NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

51 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 945
ONVOY, LLC - TX 13
NEW CINGULAR WIRELESS PCS, LLC - IL 12
TELEPORT COMMUNICATIONS AMERICA, LLC - TX 10
BANDWIDTH.COM CLEC, LLC - TX 8
E. RITTER COMMUNICATIONS, LLC 4
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
2021-08-12 945-209-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 GRANDPRARI TX
2021-08-12 945-209-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 GRANDPRARI TX
2021-08-12 945-209-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 GRANDPRARI TX
2021-08-12 945-209-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 GRANDPRARI TX
2021-08-12 945-209-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 GRANDPRARI TX
2021-08-12 945-209-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 GRANDPRARI TX
2021-08-12 945-209-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 GRANDPRARI TX
2021-08-12 945-209-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 GRANDPRARI TX
2021-08-12 945-209-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 GRANDPRARI TX
2021-08-11 945-208-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 GRANDPRARI TX
2021-08-11 945-208-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 GRANDPRARI TX
2021-08-11 945-208-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 GRANDPRARI TX
2021-08-11 945-208-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 GRANDPRARI TX
2021-08-11 945-208-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 GRANDPRARI TX
2021-08-11 945-208-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 GRANDPRARI TX
2021-08-11 945-208-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 GRANDPRARI TX
2021-08-11 945-208-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 GRANDPRARI TX
2021-08-11 945-208-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 GRANDPRARI TX
2021-08-11 945-208-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 GRANDPRARI TX
2021-08-11 945-899-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 GRANDPRARI TX
2021-08-11 945-899-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 GRANDPRARI TX
2021-08-06 945-212-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F CEDAR HILL TX
2021-08-06 945-212-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F CEDAR HILL TX
2021-08-06 945-348-1XXX 1000–1999Assigned COMMIO, LLC 939H FRISCO TX
2021-08-06 945-348-2XXX 2000–2999Assigned COMMIO, LLC 939H FRISCO TX
2021-08-06 945-699-4XXX 4000–4999Assigned COMMIO, LLC 939H MCKINNEY TX
2021-08-06 945-699-5XXX 5000–5999Assigned COMMIO, LLC 939H MCKINNEY TX
2021-08-06 945-699-6XXX 6000–6999Assigned COMMIO, LLC 939H MCKINNEY TX
2021-08-06 945-699-7XXX 7000–7999Assigned COMMIO, LLC 939H MCKINNEY TX
2021-08-04 945-500-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7148 CARROLLTON TX
2021-08-04 945-500-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7148 CARROLLTON TX
2021-07-29 945-500-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CARROLLTON TX
2021-07-29 945-500-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CARROLLTON TX
2021-07-29 945-500-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CARROLLTON TX
2021-07-28 945-899-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F GRANDPRARI TX
2021-07-28 945-899-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F GRANDPRARI TX
2021-07-28 945-899-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F GRANDPRARI TX
2021-07-27 945-207-7XXX 7000–7999Assigned ONVOY, LLC - TX 903C PROSPER TX
2021-07-27 945-207-8XXX 8000–8999Assigned ONVOY, LLC - TX 903C PROSPER TX
2021-07-27 945-348-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F FRISCO TX
2021-07-27 945-348-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F FRISCO TX
2021-07-27 945-348-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F FRISCO TX
2021-07-27 945-348-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F FRISCO TX
2021-07-27 945-348-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F FRISCO TX
2021-07-23 945-542-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 WAXAHACHIE TX
2021-07-23 945-788-3XXX 3000–3999Assigned ONVOY, LLC - TX 903C WILMER TX
2021-07-21 945-356-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F DLFTWTARPT TX
2021-07-20 945-206-6XXX 6000–6999Assigned ONVOY, LLC - TX 903C FARMERSVL TX
2021-07-20 945-206-7XXX 7000–7999Assigned ONVOY, LLC - TX 903C FARMERSVL TX
2021-07-20 945-666-2XXX 2000–2999Assigned ONVOY, LLC - TX 903C PALMER 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.