NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

23 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 737
ONVOY, LLC - TX 14
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 4
NEW CINGULAR WIRELESS PCS, LLC - IL 2
EXIANT COMMUNICATIONS LLC 1
BANDWIDTH.COM CLEC, LLC - TX 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
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Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2020-04-08 737-787-2XXX 2000–2999Assigned ONVOY, LLC - TX 903C AUSTIN TX
2020-04-08 737-787-3XXX 3000–3999Assigned ONVOY, LLC - TX 903C AUSTIN TX
2020-04-08 737-787-4XXX 4000–4999Assigned ONVOY, LLC - TX 903C AUSTIN TX
2020-04-08 737-787-5XXX 5000–5999Assigned ONVOY, LLC - TX 903C AUSTIN TX
2020-04-07 737-264-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LOCKHART TX
2020-04-06 737-266-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 SAN MARCOS TX
2020-04-06 737-348-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BASTROP TX
2020-04-06 737-348-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BASTROP TX
2020-04-06 737-348-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BASTROP TX
2020-04-06 737-348-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BASTROP TX
2020-04-06 737-348-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BASTROP TX
2020-03-31 737-257-1XXX 1000–1999Assigned PEERLESS NETWORK OF TEXAS, LLC - TX 177F SANGABRIEL TX
2020-03-31 737-266-0XXX 0000–0999Assigned PEERLESS NETWORK OF TEXAS, LLC - TX 177F SAN MARCOS TX
2020-03-30 737-787-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F AUSTIN TX
2020-03-30 737-787-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F AUSTIN TX
2020-03-30 737-787-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F AUSTIN TX
2020-03-25 737-610-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 AUSTIN TX
2020-03-25 737-900-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 AUSTIN TX
2020-03-25 737-900-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 AUSTIN TX
2020-03-25 737-900-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 AUSTIN TX
2020-03-25 737-900-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 AUSTIN TX
2020-03-25 737-900-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 AUSTIN TX
2020-03-18 737-233-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 ELGIN TX
2020-03-18 737-251-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 BURNET TX
2020-03-18 737-251-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 BURNET TX
2020-03-18 737-267-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 AUSTIN TX
2020-03-18 737-267-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 AUSTIN TX
2020-03-18 737-267-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 AUSTIN TX
2020-03-18 737-348-7XXX 7000–7999Assigned METROPCS, INC. 5562 BASTROP TX
2020-03-10 737-255-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 AUSTIN TX
2020-03-06 737-973-4XXX 4000–4999Assigned ONVOY, LLC - TX 903C BRIGGS TX
2020-03-06 737-973-5XXX 5000–5999Assigned ONVOY, LLC - TX 903C BRIGGS TX
2020-02-28 737-787-9XXX 9000–9999Assigned HD CARRIER LLC 321J AUSTIN TX
2020-02-25 737-252-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F LIBERTY HL TX
2020-02-24 737-758-1XXX 1000–1999Assigned PEERLESS NETWORK OF TEXAS, LLC - TX 177F KEMPNER TX
2020-02-21 737-299-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LAMPASAS TX
2020-02-21 737-299-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LAMPASAS TX
2020-02-21 737-299-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LAMPASAS TX
2020-02-19 737-267-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 AUSTIN TX
2020-02-19 737-267-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 AUSTIN TX
2020-02-19 737-267-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 AUSTIN TX
2020-02-19 737-267-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 AUSTIN TX
2020-02-19 737-267-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 AUSTIN TX
2020-02-14 737-273-1XXX 1000–1999Assigned ONVOY, LLC - TX 903C AUSTIN TX
2020-02-14 737-273-7XXX 7000–7999Assigned ONVOY, LLC - TX 903C AUSTIN TX
2020-02-14 737-273-8XXX 8000–8999Assigned ONVOY, LLC - TX 903C AUSTIN TX
2020-02-14 737-273-9XXX 9000–9999Assigned ONVOY, LLC - TX 903C AUSTIN TX
2020-02-07 737-510-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BERTRAM TX
2020-02-05 737-273-0XXX 0000–0999Assigned PEERLESS NETWORK OF TEXAS, LLC - TX 177F AUSTIN TX
2020-01-24 737-758-8XXX 8000–8999Assigned METROPCS, INC. 5562 KEMPNER 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.