NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

9 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 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
Clear Download CSV ↓
Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2007-12-10 903-818-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SHERMAN TX
2007-11-30 903-638-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 MINEOLA TX
2007-11-26 903-335-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 SULPHURSPG TX
2007-11-26 903-424-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 LONGVIEW TX
2007-11-26 903-441-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 GREENVILLE TX
2007-11-26 903-952-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 TYLER TX
2007-11-20 903-328-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 SHERMAN TX
2007-11-13 903-960-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 PITTSBURG TX
2007-10-26 903-335-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SULPHURSPG TX
2007-10-26 903-335-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SULPHURSPG TX
2007-10-26 903-467-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CORSICANA TX
2007-10-26 903-467-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CORSICANA TX
2007-10-23 903-375-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 SHERMAN TX
2007-10-23 903-771-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 SHERMAN TX
2007-10-23 903-905-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 PARIS TX
2007-10-23 903-905-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 PARIS TX
2007-10-19 903-951-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 SULPHURSPG TX
2007-10-17 903-387-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LONGVIEW TX
2007-10-17 903-449-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BONHAM TX
2007-10-11 903-340-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MABANK TX
2007-10-11 903-394-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PALESTINE TX
2007-10-10 903-952-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 TYLER TX
2007-10-09 903-915-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FAIRFIELD TX
2007-09-12 903-328-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SHERMAN TX
2007-09-12 903-352-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TYLER TX
2007-09-12 903-355-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GREENVILLE TX
2007-09-12 903-503-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MARSHALL TX
2007-09-12 903-526-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TYLER TX
2007-09-12 903-590-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TYLER TX
2007-09-12 903-830-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TYLER TX
2007-09-04 903-220-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 LONGVIEW TX
2007-09-04 903-220-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 LONGVIEW TX
2007-08-28 903-952-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 TYLER TX
2007-08-22 903-441-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 GREENVILLE TX
2007-08-22 903-944-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TYLER TX
2007-08-22 903-944-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TYLER TX
2007-08-21 903-424-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 LONGVIEW TX
2007-08-14 903-257-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CORSICANA TX
2007-08-14 903-594-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TYLER TX
2007-08-14 903-705-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TYLER TX
2007-08-14 903-841-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 GILMER TX
2007-08-14 903-920-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TYLER TX
2007-08-14 903-920-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TYLER TX
2007-08-09 903-665-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 JEFFERSON TX
2007-08-02 903-259-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 GREENVILLE TX
2007-08-02 903-259-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 GREENVILLE TX
2007-07-27 903-653-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 LONGVIEW TX
2007-07-27 903-653-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 LONGVIEW TX
2007-07-23 903-386-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 ATHENS TX
2007-07-23 903-386-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 ATHENS TX

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.