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
2009-04-30 760-498 T-MOBILE USA, INC. 6529 BRAWLEY CA
2009-04-16 325-333 T-MOBILE USA, INC. 6529 ABILENE TX
2009-03-31 712-904 T-MOBILE USA, INC. 6529 AKRON IA
2009-03-23 234-521 T-MOBILE USA, INC. 6529 CANTON OH
2009-03-20 720-421 T-MOBILE USA, INC. 6529 DENVER CO
2009-02-26 773-302 T-MOBILE USA, INC. 6529 CHICGOZN02 IL
2009-02-24 708-965 T-MOBILE USA, INC. 6529 CHICAGOHTS IL
2009-02-17 541-590 T-MOBILE USA, INC. 6529 FLORENCE OR
2009-02-14 909-272 T-MOBILE USA, INC. 6529 ARROWHEAD CA
2009-02-13 773-367 T-MOBILE USA, INC. 6529 CHICGOZN03 IL
2009-02-13 773-408 T-MOBILE USA, INC. 6529 CHICGOZN06 IL
2009-02-11 708-942 T-MOBILE USA, INC. 6529 ORLAND IL
2009-01-13 720-401 T-MOBILE USA, INC. 6529 DENVER CO
2008-12-15 515-657 T-MOBILE USA, INC. 6529 DES MOINES IA
2008-11-26 618-434 T-MOBILE USA, INC. 6529 CARBONDALE IL
2008-11-18 331-826 T-MOBILE USA, INC. 6529 ELMHURST IL
2008-11-12 325-262 T-MOBILE USA, INC. 6529 SAN ANGELO TX
2008-11-07 408-409 T-MOBILE USA, INC. 6529 CAMPBELL CA
2008-11-05 773-690 T-MOBILE USA, INC. 6529 CHICGOZN07 IL
2008-10-29 469-263 T-MOBILE USA, INC. 6529 GRANDPRARI TX
2008-10-28 773-997 T-MOBILE USA, INC. 6529 CHICGOZN02 IL
2008-10-27 702-628 T-MOBILE USA, INC. 6529 LAS VEGAS NV
2008-10-22 331-472 T-MOBILE USA, INC. 6529 NAPERVILLE IL
2008-10-06 219-359 T-MOBILE USA, INC. 6529 GARY IN
2008-10-06 224-523 T-MOBILE USA, INC. 6529 ELGIN IL
2008-10-06 708-328 T-MOBILE USA, INC. 6529 LA GRANGE IL
2008-09-29 480-478 T-MOBILE USA, INC. 6529 PHOENIX AZ
2008-09-08 309-428 T-MOBILE USA, INC. 6529 ROCKISLAND IL
2008-09-08 773-809 T-MOBILE USA, INC. 6529 CHICGOZN03 IL
2008-09-04 309-847 T-MOBILE USA, INC. 6529 KEWANEE IL
2008-09-04 773-956 T-MOBILE USA, INC. 6529 CHICGOZN06 IL
2008-08-12 708-374 T-MOBILE USA, INC. 6529 CHICAGOHTS IL
2008-08-04 210-418 T-MOBILE USA, INC. 6529 SANANTONIO TX
2008-08-04 512-758 T-MOBILE USA, INC. 6529 AUSTIN TX
2008-08-04 682-241 T-MOBILE USA, INC. 6529 ARLINGTON TX
2008-07-30 331-262 T-MOBILE USA, INC. 6529 AURORA IL
2008-07-23 479-301 T-MOBILE USA, INC. 6529 FAYETTEVL AR
2008-07-23 623-552 T-MOBILE USA, INC. 6529 PHOENIX AZ
2008-07-23 760-298 T-MOBILE USA, INC. 6529 VISTA CA
2008-07-22 479-274 T-MOBILE USA, INC. 6529 FORT SMITH AR
2008-07-22 720-999 T-MOBILE USA, INC. 6529 DENVER CO
2008-07-21 469-422 T-MOBILE USA, INC. 6529 MCKINNEY TX
2008-07-14 779-245 T-MOBILE USA, INC. 6529 STERLING IL
2008-06-25 408-775 T-MOBILE USA, INC. 6529 SNJS NORTH CA
2008-06-25 469-278 T-MOBILE USA, INC. 6529 GRANDPRARI TX
2008-06-25 682-230 T-MOBILE USA, INC. 6529 ARLINGTON TX
2008-06-11 314-828 T-MOBILE USA, INC. 6529 ST LOUIS MO
2008-05-19 708-928 T-MOBILE USA, INC. 6529 TINLEYPARK IL
2008-05-13 206-458 T-MOBILE USA, INC. 6529 SEATTLE WA
2008-03-19 708-953 T-MOBILE USA, INC. 6529 HARVEY 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.