NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

5 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

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
2021-12-07 937-539-7XXX 7000–7999Assigned AERIAL COMMUNICATIONS, INC. 6701 BELLEFNTAN OH
2021-12-07 937-594-4XXX 4000–4999Assigned AERIAL COMMUNICATIONS, INC. 6701 MARYSVILLE OH
2021-12-07 937-738-0XXX 0000–0999Assigned AERIAL COMMUNICATIONS, INC. 6701 MARYSVILLE OH
2021-12-07 937-772-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 URBANA OH
2021-12-07 937-772-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 URBANA OH
2021-12-07 937-803-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 GREENFIELD OH
2021-12-07 937-803-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 GREENFIELD OH
2021-12-03 937-891-8XXX 8000–8999Assigned TWILIO INTERNATIONAL, INC. 506J CEDARVILLE OH
2021-12-02 937-884-0XXX 0000–0999Assigned ONVOY, LLC - OH 464C PHILLIPSBG OH
2021-12-01 937-812-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 XENIA OH
2021-11-24 937-566-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7836 WILMINGTON OH
2021-11-20 937-792-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H WEST UNION OH
2021-11-19 937-400-6XXX 6000–6999Assigned ONVOY, LLC - OH 464C JACKSONCTR OH
2021-11-19 937-442-0XXX 0000–0999Assigned ONVOY, LLC - OH 464C MOWRYSTOWN OH
2021-11-03 937-809-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 DAYTON OH
2021-11-03 937-809-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 DAYTON OH
2021-11-03 937-814-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 DAYTON OH
2021-11-03 937-814-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 DAYTON OH
2021-11-03 937-814-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 DAYTON OH
2021-10-29 937-897-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F SIDNEY OH
2021-10-29 937-897-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F SIDNEY OH
2021-10-26 937-595-2XXX 2000–2999Assigned ONVOY, LLC - OH 464C BELLEFNTAN OH
2021-10-26 937-595-3XXX 3000–3999Assigned ONVOY, LLC - OH 464C BELLEFNTAN OH
2021-10-22 937-500-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 HILLSBORO OH
2021-10-22 937-565-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 BELLEFNTAN OH
2021-10-19 937-500-7XXX 7000–7999Assigned ONVOY, LLC - OH 464C HILLSBORO OH
2021-10-19 937-744-3XXX 3000–3999Assigned ONVOY, LLC - OH 464C TIPP CITY OH
2021-10-18 937-936-5XXX 5000–5999Assigned TWC IP ENABLED SERVICES, LLC 793K BOWERSVLLE OH
2021-10-14 937-727-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 SPRINGFLD OH
2021-10-14 937-727-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 SPRINGFLD OH
2021-10-14 937-727-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 SPRINGFLD OH
2021-10-14 937-727-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 SPRINGFLD OH
2021-10-14 937-925-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 SPRINGFLD OH
2021-09-27 937-722-4XXX 4000–4999Assigned METROPCS, INC. 5562 BELLEFNTAN OH
2021-09-07 937-373-0XXX 0000–0999Assigned ONVOY, LLC - OH 464C DECATUR OH
2021-09-07 937-375-0XXX 0000–0999Assigned ONVOY, LLC - OH 464C HIGGINSPT OH
2021-09-02 937-514-1XXX 1000–1999Assigned TERRA NOVA TELECOM INC. 145J FRANKLIN OH
2021-08-30 937-814-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DAYTON OH
2021-08-30 937-814-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DAYTON OH
2021-08-30 937-814-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DAYTON OH
2021-08-30 937-814-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DAYTON OH
2021-08-30 937-814-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DAYTON OH
2021-08-30 937-814-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DAYTON OH
2021-08-18 937-309-3XXX 3000–3999Assigned AERIAL COMMUNICATIONS, INC. 6701 MARYSVILLE OH
2021-08-18 937-309-6XXX 6000–6999Assigned AERIAL COMMUNICATIONS, INC. 6701 MARYSVILLE OH
2021-08-18 937-309-7XXX 7000–7999Assigned AERIAL COMMUNICATIONS, INC. 6701 MARYSVILLE OH
2021-08-18 937-537-3XXX 3000–3999Assigned AERIAL COMMUNICATIONS, INC. 6701 MARYSVILLE OH
2021-08-18 937-537-4XXX 4000–4999Assigned AERIAL COMMUNICATIONS, INC. 6701 MARYSVILLE OH
2021-08-18 937-537-9XXX 9000–9999Assigned AERIAL COMMUNICATIONS, INC. 6701 MARYSVILLE OH
2021-08-11 937-893-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F MARYSVILLE OH

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.