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
2011-06-07 937-716-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DAYTON OH
2011-05-26 937-586-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 DAYTON OH
2011-05-26 937-733-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 EATON OH
2011-05-20 937-340-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F ENON OH
2011-05-20 937-705-2XXX 2000–2999Assigned LEVEL 3 TELECOM OF OHIO, LLC - OH 7460 BEAVERCREK OH
2011-05-20 937-705-3XXX 3000–3999Assigned LEVEL 3 TELECOM OF OHIO, LLC - OH 7460 BEAVERCREK OH
2011-05-20 937-705-4XXX 4000–4999Assigned LEVEL 3 TELECOM OF OHIO, LLC - OH 7460 BEAVERCREK OH
2011-05-13 937-715-9XXX 9000–9999Assigned TWC IP ENABLED SERVICES, LLC 793K TROTWOOD OH
2011-05-12 937-875-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TROY OH
2011-05-12 937-999-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 DAYTON OH
2011-05-12 937-999-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 DAYTON OH
2011-05-12 937-999-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 DAYTON OH
2011-04-22 937-404-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F BELLEFNTAN OH
2011-04-22 937-985-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F DAYTON OH
2011-04-22 937-999-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F DAYTON OH
2011-04-08 937-621-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GREENVILLE OH
2011-04-08 937-823-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DAYTON OH
2011-03-18 937-926-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SPRINGFLD OH
2011-03-16 937-310-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 BELLBROOK OH
2011-03-16 937-688-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 SPRINGFLD OH
2011-03-11 937-966-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F NO HAMPTON OH
2011-03-08 937-999-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 DAYTON OH
2011-03-08 937-999-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 DAYTON OH
2011-03-04 937-453-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F BOWERSVLLE OH
2011-03-04 937-756-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F SOUTHSOLON OH
2011-03-04 937-947-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F LAURA OH
2011-03-03 937-594-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MARYSVILLE OH
2011-03-03 937-618-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7836 GEORGETOWN OH
2011-03-02 937-536-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 SPRINGFLD OH
2011-03-01 937-241-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 DAYTON OH
2011-03-01 937-523-1XXX 1000–1999Assigned CINCINNATI BELL EXTENDED TERRITORIES LLC - OH 309B SPRINGFLD OH
2011-03-01 937-523-2XXX 2000–2999Assigned CINCINNATI BELL EXTENDED TERRITORIES LLC - OH 309B SPRINGFLD OH
2011-03-01 937-523-3XXX 3000–3999Assigned CINCINNATI BELL EXTENDED TERRITORIES LLC - OH 309B SPRINGFLD OH
2011-03-01 937-523-4XXX 4000–4999Assigned CINCINNATI BELL EXTENDED TERRITORIES LLC - OH 309B SPRINGFLD OH
2011-03-01 937-523-5XXX 5000–5999Assigned CINCINNATI BELL EXTENDED TERRITORIES LLC - OH 309B SPRINGFLD OH
2011-03-01 937-523-6XXX 6000–6999Assigned CINCINNATI BELL EXTENDED TERRITORIES LLC - OH 309B SPRINGFLD OH
2011-03-01 937-523-7XXX 7000–7999Assigned CINCINNATI BELL EXTENDED TERRITORIES LLC - OH 309B SPRINGFLD OH
2011-03-01 937-523-8XXX 8000–8999Assigned CINCINNATI BELL EXTENDED TERRITORIES LLC - OH 309B SPRINGFLD OH
2011-03-01 937-523-9XXX 9000–9999Assigned CINCINNATI BELL EXTENDED TERRITORIES LLC - OH 309B SPRINGFLD OH
2011-02-28 937-896-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 URBANA OH
2011-02-23 937-471-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 SPRINGFLD OH
2011-02-22 937-219-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 DAYTON OH
2011-02-22 937-489-7XXX 7000–7999Assigned AERIAL COMMUNICATIONS, INC. 6701 SIDNEY OH
2011-02-22 937-624-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 SPRINGFLD OH
2011-02-22 937-661-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 HILLSBORO OH
2011-02-16 937-598-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F E LIBERTY OH
2011-02-11 937-919-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 XENIA OH
2011-02-10 937-203-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F DAYTON OH
2011-02-10 937-203-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F DAYTON OH
2011-02-10 937-582-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F DE GRAFF 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.