NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

5 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 937
PEERLESS NETWORK OF OHIO, LLC - OH 2
U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 1
TELNYX LLC 1
AHOI 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
2009-12-09 937-249-7XXX 7000–7999Assigned AT&T ENTERPRISES, LLC 516C ABERDEEN OH
2009-12-07 937-981-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 GREENFIELD OH
2009-12-03 937-343-3XXX 3000–3999Assigned FIRST COMMUNICATIONS, LLC 460K FAIRBORN OH
2009-12-02 937-549-0XXX 0000–0999Assigned TWC IP ENABLED SERVICES, LLC 793K MANCHESTER OH
2009-12-02 937-883-3XXX 3000–3999Assigned TWC IP ENABLED SERVICES, LLC 793K SOUTHSOLON OH
2009-11-06 937-699-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BELLEFNTAN OH
2009-10-30 937-621-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GREENVILLE OH
2009-10-08 937-244-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SPRINGFLD OH
2009-10-08 937-562-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 XENIA OH
2009-10-05 937-310-6XXX 6000–6999Assigned AT&T ENTERPRISES, LLC 516C BELLBROOK OH
2009-10-05 937-562-3XXX 3000–3999Assigned AT&T ENTERPRISES, LLC 516C XENIA OH
2009-10-05 937-679-8XXX 8000–8999Assigned AT&T ENTERPRISES, LLC 516C NEWCARLISL OH
2009-10-05 937-873-2XXX 2000–2999Assigned AT&T ENTERPRISES, LLC 516C FAIRBORN OH
2009-10-05 937-916-4XXX 4000–4999Assigned AT&T ENTERPRISES, LLC 516C PIQUA OH
2009-10-02 937-225-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 DAYTON OH
2009-10-02 937-443-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 DAYTON OH
2009-10-02 937-641-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 DAYTON OH
2009-09-24 937-342-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 SPRINGFLD OH
2009-09-24 937-615-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 PIQUA OH
2009-09-24 937-615-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 PIQUA OH
2009-09-24 937-831-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 SPRINGFLD OH
2009-09-24 937-831-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 SPRINGFLD OH
2009-09-23 937-279-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 DAYTON OH
2009-09-23 937-279-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 DAYTON OH
2009-09-23 937-396-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 DAYTON OH
2009-09-23 937-622-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SIDNEY OH
2009-09-17 937-242-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 DAYTON OH
2009-09-17 937-242-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 DAYTON OH
2009-09-17 937-242-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 DAYTON OH
2009-09-17 937-242-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 DAYTON OH
2009-09-17 937-242-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 DAYTON OH
2009-09-16 937-892-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 WEST UNION OH
2009-09-10 937-630-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 DAYTON OH
2009-09-04 937-561-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SPRINGFLD OH
2009-09-04 937-822-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 GEORGETOWN OH
2009-09-04 937-869-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 URBANA OH
2009-09-04 937-926-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 SPRINGFLD OH
2009-09-04 937-926-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 SPRINGFLD OH
2009-09-03 937-733-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 EATON OH
2009-09-03 937-823-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 DAYTON OH
2009-09-03 937-823-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 DAYTON OH
2009-09-03 937-823-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 DAYTON OH
2009-08-31 937-529-3XXX 3000–3999Assigned LEVEL 3 TELECOM OF OHIO, LLC - OH 7460 TROTWOOD OH
2009-08-26 937-679-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 NEWCARLISL OH
2009-08-18 937-768-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 XENIA OH
2009-08-18 937-938-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 DAYTON OH
2009-08-03 937-710-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 SIDNEY OH
2009-08-03 937-823-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 DAYTON OH
2009-07-29 937-798-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 PEEBLES OH
2009-07-17 937-892-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 WEST UNION 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.