NumberResearch Membership · Data 09/20/2026

Recent prefix assignments

0 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, all time — NPA 469
T-MOBILE USA, INC. 117
NEW CINGULAR WIRELESS PCS, LLC - IL 86
LEVEL 3 COMMUNICATIONS, LLC - TX 71
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 71
ONVOY, LLC - TX 66
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
2011-09-21 469-206 0–9 XXXall 10 · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - TX 6114 DALLAS TX
2011-09-21 469-208 0–9 XXXall 10 · 3 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - TX 6114 CARROLLTON TX
2011-09-21 469-209 0–9 XXXall 10 · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - TX 6114 PLANO TX
2011-09-16 469-240 0–9 XXXall 10 · 7 holders which blocks → SOUTHWESTERN BELL TELEPHONE COMPANY - TX 7726 LEWISVILLE TX
2011-09-15 469-440 0–9 XXXall 10 · 7 holders which blocks → FOREMOST TELECOMMUNICATIONS CORPORATION - TX 319D PLANO TX
2011-07-28 469-242 0–9 XXXall 10 · 5 holders which blocks → PAETEC ITEL, LLC 829J IRVING TX
2011-07-18 469-275 0–9 XXXall 10 · 5 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 GRANDPRARI TX
2011-07-15 469-268 0–9 XXXall 10 · 2 holders which blocks → T-MOBILE USA, INC. 6529 FRISCO TX
2011-07-01 469-343 0–9 XXXall 10 · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MCKINNEY TX
2011-06-21 469-271 0–9 XXXall 10 · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 GRANDPRARI TX
2011-05-26 469-266 0–9 XXXall 10 · 2 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - TX 6114 FRISCO TX
2011-05-18 469-265 0–9 XXXall 10 · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 GRANDPRARI TX
2011-05-13 469-250 0–9 XXXall 10 · 5 holders which blocks → TWC IP ENABLED SERVICES, LLC 793K DALLAS TX
2011-05-13 469-647 0–9 XXXall 10 · 5 holders which blocks → TWC IP ENABLED SERVICES, LLC 793K IRVING TX
2011-05-10 469-666 0–9 XXXall 10 · 5 holders which blocks → BANDWIDTH.COM CLEC, LLC - TX 004F PLANO TX
2011-04-20 469-800 0–9 XXXwhole prefix which blocks → SOUTHWESTERN BELL 9533 DALLAS TX
2011-03-25 469-243 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 GRANDPRARI TX
2011-03-25 469-394 0–9 XXXwhole prefix which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRANDPRARI TX
2011-03-25 469-534 0–9 XXXall 10 · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MCKINNEY TX
2011-03-22 469-264 0–9 XXXall 10 · 5 holders which blocks → AT&T ENTERPRISES, LLC 516C ROCKWALL TX
2011-01-21 469-600 0–9 XXXwhole prefix which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRANDPRARI TX
2011-01-18 469-500 0–9 XXXwhole prefix which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MCKINNEY TX
2010-12-02 469-300 0–9 XXXall 10 · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - TX 004F BARDWELL TX
2010-11-22 469-257 0–9 XXXall 10 · 2 holders which blocks → AT&T ENTERPRISES, LLC 516C ITALY TX
2010-11-22 469-732 0–9 XXXall 10 · 5 holders which blocks → EVOLVE CELLULAR, INC. 139F WAXAHACHIE TX
2010-09-07 469-444 0–9 XXXall 10 · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - TX 6114 LEWISVILLE TX
2010-08-02 469-333 0–9 XXXall 10 · 5 holders which blocks → BANDWIDTH.COM CLEC, LLC - TX 004F SEAGOVILLE TX
2010-04-29 469-764 0–9 XXXwhole prefix which blocks → SOUTHWESTERN BELL 9533 MCKINNEY TX
2010-02-11 469-999 0–9 XXXall 10 · 3 holders which blocks → EVOLVE CELLULAR, INC. 139F GRANDPRARI TX
2009-10-13 469-777 0–9 XXXall 10 · 6 holders which blocks → EVOLVE CELLULAR, INC. 139F FRISCO TX
2009-03-17 469-888 0–9 XXXall 10 · 5 holders which blocks → TWC IP ENABLED SERVICES, LLC 793K FRISCO TX
2008-12-16 469-248 0–9 XXXall 10 · 5 holders which blocks → FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 0701 DALLAS TX
2008-10-29 469-263 0–9 XXXall 10 · 3 holders which blocks → T-MOBILE USA, INC. 6529 GRANDPRARI TX
2008-09-11 469-219 0–9 XXXall 10 · 5 holders which blocks → SOUTHWESTERN BELL 9533 MCKINNEY TX
2008-09-02 469-297 0–9 XXXall 10 · 4 holders which blocks → TWC IP ENABLED SERVICES, LLC 793K DE SOTO TX
2008-07-21 469-422 0–9 XXXall 10 · 3 holders which blocks → T-MOBILE USA, INC. 6529 MCKINNEY TX
2008-06-25 469-278 0–9 XXXall 10 · 4 holders which blocks → T-MOBILE USA, INC. 6529 GRANDPRARI TX
2008-03-05 469-303 0–9 XXXwhole prefix which blocks → SOUTHWESTERN BELL TELEPHONE COMPANY - TX 7726 PLANO TX
2008-01-14 469-531 0–9 XXXwhole prefix which blocks → T-MOBILE USA, INC. 6529 GRANDPRARI TX
2008-01-14 469-563 0–9 XXXall 10 · 4 holders which blocks → T-MOBILE USA, INC. 6529 GRANDPRARI TX
2007-10-19 469-359 0–9 XXXall 10 · 6 holders which blocks → FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 4344 IRVING TX
2007-09-18 469-386 0–9 XXXwhole prefix which blocks → T-MOBILE USA, INC. 6529 GRANDPRARI TX
2007-07-13 469-432 0–9 XXXwhole prefix which blocks → T-MOBILE USA, INC. 6529 GRANDPRARI TX
2007-05-17 469-298 0–9 XXXall 10 · 6 holders which blocks → PAETEC ITEL, LLC 829J PLANO TX
2007-05-08 469-463 0–9 XXXwhole prefix which blocks → T-MOBILE USA, INC. 6529 GRANDPRARI TX
2007-04-16 469-321 0–9 XXXwhole prefix which blocks → T-MOBILE USA, INC. 6529 GRANDPRARI TX
2007-04-05 469-279 0–9 XXXall 10 · 2 holders which blocks → T-MOBILE USA, INC. 6529 GRANDPRARI TX
2007-02-22 469-285 0–9 XXXall 10 · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WAXAHACHIE TX
2007-02-22 469-383 0–9 XXXall 10 · 6 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WAXAHACHIE TX
2007-02-19 469-274 0–9 XXXwhole prefix which blocks → T-MOBILE USA, INC. 6529 GRANDPRARI 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.