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
2017-02-14 903-686-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 LONGVIEW TX
2017-02-01 903-393-0XXX 0000–0999Assigned METROPCS, INC. 5562 JACKSONVL TX
2017-02-01 903-541-3XXX 3000–3999Assigned METROPCS, INC. 5562 JACKSONVL TX
2017-01-09 903-458-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7148 GREENVILLE TX
2016-12-19 903-718-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SHERMAN TX
2016-12-19 903-718-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SHERMAN TX
2016-12-19 903-718-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SHERMAN TX
2016-10-27 903-417-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 NEW BOSTON TX
2016-10-27 903-417-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 NEW BOSTON TX
2016-10-24 903-522-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 KILGORE TX
2016-10-24 903-522-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 KILGORE TX
2016-09-26 903-343-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TYLER TX
2016-09-26 903-895-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 NEW LONDON TX
2016-09-20 903-357-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SHERMAN TX
2016-09-20 903-357-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SHERMAN TX
2016-08-23 903-506-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 TEXARKANA TX
2016-07-19 903-426-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TYLER TX
2016-07-19 903-508-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TYLER TX
2016-07-13 903-718-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J SHERMAN TX
2016-07-12 903-303-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GREENVILLE TX
2016-07-06 903-941-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 TYLER TX
2016-07-06 903-941-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 TYLER TX
2016-07-05 903-716-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 TEXARKANA TX
2016-06-30 903-329-4XXX 4000–4999Assigned ONVOY, LLC - TX 903C ROANE TX
2016-06-24 903-294-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SHERMAN TX
2016-06-10 903-394-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PALESTINE TX
2016-06-08 903-336-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 TEXARKANA TX
2016-06-02 903-405-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 TYLER TX
2016-05-27 903-405-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TYLER TX
2016-05-24 903-458-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 GREENVILLE TX
2016-05-09 903-328-1XXX 1000–1999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 SHERMAN TX
2016-05-03 903-601-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7148 JEFFERSON TX
2016-04-20 903-470-7XXX 7000–7999Assigned ONVOY, LLC - TX 903C LONGVIEW TX
2016-04-19 903-405-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 TYLER TX
2016-04-19 903-426-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 TYLER TX
2016-04-19 903-999-9XXX 9000–9999Assigned FOREMOST TELECOMMUNICATIONS CORPORATION - TX 319D MARTINS ML TX
2016-03-16 903-290-0XXX 0000–0999Assigned ONVOY, LLC - TX 903C TOM BEAN TX
2016-03-16 903-290-1XXX 1000–1999Assigned ONVOY, LLC - TX 903C TOM BEAN TX
2016-03-16 903-400-2XXX 2000–2999Assigned ONVOY, LLC - TX 903C NECHES TX
2016-03-16 903-400-3XXX 3000–3999Assigned ONVOY, LLC - TX 903C NECHES TX
2016-03-16 903-412-2XXX 2000–2999Assigned ONVOY, LLC - TX 903C SHIRLEY TX
2016-03-16 903-412-3XXX 3000–3999Assigned ONVOY, LLC - TX 903C SHIRLEY TX
2016-03-16 903-414-5XXX 5000–5999Assigned ONVOY, LLC - TX 903C HOWE TX
2016-03-16 903-414-6XXX 6000–6999Assigned ONVOY, LLC - TX 903C HOWE TX
2016-03-16 903-476-2XXX 2000–2999Assigned ONVOY, LLC - TX 903C DORCHESTER TX
2016-03-16 903-476-3XXX 3000–3999Assigned ONVOY, LLC - TX 903C DORCHESTER TX
2016-03-16 903-523-0XXX 0000–0999Assigned ONVOY, LLC - TX 903C GORDONVL TX
2016-03-16 903-523-1XXX 1000–1999Assigned ONVOY, LLC - TX 903C GORDONVL TX
2016-03-16 903-568-0XXX 0000–0999Assigned ONVOY, LLC - TX 903C CELESTE TX
2016-03-16 903-568-8XXX 8000–8999Assigned ONVOY, LLC - TX 903C CELESTE 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.