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
360-809 T-MOBILE USA, INC. 6529 PT ANGELES WA
360-815 T-MOBILE USA, INC. 6529 WHATCOMCTY WA
360-820 T-MOBILE USA, INC. 6529 WHATCOMCTY WA
360-821 T-MOBILE USA, INC. 6529 PTTOWNSEND WA
360-840 T-MOBILE USA, INC. 6529 MT VERNON WA
360-909 T-MOBILE USA, INC. 6529 VANCOUVER WA
360-910 T-MOBILE USA, INC. 6529 VANCOUVER WA
360-920 T-MOBILE USA, INC. 6529 WHATCOMCTY WA
360-936 T-MOBILE USA, INC. 6529 VANCOUVER WA
360-970 T-MOBILE USA, INC. 6529 OLYMPIA WA
360-982 T-MOBILE USA, INC. 6529 MT VERNON WA
360-990 T-MOBILE USA, INC. 6529 BREMERTON WA
360-991 T-MOBILE USA, INC. 6529 VANCOUVER WA
405-204 T-MOBILE USA, INC. 6529 OKLA CITY OK
405-209 T-MOBILE USA, INC. 6529 OKLA CITY OK
405-210 T-MOBILE USA, INC. 6529 OKLA CITY OK
405-212 T-MOBILE USA, INC. 6529 OKLA CITY OK
405-268 T-MOBILE USA, INC. 6529 PAULS VLY OK
405-269 T-MOBILE USA, INC. 6529 STILLWATER OK
405-274 T-MOBILE USA, INC. 6529 CHICKASHA OK
405-314 T-MOBILE USA, INC. 6529 OKLA CITY OK
405-326 T-MOBILE USA, INC. 6529 OKLA CITY OK
405-338 T-MOBILE USA, INC. 6529 STILLWATER OK
405-370 T-MOBILE USA, INC. 6529 OKLA CITY OK
405-408 T-MOBILE USA, INC. 6529 OKLA CITY OK
405-409 T-MOBILE USA, INC. 6529 OKLA CITY OK
405-410 T-MOBILE USA, INC. 6529 OKLA CITY OK
405-412 T-MOBILE USA, INC. 6529 OKLA CITY OK
405-413 T-MOBILE USA, INC. 6529 OKLA CITY OK
405-414 T-MOBILE USA, INC. 6529 OKLA CITY OK
405-417 T-MOBILE USA, INC. 6529 OKLA CITY OK
405-472 T-MOBILE USA, INC. 6529 OKLA CITY OK
405-473 T-MOBILE USA, INC. 6529 OKLA CITY OK
405-474 T-MOBILE USA, INC. 6529 OKLA CITY OK
405-476 T-MOBILE USA, INC. 6529 OKLA CITY OK
405-503 T-MOBILE USA, INC. 6529 OKLA CITY OK
405-514 T-MOBILE USA, INC. 6529 OKLA CITY OK
405-520 T-MOBILE USA, INC. 6529 OKLA CITY OK
405-706 T-MOBILE USA, INC. 6529 OKLA CITY OK
405-812 T-MOBILE USA, INC. 6529 OKLA CITY OK
405-816 T-MOBILE USA, INC. 6529 OKLA CITY OK
405-819 T-MOBILE USA, INC. 6529 OKLA CITY OK
405-821 T-MOBILE USA, INC. 6529 OKLA CITY OK
405-822 T-MOBILE USA, INC. 6529 OKLA CITY OK
405-824 T-MOBILE USA, INC. 6529 OKLA CITY OK
405-838 T-MOBILE USA, INC. 6529 OKLA CITY OK
405-921 T-MOBILE USA, INC. 6529 OKLA CITY OK
405-922 T-MOBILE USA, INC. 6529 OKLA CITY OK
405-923 T-MOBILE USA, INC. 6529 OKLA CITY OK
405-924 T-MOBILE USA, INC. 6529 OKLA CITY OK

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.