NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

8 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

Most carrier growth happens here, not at the prefix level: under number pooling, carriers receive individual 1,000-number blocks (e.g. 626-470-0XXX) within already-assigned prefixes. Assignments are initial assignments — the current serving carrier of individual numbers may differ due to portability.

Most active assignees, last 30 days — NPA 440
ONVOY, LLC - OH 2
EXIANT COMMUNICATIONS LLC 2
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 2
NEW CINGULAR WIRELESS PCS, LLC - IL 1
INTRADO COMMUNICATIONS, LLC 1
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 thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2019-08-15 440-553-1XXX 1000–1999Assigned PEERLESS NETWORK OF OHIO, LLC - OH 284F ASHTABULA OH
2019-08-15 440-901-2XXX 2000–2999Assigned PEERLESS NETWORK OF OHIO, LLC - OH 284F CHARDON OH
2019-07-31 440-587-2XXX 2000–2999Assigned FIRST COMMUNICATIONS, LLC 460K BRECKSVL OH
2019-07-31 440-587-3XXX 3000–3999Assigned FIRST COMMUNICATIONS, LLC 460K BRECKSVL OH
2019-06-17 440-613-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F VICTORY OH
2019-06-14 440-598-7XXX 7000–7999Assigned ONVOY, LLC - OH 464C BIRMINGHAM OH
2019-06-14 440-598-8XXX 8000–8999Assigned ONVOY, LLC - OH 464C BIRMINGHAM OH
2019-06-10 440-517-5XXX 5000–5999Assigned ONVOY, LLC - OH 464C AVON OH
2019-06-10 440-517-7XXX 7000–7999Assigned ONVOY, LLC - OH 464C AVON OH
2019-06-10 440-595-5XXX 5000–5999Assigned ONVOY, LLC - OH 464C VERMILION OH
2019-06-10 440-595-6XXX 6000–6999Assigned ONVOY, LLC - OH 464C VERMILION OH
2019-06-10 440-597-4XXX 4000–4999Assigned ONVOY, LLC - OH 464C AMHERST OH
2019-06-10 440-597-5XXX 5000–5999Assigned ONVOY, LLC - OH 464C AMHERST OH
2019-06-10 440-616-6XXX 6000–6999Assigned ONVOY, LLC - OH 464C LORAIN OH
2019-06-10 440-616-7XXX 7000–7999Assigned ONVOY, LLC - OH 464C LORAIN OH
2019-06-10 440-961-5XXX 5000–5999Assigned ONVOY, LLC - OH 464C AVON LAKE OH
2019-06-10 440-961-6XXX 6000–6999Assigned ONVOY, LLC - OH 464C AVON LAKE OH
2019-06-03 440-751-0XXX 0000–0999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OH 7532 OBERLIN OH
2019-05-28 440-586-2XXX 2000–2999Assigned PEERLESS NETWORK OF OHIO, LLC - OH 284F BEREA OH
2019-05-07 440-613-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F VICTORY OH
2019-04-25 440-276-9XXX 9000–9999Assigned TELNYX LLC 073H KIRTLAND OH
2019-04-09 440-514-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CHAGRINFLS OH
2019-04-05 440-613-2XXX 2000–2999Assigned ONVOY, LLC - OH 464C VICTORY OH
2019-04-05 440-613-3XXX 3000–3999Assigned ONVOY, LLC - OH 464C VICTORY OH
2019-04-05 440-613-4XXX 4000–4999Assigned ONVOY, LLC - OH 464C VICTORY OH
2019-03-20 440-588-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OH 7532 TRINITY OH
2019-03-18 440-587-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OH 7532 BRECKSVL OH
2019-02-27 440-581-0XXX 0000–0999Assigned PEERLESS NETWORK OF OHIO, LLC - OH 284F ELYRIA OH
2019-02-27 440-870-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 STRONGSVL OH
2019-02-20 440-595-2XXX 2000–2999Assigned SIGECOM, LLC DBA WOW INTERNET CABLE AND PHONE 735E VERMILION OH
2019-02-11 440-514-0XXX 0000–0999Assigned PEERLESS NETWORK OF OHIO, LLC - OH 284F CHAGRINFLS OH
2019-02-11 440-643-0XXX 0000–0999Assigned PEERLESS NETWORK OF OHIO, LLC - OH 284F COLUMBISTA OH
2019-01-18 440-870-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 STRONGSVL OH
2019-01-17 440-983-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 MADISON OH
2019-01-17 440-983-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 MADISON OH
2019-01-17 440-983-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 MADISON OH
2019-01-09 440-850-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 ASHTABULA OH
2018-12-12 440-538-4XXX 4000–4999Assigned METROPCS, INC. 5562 LORAIN OH
2018-12-11 440-307-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 MADISON OH
2018-12-07 440-581-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OH 7532 ELYRIA OH
2018-10-29 440-497-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 WILLOUGHBY OH
2018-10-29 440-497-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 WILLOUGHBY OH
2018-10-29 440-710-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 WILLOUGHBY OH
2018-10-24 440-643-9XXX 9000–9999Assigned PEERLESS NETWORK OF OHIO, LLC - OH 284F COLUMBISTA OH
2018-10-19 440-317-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 BEDFORD OH
2018-10-19 440-597-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 AMHERST OH
2018-10-18 440-754-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 PAINESVL OH
2018-10-08 440-710-7XXX 7000–7999Assigned SIGECOM, LLC DBA WOW INTERNET CABLE AND PHONE 735E WILLOUGHBY OH
2018-09-28 440-529-5XXX 5000–5999Assigned METROPCS, INC. 5562 ELYRIA OH
2018-09-28 440-597-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F AMHERST OH

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.