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
2001-05-18 626-890 T-MOBILE USA, INC. 6529 COVINA CA
2001-05-18 714-493 T-MOBILE USA, INC. 6529 ANAHEIM CA
2001-05-18 818-795 T-MOBILE USA, INC. 6529 BRBN BRBN CA
2001-05-18 818-974 T-MOBILE USA, INC. 6529 VAN NUYS CA
2001-05-18 949-456 T-MOBILE USA, INC. 6529 CAPITRNVLY CA
2001-05-17 408-426 T-MOBILE USA, INC. 6529 CAMPBELL CA
2001-05-17 408-461 T-MOBILE USA, INC. 6529 SAN MARTIN CA
2001-05-17 510-557 T-MOBILE USA, INC. 6529 FRNK MAIN CA
2001-05-16 702-296 T-MOBILE USA, INC. 6529 LAS VEGAS NV
2001-05-15 520-313 T-MOBILE USA, INC. 6529 NOGALES AZ
2001-05-15 520-619 T-MOBILE USA, INC. 6529 NOGALES AZ
2001-05-15 641-233 T-MOBILE USA, INC. 6529 FAIRFIELD IA
2001-05-14 505-306 T-MOBILE USA, INC. 6529 ALBUQURQUE NM
2001-05-14 505-409 T-MOBILE USA, INC. 6529 GALLUP NM
2001-05-14 562-572 T-MOBILE USA, INC. 6529 LONG BEACH CA
2001-05-14 720-333 T-MOBILE USA, INC. 6529 DENVER CO
2001-05-14 720-334 T-MOBILE USA, INC. 6529 DENVER CO
2001-05-14 720-335 T-MOBILE USA, INC. 6529 DENVER CO
2001-05-11 435-239 T-MOBILE USA, INC. 6529 BRIGHAM CY UT
2001-05-10 636-236 T-MOBILE USA, INC. 6529 CHESTERFLD MO
2001-05-10 636-426 T-MOBILE USA, INC. 6529 PORTAGSIUX MO
2001-05-10 847-912 T-MOBILE USA, INC. 6529 ZION IL
2001-05-09 775-232 T-MOBILE USA, INC. 6529 RENO NV
2001-05-08 870-495 T-MOBILE USA, INC. 6529 NEWPORT AR
2001-05-08 903-215 T-MOBILE USA, INC. 6529 LONGVIEW TX
2001-05-07 636-253 T-MOBILE USA, INC. 6529 HIGH RIDGE MO
2001-05-07 636-259 T-MOBILE USA, INC. 6529 GRAYSUMMIT MO
2001-05-07 636-633 T-MOBILE USA, INC. 6529 IMPERIAL MO
2001-05-04 219-448 T-MOBILE USA, INC. 6529 WESTVILLE IN
2001-05-04 801-330 T-MOBILE USA, INC. 6529 SALT LAKE UT
2001-05-03 310-227 T-MOBILE USA, INC. 6529 EL SEGUNDO CA
2001-05-03 618-698 T-MOBILE USA, INC. 6529 BELLEVILLE IL
2001-05-03 618-719 T-MOBILE USA, INC. 6529 COLUMBIA IL
2001-05-03 951-905 T-MOBILE USA, INC. 6529 RIVERSIDE CA
2001-05-02 214-514 T-MOBILE USA, INC. 6529 GRANDPRARI TX
2001-04-30 513-849 T-MOBILE USA, INC. 6529 MIDDLETOWN OH
2001-04-27 262-344 T-MOBILE USA, INC. 6529 KENOSHA WI
2001-04-27 815-814 T-MOBILE USA, INC. 6529 WOODSTOCK IL
2001-04-27 815-867 T-MOBILE USA, INC. 6529 PONTIAC IL
2001-04-25 408-390 T-MOBILE USA, INC. 6529 SNJS WEST CA
2001-04-25 408-396 T-MOBILE USA, INC. 6529 SNJS WEST CA
2001-04-25 408-569 T-MOBILE USA, INC. 6529 SNJS WEST CA
2001-04-25 408-829 T-MOBILE USA, INC. 6529 SNJS WEST CA
2001-04-25 562-291 T-MOBILE USA, INC. 6529 DOWNEY CA
2001-04-25 562-338 T-MOBILE USA, INC. 6529 ALAMITOS CA
2001-04-25 562-656 T-MOBILE USA, INC. 6529 PICORIVERA CA
2001-04-25 714-657 T-MOBILE USA, INC. 6529 WESTMINSTR CA
2001-04-24 512-587 T-MOBILE USA, INC. 6529 AUSTIN TX
2001-04-24 512-619 T-MOBILE USA, INC. 6529 AUSTIN TX
2001-04-24 719-229 T-MOBILE USA, INC. 6529 COLORDOSPG CO

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.