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
2012-07-30 620-219 0XXX5XXX · 2 holders which blocks → UNITED WIRELESS COMMUNICATIONS, INC. 401D CIMARRON KS
2012-07-30 647-526 not yet reported which blocks → Bell Mobility 6574 Toronto —
2012-07-30 709-977 not yet reported which blocks → TELUS Integrated Communications 2782 Churchill Falls —
2012-07-30 845-388 1XXX3XXX4XXX9XXX · 4 holders which blocks → BARR TELL USA, INC. - NY 525G POUGHKEPSI NY
2012-07-27 219-276 0–9 XXXall 10 · 2 holders which blocks → T-MOBILE USA, INC. 6529 E CHICAGO IN
2012-07-27 321-203 0–9 XXXall 10 · 7 holders which blocks → CENTURYLINK COMMUNICATIONS, LLC 508J WINTERPARK FL
2012-07-26 419-742 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 5 holders which blocks → BANDWIDTH.COM CLEC, LLC - OH 001F PUT IN BAY OH
2012-07-26 587-337 not yet reported which blocks → Bell Mobility 6574 Edmonton —
2012-07-26 647-525 not yet reported which blocks → Bell Mobility 6574 Toronto —
2012-07-26 709-330 not yet reported which blocks → Bell Mobility Aliant 329A St. John's —
2012-07-26 778-367 not yet reported which blocks → TELUS 8086 Trail —
2012-07-25 438-934 not yet reported which blocks → TELUS Mobility 8303 Montreal —
2012-07-25 513-713 0–9 XXXall 10 · 2 holders which blocks → BANDWIDTH.COM CLEC, LLC - OH 001F CINCINNATI OH
2012-07-25 571-781 0–9 XXXall 10 · 6 holders which blocks → BANDWIDTH.COM CLEC, LLC - VA 079F NOKESVILLE VA
2012-07-25 613-201 not yet reported which blocks → Westport Telephone Company Limited 920D Perth —
2012-07-25 613-972 not yet reported which blocks → Westport Telephone Company Limited 920D Portland —
2012-07-25 615-450 0–9 XXXall 10 · 4 holders which blocks → BANDWIDTH.COM CLEC, LLC - TN 124F HARTSVILLE TN
2012-07-25 647-656 not yet reported which blocks → TELUS Mobility 8303 Toronto —
2012-07-25 681-214 0–9 XXXall 10 · 5 holders which blocks → BANDWIDTH.COM CLEC, LLC - WV 080F FAIRMONT WV
2012-07-25 681-495 0–9 XXXall 10 · 4 holders which blocks → BANDWIDTH.COM CLEC, LLC - WV 080F WESTON WV
2012-07-25 803-281 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 5 holders which blocks → BANDWIDTH.COM CLEC, LLC - SC 077F WHITMIRE SC
2012-07-25 901-401 0–9 XXXall 10 · 4 holders which blocks → BANDWIDTH.COM CLEC, LLC - TN 124F WESTWHITEV TN
2012-07-25 937-713 0–9 XXXwhole prefix which blocks → LEVEL 3 TELECOM OF OHIO, LLC - OH 7460 DAYTON OH
2012-07-25 971-251 0–9 XXXall 10 · 4 holders which blocks → BANDWIDTH.COM CLEC, LLC - OR 076F RAINIER OR
2012-07-24 210-570 0–9 XXXwhole prefix which blocks → BANDWIDTH.COM CLEC, LLC - TX 004F SANANTONIO TX
2012-07-24 234-903 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 MANCHESTR OH
2012-07-24 330-251 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CORTLAND OH
2012-07-24 417-771 0–9 XXXall 10 · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SPRINGFLD MO
2012-07-24 614-903 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 GAHANNA OH
2012-07-24 804-424 0–9 XXXall 10 · 7 holders which blocks → BANDWIDTH.COM CLEC, LLC - VA 079F GOOCHLAND VA
2012-07-23 502-881 0–9 XXXall 10 · 4 holders which blocks → METROPCS, INC. 5562 LA GRANGE KY
2012-07-23 515-207 0–9 XXXall 10 · 2 holders which blocks → MCC TELEPHONY OF IOWA, LLC - IA 751F DES MOINES IA
2012-07-23 570-810 0–9 XXXall 10 · 8 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 TAMAQUA PA
2012-07-23 712-377 0XXX3XXX4XXX5XXX6XXX7XXX · 4 holders which blocks → WINDSTREAM IOWA COMMUNICATIONS, INC. 1178 GRAVITY IA
2012-07-23 717-316 0–9 XXXall 10 · 4 holders which blocks → METROPCS, INC. 5562 HANOVER PA
2012-07-23 757-707 0–9 XXXall 10 · 5 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 WILLIAMSBG VA
2012-07-23 873-624 not yet reported which blocks → Videotron Ltd. 8306 Frontenac —
2012-07-23 909-345 0–9 XXXall 10 · 5 holders which blocks → BANDWIDTH.COM CLEC, LLC - CA 981E DIAMONDBAR CA
2012-07-20 702-329 0–9 XXXwhole prefix which blocks → BANDWIDTH.COM CLEC, LLC - NV 075F LAS VEGAS NV
2012-07-20 909-369 0–9 XXXwhole prefix which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7139 REDLANDS CA
2012-07-20 956-215 0–9 XXXall 10 · 3 holders which blocks → TRANSTELCO, INC. - TX 679E MCALLEN TX
2012-07-19 207-747 0–9 XXXall 10 · 4 holders which blocks → TWC IP ENABLED SERVICES, LLC 793K PORTLAND ME
2012-07-19 513-901 0–9 XXXall 10 · 8 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - OH 7532 WILLIAMSBG OH
2012-07-19 603-375 0XXX3XXX4XXX · 3 holders which blocks → TWC IP ENABLED SERVICES, LLC 793K ASHLAND NH
2012-07-19 812-351 0–9 XXXall 10 · 4 holders which blocks → POWERTEL KENTUCKY LICENSES, INC. 365C JASPER IN
2012-07-19 873-585 not yet reported which blocks → Telebec Ltee. 8239 Frontenac —
2012-07-18 616-288 0–9 XXXall 10 · 6 holders which blocks → OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 GRAND RPDS MI
2012-07-17 226-726 not yet reported which blocks → Fibernetics Corporation 464D Strathroy —
2012-07-17 289-965 not yet reported which blocks → Fibernetics Corporation 464D Stoney Creek —
2012-07-17 315-951 0–9 XXXall 10 · 4 holders which blocks → BANDWIDTH.COM CLEC, LLC - NY 997E CANASTOTA NY

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.