NumberResearch Membership · Data 09/26/2026

Recent prefix assignments

341 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 26
Rogers Communications Canada Inc. (Wireless) 23
NEW CINGULAR WIRELESS PCS, LLC - IL 22
ONVOY, LLC - CA 21
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
2021-06-04 747-399 0–9 XXXall 10 · 2 holders which blocks → FRACTEL, LLC 965H LACRSCENTA CA
2021-06-04 754-778 0–9 XXXwhole prefix which blocks → ONVOY, LLC - FL 937C FTLAUDERDL FL
2021-06-04 782-358 not yet reported which blocks → TELUS Integrated Communications 2782 Halifax —
2021-06-04 782-512 not yet reported which blocks → Fibernetics Corporation 464D Port Mouton —
2021-06-04 782-513 not yet reported which blocks → Fibernetics Corporation 464D Prospect Road —
2021-06-04 858-477 0–9 XXXall 10 · 5 holders which blocks → FRACTEL, LLC 965H SNDG SNDG CA
2021-06-03 228-288 0–9 XXXall 10 · 5 holders which blocks → FRACTEL, LLC 965H PASSCHRSTN MS
2021-06-03 240-835 0–9 XXXall 10 · 5 holders which blocks → ONVOY SPECTRUM, LLC 624H CLEAR SPG MD
2021-06-03 352-740 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - FL 937C CHIEFLAND FL
2021-06-03 458-488 0–9 XXXall 10 · 5 holders which blocks → FRACTEL, LLC 965H MEDFORD OR
2021-06-03 548-532 not yet reported which blocks → Fibernetics Corporation 464D Dutton —
2021-06-03 548-534 not yet reported which blocks → Fibernetics Corporation 464D Port Stanley —
2021-06-03 548-535 not yet reported which blocks → Fibernetics Corporation 464D Rodney —
2021-06-03 548-536 not yet reported which blocks → Fibernetics Corporation 464D Shedden —
2021-06-03 548-537 not yet reported which blocks → Fibernetics Corporation 464D Sparta —
2021-06-03 548-538 not yet reported which blocks → Fibernetics Corporation 464D St. Thomas —
2021-06-03 548-539 not yet reported which blocks → Fibernetics Corporation 464D West Lorne —
2021-06-03 563-644 0XXX1XXX2XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → TON80 COMMUNICATIONS, LLC 516J DECORAH IA
2021-06-03 582-682 2XXX5XXX7XXX · 2 holders which blocks → TON80 COMMUNICATIONS, LLC 516J BERLIN PA
2021-06-03 667-324 0–9 XXXall 10 · 3 holders which blocks → OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 RANDALLSTN MD
2021-06-03 667-529 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → FRACTEL, LLC 965H HURLOCK MD
2021-06-03 689-677 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H KISSIMMEE FL
2021-06-03 689-688 0–9 XXXall 10 · 2 holders which blocks → FRACTEL, LLC 965H ORLANDO FL
2021-06-03 930-244 0XXX1XXX2XXX3XXX4XXX · 3 holders which blocks → ONVOY SPECTRUM, LLC 624H CENTRAL IN
2021-06-03 930-330 1XXX3XXX · 2 holders which blocks → ONVOY SPECTRUM, LLC 624H GEORGETOWN IN
2021-06-02 216-405 0–9 XXXall 10 · 4 holders which blocks → T-MOBILE USA, INC. 6529 TERRACE OH
2021-06-02 262-291 0–9 XXXall 10 · 4 holders which blocks → HD CARRIER LLC 321J JACKSON WI
2021-06-02 262-868 6XXX7XXX8XXX · 3 holders which blocks → ONVOY SPECTRUM, LLC 624H WHEATLAND WI
2021-06-02 262-892 0XXX2XXX3XXX4XXX7XXX8XXX9XXX · 6 holders which blocks → ONVOY SPECTRUM, LLC 624H WILLIAMSBY WI
2021-06-02 313-547 0–9 XXXall 10 · 3 holders which blocks → HD CARRIER LLC 321J DETROITZN5 MI
2021-06-02 331-334 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC 224C BATAVIA IL
2021-06-02 501-459 0–9 XXXall 10 · 4 holders which blocks → STRATUS NETWORKS 495J CONWAY AR
2021-06-02 548-254 not yet reported which blocks → Wightman Communications Ltd. 138D Durham —
2021-06-02 618-705 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → BANDWIDTH.COM CLEC, LLC - IL 984E ALBERS IL
2021-06-02 618-720 0XXX1XXX8XXX · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - IL 984E POCAHONTAS IL
2021-06-02 618-721 0XXX1XXX2XXX3XXX4XXX7XXX8XXX9XXX · 6 holders which blocks → TELNYX LLC 073H BROWNSTOWN IL
2021-06-02 618-725 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 7 holders which blocks → T-MOBILE USA, INC. 6529 VANDALIA IL
2021-06-02 618-737 0–9 XXXall 10 · 2 holders which blocks → T-MOBILE USA, INC. 6529 BELLEVILLE IL
2021-06-02 779-288 0XXX2XXX8XXX · 3 holders which blocks → ONVOY, LLC 224C BEAVERVL IL
2021-06-02 870-813 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → STRATUS NETWORKS 495J BODCAW AR
2021-06-02 914-454 0–9 XXXall 10 · 3 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 MOUNTKISCO NY
2021-06-02 930-238 0XXX2XXX · 2 holders which blocks → BANDWIDTH.COM CLEC, LLC - IN 105F MEDORA IN
2021-06-02 970-839 0XXX1XXX6XXX7XXX8XXX · 5 holders which blocks → TELNYX LLC 073H SILT CO
2021-06-01 224-445 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC 224C ANTIOCH IL
2021-06-01 262-585 0XXX5XXX8XXX · 3 holders which blocks → ONVOY SPECTRUM, LLC 624H PTWASHIGTN WI
2021-06-01 405-986 0–9 XXXall 10 · 4 holders which blocks → T-MOBILE USA, INC. 6529 CHANDLER OK
2021-06-01 405-989 0XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → T-MOBILE USA, INC. 6529 HOLDENVL OK
2021-06-01 417-470 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 2 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 OZARK MO
2021-06-01 470-953 0–9 XXXwhole prefix which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ATLANTA NE GA
2021-06-01 603-810 0–9 XXXall 10 · 5 holders which blocks → TELNYX LLC 073H NASHUA NH

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.