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
2010-12-17 903-975-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 SANDYCREEK TX
2010-12-15 903-453-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GREENVILLE TX
2010-12-13 903-883-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F CASH TX
2010-11-20 903-486-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 BONHAM TX
2010-11-16 903-286-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ATHENS TX
2010-11-05 903-367-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C LADONIA TX
2010-11-05 903-378-4XXX 4000–4999Assigned AT&T ENTERPRISES, LLC 516C HONEYGROVE TX
2010-11-05 903-401-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C PARIS TX
2010-11-05 903-453-8XXX 8000–8999Assigned AT&T ENTERPRISES, LLC 516C GREENVILLE TX
2010-11-05 903-496-8XXX 8000–8999Assigned AT&T ENTERPRISES, LLC 516C WOLFE CITY TX
2010-11-05 903-602-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C CORSICANA TX
2010-11-05 903-873-9XXX 9000–9999Assigned AT&T ENTERPRISES, LLC 516C WILLSPOINT TX
2010-11-05 903-896-3XXX 3000–3999Assigned AT&T ENTERPRISES, LLC 516C EDGEWOOD TX
2010-11-02 903-221-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 PALESTINE TX
2010-11-02 903-373-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 PALESTINE TX
2010-11-01 903-374-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 GLADEWATER TX
2010-11-01 903-380-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 MTPLEASANT TX
2010-11-01 903-380-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 MTPLEASANT TX
2010-11-01 903-380-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 MTPLEASANT TX
2010-11-01 903-708-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 PITTSBURG TX
2010-10-29 903-655-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F HENDERSON TX
2010-10-28 903-900-1XXX 1000–1999Assigned ONVOY, LLC - TX 903C PARIS TX
2010-10-26 903-378-8XXX 8000–8999Assigned ONVOY, LLC - TX 903C HONEYGROVE TX
2010-10-26 903-443-4XXX 4000–4999Assigned ONVOY, LLC - TX 903C LADONIA TX
2010-10-26 903-896-9XXX 9000–9999Assigned ONVOY, LLC - TX 903C EDGEWOOD TX
2010-10-22 903-328-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SHERMAN TX
2010-10-22 903-662-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F LONE OAK TX
2010-10-15 903-716-0XXX 0000–0999Assigned VALOR TELECOMM TX, LP-TX #1 DBA WINDSTREAM COMM SW 1163 TEXARKANA TX
2010-10-12 903-265-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 CARTHAGE TX
2010-10-04 903-689-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F SULPHURSPG TX
2010-10-04 903-702-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F MARSHALL TX
2010-09-22 903-374-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 GLADEWATER TX
2010-09-22 903-541-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 JACKSONVL TX
2010-09-22 903-702-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 MARSHALL TX
2010-09-07 903-204-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F MTPLEASANT TX
2010-09-07 903-218-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F KILGORE TX
2010-09-07 903-265-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F CARTHAGE TX
2010-09-07 903-392-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F HENDERSON TX
2010-09-07 903-625-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F JACKSONVL TX
2010-09-07 903-708-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F PITTSBURG TX
2010-09-07 903-871-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F WHITEHOUSE TX
2010-08-31 903-884-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F OMAHA TX
2010-08-26 903-265-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 CARTHAGE TX
2010-08-26 903-265-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 CARTHAGE TX
2010-08-26 903-309-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 LONGVIEW TX
2010-08-26 903-309-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 LONGVIEW TX
2010-08-26 903-401-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 PARIS TX
2010-08-26 903-601-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 JEFFERSON TX
2010-08-26 903-805-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 TYLER TX
2010-08-26 903-805-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 TYLER 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.