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
2021-03-18 667-687 0XXX4XXX6XXX7XXX8XXX · 5 holders which blocks → ONVOY, LLC - MD 876D WARWICK MD
2021-03-18 667-766 1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → ONVOY, LLC - MD 876D STEVENSVL MD
2021-03-18 667-767 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - MD 876D STMICHAELS MD
2021-03-18 667-848 0–9 XXXall 10 · 4 holders which blocks → TON80 COMMUNICATIONS, LLC 516J ABERDEEN MD
2021-03-18 718-691 0–9 XXXwhole prefix which blocks → ONVOY, LLC- NY 384C NWYRCYZN07 NY
2021-03-18 718-957 0–9 XXXwhole prefix which blocks → ONVOY, LLC- NY 384C NWYRCYZN08 NY
2021-03-18 731-290 0XXX1XXX8XXX9XXX · 4 holders which blocks → STRATUS NETWORKS 495J BETHEL SPG TN
2021-03-18 772-842 0–9 XXXall 10 · 5 holders which blocks → FRACTEL, LLC 965H HOBE SOUND FL
2021-03-18 779-278 0XXX1XXX2XXX4XXX7XXX8XXX · 5 holders which blocks → STRATUS NETWORKS 495J GRANDRIDGE IL
2021-03-18 779-710 0XXX1XXX2XXX3XXX4XXX5XXX8XXX9XXX · 2 holders which blocks → ONVOY, LLC 224C ROCKFORD IL
2021-03-18 779-910 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC 224C DE KALB IL
2021-03-18 813-771 0–9 XXXall 10 · 2 holders which blocks → STRATUS NETWORKS 495J TAMPACEN FL
2021-03-18 830-318 0–9 XXXall 10 · 4 holders which blocks → STRATUS NETWORKS 495J NEWBRANFLS TX
2021-03-18 838-233 0XXX1XXX2XXX3XXX4XXX8XXX · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 SARANAC LK NY
2021-03-18 862-364 0XXX1XXX4XXX · 3 holders which blocks → CSC VOICE, LLC 612K FRANKLINBO NJ
2021-03-18 863-432 0–9 XXXall 10 · 7 holders which blocks → FRACTEL, LLC 965H FROSTPROOF FL
2021-03-18 863-842 0–9 XXXall 10 · 8 holders which blocks → FRACTEL, LLC 965H ARCADIA FL
2021-03-18 865-391 0–9 XXXall 10 · 5 holders which blocks → STRATUS NETWORKS 495J LENOIRCITY TN
2021-03-18 873-758 not yet reported which blocks → Fibernetics Corporation 464D Fort-Coulonge —
2021-03-18 873-759 not yet reported which blocks → Fibernetics Corporation 464D Gracefield —
2021-03-18 873-760 not yet reported which blocks → Fibernetics Corporation 464D Grand-Remous —
2021-03-18 873-761 not yet reported which blocks → Fibernetics Corporation 464D Kazabazua —
2021-03-18 873-762 not yet reported which blocks → Fibernetics Corporation 464D Low —
2021-03-18 873-763 not yet reported which blocks → Fibernetics Corporation 464D Luskville —
2021-03-18 873-764 not yet reported which blocks → Fibernetics Corporation 464D Montebello —
2021-03-18 873-765 not yet reported which blocks → Fibernetics Corporation 464D Papineauville —
2021-03-18 873-766 not yet reported which blocks → Fibernetics Corporation 464D Thurso —
2021-03-18 873-767 not yet reported which blocks → Fibernetics Corporation 464D Wakefield —
2021-03-18 878-285 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 6 holders which blocks → STRATUS NETWORKS 495J MTPLEASANT PA
2021-03-18 907-216 0XXX2XXX · 2 holders which blocks → GCI COMMUNICATION CORP. DBA GENERAL COMMUNICATION 7785 VALDEZ AK
2021-03-18 907-307 0XXX which blocks → GCI COMMUNICATION CORP. DBA GENERAL COMMUNICATION 7785 BARROW AK
2021-03-18 907-316 0XXX which blocks → GCI COMMUNICATION CORP. DBA GENERAL COMMUNICATION 7785 CORDOVA AK
2021-03-18 907-402 0XXX which blocks → GCI COMMUNICATION CORP. DBA GENERAL COMMUNICATION 7785 SITKA AK
2021-03-18 907-408 0XXX1XXX2XXX3XXX4XXX8XXX9XXX · 3 holders which blocks → GCI COMMUNICATION CORP. DBA GENERAL COMMUNICATION 7785 PALMER AK
2021-03-18 907-413 0XXX2XXX · 2 holders which blocks → GCI COMMUNICATION CORP. DBA GENERAL COMMUNICATION 7785 KODIAK AK
2021-03-18 907-415 0XXX1XXX4XXX8XXX9XXX · 2 holders which blocks → GCI COMMUNICATION CORP. DBA GENERAL COMMUNICATION 7785 FAIRBANKS AK
2021-03-18 907-503 0XXX8XXX · 2 holders which blocks → GCI COMMUNICATION CORP. DBA GENERAL COMMUNICATION 7785 WASILLA AK
2021-03-18 907-504 0XXX which blocks → GCI COMMUNICATION CORP. DBA GENERAL COMMUNICATION 7785 NOME AK
2021-03-18 907-510 0XXX which blocks → GCI COMMUNICATION CORP. DBA GENERAL COMMUNICATION 7785 KETCHIKAN AK
2021-03-18 907-535 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 3 holders which blocks → GCI COMMUNICATION CORP. DBA GENERAL COMMUNICATION 7785 EAGLERIVER AK
2021-03-18 907-657 0XXX which blocks → GCI COMMUNICATION CORP. DBA GENERAL COMMUNICATION 7785 JUNEAU AK
2021-03-18 907-681 0XXX which blocks → GCI COMMUNICATION CORP. DBA GENERAL COMMUNICATION 7785 DEADHORSE AK
2021-03-18 908-535 4XXX5XXX · 2 holders which blocks → CSC VOICE, LLC 612K BLAIRSTOWN NJ
2021-03-18 930-232 0–9 XXXall 10 · 6 holders which blocks → STRATUS NETWORKS 495J COLUMBUS IN
2021-03-18 940-699 5XXX6XXX9XXX · 3 holders which blocks → FRACTEL, LLC 965H BRIDGEPORT TX
2021-03-18 945-810 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - TX 903C IRVING TX
2021-03-17 229-901 0–9 XXXall 10 · 2 holders which blocks → ONVOY SPECTRUM, LLC 624H FITZGERALD GA
2021-03-17 256-875 0–9 XXXall 10 · 5 holders which blocks → STRATUS NETWORKS 495J HANCEVILLE AL
2021-03-17 267-660 0–9 XXXall 10 · 4 holders which blocks → STRATUS NETWORKS 495J LANSDALE PA
2021-03-17 272-992 0XXX2XXX3XXX4XXX · 4 holders which blocks → TON80 COMMUNICATIONS, LLC 516J AUBURN PA

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.