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
2007-09-28 440-471-7XXX 7000–7999Assigned TWC IP ENABLED SERVICES, LLC 793K TRINITY OH
2007-09-18 440-415-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GENEVA OH
2007-09-12 440-281-8XXX 8000–8999Assigned TWC IP ENABLED SERVICES, LLC 793K ELYRIA OH
2007-09-12 440-281-9XXX 9000–9999Assigned TWC IP ENABLED SERVICES, LLC 793K ELYRIA OH
2007-09-12 440-409-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CLEVELAND OH
2007-09-04 440-417-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 MADISON OH
2007-09-04 440-591-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 BAINBRIDGE OH
2007-09-04 440-787-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 LORAIN OH
2007-09-04 440-787-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 LORAIN OH
2007-09-04 440-840-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 WILLOUGHBY OH
2007-08-29 440-231-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 PAINESVL OH
2007-08-29 440-316-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OH 7532 NORTHEATON OH
2007-08-29 440-787-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 LORAIN OH
2007-08-02 440-253-8XXX 8000–8999Assigned SIGECOM, LLC DBA WOW INTERNET CABLE AND PHONE 735E VICTORY OH
2007-08-02 440-268-8XXX 8000–8999Assigned SIGECOM, LLC DBA WOW INTERNET CABLE AND PHONE 735E STRONGSVL OH
2007-08-02 440-360-7XXX 7000–7999Assigned SIGECOM, LLC DBA WOW INTERNET CABLE AND PHONE 735E TRINITY OH
2007-08-02 440-454-7XXX 7000–7999Assigned SIGECOM, LLC DBA WOW INTERNET CABLE AND PHONE 735E OLMSTEDFLS OH
2007-08-02 440-628-8XXX 8000–8999Assigned SIGECOM, LLC DBA WOW INTERNET CABLE AND PHONE 735E NOROYALTON OH
2007-08-02 440-787-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 LORAIN OH
2007-08-02 440-832-2XXX 2000–2999Assigned SIGECOM, LLC DBA WOW INTERNET CABLE AND PHONE 735E BRECKSVL OH
2007-08-02 440-868-5XXX 5000–5999Assigned SIGECOM, LLC DBA WOW INTERNET CABLE AND PHONE 735E HILLCREST OH
2007-08-02 440-945-8XXX 8000–8999Assigned SIGECOM, LLC DBA WOW INTERNET CABLE AND PHONE 735E BEDFORD OH
2007-08-02 440-973-4XXX 4000–4999Assigned SIGECOM, LLC DBA WOW INTERNET CABLE AND PHONE 735E BEREA OH
2007-07-31 440-387-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 ELYRIA OH
2007-07-25 440-636-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 HUNTSBURG OH
2007-07-18 440-635-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 E CLARIDON OH
2007-07-17 440-453-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 ELYRIA OH
2007-07-09 440-596-6XXX 6000–6999Assigned CITYNET OHIO, LLC - OH 036B CLEVELAND OH
2007-07-05 440-840-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 WILLOUGHBY OH
2007-07-03 440-409-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CLEVELAND OH
2007-07-03 440-409-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CLEVELAND OH
2007-07-03 440-409-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CLEVELAND OH
2007-07-03 440-787-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 LORAIN OH
2007-06-23 440-715-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CHAGRINFLS OH
2007-06-19 440-231-4XXX 4000–4999Assigned METROPCS, INC. 5562 PAINESVL OH
2007-06-19 440-231-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 PAINESVL OH
2007-06-11 440-653-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7443 AVON LAKE OH
2007-06-11 440-787-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7443 LORAIN OH
2007-05-24 440-721-1XXX 1000–1999Assigned ONVOY, LLC - OH 464C PAINESVL OH
2007-05-23 440-994-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ASHTABULA OH
2007-05-22 440-985-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 AMHERST OH
2007-05-14 440-409-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CLEVELAND OH
2007-05-11 440-387-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 ELYRIA OH
2007-05-11 440-387-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 ELYRIA OH
2007-05-11 440-949-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 LORAIN OH
2007-05-02 440-275-5XXX 5000–5999Assigned TWC IP ENABLED SERVICES, LLC 793K AUSTINBURG OH
2007-05-02 440-298-6XXX 6000–6999Assigned TWC IP ENABLED SERVICES, LLC 793K THOMPSON OH
2007-05-02 440-321-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K E CLARIDON OH
2007-05-02 440-707-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K OBERLIN OH
2007-05-02 440-926-7XXX 7000–7999Assigned TWC IP ENABLED SERVICES, LLC 793K GRAFTON 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.