NumberResearch Membership · Data 09/20/2026

Recent prefix assignments

2 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/20/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

The Code holder is who opened each NPA-NXX prefix — not necessarily who holds the numbers. A prefix is 10,000 numbers, but under pooling its ten 1,000-number blocks are handed out individually, often to different carriers; the code holder may hold only one block, or none. The Thousands-blocks column shows how the ten blocks are really split — click which blocks → to see who holds each 1,000-number block and its last-4-digit range. Assignments are initial assignments; the current serving carrier may differ due to portability.

Most active assignees, last 30 days — NPA 682
T-MOBILE USA, INC. 1
ONVOY, LLC - TX 1
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-NXXThousands-blocks taken (last-4 opening)Code holderOCNRate centerState
2022-02-14 682-384 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - TX 903C CLEBURNE TX
2022-02-10 682-378 0–9 XXXall 10 · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CLEBURNE TX
2022-01-19 682-373 0–9 XXXwhole prefix which blocks → T-MOBILE USA, INC. 6529 ARLINGTON TX
2022-01-19 682-374 0–9 XXXwhole prefix which blocks → T-MOBILE USA, INC. 6529 ARLINGTON TX
2022-01-19 682-376 0–9 XXXwhole prefix which blocks → T-MOBILE USA, INC. 6529 ARLINGTON TX
2022-01-19 682-377 0–9 XXXwhole prefix which blocks → T-MOBILE USA, INC. 6529 ARLINGTON TX
2022-01-14 682-372 0–9 XXXwhole prefix which blocks → T-MOBILE USA, INC. 6529 ARLINGTON TX
2022-01-14 682-568 0XXX1XXX2XXX3XXX6XXX8XXX9XXX · 4 holders which blocks → TON80 COMMUNICATIONS, LLC 516J CRESSON TX
2022-01-14 682-746 0–9 XXXall 10 · 4 holders which blocks → TON80 COMMUNICATIONS, LLC 516J EULESS TX
2022-01-14 682-846 0XXX1XXX2XXX3XXX6XXX8XXX · 3 holders which blocks → TON80 COMMUNICATIONS, LLC 516J GODLEY TX
2022-01-11 682-446 0–9 XXXall 10 · 2 holders which blocks → TON80 COMMUNICATIONS, LLC 516J GLENDALE TX
2022-01-10 682-371 0–9 XXXall 10 · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GLENDALE TX
2022-01-07 682-538 0XXX1XXX4XXX5XXX7XXX8XXX · 3 holders which blocks → TON80 COMMUNICATIONS, LLC 516J KELLER TX
2022-01-06 682-532 0–9 XXXall 10 · 5 holders which blocks → TON80 COMMUNICATIONS, LLC 516J WEATHERFD TX
2021-12-30 682-370 0XXX1XXX2XXX8XXX9XXX · 3 holders which blocks → BOOST SUBSCRIBERCO L.L.C. 490J RENO TX
2021-12-22 682-369 0–9 XXXall 10 · 7 holders which blocks → BOOST SUBSCRIBERCO L.L.C. 490J ALVARADO TX
2021-12-20 682-368 0–9 XXXall 10 · 4 holders which blocks → T-MOBILE USA, INC. 6529 WEATHERFD TX
2021-12-14 682-364 0–9 XXXall 10 · 4 holders which blocks → T-MOBILE USA, INC. 6529 GRANBURY TX
2021-12-14 682-366 0–9 XXXall 10 · 2 holders which blocks → T-MOBILE USA, INC. 6529 CLEBURNE TX
2021-11-02 682-363 0XXX1XXX3XXX8XXX · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - TX 004F ROANOKE TX
2021-10-12 682-362 0–9 XXXall 10 · 2 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7148 GLENDALE TX
2021-09-20 682-359 0–9 XXXwhole prefix which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GLENDALE TX
2021-08-17 682-358 0–9 XXXwhole prefix which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ARLINGTON TX
2021-08-10 682-357 0–9 XXXall 10 · 5 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7148 KELLER TX
2021-08-02 682-445 0–9 XXXall 10 · 2 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7148 ARLINGTON TX
2021-07-20 682-355 0–9 XXXwhole prefix which blocks → T-MOBILE USA, INC. 6529 ARLINGTON TX
2021-06-30 682-353 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - TX 903C EULESS TX
2021-05-07 682-788 0–9 XXXall 10 · 2 holders which blocks → FRACTEL, LLC 965H GLENDALE TX
2021-05-07 682-789 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H WEATHERFD TX
2021-05-06 682-699 0–9 XXXall 10 · 2 holders which blocks → FRACTEL, LLC 965H ARLINGTON TX
2021-05-06 682-799 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H ACTON TX
2021-05-05 682-349 0–9 XXXall 10 · 2 holders which blocks → TELNYX LLC 073H GRAPEVINE TX
2021-04-15 682-837 0–9 XXXall 10 · 4 holders which blocks → TON80 COMMUNICATIONS, LLC 516J GRAPEVINE TX
2021-03-09 682-346 0–9 XXXwhole prefix which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GLENDALE TX
2021-03-03 682-681 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - TX 903C ARLINGTON TX
2021-03-03 682-882 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - TX 903C FORT WORTH TX
2021-02-25 682-786 0–9 XXXall 10 · 6 holders which blocks → FRACTEL, LLC 965H FORT WORTH TX
2021-02-24 682-563 0–9 XXXall 10 · 4 holders which blocks → TON80 COMMUNICATIONS, LLC 516J ARLINGTON TX
2021-02-19 682-344 0–9 XXXall 10 · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ARLINGTON TX
2021-02-18 682-343 0–9 XXXall 10 · 5 holders which blocks → BANDWIDTH.COM CLEC, LLC - TX 004F NRICHLDHLS TX
2021-01-08 682-342 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - TX 903C GRANBURY TX
2020-12-01 682-877 0–9 XXXall 10 · 5 holders which blocks → FRACTEL, LLC 965H MANSFIELD TX
2020-11-30 682-340 0–9 XXXwhole prefix which blocks → T-MOBILE USA, INC. 6529 ARLINGTON TX
2020-11-30 682-899 0–9 XXXall 10 · 6 holders which blocks → FRACTEL, LLC 965H ALVARADO TX
2020-11-30 682-966 0–9 XXXall 10 · 8 holders which blocks → FRACTEL, LLC 965H CLEBURNE TX
2020-11-30 682-977 0–9 XXXall 10 · 5 holders which blocks → FRACTEL, LLC 965H AZLE TX
2020-11-27 682-339 0–9 XXXall 10 · 4 holders which blocks → NUSO, LLC 478J KELLER TX
2020-10-19 682-338 0–9 XXXall 10 · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 ARLINGTON TX
2020-10-14 682-428 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - TX 903C FORT WORTH TX
2020-10-08 682-337 0–9 XXXall 10 · 2 holders which blocks → BANDWIDTH.COM CLEC, LLC - TX 004F NRICHLDHLS TX

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.