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
2018-09-28 440-810-0XXX 0000–0999Assigned METROPCS, INC. 5562 WICKLIFFE OH
2018-09-18 440-363-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F LEROY OH
2018-09-10 440-644-8XXX 8000–8999Assigned TELNYX LLC 073H CHESTERLD OH
2018-09-10 440-760-8XXX 8000–8999Assigned TELNYX LLC 073H LEROY OH
2018-09-10 440-970-9XXX 9000–9999Assigned TELNYX LLC 073H BURTON OH
2018-08-27 440-529-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ELYRIA OH
2018-08-27 440-530-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WILLOUGHBY OH
2018-08-23 440-640-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 TRINITY OH
2018-08-23 440-640-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 TRINITY OH
2018-08-22 440-294-4XXX 4000–4999Assigned ONVOY, LLC - OH 464C NEW LYME OH
2018-08-22 440-624-6XXX 6000–6999Assigned ONVOY, LLC - OH 464C JEFFERSON OH
2018-08-22 440-689-8XXX 8000–8999Assigned ONVOY, LLC - OH 464C ANDOVER OH
2018-08-21 440-276-5XXX 5000–5999Assigned ONVOY, LLC - OH 464C KIRTLAND OH
2018-08-14 440-589-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CHAGRINFLS OH
2018-07-24 440-412-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 ELYRIA OH
2018-07-13 440-613-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 VICTORY OH
2018-06-15 440-578-8XXX 8000–8999Assigned TWC IP ENABLED SERVICES, LLC 793K MENTOR OH
2018-05-15 440-961-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 AVON LAKE OH
2018-05-01 440-595-1XXX 1000–1999Assigned TWC IP ENABLED SERVICES, LLC 793K VERMILION OH
2018-04-25 440-586-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 BEREA OH
2018-04-09 440-597-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 AMHERST OH
2018-04-06 440-579-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K PAINESVL OH
2018-04-04 440-494-0XXX 0000–0999Assigned METROPCS, INC. 5562 WICKLIFFE OH
2018-04-04 440-538-3XXX 3000–3999Assigned TWC IP ENABLED SERVICES, LLC 793K LORAIN OH
2018-03-26 440-589-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OH 7532 CHAGRINFLS OH
2018-03-26 440-595-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F VERMILION OH
2018-03-23 440-279-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CHARDON OH
2018-03-23 440-538-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LORAIN OH
2018-03-23 440-589-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CHAGRINFLS OH
2018-03-19 440-517-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F AVON OH
2018-03-19 440-538-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F LORAIN OH
2018-03-16 440-313-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 E CLARIDON OH
2018-03-16 440-370-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 AMHERST OH
2018-03-07 440-340-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 VICTORY OH
2018-03-05 440-297-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K BEREA OH
2018-02-28 440-370-3XXX 3000–3999Assigned TWC IP ENABLED SERVICES, LLC 793K AMHERST OH
2018-02-16 440-337-0XXX 0000–0999Assigned TWC IP ENABLED SERVICES, LLC 793K CHAGRINFLS OH
2018-01-30 440-578-9XXX 9000–9999Assigned ONVOY, LLC - OH 464C MENTOR OH
2018-01-18 440-566-1XXX 1000–1999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7443 HILLCREST OH
2018-01-18 440-566-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7443 HILLCREST OH
2018-01-18 440-566-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7443 HILLCREST OH
2018-01-18 440-566-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7443 HILLCREST OH
2018-01-18 440-566-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7443 HILLCREST OH
2018-01-18 440-566-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7443 HILLCREST OH
2018-01-18 440-566-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7443 HILLCREST OH
2018-01-18 440-566-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7443 HILLCREST OH
2018-01-18 440-566-9XXX 9000–9999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7443 HILLCREST OH
2018-01-17 440-588-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OH 7532 TRINITY OH
2018-01-08 440-529-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ELYRIA OH
2017-12-26 440-517-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 AVON 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.