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
Clear Download CSV ↓
Recent NPA-NXX prefix assignments
AssignedNPA-NXXThousands-blocks taken (last-4 opening)Code holderOCNRate centerState
2007-02-19 469-288 0–9 XXXall 10 · 2 holders which blocks → T-MOBILE USA, INC. 6529 MCKINNEY TX
2007-01-22 469-258 0–9 XXXwhole prefix which blocks → T-MOBILE USA, INC. 6529 GRANDPRARI TX
2006-12-27 469-237 0–9 XXXall 10 · 3 holders which blocks → T-MOBILE USA, INC. 6529 FRISCO TX
2006-11-27 469-217 0XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → ONVOY, LLC - TX 903C VENUS TX
2006-05-22 469-286 0–9 XXXall 10 · 5 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRANDPRARI TX
2006-04-03 469-230 0–9 XXXwhole prefix which blocks → T-MOBILE USA, INC. 6529 GRANDPRARI TX
2006-04-03 469-684 0–9 XXXall 10 · 2 holders which blocks → T-MOBILE USA, INC. 6529 GRANDPRARI TX
2006-04-03 469-734 0–9 XXXall 10 · 2 holders which blocks → T-MOBILE USA, INC. 6529 MCKINNEY TX
2006-03-09 469-236 0–9 XXXwhole prefix which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRANDPRARI TX
2006-03-09 469-834 0–9 XXXwhole prefix which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRANDPRARI TX
2005-09-07 469-735 0–9 XXXall 10 · 2 holders which blocks → LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 7516 IRVING TX
2005-08-24 469-672 0–9 XXXall 10 · 7 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - TX 6114 MIDLOTHIAN TX
2005-04-19 469-554 0–9 XXXall 10 · 4 holders which blocks → FOREMOST TELECOMMUNICATIONS CORPORATION - TX 319D DALLAS TX
2005-03-23 469-277 0–9 XXXall 10 · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - TX 6114 PLANO TX
2005-02-09 469-328 0–9 XXXwhole prefix which blocks → T-MOBILE USA, INC. 6529 GRANDPRARI TX
2004-11-15 469-544 0–9 XXXwhole prefix which blocks → T-MOBILE USA, INC. 6529 GRANDPRARI TX
2004-09-21 469-744 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 GRANDPRARI TX
2004-09-10 469-226 0–9 XXXwhole prefix which blocks → T-MOBILE USA, INC. 6529 GRANDPRARI TX
2004-09-09 469-212 0–9 XXXall 10 · 3 holders which blocks → T-MOBILE USA, INC. 6529 GRANDPRARI TX
2004-08-02 469-826 0–9 XXXwhole prefix which blocks → T-MOBILE USA, INC. 6529 GRANDPRARI TX
2004-04-01 469-362 0–9 XXXwhole prefix which blocks → SOUTHWESTERN BELL 9533 FRISCO TX
2003-05-20 469-488 0–9 XXXwhole prefix which blocks → SOUTHWESTERN BELL TELEPHONE COMPANY - TX 7726 PLANO TX
2002-08-13 469-877 not yet reported which blocks → T-MOBILE USA, INC. 6529 GRANDPRARI TX
2002-08-13 469-878 not yet reported which blocks → T-MOBILE USA, INC. 6529 GRANDPRARI TX
2002-08-13 469-879 not yet reported which blocks → T-MOBILE USA, INC. 6529 GRANDPRARI TX
2002-05-15 469-552 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → SOUTHWESTERN BELL 9533 RED OAK TX
2002-04-11 469-665 0XXX8XXX9XXX · 2 holders which blocks → SOUTHWESTERN BELL 9533 DALLAS TX
2002-04-09 469-229 1XXX2XXX3XXX7XXX · 2 holders which blocks → SOUTHWESTERN BELL TELEPHONE COMPANY - TX 7726 PLANO TX
2002-01-15 469-525 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7148 MCKINNEY TX
2002-01-15 469-526 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7148 CEDAR HILL TX
2002-01-15 469-528 0XXX1XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7148 LEWISVILLE TX
2001-09-12 469-443 2XXX3XXX4XXX5XXX6XXX8XXX · 4 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7148 PLANO TX
2001-08-20 469-337 0XXX which blocks → METROPCS, INC. 5562 DE SOTO TX
2001-08-20 469-338 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → T-MOBILE USA, INC. 6529 ROCKWALL TX
2001-08-20 469-474 0XXX2XXX3XXX4XXX5XXX7XXX8XXX · 4 holders which blocks → METROPCS, INC. 5562 TERRELL TX
2001-08-20 469-667 0XXX2XXX3XXX4XXX which blocks → T-MOBILE USA, INC. 6529 MCKINNEY TX
2001-08-01 469-387 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRANDPRARI TX
2001-07-11 469-214 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 2154 PALMER TX
2001-06-06 469-201 not yet reported which blocks → SOUTHWESTERN BELL 9533 DALLAS TX
2001-05-02 469-955 0–9 XXXwhole prefix which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 IRVING TX
2001-04-25 469-335 2XXX3XXX4XXX6XXX7XXX which blocks → SOUTHWESTERN BELL 9533 DALLAS TX
2001-04-25 469-364 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → SOUTHWESTERN BELL 9533 DALLAS TX
2001-03-15 469-447 0–9 XXXall 10 · 7 holders which blocks → U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J CRANDALL TX
2001-03-15 469-652 0–9 XXXall 10 · 4 holders which blocks → METROPCS, INC. 5562 TERRELL TX
2001-03-01 469-698 1XXX3XXX4XXX5XXX6XXX · 5 holders which blocks → SOUTHWESTERN BELL 9533 ROCKWALL TX
2001-01-25 469-450 not yet reported which blocks → T-MOBILE USA, INC. 6529 MCKINNEY TX
— 469-200 0–9 XXXall 10 · 7 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - TX 6114 FRISCO TX
— 469-202 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → AT&T ENTERPRISES, LLC 516C CELINA TX
— 469-211 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX TX
— 469-218 not yet reported which blocks → ONVOY, LLC - TX 903C RED OAK 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.