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
2014-03-03 314-896 T-MOBILE USA, INC. 6529 ST LOUIS MO
2014-03-03 405-430 T-MOBILE USA, INC. 6529 OKLA CITY OK
2014-03-03 859-279 T-MOBILE USA, INC. 6529 COVINGTON KY
2014-03-03 937-815 T-MOBILE USA, INC. 6529 DAYTON OH
2014-02-28 314-764 T-MOBILE USA, INC. 6529 LADUE MO
2014-02-24 505-289 T-MOBILE USA, INC. 6529 ALBUQURQUE NM
2014-02-21 619-882 T-MOBILE USA, INC. 6529 CHULAVISTA CA
2014-02-20 719-722 T-MOBILE USA, INC. 6529 COLORDOSPG CO
2014-02-18 216-804 T-MOBILE USA, INC. 6529 CLEVELAND OH
2014-02-18 216-860 T-MOBILE USA, INC. 6529 CLEVELAND OH
2014-02-12 719-281 T-MOBILE USA, INC. 6529 PUEBLO CO
2014-02-07 214-971 T-MOBILE USA, INC. 6529 ENNIS TX
2014-02-04 440-732 T-MOBILE USA, INC. 6529 STRONGSVL OH
2014-02-03 440-351 T-MOBILE USA, INC. 6529 BEREA OH
2014-01-31 818-860 T-MOBILE USA, INC. 6529 BRBN BRBN CA
2014-01-30 501-703 T-MOBILE USA, INC. 6529 LONOKE AR
2014-01-28 214-301 T-MOBILE USA, INC. 6529 WAXAHACHIE TX
2014-01-28 224-774 T-MOBILE USA, INC. 6529 ZION IL
2014-01-27 323-621 T-MOBILE USA, INC. 6529 MONTEBELLO CA
2014-01-27 360-890 T-MOBILE USA, INC. 6529 OLYMPIA WA
2014-01-24 669-226 T-MOBILE USA, INC. 6529 SNJS NORTH CA
2014-01-24 714-804 T-MOBILE USA, INC. 6529 BREA CA
2014-01-24 808-724 T-MOBILE USA, INC. 6529 HONOLULU HI
2014-01-24 818-796 T-MOBILE USA, INC. 6529 VAN NUYS CA
2014-01-24 818-927 T-MOBILE USA, INC. 6529 NO HOLLYWD CA
2014-01-10 971-407 T-MOBILE USA, INC. 6529 PORTLAND OR
2014-01-09 253-391 T-MOBILE USA, INC. 6529 AUBURN WA
2014-01-08 971-706 T-MOBILE USA, INC. 6529 MCMINNVL OR
2013-12-23 580-447 T-MOBILE USA, INC. 6529 ADA OK
2013-12-19 253-213 T-MOBILE USA, INC. 6529 TACOMA WA
2013-12-19 916-330 T-MOBILE USA, INC. 6529 SCRM MAIN CA
2013-12-17 469-612 T-MOBILE USA, INC. 6529 MIDLOTHIAN TX
2013-12-16 505-267 T-MOBILE USA, INC. 6529 ALBUQURQUE NM
2013-12-13 480-434 T-MOBILE USA, INC. 6529 PHOENIX AZ
2013-12-09 424-341 T-MOBILE USA, INC. 6529 CULVERCITY CA
2013-12-09 510-736 T-MOBILE USA, INC. 6529 HAYWARD CA
2013-12-09 661-447 T-MOBILE USA, INC. 6529 BKFD MAIN CA
2013-12-03 708-973 T-MOBILE USA, INC. 6529 CHICAGOHTS IL
2013-12-03 708-996 T-MOBILE USA, INC. 6529 CHICAGOHTS IL
2013-11-21 702-945 T-MOBILE USA, INC. 6529 LAS VEGAS NV
2013-11-15 573-742 T-MOBILE USA, INC. 6529 BOWLNGGREN MO
2013-11-11 216-703 T-MOBILE USA, INC. 6529 CLEVELAND OH
2013-11-11 669-224 T-MOBILE USA, INC. 6529 SUNNYVALE CA
2013-11-11 915-701 T-MOBILE USA, INC. 6529 EL PASO TX
2013-11-08 314-745 T-MOBILE USA, INC. 6529 ST LOUIS MO
2013-10-31 206-939 T-MOBILE USA, INC. 6529 SEATTLE WA
2013-10-25 619-831 T-MOBILE USA, INC. 6529 SNDG SNDG CA
2013-10-25 720-451 T-MOBILE USA, INC. 6529 DENVER CO
2013-10-24 331-703 T-MOBILE USA, INC. 6529 W CHICAGO IL
2013-10-24 708-998 T-MOBILE USA, INC. 6529 LA GRANGE 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.