NumberResearch Membership · Data 09/26/2026

Recent prefix assignments

360 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/26/2026

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
8X8, INC. 43
NEW CINGULAR WIRELESS PCS, LLC - DC 28
ONVOY, LLC - CA 26
NEW CINGULAR WIRELESS PCS, LLC - IL 26
Rogers Communications Canada Inc. (Wireless) 23
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
2021-08-25 240-796 0–9 XXXall 10 · 3 holders which blocks → OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 WSNGTNZN10 MD
2021-08-25 240-797 0–9 XXXall 10 · 3 holders which blocks → OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 ASHTON236 MD
2021-08-25 253-676 0–9 XXXall 10 · 4 holders which blocks → TON80 COMMUNICATIONS, LLC 516J TACOMAWVLY WA
2021-08-25 262-739 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 4 holders which blocks → TON80 COMMUNICATIONS, LLC 516J WIND LAKE WI
2021-08-25 309-500 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SUMMUM IL
2021-08-25 309-591 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LA FAYETTE IL
2021-08-25 309-890 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 VICTORIA IL
2021-08-25 314-876 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - MO 093F ST LOUIS MO
2021-08-25 320-452 0XXX8XXX9XXX which blocks → PEERLESS NETWORK OF MINNESOTA, LLC - MN 107F ST CLOUD MN
2021-08-25 320-457 0–9 XXXall 10 · 5 holders which blocks → TELNYX LLC 073H VILLARD MN
2021-08-25 385-567 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H PROVO UT
2021-08-25 385-789 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H LEHI UT
2021-08-25 424-453 0–9 XXXall 10 · 3 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7139 BEVERLYHLS CA
2021-08-25 448-300 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → SKYE TELECOM LLC DBA SKYETEL 622J GRACEVILLE FL
2021-08-25 448-400 0XXX1XXX2XXX4XXX5XXX7XXX8XXX9XXX · 4 holders which blocks → SKYE TELECOM LLC DBA SKYETEL 622J PENSACOLA FL
2021-08-25 448-800 0XXX6XXX7XXX8XXX · 3 holders which blocks → SKYE TELECOM LLC DBA SKYETEL 622J CENTURY FL
2021-08-25 470-836 0–9 XXXwhole prefix which blocks → POWERTEL ATLANTA LICENSES, INC. 7473 ATLANTA GA
2021-08-25 470-884 0–9 XXXwhole prefix which blocks → POWERTEL ATLANTA LICENSES, INC. 7473 ATLANTA GA
2021-08-25 530-704 0–9 XXXall 10 · 5 holders which blocks → T-MOBILE USA, INC. 6529 WOODLAND CA
2021-08-25 575-465 0–9 XXXall 10 · 5 holders which blocks → FRACTEL, LLC 965H ROSWELL NM
2021-08-25 602-834 0–9 XXXwhole prefix which blocks → BANDWIDTH.COM CLEC, LLC - AZ 587F PHOENIX AZ
2021-08-25 616-320 0–9 XXXall 10 · 2 holders which blocks → BANDWIDTH.COM CLEC, LLC - MI 991E GRAND RPDS MI
2021-08-25 727-404 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 CLEARWATER FL
2021-08-25 737-297 0–9 XXXwhole prefix which blocks → T-MOBILE USA, INC. 6529 AUSTIN TX
2021-08-25 762-378 0–9 XXXall 10 · 3 holders which blocks → TON80 COMMUNICATIONS, LLC 516J WRENS GA
2021-08-25 830-344 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX which blocks → STPCS JOINT VENTURE, LLC 4290 DEL RIO TX
2021-08-25 839-278 0–9 XXXall 10 · 5 holders which blocks → TON80 COMMUNICATIONS, LLC 516J CAMDEN SC
2021-08-25 864-745 0–9 XXXall 10 · 3 holders which blocks → SUNCOM DBA T-MOBILE USA 8645 ANDERSON SC
2021-08-25 901-632 0–9 XXXwhole prefix which blocks → POWERTEL MEMPHIS LICENSES, INC. 7474 MEMPHIS TN
2021-08-25 934-215 0XXX1XXX2XXX3XXX4XXX5XXX8XXX · 4 holders which blocks → PAETEC ITEL, LLC 829J WATER MILL NY
2021-08-24 219-289 0–9 XXXall 10 · 3 holders which blocks → T-MOBILE USA, INC. 6529 E CHICAGO IN
2021-08-24 326-299 0XXX2XXX · 2 holders which blocks → TON80 COMMUNICATIONS, LLC 516J MECHANCSBG OH
2021-08-24 346-502 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - TX 903C HOUSTON TX
2021-08-24 430-287 0–9 XXXall 10 · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 TYLER TX
2021-08-24 437-395 not yet reported which blocks → Bell Mobility 6574 Toronto —
2021-08-24 458-273 0–9 XXXall 10 · 5 holders which blocks → PEERLESS NETWORK OF OREGON, LLC - OR 157F EUGENE OR
2021-08-24 463-254 0–9 XXXall 10 · 5 holders which blocks → OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 CICERO IN
2021-08-24 463-328 0–9 XXXall 10 · 3 holders which blocks → TON80 COMMUNICATIONS, LLC 516J CARMEL IN
2021-08-24 520-556 0–9 XXXall 10 · 4 holders which blocks → T-MOBILE USA, INC. 6529 SIERRAVIST AZ
2021-08-24 531-271 0–9 XXXall 10 · 4 holders which blocks → UNITED STATES CELLULAR - NE 6263 O NEILL NE
2021-08-24 629-259 0–9 XXXwhole prefix which blocks → POWERTEL NASHVILLE LICENSES, INC. 7476 NASHVILLE TN
2021-08-24 708-664 0–9 XXXwhole prefix which blocks → T-MOBILE USA, INC. 6529 CHICAGOHTS IL
2021-08-24 725-299 0–9 XXXall 10 · 6 holders which blocks → FRACTEL, LLC 965H SEARCHLIHT NV
2021-08-24 726-213 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - TX 903C SANANTONIO TX
2021-08-24 737-295 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - TX 903C AUSTIN TX
2021-08-24 737-296 0–9 XXXwhole prefix which blocks → T-MOBILE USA, INC. 6529 AUSTIN TX
2021-08-24 807-232 not yet reported which blocks → TBayTel 988H Marathon —
2021-08-24 865-404 0–9 XXXwhole prefix which blocks → POWERTEL NASHVILLE LICENSES, INC. 7476 KNOXVILLE TN
2021-08-24 915-292 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - TX 903C EL PASO TX
2021-08-24 928-418 0–9 XXXall 10 · 4 holders which blocks → T-MOBILE USA, INC. 6529 KINGMAN AZ

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/26/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.