-MOBILE USA, INC. 6529 INDIO CA
2006-05-19 818-770 T-MOBILE USA, INC. 6529 VAN NUYS CA
2006-05-16 303-990 T-MOBILE USA, INC. 6529 FORTLUPTON CO
2006-05-12 818-792 T-MOBILE USA, INC. 6529 SNFN SNFN CA
2006-04-27 312-929 T-MOBILE USA, INC. 6529 CHICGOZN01 IL
2006-04-27 702-818 T-MOBILE USA, INC. 6529 LAS VEGAS NV
2006-04-26 210-797 T-MOBILE USA, INC. 6529 SANANTONIO TX
2006-04-26 210-908 T-MOBILE USA, INC. 6529 SANANTONIO TX
2006-04-26 515-333 T-MOBILE USA, INC. 6529 DES MOINES IA
2006-04-25 224-433 T-MOBILE USA, INC. 6529 LIBERTYVL IL
2006-04-25 323-742 T-MOBILE USA, INC. 6529 MONTEBELLO CA
2006-04-10 702-727 T-MOBILE USA, INC. 6529 LAS VEGAS NV
2006-04-05 314-827 T-MOBILE USA, INC. 6529 ST LOUIS MO
2006-04-05 573-705 T-MOBILE USA, INC. 6529 FARMINGTON MO
2006-04-04 515-745 T-MOBILE USA, INC. 6529 DES MOINES IA
2006-04-03 316-244 T-MOBILE USA, INC. 6529 EL DORADO KS
2006-04-03 469-230 T-MOBILE USA, INC. 6529 GRANDPRARI TX
2006-04-03 469-684 T-MOBILE USA, INC. 6529 GRANDPRARI TX
2006-04-03 469-734 T-MOBILE USA, INC. 6529 MCKINNEY TX
2006-03-30 424-901 T-MOBILE USA, INC. 6529 W ANGELES CA
2006-03-28 714-725 T-MOBILE USA, INC. 6529 WESTMINSTR CA
2006-03-28 805-824 T-MOBILE USA, INC. 6529 OXNARD CA
2006-03-24 641-909 T-MOBILE USA, INC. 6529 LAKE MILLS IA
2006-03-21 773-574 T-MOBILE USA, INC. 6529 CHICGOZN10 IL
2006-03-17 909-567 T-MOBILE USA, INC. 6529 S BERNDINO CA
2006-03-16 909-763 T-MOBILE USA, INC. 6529 S BERNDINO CA
2006-03-15 773-225 T-MOBILE USA, INC. 6529 CHICGOZN03 IL
2006-03-14 805-827 T-MOBILE USA, INC. 6529 OXNARD CA
2006-03-13 714-858 T-MOBILE USA, INC. 6529 ANAHEIM CA
2006-03-07 951-385 T-MOBILE USA, INC. 6529 PERRIS CA
2006-03-01 210-739 T-MOBILE USA, INC. 6529 SANANTONIO TX
2006-03-01 330-942 T-MOBILE USA, INC. 6529 YOUNGSTOWN OH
2006-02-28 602-314 T-MOBILE USA, INC. 6529 PHOENIX AZ
2006-02-22 323-861 T-MOBILE USA, INC. 6529 LSAN DA 09 CA

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.