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
2020-09-16 682-336 0–9 XXXall 10 · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ARLINGTON TX
2020-09-11 682-335 0–9 XXXwhole prefix which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7148 GRAPEVINE TX
2020-09-03 682-348 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H FORT WORTH TX
2020-09-03 682-758 0–9 XXXall 10 · 2 holders which blocks → FRACTEL, LLC 965H ARLINGTON TX
2020-08-12 682-332 0–9 XXXall 10 · 6 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 WEATHERFD TX
2020-07-30 682-329 0–9 XXXwhole prefix which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GLENDALE TX
2020-07-09 682-946 3XXX4XXX5XXX6XXX7XXX9XXX · 4 holders which blocks → FRACTEL, LLC 965H RHOME TX
2020-07-02 682-529 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H GRANBURY TX
2020-07-02 682-732 0–9 XXXall 10 · 3 holders which blocks → FRACTEL, LLC 965H ALVARADO TX
2020-07-02 682-766 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → FRACTEL, LLC 965H RENO TX
2020-06-29 682-842 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → FRACTEL, LLC 965H SPRINGTOWN TX
2020-06-23 682-345 0–9 XXXall 10 · 3 holders which blocks → FRACTEL, LLC 965H GRAPEVINE TX
2020-06-23 682-356 0–9 XXXall 10 · 3 holders which blocks → FRACTEL, LLC 965H CLEBURNE TX
2020-06-23 682-600 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H ARLINGTON TX
2020-05-20 682-900 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H FORT WORTH TX
2020-04-29 682-382 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - TX 903C FORT WORTH TX
2020-04-21 682-328 0–9 XXXall 10 · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GLENDALE TX
2020-04-09 682-327 0–9 XXXall 10 · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WEATHERFD TX
2020-02-11 682-326 0–9 XXXall 10 · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ARLINGTON TX
2020-01-31 682-324 0–9 XXXall 10 · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - TX 6114 FORT WORTH TX
2020-01-14 682-688 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - TX 903C GRAPEVINE TX
2019-11-26 682-322 0–9 XXXall 10 · 4 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 MANSFIELD TX
2019-11-05 682-440 not yet reported which blocks → RIGHT CALL LLC 365J FORT WORTH TX
2019-11-05 682-782 not yet reported which blocks → RIGHT CALL LLC 365J ARLINGTON TX
2019-10-11 682-306 0–9 XXXall 10 · 2 holders which blocks → T-MOBILE USA, INC. 6529 ARLINGTON TX
2019-10-08 682-299 0–9 XXXall 10 · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GLENDALE TX
2019-10-07 682-298 0–9 XXXall 10 · 2 holders which blocks → T-MOBILE USA, INC. 6529 ARLINGTON TX
2019-09-20 682-297 0–9 XXXall 10 · 3 holders which blocks → T-MOBILE USA, INC. 6529 ARLINGTON TX
2019-09-20 682-354 0–9 XXXall 10 · 2 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7148 FORT WORTH TX
2019-09-18 682-293 not yet reported which blocks → SHELCOMM 0051 ARLINGTON TX
2019-09-18 682-296 not yet reported which blocks → SHELCOMM 0051 GRANDVIEW TX
2019-07-16 682-291 0–9 XXXall 10 · 5 holders which blocks → BANDWIDTH.COM CLEC, LLC - TX 004F FORT WORTH TX
2019-07-02 682-290 0–9 XXXall 10 · 4 holders which blocks → T-MOBILE USA, INC. 6529 WEATHERFD TX
2019-05-03 682-295 0–9 XXXwhole prefix which blocks → LEVEL 3 COMMUNICATIONS, LLC - TX 6114 FORT WORTH TX
2019-02-19 682-289 0–9 XXXall 10 · 4 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 EULESS TX
2019-02-06 682-287 0–9 XXXwhole prefix which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GLENDALE TX
2019-01-25 682-285 0–9 XXXall 10 · 5 holders which blocks → VOIP INNOVATIONS, LLC 597F FORT WORTH TX
2019-01-25 682-516 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 5 holders which blocks → FRACTEL, LLC 965H AZLE TX
2019-01-25 682-816 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H ARLINGTON TX
2019-01-25 682-916 0–9 XXXall 10 · 6 holders which blocks → FRACTEL, LLC 965H CLEBURNE TX
2019-01-24 682-284 0–9 XXXall 10 · 5 holders which blocks → VOIP INNOVATIONS, LLC 597F ARLINGTON TX
2019-01-16 682-283 0–9 XXXwhole prefix which blocks → T-MOBILE USA, INC. 6529 ARLINGTON TX
2019-01-14 682-282 0–9 XXXall 10 · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - TX 004F ARLINGTON TX
2018-12-05 682-280 not yet reported which blocks → SHELCOMM 0051 FORT WORTH TX
2018-10-29 682-279 0–9 XXXall 10 · 5 holders which blocks → PEERLESS NETWORK OF TEXAS, LLC - TX 177F GRANBURY TX
2018-10-19 682-278 0–9 XXXwhole prefix which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 EULESS TX
2018-10-11 682-275 0–9 XXXwhole prefix which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 EULESS TX
2018-10-11 682-288 0–9 XXXall 10 · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 WEATHERFD TX
2018-10-03 682-274 0–9 XXXall 10 · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 ARLINGTON TX
2018-09-13 682-610 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - TX 903C FORT WORTH 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.