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
— 469-220 0–9 XXXwhole prefix which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7148 IRVING TX
— 469-221 9XXX which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7148 DALLAS TX
— 469-222 none assigned yet which blocks → T-MOBILE USA, INC. 6529 GRANDPRARI TX
— 469-223 none assigned yet which blocks → T-MOBILE USA, INC. 6529 GRANDPRARI TX
— 469-224 0XXX1XXX3XXX5XXX6XXX7XXX · 3 holders which blocks → ONVOY, LLC - TX 903C DLFTWTARPT TX
— 469-225 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - TX 903C RED OAK TX
— 469-227 0XXX which blocks → SOUTHWESTERN BELL 9533 DALLAS TX
— 469-228 1XXX2XXX3XXX4XXX6XXX8XXX · 6 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - TX 6114 MAYPEARL TX
— 469-231 not yet reported which blocks → T-MOBILE USA, INC. 6529 GRANDPRARI TX
— 469-232 7XXX8XXX · 2 holders which blocks → SOUTHWESTERN BELL 9533 DALLAS TX
— 469-233 not yet reported which blocks → T-MOBILE USA, INC. 6529 GRANDPRARI TX
— 469-234 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX which blocks → ONVOY, LLC - TX 903C FRISCO TX
— 469-235 not yet reported which blocks → T-MOBILE USA, INC. 6529 GRANDPRARI TX
— 469-238 0XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → ONVOY, LLC - TX 903C FRISCO TX
— 469-239 not yet reported which blocks → MATRIX TELECOM, LLC. S/I/I TNCI - TX 7715 ROYSE CITY TX
— 469-241 not yet reported which blocks → SOUTHWESTERN BELL TELEPHONE COMPANY - TX 7726 PLANO TX
— 469-244 not yet reported which blocks → FOREMOST TELECOMMUNICATIONS CORPORATION - TX 319D DALLAS TX
— 469-245 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX which blocks → GRANDE COMMUNICATIONS NETWORKS, INC. - TX 7670 DE SOTO TX
— 469-246 0XXX1XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → ONVOY, LLC - TX 903C PLANO TX
— 469-247 0XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MCKINNEY TX
— 469-252 6XXX7XXX8XXX · 3 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - TX 6114 FRISCO TX
— 469-253 0–9 XXXall 10 · 6 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - TX 6114 VENUS TX
— 469-254 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX which blocks → METROPCS, INC. 5562 DALLAS TX
— 469-255 not yet reported which blocks → SOUTHWESTERN BELL 9533 DALLAS TX
— 469-256 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - TX 6114 ENNIS TX
— 469-259 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → ONVOY, LLC - TX 903C DALLAS TX
— 469-261 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 GRANDPRARI TX
— 469-272 1XXX6XXX8XXX · 3 holders which blocks → SOUTHWESTERN BELL 9533 CEDAR HILL TX
— 469-273 0XXX1XXX6XXX · 2 holders which blocks → PEOPLES COMMUNICATION, INC. -TX 135H ROCKWALL TX
— 469-280 not yet reported which blocks → MATRIX TELECOM, LLC. S/I/I TNCI - TX 7715 WAXAHACHIE TX
— 469-287 4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7148 FRISCO TX
— 469-293 1XXX2XXX3XXX4XXX8XXX9XXX · 2 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7148 LEWISVILLE TX
— 469-296 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7148 PROSPER TX
— 469-311 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX TX
— 469-312 0–9 XXXall 10 · 7 holders which blocks → ONVOY, LLC - TX 903C LEWISVILLE TX
— 469-322 6XXX7XXX8XXX9XXX · 3 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - TX 6114 LEWISVILLE TX
— 469-323 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRANDPRARI TX
— 469-324 2XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - TX 6114 DALLAS TX
— 469-326 2XXX4XXX6XXX8XXX which blocks → ONVOY, LLC - TX 903C PLANO TX
— 469-327 1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - TX 6114 BRISTOL TX
— 469-330 not yet reported which blocks → SOUTHWESTERN BELL 9533 DALLAS TX
— 469-331 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - TX 903C PLANO TX
— 469-334 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → SOUTHWESTERN BELL 9533 DALLAS TX
— 469-339 not yet reported which blocks → MATRIX TELECOM, LLC. S/I/I TNCI - TX 7715 PRINCETON TX
— 469-341 not yet reported which blocks → PAETEC ITEL, LLC 829J DALLAS TX
— 469-342 1XXX3XXX4XXX5XXX6XXX8XXX · 5 holders which blocks → PAETEC ITEL, LLC 829J ALLEN TX
— 469-348 1XXX3XXX4XXX5XXX6XXX8XXX which blocks → PAETEC ITEL, LLC 829J GRANDPRARI TX
— 469-351 0–9 XXXall 10 · 4 holders which blocks → PEERLESS NETWORK OF TEXAS, LLC - TX 177F IRVING TX
— 469-355 4XXX5XXX which blocks → PEOPLES COMMUNICATION, INC. -TX 135H FORNEY TX
— 469-357 not yet reported which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7148 DALLAS 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.