NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

5 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 214
ONVOY, LLC - TX 3
HD CARRIER LLC 2
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
2004-04-13 214-481-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 DALLAS TX
2004-04-13 214-481-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 DALLAS TX
2004-04-13 214-481-9XXX 9000–9999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 DALLAS TX
2004-04-02 214-279-0XXX 0000–0999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 DALLAS TX
2004-04-02 214-279-1XXX 1000–1999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 DALLAS TX
2004-04-02 214-279-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 DALLAS TX
2004-04-02 214-279-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 DALLAS TX
2004-04-02 214-279-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 DALLAS TX
2004-04-02 214-279-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 DALLAS TX
2004-04-02 214-279-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 DALLAS TX
2004-04-02 214-279-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 DALLAS TX
2004-04-02 214-279-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 DALLAS TX
2004-04-02 214-279-9XXX 9000–9999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 DALLAS TX
2004-03-17 214-705-0XXX 0000–0999Assigned SOUTHWESTERN BELL 9533 FRISCO TX
2004-03-17 214-705-1XXX 1000–1999Assigned SOUTHWESTERN BELL 9533 FRISCO TX
2004-03-17 214-705-6XXX 6000–6999Assigned SOUTHWESTERN BELL 9533 FRISCO TX
2004-03-17 214-705-7XXX 7000–7999Assigned SOUTHWESTERN BELL 9533 FRISCO TX
2004-03-17 214-705-8XXX 8000–8999Assigned SOUTHWESTERN BELL 9533 FRISCO TX
2004-03-17 214-705-9XXX 9000–9999Assigned SOUTHWESTERN BELL 9533 FRISCO TX
2004-02-09 214-491-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MCKINNEY TX
2004-02-09 214-733-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MCKINNEY TX
2004-02-09 214-733-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MCKINNEY TX
2004-02-04 214-278-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 GRANDPRARI TX
2004-01-26 214-883-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 GRANDPRARI TX
2004-01-26 214-883-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 GRANDPRARI TX
2004-01-19 214-245-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 DALLAS TX
2004-01-19 214-245-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 DALLAS TX
2004-01-19 214-585-6XXX 6000–6999Assigned METROPCS, INC. 5562 MCKINNEY TX
2004-01-19 214-585-7XXX 7000–7999Assigned METROPCS, INC. 5562 MCKINNEY TX
2004-01-19 214-585-8XXX 8000–8999Assigned METROPCS, INC. 5562 MCKINNEY TX
2004-01-15 214-493-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 IRVING TX
2004-01-09 214-383-0XXX 0000–0999Assigned SOUTHWESTERN BELL 9533 ALLEN TX
2004-01-09 214-383-1XXX 1000–1999Assigned SOUTHWESTERN BELL 9533 ALLEN TX
2004-01-09 214-383-2XXX 2000–2999Assigned SOUTHWESTERN BELL 9533 ALLEN TX
2004-01-09 214-383-3XXX 3000–3999Assigned SOUTHWESTERN BELL 9533 ALLEN TX
2004-01-09 214-383-9XXX 9000–9999Assigned SOUTHWESTERN BELL 9533 ALLEN TX
2004-01-09 214-385-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MCKINNEY TX
2004-01-09 214-558-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRANDPRARI TX
2003-12-29 214-241-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7148 ENNIS TX
2003-12-22 214-475-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 GRANDPRARI TX
2003-12-18 214-251-0XXX 0000–0999Assigned METROPCS, INC. 5562 DALLAS TX
2003-12-18 214-251-2XXX 2000–2999Assigned METROPCS, INC. 5562 DALLAS TX
2003-12-09 214-592-4XXX 4000–4999Assigned CSC VOICE, LLC 612K MCKINNEY TX
2003-11-21 214-994-1XXX 1000–1999Assigned SOUTHWESTERN BELL TELEPHONE COMPANY - TX 7726 PLANO TX
2003-11-11 214-227-4XXX 4000–4999Assigned SOUTHWESTERN BELL TELEPHONE COMPANY - TX 7726 PLANO TX
2003-11-11 214-227-5XXX 5000–5999Assigned SOUTHWESTERN BELL TELEPHONE COMPANY - TX 7726 PLANO TX
2003-11-03 214-493-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 IRVING TX
2003-10-27 214-274-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 GRANDPRARI TX
2003-10-27 214-317-6XXX 6000–6999Assigned METROPCS, INC. 5562 GRANDPRARI TX
2003-10-27 214-475-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 GRANDPRARI 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.