NumberResearch Membership · Data 09/21/2026

Recent thousands-block assignments

8 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/21/2026

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
2016-06-09 440-772-5XXX 5000–5999Assigned TWC IP ENABLED SERVICES, LLC 793K TRINITY OH
2016-06-09 440-797-5XXX 5000–5999Assigned TWC IP ENABLED SERVICES, LLC 793K BEDFORD OH
2016-06-01 440-204-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LORAIN OH
2016-05-26 440-904-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 E CLARIDON OH
2016-05-24 440-497-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WILLOUGHBY OH
2016-05-16 440-661-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K ASHTABULA OH
2016-05-10 440-652-9XXX 9000–9999Assigned TWC IP ENABLED SERVICES, LLC 793K NOROYALTON OH
2016-05-10 440-671-6XXX 6000–6999Assigned ONVOY, LLC - OH 464C BRECKSVL OH
2016-05-10 440-671-7XXX 7000–7999Assigned ONVOY, LLC - OH 464C BRECKSVL OH
2016-04-27 440-403-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 BEREA OH
2016-04-27 440-472-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 BEREA OH
2016-04-27 440-472-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 BEREA OH
2016-04-27 440-472-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 BEREA OH
2016-04-27 440-472-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 BEREA OH
2016-04-27 440-472-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 BEREA OH
2016-04-27 440-493-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 VICTORY OH
2016-04-27 440-493-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 VICTORY OH
2016-04-27 440-493-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 VICTORY OH
2016-04-27 440-493-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 VICTORY OH
2016-04-27 440-493-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 VICTORY OH
2016-04-27 440-493-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 VICTORY OH
2016-04-27 440-493-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 VICTORY OH
2016-04-26 440-857-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7443 CLEVELAND OH
2016-04-20 440-797-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 BEDFORD OH
2016-03-30 440-266-3XXX 3000–3999Assigned ONVOY, LLC - OH 464C MENTOR OH
2016-03-30 440-266-4XXX 4000–4999Assigned ONVOY, LLC - OH 464C MENTOR OH
2016-03-30 440-644-3XXX 3000–3999Assigned ONVOY, LLC - OH 464C CHESTERLD OH
2016-03-30 440-644-4XXX 4000–4999Assigned ONVOY, LLC - OH 464C CHESTERLD OH
2016-03-30 440-650-0XXX 0000–0999Assigned ONVOY, LLC - OH 464C ASHTABULA OH
2016-03-30 440-650-1XXX 1000–1999Assigned ONVOY, LLC - OH 464C ASHTABULA OH
2016-03-30 440-771-0XXX 0000–0999Assigned ONVOY, LLC - OH 464C HILLCREST OH
2016-03-30 440-771-1XXX 1000–1999Assigned ONVOY, LLC - OH 464C HILLCREST OH
2016-03-30 440-817-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 BRECKSVL OH
2016-03-30 440-817-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 BRECKSVL OH
2016-03-30 440-817-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 BRECKSVL OH
2016-03-30 440-817-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 BRECKSVL OH
2016-03-30 440-817-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 BRECKSVL OH
2016-03-30 440-817-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 BRECKSVL OH
2016-03-30 440-817-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 BRECKSVL OH
2016-03-29 440-412-7XXX 7000–7999Assigned TWC IP ENABLED SERVICES, LLC 793K ELYRIA OH
2016-03-25 440-493-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 VICTORY OH
2016-03-25 440-732-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 STRONGSVL OH
2016-03-23 440-535-0XXX 0000–0999Assigned SIGECOM, LLC DBA WOW INTERNET CABLE AND PHONE 735E NORTHEATON OH
2016-03-17 440-760-5XXX 5000–5999Assigned ONVOY, LLC - OH 464C LEROY OH
2016-03-17 440-760-6XXX 6000–6999Assigned ONVOY, LLC - OH 464C LEROY OH
2016-03-08 440-970-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J BURTON OH
2016-03-07 440-485-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CHAGRINFLS OH
2016-03-07 440-485-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CHAGRINFLS OH
2016-03-07 440-485-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CHAGRINFLS OH
2016-03-07 440-485-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CHAGRINFLS OH

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.