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
2012-05-24 937-309-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F MARYSVILLE OH
2012-05-24 937-568-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F SO VIENNA OH
2012-05-16 937-303-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F MARYSVILLE OH
2012-05-16 937-303-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F MARYSVILLE OH
2012-05-10 937-717-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 SPRINGFLD OH
2012-05-01 937-987-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7836 NEW VIENNA OH
2012-04-30 937-764-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F BELFAST OH
2012-04-30 937-810-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F RUSSELLSPT OH
2012-04-30 937-826-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F WOODSTOCK OH
2012-04-30 937-834-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F MECHANCSBG OH
2012-04-12 937-701-9XXX 9000–9999Assigned METROPCS, INC. 5562 DAYTON OH
2012-04-05 937-204-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 DAYTON OH
2012-04-05 937-204-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 DAYTON OH
2012-04-05 937-532-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 XENIA OH
2012-03-27 937-204-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F DAYTON OH
2012-03-27 937-683-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 EATON OH
2012-03-26 937-377-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7836 RUSSELLVL OH
2012-03-26 937-549-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7836 MANCHESTER OH
2012-03-19 937-566-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OH 7532 WILMINGTON OH
2012-03-19 937-607-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 DAYTON OH
2012-03-19 937-607-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 DAYTON OH
2012-03-19 937-607-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 DAYTON OH
2012-03-19 937-607-3XXX 3000–3999Assigned METROPCS, INC. 5562 DAYTON OH
2012-03-19 937-607-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 DAYTON OH
2012-03-19 937-607-5XXX 5000–5999Assigned METROPCS, INC. 5562 DAYTON OH
2012-03-15 937-204-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DAYTON OH
2012-03-08 937-640-3XXX 3000–3999Assigned TWC IP ENABLED SERVICES, LLC 793K DAYTON OH
2012-03-08 937-716-1XXX 1000–1999Assigned TWC IP ENABLED SERVICES, LLC 793K DAYTON OH
2012-03-08 937-806-8XXX 8000–8999Assigned TWC IP ENABLED SERVICES, LLC 793K FRANKLIN OH
2012-03-07 937-467-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 GREENVILLE OH
2012-03-07 937-661-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 HILLSBORO OH
2012-03-07 937-683-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 EATON OH
2012-03-07 937-844-6XXX 6000–6999Assigned AERIAL COMMUNICATIONS, INC. 6701 BELLEFNTAN OH
2012-03-06 937-640-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DAYTON OH
2012-03-06 937-640-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DAYTON OH
2012-02-28 937-459-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K GREENVILLE OH
2012-02-17 937-221-8XXX 8000–8999Assigned AT&T ENTERPRISES, LLC 516C DAYTON OH
2012-02-17 937-736-2XXX 2000–2999Assigned TWC IP ENABLED SERVICES, LLC 793K XENIA OH
2012-02-17 937-877-3XXX 3000–3999Assigned TWC IP ENABLED SERVICES, LLC 793K TIPP CITY OH
2012-02-17 937-917-8XXX 8000–8999Assigned TWC IP ENABLED SERVICES, LLC 793K SPRINGFLD OH
2012-02-16 937-489-5XXX 5000–5999Assigned AERIAL COMMUNICATIONS, INC. 6701 SIDNEY OH
2012-02-16 937-541-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 PIQUA OH
2012-02-16 937-705-6XXX 6000–6999Assigned TWC IP ENABLED SERVICES, LLC 793K BEAVERCREK OH
2012-02-16 937-896-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 URBANA OH
2012-02-14 937-565-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OH 7532 BELLEFNTAN OH
2012-02-14 937-772-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 URBANA OH
2012-01-30 937-999-6XXX 6000–6999Assigned PAETEC ITEL, LLC 829J DAYTON OH
2012-01-11 937-365-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F RAINSBORO OH
2012-01-10 937-348-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F MAGNETCSPG OH
2012-01-09 937-410-3XXX 3000–3999Assigned ONVOY, LLC - OH 464C VANDALIA 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.