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
2013-11-22 937-553-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MARYSVILLE OH
2013-11-22 937-747-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J NO LEWISBG OH
2013-11-20 937-446-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7836 SARDINIA OH
2013-11-20 937-696-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7836 FARMERSVL OH
2013-11-20 937-697-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7836 CEDARVILLE OH
2013-11-14 937-259-8XXX 8000–8999Assigned AT&T ENTERPRISES, LLC 516C DAYTON OH
2013-11-08 937-347-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 XENIA OH
2013-11-08 937-347-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 XENIA OH
2013-11-08 937-532-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 XENIA OH
2013-11-08 937-532-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 XENIA OH
2013-11-08 937-557-2XXX 2000–2999Assigned CINCINNATI BELL EXTENDED TERRITORIES LLC - OH 309B FRANKLIN OH
2013-11-08 937-562-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 XENIA OH
2013-11-08 937-708-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 XENIA OH
2013-11-08 937-768-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 XENIA OH
2013-11-08 937-919-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 XENIA OH
2013-11-08 937-919-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 XENIA OH
2013-11-08 937-919-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 XENIA OH
2013-11-07 937-818-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 DAYTON OH
2013-10-29 937-481-5XXX 5000–5999Assigned TWC IP ENABLED SERVICES, LLC 793K WILMINGTON OH
2013-10-25 937-452-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 CAMDEN OH
2013-10-25 937-658-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 SIDNEY OH
2013-10-21 937-204-6XXX 6000–6999Assigned METROPCS, INC. 5562 DAYTON OH
2013-10-21 937-204-7XXX 7000–7999Assigned METROPCS, INC. 5562 DAYTON OH
2013-10-21 937-204-8XXX 8000–8999Assigned METROPCS, INC. 5562 DAYTON OH
2013-10-21 937-540-5XXX 5000–5999Assigned METROPCS, INC. 5562 ENGLEWOOD OH
2013-10-21 937-560-9XXX 9000–9999Assigned METROPCS, INC. 5562 MSBGWCRLTN OH
2013-10-21 937-576-6XXX 6000–6999Assigned METROPCS, INC. 5562 VANDALIA OH
2013-10-21 937-715-7XXX 7000–7999Assigned METROPCS, INC. 5562 TROTWOOD OH
2013-10-21 937-727-7XXX 7000–7999Assigned METROPCS, INC. 5562 SPRINGFLD OH
2013-10-21 937-818-8XXX 8000–8999Assigned METROPCS, INC. 5562 DAYTON OH
2013-10-21 937-877-7XXX 7000–7999Assigned METROPCS, INC. 5562 TIPP CITY OH
2013-10-21 937-889-8XXX 8000–8999Assigned METROPCS, INC. 5562 LIBERTY OH
2013-10-21 937-895-5XXX 5000–5999Assigned METROPCS, INC. 5562 GERMANTOWN OH
2013-10-18 937-503-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 DAYTON OH
2013-10-14 937-765-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 NEWCARLISL OH
2013-10-14 937-818-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DAYTON OH
2013-10-14 937-818-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DAYTON OH
2013-10-08 937-504-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 SPRINGFLD OH
2013-10-08 937-504-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 SPRINGFLD OH
2013-09-16 937-203-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 DAYTON OH
2013-09-16 937-421-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J JACKSONCTR OH
2013-09-16 937-507-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SIDNEY OH
2013-09-16 937-639-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 ANNA OH
2013-09-16 937-821-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 FT LORAMIE OH
2013-09-16 937-858-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 BOTKINS OH
2013-09-06 937-758-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OH 7532 ST PARIS OH
2013-09-06 937-802-5XXX 5000–5999Assigned TWC IP ENABLED SERVICES, LLC 793K DAYTON OH
2013-09-05 937-318-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 FAIRBORN OH
2013-09-05 937-318-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 FAIRBORN OH
2013-09-05 937-343-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 FAIRBORN 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.