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
Clear Download CSV ↓
Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2017-08-03 440-558-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 VICTORY OH
2017-08-03 440-558-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 VICTORY OH
2017-08-01 440-412-3XXX 3000–3999Assigned TWC IP ENABLED SERVICES, LLC 793K ELYRIA OH
2017-08-01 440-898-0XXX 0000–0999Assigned TWC IP ENABLED SERVICES, LLC 793K PAINESVL OH
2017-07-06 440-514-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CHAGRINFLS OH
2017-07-06 440-640-0XXX 0000–0999Assigned ONVOY, LLC - OH 464C TRINITY OH
2017-06-30 440-538-1XXX 1000–1999Assigned ONVOY, LLC - OH 464C LORAIN OH
2017-06-22 440-901-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CHARDON OH
2017-06-16 440-870-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 STRONGSVL OH
2017-06-02 440-558-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 VICTORY OH
2017-05-31 440-390-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 NOROYALTON OH
2017-05-31 440-390-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 NOROYALTON OH
2017-05-31 440-898-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 PAINESVL OH
2017-05-31 440-898-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 PAINESVL OH
2017-05-22 440-533-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 GATESMILLS OH
2017-05-15 440-538-0XXX 0000–0999Assigned ONVOY, LLC - OH 464C LORAIN OH
2017-05-11 440-412-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 ELYRIA OH
2017-05-11 440-898-2XXX 2000–2999Assigned FIRST COMMUNICATIONS, LLC 460K PAINESVL OH
2017-04-19 440-592-0XXX 0000–0999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OH 7532 BRECKSVL OH
2017-04-19 440-592-1XXX 1000–1999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OH 7532 BRECKSVL OH
2017-04-19 440-592-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OH 7532 BRECKSVL OH
2017-04-19 440-592-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OH 7532 BRECKSVL OH
2017-04-19 440-592-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OH 7532 BRECKSVL OH
2017-04-19 440-592-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OH 7532 BRECKSVL OH
2017-04-19 440-592-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OH 7532 BRECKSVL OH
2017-04-19 440-592-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OH 7532 BRECKSVL OH
2017-04-19 440-592-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OH 7532 BRECKSVL OH
2017-04-19 440-592-9XXX 9000–9999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OH 7532 BRECKSVL OH
2017-04-12 440-722-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 BRECKSVL OH
2017-04-12 440-722-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 BRECKSVL OH
2017-04-12 440-722-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 BRECKSVL OH
2017-04-12 440-722-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 BRECKSVL OH
2017-04-12 440-722-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 BRECKSVL OH
2017-04-12 440-722-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 BRECKSVL OH
2017-04-12 440-722-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 BRECKSVL OH
2017-04-12 440-898-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 PAINESVL OH
2017-04-12 440-929-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 BEREA OH
2017-04-12 440-929-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 BEREA OH
2017-04-12 440-929-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 BEREA OH
2017-04-12 440-929-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 BEREA OH
2017-04-12 440-929-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 BEREA OH
2017-04-12 440-929-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 BEREA OH
2017-04-12 440-929-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 BEREA OH
2017-04-12 440-929-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 BEREA OH
2017-04-12 440-932-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7443 HILLCREST OH
2017-04-12 440-932-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7443 HILLCREST OH
2017-04-12 440-932-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7443 HILLCREST OH
2017-04-12 440-932-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7443 HILLCREST OH
2017-04-04 440-530-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 WILLOUGHBY OH
2017-04-03 440-792-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 BRECKSVL 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.