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
Clear Download CSV ↓
Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2010-10-29 937-612-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F NO LEWISBG OH
2010-10-25 937-601-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F WMANSFIELD OH
2010-10-20 937-234-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F DAYTON OH
2010-10-20 937-347-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F XENIA OH
2010-10-20 937-369-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F DAYTON OH
2010-10-20 937-550-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F FRANKLIN OH
2010-10-06 937-919-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 XENIA OH
2010-10-04 937-212-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DAYTON OH
2010-10-04 937-212-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DAYTON OH
2010-10-04 937-823-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DAYTON OH
2010-10-04 937-823-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DAYTON OH
2010-09-29 937-356-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OH 7532 DAYTON OH
2010-09-24 937-536-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 SPRINGFLD OH
2010-09-16 937-210-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F BELLEFNTAN OH
2010-09-16 937-303-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F MARYSVILLE OH
2010-09-16 937-350-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F CENTERVLLE OH
2010-09-16 937-661-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F HILLSBORO OH
2010-09-16 937-705-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F BEAVERCREK OH
2010-09-03 937-356-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 DAYTON OH
2010-09-03 937-356-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 DAYTON OH
2010-09-03 937-765-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 NEWCARLISL OH
2010-08-31 937-561-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SPRINGFLD OH
2010-08-04 937-210-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 BELLEFNTAN OH
2010-08-04 937-716-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 DAYTON OH
2010-08-04 937-716-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 DAYTON OH
2010-08-04 937-716-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 DAYTON OH
2010-08-03 937-247-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F MSBGWCRLTN OH
2010-08-03 937-280-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F VANDALIA OH
2010-08-03 937-343-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F FAIRBORN OH
2010-08-03 937-356-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F DAYTON OH
2010-08-03 937-543-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F NEWCARLISL OH
2010-08-03 937-552-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F TROY OH
2010-07-30 937-329-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 DAYTON OH
2010-07-30 937-622-3XXX 3000–3999Assigned AERIAL COMMUNICATIONS, INC. 6701 SIDNEY OH
2010-07-30 937-622-4XXX 4000–4999Assigned AERIAL COMMUNICATIONS, INC. 6701 SIDNEY OH
2010-07-28 937-336-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 EATON OH
2010-07-09 937-342-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F SPRINGFLD OH
2010-07-09 937-821-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7836 FT LORAMIE OH
2010-06-29 937-705-1XXX 1000–1999Assigned CINCINNATI BELL EXTENDED TERRITORIES LLC - OH 309B BEAVERCREK OH
2010-06-04 937-561-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SPRINGFLD OH
2010-05-26 937-715-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F TROTWOOD OH
2010-05-24 937-641-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 DAYTON OH
2010-05-19 937-347-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F XENIA OH
2010-05-19 937-396-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F DAYTON OH
2010-05-19 937-540-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F ENGLEWOOD OH
2010-05-19 937-541-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F PIQUA OH
2010-05-19 937-550-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F FRANKLIN OH
2010-05-19 937-661-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F HILLSBORO OH
2010-05-19 937-668-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F DAYTON OH
2010-05-19 937-668-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F DAYTON 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.