NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

8 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

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
2006-08-23 440-281-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 ELYRIA OH
2006-08-23 440-415-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GENEVA OH
2006-08-21 440-565-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 HILLCREST OH
2006-08-17 440-714-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 LORAIN OH
2006-08-15 440-563-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 ROCK CREEK OH
2006-08-15 440-840-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 WILLOUGHBY OH
2006-08-15 440-867-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 PAINESVL OH
2006-08-15 440-867-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 PAINESVL OH
2006-08-14 440-309-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K ELYRIA OH
2006-08-14 440-653-9XXX 9000–9999Assigned TWC IP ENABLED SERVICES, LLC 793K AVON LAKE OH
2006-08-14 440-984-7XXX 7000–7999Assigned TWC IP ENABLED SERVICES, LLC 793K AMHERST OH
2006-08-10 440-319-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 ASHTABULA OH
2006-08-07 440-532-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 BEREA OH
2006-08-07 440-799-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J CLEVELAND OH
2006-08-04 440-281-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ELYRIA OH
2006-08-04 440-390-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 NOROYALTON OH
2006-08-04 440-714-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 LORAIN OH
2006-08-04 440-749-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 WILLOUGHBY OH
2006-07-25 440-334-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 STRONGSVL OH
2006-07-24 440-313-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 E CLARIDON OH
2006-07-21 440-991-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CHAGRINFLS OH
2006-07-20 440-310-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 COLUMBISTA OH
2006-07-10 440-527-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WILLOUGHBY OH
2006-07-10 440-527-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WILLOUGHBY OH
2006-07-07 440-231-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 PAINESVL OH
2006-07-07 440-454-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 OLMSTEDFLS OH
2006-07-07 440-506-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 ELYRIA OH
2006-06-28 440-856-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 WILLOUGHBY OH
2006-06-28 440-856-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 WILLOUGHBY OH
2006-06-28 440-856-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 WILLOUGHBY OH
2006-06-27 440-637-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 PAINESVL OH
2006-06-27 440-714-3XXX 3000–3999Assigned METROPCS, INC. 5562 LORAIN OH
2006-06-16 440-313-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 E CLARIDON OH
2006-06-16 440-714-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 LORAIN OH
2006-06-16 440-867-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 PAINESVL OH
2006-06-13 440-565-7XXX 7000–7999Assigned AT&T ENTERPRISES, LLC 516C HILLCREST OH
2006-06-08 440-579-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C PAINESVL OH
2006-06-01 440-637-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 PAINESVL OH
2006-05-25 440-623-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 BEREA OH
2006-05-24 440-506-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 ELYRIA OH
2006-05-24 440-506-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 ELYRIA OH
2006-05-24 440-969-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 ASHTABULA OH
2006-05-23 440-525-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WILLOUGHBY OH
2006-05-23 440-525-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WILLOUGHBY OH
2006-05-23 440-525-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WILLOUGHBY OH
2006-05-23 440-525-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WILLOUGHBY OH
2006-05-19 440-541-5XXX 5000–5999Assigned METROPCS, INC. 5562 LORAIN OH
2006-05-18 440-309-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 ELYRIA OH
2006-05-17 440-372-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 NOROYALTON OH
2006-05-17 440-457-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 NOROYALTON OH

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.