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
2023-03-27 945-425-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 LEWISVILLE TX
2023-03-22 945-292-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 DALLAS TX
2023-03-16 945-292-0XXX 0000–0999Assigned FIVE9, INC. 598J DALLAS TX
2023-02-28 945-286-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRANDPRARI TX
2023-02-28 945-290-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRANDPRARI TX
2023-02-28 945-290-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRANDPRARI TX
2023-02-28 945-290-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRANDPRARI TX
2023-02-28 945-290-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRANDPRARI TX
2023-02-28 945-290-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRANDPRARI TX
2023-02-28 945-290-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRANDPRARI TX
2023-02-28 945-290-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRANDPRARI TX
2023-02-28 945-290-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRANDPRARI TX
2023-02-28 945-290-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRANDPRARI TX
2023-02-28 945-290-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRANDPRARI TX
2023-02-24 945-288-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F IRVING TX
2023-02-24 945-288-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F IRVING TX
2023-02-24 945-288-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F IRVING TX
2023-02-24 945-288-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F IRVING TX
2023-02-17 945-205-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7148 BLUE RIDGE TX
2023-02-08 945-237-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MCKINNEY TX
2023-01-30 945-289-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FRISCO TX
2023-01-30 945-289-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FRISCO TX
2023-01-30 945-289-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FRISCO TX
2023-01-30 945-289-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FRISCO TX
2023-01-30 945-289-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FRISCO TX
2023-01-30 945-289-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FRISCO TX
2023-01-30 945-289-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FRISCO TX
2023-01-30 945-289-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FRISCO TX
2023-01-30 945-289-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FRISCO TX
2023-01-30 945-289-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FRISCO TX
2023-01-26 945-202-8XXX 8000–8999Assigned TELNYX LLC 073H NEVADA TX
2023-01-26 945-242-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 FORNEY TX
2023-01-26 945-242-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 FORNEY TX
2023-01-26 945-386-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 FORNEY TX
2023-01-26 945-386-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 FORNEY TX
2023-01-26 945-677-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7148 PROSPER TX
2023-01-26 945-677-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7148 PROSPER TX
2023-01-26 945-677-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7148 PROSPER TX
2023-01-26 945-677-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7148 PROSPER TX
2023-01-26 945-677-9XXX 9000–9999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7148 PROSPER TX
2023-01-26 945-678-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7148 MCKINNEY TX
2023-01-26 945-678-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7148 MCKINNEY TX
2023-01-26 945-678-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7148 MCKINNEY TX
2023-01-26 945-678-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7148 MCKINNEY TX
2023-01-26 945-678-9XXX 9000–9999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7148 MCKINNEY TX
2023-01-25 945-215-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F ALLEN TX
2023-01-25 945-215-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F ALLEN TX
2023-01-25 945-215-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F ALLEN TX
2023-01-25 945-945-2XXX 2000–2999Assigned USFON, INC. - TX 473F DALLAS TX
2023-01-25 945-945-3XXX 3000–3999Assigned USFON, INC. - TX 473F DALLAS 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.