NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

9 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 903
ONVOY, LLC - TX 6
MCIMETRO ACCESS TRANSMISSION SERVICES LLC 3
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
2020-06-24 903-551-6XXX 6000–6999Assigned ONVOY, LLC - TX 903C GUNTER TX
2020-06-24 903-551-7XXX 7000–7999Assigned ONVOY, LLC - TX 903C GUNTER TX
2020-06-24 903-989-3XXX 3000–3999Assigned ONVOY, LLC - TX 903C TRENTON TX
2020-06-24 903-989-4XXX 4000–4999Assigned ONVOY, LLC - TX 903C TRENTON TX
2020-06-23 903-329-6XXX 6000–6999Assigned ONVOY, LLC - TX 903C ROANE TX
2020-06-23 903-691-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TEXARKANA TX
2020-06-23 903-716-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TEXARKANA TX
2020-06-23 903-716-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TEXARKANA TX
2020-06-23 903-716-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TEXARKANA TX
2020-06-23 903-733-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TEXARKANA TX
2020-06-08 903-833-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F BENWHEELER TX
2020-05-01 903-907-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 BUFFALO TX
2020-04-23 903-501-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 NEW BOSTON TX
2020-04-23 903-501-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 NEW BOSTON TX
2020-04-23 903-501-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 NEW BOSTON TX
2020-04-07 903-274-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GREENVILLE TX
2020-04-07 903-274-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GREENVILLE TX
2020-04-07 903-355-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GREENVILLE TX
2020-04-07 903-355-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GREENVILLE TX
2020-03-31 903-420-8XXX 8000–8999Assigned PEERLESS NETWORK OF TEXAS, LLC - TX 177F EMHOUSE TX
2020-03-18 903-395-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F COOPER TX
2020-03-16 903-506-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TEXARKANA TX
2020-03-16 903-691-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TEXARKANA TX
2020-03-16 903-741-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F BOGATA TX
2020-03-10 903-656-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F LONE STAR TX
2020-03-06 903-812-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 KILGORE TX
2020-03-06 903-812-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 KILGORE TX
2020-03-06 903-985-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 KILGORE TX
2020-03-06 903-988-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 KILGORE TX
2020-02-14 903-320-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7148 LONE STAR TX
2020-02-12 903-499-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F CAYUGA TX
2020-02-12 903-608-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F TLSVNPONTS TX
2020-02-12 903-969-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F TROUP TX
2020-02-10 903-400-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F NECHES TX
2020-02-10 903-418-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F DETROIT TX
2020-02-10 903-999-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F MARTINS ML TX
2020-02-07 903-425-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F EUSTACE TX
2020-02-07 903-978-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F LKPALSTINE TX
2020-01-22 903-733-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TEXARKANA TX
2020-01-22 903-809-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TEXARKANA TX
2020-01-22 903-809-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TEXARKANA TX
2020-01-22 903-809-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TEXARKANA TX
2020-01-22 903-809-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TEXARKANA TX
2020-01-22 903-809-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TEXARKANA TX
2020-01-22 903-809-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TEXARKANA TX
2020-01-22 903-826-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TEXARKANA TX
2020-01-14 903-500-4XXX 4000–4999Assigned ONVOY, LLC - TX 903C LONGVIEW TX
2020-01-14 903-500-5XXX 5000–5999Assigned ONVOY, LLC - TX 903C LONGVIEW TX
2020-01-14 903-500-6XXX 6000–6999Assigned ONVOY, LLC - TX 903C LONGVIEW TX
2020-01-14 903-500-7XXX 7000–7999Assigned ONVOY, LLC - TX 903C LONGVIEW TX

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.