NumberResearch Membership · Data 09/27/2026

Recent prefix assignments

341 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/27/2026

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
2021-02-24 470-794 0–9 XXXall 10 · 5 holders which blocks → BANDWIDTH.COM CLEC, LLC - GA 983E CONYERS GA
2021-02-24 470-797 0–9 XXXall 10 · 4 holders which blocks → PEERLESS NETWORK OF GEORGIA, LLC - GA 909E VILLA RICA GA
2021-02-24 506-788 not yet reported which blocks → Iristel Inc. 154E Petitcodiac —
2021-02-24 562-542 0–9 XXXall 10 · 2 holders which blocks → T-MOBILE USA, INC. 6529 LONG BEACH CA
2021-02-24 603-688 0–9 XXXall 10 · 4 holders which blocks → PEERLESS NETWORK OF NEW HAMPSHIRE, LLC - NH 927H CONCORD NH
2021-02-24 619-904 0–9 XXXall 10 · 2 holders which blocks → T-MOBILE USA, INC. 6529 CHULAVISTA CA
2021-02-24 659-220 0XXX2XXX3XXX4XXX5XXX6XXX7XXX · 2 holders which blocks → ONVOY, LLC - AL 604E GUIN AL
2021-02-24 681-356 0–9 XXXall 10 · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - WV 080F HNTNGTNZN1 WV
2021-02-24 681-357 0–9 XXXall 10 · 6 holders which blocks → BANDWIDTH.COM CLEC, LLC - WV 080F LOGAN WV
2021-02-24 682-563 0–9 XXXall 10 · 4 holders which blocks → TON80 COMMUNICATIONS, LLC 516J ARLINGTON TX
2021-02-24 720-806 0–9 XXXall 10 · 4 holders which blocks → PEERLESS NETWORK OF COLORADO, LLC - CO 278F DECKERS CO
2021-02-24 737-767 0–9 XXXall 10 · 5 holders which blocks → TON80 COMMUNICATIONS, LLC 516J LAMPASAS TX
2021-02-24 762-280 0–9 XXXall 10 · 8 holders which blocks → PEERLESS NETWORK OF GEORGIA, LLC - GA 909E HARLEM GA
2021-02-24 762-287 0–9 XXXall 10 · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LINCOLNTON GA
2021-02-24 825-485 not yet reported which blocks → Iristel Inc. 154E Drayton Valley —
2021-02-24 828-540 0–9 XXXall 10 · 5 holders which blocks → PEERLESS NETWORK OF NORTH CAROLINA, LLC - NC 350F TAYLORSVL NC
2021-02-24 912-566 0XXX1XXX2XXX3XXX4XXX5XXX7XXX9XXX · 7 holders which blocks → PEERLESS NETWORK OF GEORGIA, LLC - GA 909E TYBEE IS GA
2021-02-24 985-355 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - LA 749E AMITE CITY LA
2021-02-24 985-422 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - LA 749E RACELAND LA
2021-02-23 201-409 0–9 XXXwhole prefix which blocks → ONVOY, LLC - NJ 637C JERSEYCITY NJ
2021-02-23 272-255 0–9 XXXall 10 · 4 holders which blocks → OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 6626 TUNKHANNCK PA
2021-02-23 272-257 0–9 XXXall 10 · 5 holders which blocks → OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 6626 HONESDALE PA
2021-02-23 272-892 0XXX1XXX2XXX3XXX4XXX8XXX9XXX · 3 holders which blocks → TWILIO INTERNATIONAL, INC. 506J SCRANTON PA
2021-02-23 352-699 0–9 XXXall 10 · 5 holders which blocks → ONVOY SPECTRUM, LLC 624H CRYSTALRIV FL
2021-02-23 352-712 1XXX2XXX3XXX4XXX8XXX · 3 holders which blocks → ONVOY SPECTRUM, LLC 624H SALT SPG FL
2021-02-23 352-764 0–9 XXXall 10 · 5 holders which blocks → ONVOY SPECTRUM, LLC 624H LEESBURG FL
2021-02-23 352-785 0–9 XXXall 10 · 5 holders which blocks → ONVOY SPECTRUM, LLC 624H UMATILLA FL
2021-02-23 352-915 0–9 XXXall 10 · 5 holders which blocks → ONVOY SPECTRUM, LLC 624H LADY LAKE FL
2021-02-23 365-736 not yet reported which blocks → Iristel Inc. 154E Thornhill —
2021-02-23 365-980 not yet reported which blocks → Iristel Inc. 154E Markham —
2021-02-23 431-209 not yet reported which blocks → Bell Mobility 6574 Winnipeg —
2021-02-23 437-509 not yet reported which blocks → Bell Mobility 6574 Toronto —
2021-02-23 438-261 not yet reported which blocks → Bell Mobility 6574 Montreal —
2021-02-23 573-871 2XXX7XXX which blocks → ONVOY, LLC - MO 093F HERMANN MO
2021-02-23 725-288 0–9 XXXall 10 · 5 holders which blocks → FRACTEL, LLC 965H LAUGHLIN NV
2021-02-23 769-345 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → FRACTEL, LLC 965H LUCEDALE MS
2021-02-23 825-429 not yet reported which blocks → Bell Mobility 6574 Calgary —
2021-02-23 838-247 0XXX1XXX2XXX3XXX5XXX7XXX · 5 holders which blocks → FRACTEL, LLC 965H ELENBGDPOT NY
2021-02-23 862-360 0–9 XXXall 10 · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MORRISTOWN NJ
2021-02-23 872-678 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX · 4 holders which blocks → TON80 COMMUNICATIONS, LLC 516J CHICGOZN11 IL
2021-02-23 934-647 0–9 XXXall 10 · 6 holders which blocks → CABLEVISION LIGHTPATH, INC. - NY 7126 BAY SHORE NY
2021-02-23 989-505 0XXX1XXX2XXX3XXX4XXX5XXX6XXX9XXX · 4 holders which blocks → METROPCS, INC. 5562 GAYLORD MI
2021-02-22 279-208 0–9 XXXall 10 · 4 holders which blocks → METROPCS, INC. 5562 SCRM MAIN CA
2021-02-22 341-946 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H OKLD BKLY CA
2021-02-22 343-352 not yet reported which blocks → ISP Telecom Inc. 4727 Cardinal —
2021-02-22 343-569 not yet reported which blocks → ISP Telecom Inc. 4727 Enterprise —
2021-02-22 343-570 not yet reported which blocks → ISP Telecom Inc. 4727 Odessa —
2021-02-22 352-698 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → ONVOY SPECTRUM, LLC 624H FOREST FL
2021-02-22 365-263 not yet reported which blocks → ISP Telecom Inc. 4727 Newcastle —
2021-02-22 365-737 not yet reported which blocks → Videotron Ltd. 787G Burlington —

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/27/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.