NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

1 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 972
NEW CINGULAR WIRELESS PCS, LLC - IL 1
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
2003-12-17 972-693-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 GRANDPRARI TX
2003-12-17 972-693-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 GRANDPRARI TX
2003-12-17 972-693-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 GRANDPRARI TX
2003-12-17 972-693-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 GRANDPRARI TX
2003-12-17 972-693-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 GRANDPRARI TX
2003-12-17 972-693-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 GRANDPRARI TX
2003-12-10 972-961-8XXX 8000–8999Assigned ONVOY, LLC - TX 903C ROCKWALL TX
2003-12-04 972-369-8XXX 8000–8999Assigned ONVOY, LLC - TX 903C MCKINNEY TX
2003-10-06 972-723-4XXX 4000–4999Assigned ONVOY, LLC - TX 903C MIDLOTHIAN TX
2003-10-01 972-200-8XXX 8000–8999Assigned ONVOY, LLC - TX 903C SEAGOVILLE TX
2003-10-01 972-210-8XXX 8000–8999Assigned ONVOY, LLC - TX 903C TERRELL TX
2003-10-01 972-954-8XXX 8000–8999Assigned ONVOY, LLC - TX 903C ALLEN TX
2003-09-04 972-624-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 FRISCO TX
2003-07-14 972-832-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MCKINNEY TX
2003-07-14 972-832-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MCKINNEY TX
2003-07-14 972-832-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MCKINNEY TX
2003-07-14 972-832-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MCKINNEY TX
2003-07-14 972-832-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MCKINNEY TX
2003-06-26 972-213-9XXX 9000–9999Assigned ONVOY, LLC - TX 903C GRANDPRARI TX
2003-06-24 972-346-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 PROSPER TX
2003-06-24 972-427-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 CRANDALL TX
2003-06-24 972-637-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 CEDAR HILL TX
2003-06-24 972-921-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WAXAHACHIE TX
2003-06-24 972-921-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WAXAHACHIE TX
2003-06-24 972-921-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WAXAHACHIE TX
2003-06-23 972-984-1XXX 1000–1999Assigned SOUTHWESTERN BELL 9533 MCKINNEY TX
2003-06-02 972-963-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 FRISCO TX
2003-05-27 972-646-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 BARDWELL TX
2003-04-03 972-921-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WAXAHACHIE TX
2003-03-25 972-210-4XXX 4000–4999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J TERRELL TX
2003-03-05 972-765-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CEDAR HILL TX
2003-03-05 972-765-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CEDAR HILL TX
2003-03-05 972-765-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CEDAR HILL TX
2003-03-05 972-765-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CEDAR HILL TX
2003-03-05 972-765-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CEDAR HILL TX
2003-03-05 972-765-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CEDAR HILL TX
2003-03-05 972-765-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CEDAR HILL TX
2003-03-05 972-765-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CEDAR HILL TX
2003-03-05 972-765-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CEDAR HILL TX
2003-03-05 972-765-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CEDAR HILL TX
2003-02-14 972-963-1XXX 1000–1999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 FRISCO TX
2003-02-14 972-963-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 FRISCO TX
2002-12-19 972-200-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 SEAGOVILLE TX
2002-12-19 972-535-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 PLANO TX
2002-11-19 972-346-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 PROSPER TX
2002-11-18 972-351-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 WAXAHACHIE TX
2002-11-14 972-963-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7148 FRISCO TX
2002-11-07 972-534-0XXX 0000–0999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 DLFTWTARPT TX
2002-11-07 972-829-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 LEWISVILLE TX
2002-10-23 972-526-1XXX 1000–1999Assigned SOUTHWESTERN BELL TELEPHONE COMPANY - TX 7726 PLANO 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.