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
Clear Download CSV ↓
Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2004-12-13 903-280-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TEXARKANA TX
2004-12-10 903-330-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 TYLER TX
2004-12-09 903-280-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TEXARKANA TX
2004-12-09 903-353-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 LONGVIEW TX
2004-12-09 903-353-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 LONGVIEW TX
2004-12-02 903-806-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LONGVIEW TX
2004-12-02 903-806-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LONGVIEW TX
2004-12-02 903-806-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LONGVIEW TX
2004-12-02 903-806-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LONGVIEW TX
2004-11-29 903-280-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TEXARKANA TX
2004-11-19 903-253-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TYLER TX
2004-11-19 903-253-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TYLER TX
2004-11-19 903-253-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TYLER TX
2004-11-19 903-253-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TYLER TX
2004-11-19 903-253-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TYLER TX
2004-11-19 903-327-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DENISON TX
2004-11-19 903-327-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DENISON TX
2004-11-19 903-327-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DENISON TX
2004-11-19 903-390-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FAIRFIELD TX
2004-11-19 903-390-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FAIRFIELD TX
2004-11-08 903-285-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 MTPLEASANT TX
2004-11-04 903-280-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TEXARKANA TX
2004-11-04 903-300-3XXX 3000–3999Assigned CUMBY TELEPHONE COOPERATIVE, INC. 4042 COOPER TX
2004-11-01 903-269-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 GREENVILLE TX
2004-10-25 903-272-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 PARIS TX
2004-10-25 903-513-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 GREENVILLE TX
2004-10-19 903-326-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 RICE TX
2004-10-19 903-345-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 ROANE TX
2004-10-19 903-354-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 EMHOUSE TX
2004-10-19 903-484-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 BENWHEELER TX
2004-10-12 903-434-1XXX 1000–1999Assigned SOUTHWESTERN BELL 9533 MTPLEASANT TX
2004-10-07 903-280-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TEXARKANA TX
2004-10-06 903-275-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 ATHENS TX
2004-10-06 903-330-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 TYLER TX
2004-09-07 903-229-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CORSICANA TX
2004-09-07 903-229-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CORSICANA TX
2004-09-07 903-293-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TEXARKANA TX
2004-09-01 903-340-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MABANK TX
2004-09-01 903-340-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MABANK TX
2004-08-30 903-771-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 SHERMAN TX
2004-08-11 903-216-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 TYLER TX
2004-08-11 903-280-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 TEXARKANA TX
2004-07-27 903-390-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FAIRFIELD TX
2004-07-27 903-806-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LONGVIEW TX
2004-07-14 903-275-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 ATHENS TX
2004-06-29 903-799-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 ATLANTA TX
2004-06-23 903-213-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 CADDOMILLS TX
2004-06-22 903-231-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 TAWAKONI TX
2004-06-22 903-662-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 LONE OAK TX
2004-06-18 903-224-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 CASH 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.