NumberResearch Membership · Data 09/18/2026

Recent prefix assignments

11 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/18/2026

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
U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 11
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
805-850 U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J VNTRA EAST CA
805-915 U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J SIMIVALLEY CA
817-289 U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J FORT WORTH TX
817-458 U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J WEATHERFD TX
817-519 U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J NRICHLDHLS TX
817-634 U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J KENNEDALE TX
817-728 U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J MANSFIELD TX
817-855 U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J ARLINGTON TX
818-201 U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J RESEDA CA
818-239 U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J BRBN BRBN CA
818-264 U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J CANOGAPARK CA
818-280 U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J NORTHRIDGE CA
818-285 U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J VAN NUYS CA
818-330 U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J LACRSCENTA CA
818-333 U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J BRBN BRBN CA
818-408 U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J SNFN SNFN CA
818-432 U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J NO HOLLYWD CA
818-444 U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J CANOGAPARK CA
818-465 U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J VAN NUYS CA
818-466 U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J CANOGAPARK CA
818-534 U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J NORTHRIDGE CA
818-630 U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J GLENDALE CA
818-657 U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J CANOGAPARK CA
818-671 U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J NORTHRIDGE CA
818-721 U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J NORTHRIDGE CA
818-746 U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J CANOGAPARK CA
818-844 U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J GLENDALE CA
818-861 U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J BRBN BRBN CA
818-933 U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J VAN NUYS CA
818-942 U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J NO HOLLYWD CA
831-222 U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J FELTON CA
831-515 U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J SANTA CRUZ CA
831-574 U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J CARMEL CA
831-600 U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J SANTA CRUZ CA
832-224 U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J APOLLO TX
832-253 U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J BAMMEL TX
832-321 U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J BARKER TX
832-376 U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J CHANNELVW TX
832-429 U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J DEER PARK TX
832-481 U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J FRIENDSWD TX
832-529 U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J LANGHAMCRK TX
832-568 U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J LA PORTE TX
832-637 U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J MANVEL TX
832-678 U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J SATSUMA TX
832-734 U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J SHELDON TX
832-753 U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J SEABROOK TX
832-827 U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J WESTFIELD TX
832-987 U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J STAFFORD TX
858-200 U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J LA JOLLA CA
858-216 U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J RNCHOPNQTS CA

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/18/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.