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
2008-04-16 440-688-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 CHESTERLD OH
2008-04-16 440-839-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 WAKEMAN OH
2008-04-16 440-853-8XXX 8000–8999Assigned TWC IP ENABLED SERVICES, LLC 793K PAINESVL OH
2008-04-15 440-218-9XXX 9000–9999Assigned ONVOY, LLC - OH 464C TRUMBULL OH
2008-04-14 440-799-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CLEVELAND OH
2008-04-14 440-799-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CLEVELAND OH
2008-04-14 440-799-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CLEVELAND OH
2008-04-10 440-654-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 LORAIN OH
2008-04-10 440-654-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 LORAIN OH
2008-04-08 440-458-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 ELYRIA OH
2008-04-04 440-536-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 ASHTABULA OH
2008-03-31 440-789-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ASHTABULA OH
2008-03-28 440-253-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7443 VICTORY OH
2008-03-28 440-448-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7443 GATESMILLS OH
2008-03-28 440-471-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7443 TRINITY OH
2008-03-28 440-520-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7443 WILLOUGHBY OH
2008-03-28 440-584-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7443 BRECKSVL OH
2008-03-28 440-652-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7443 NOROYALTON OH
2008-03-28 440-782-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7443 OLMSTEDFLS OH
2008-03-28 440-945-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7443 BEDFORD OH
2008-03-26 440-689-0XXX 0000–0999Assigned ARMSTRONG TELECOMMUNICATIONS, INC. - OH 024E ANDOVER OH
2008-03-18 440-453-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 ELYRIA OH
2008-03-18 440-654-2XXX 2000–2999Assigned TWC IP ENABLED SERVICES, LLC 793K LORAIN OH
2008-03-18 440-654-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K LORAIN OH
2008-02-06 440-591-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 BAINBRIDGE OH
2008-01-31 440-536-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 ASHTABULA OH
2008-01-31 440-536-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 ASHTABULA OH
2008-01-30 440-973-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 BEREA OH
2008-01-30 440-973-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 BEREA OH
2008-01-29 440-399-0XXX 0000–0999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7443 BEDFORD OH
2008-01-24 440-984-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7443 AMHERST OH
2008-01-22 440-863-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 BEREA OH
2008-01-21 440-799-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CLEVELAND OH
2008-01-17 440-536-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 ASHTABULA OH
2008-01-16 440-863-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 BEREA OH
2008-01-11 440-591-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 BAINBRIDGE OH
2008-01-11 440-954-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 WILLOUGHBY OH
2008-01-10 440-969-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ASHTABULA OH
2008-01-07 440-715-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CHAGRINFLS OH
2008-01-07 440-926-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OH 7532 GRAFTON OH
2007-12-31 440-265-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CONNEAUT OH
2007-12-13 440-458-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 ELYRIA OH
2007-12-07 440-527-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 WILLOUGHBY OH
2007-12-07 440-654-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 LORAIN OH
2007-12-03 440-202-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 BEREA OH
2007-12-03 440-969-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 ASHTABULA OH
2007-11-29 440-695-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7443 AVON OH
2007-11-28 440-654-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LORAIN OH
2007-11-20 440-220-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 WILLOUGHBY OH
2007-11-14 440-654-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 LORAIN 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.