NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

3 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 512
HD CARRIER LLC 2
INTRADO COMMUNICATIONS, LLC 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
2013-02-08 512-862-1XXX 1000–1999Assigned ONVOY, LLC - TX 903C SANGABRIEL TX
2013-02-08 512-898-7XXX 7000–7999Assigned ONVOY, LLC - TX 903C THORNDTHRL TX
2013-02-08 512-942-5XXX 5000–5999Assigned ONVOY, LLC - TX 903C GEORGETOWN TX
2013-02-07 512-954-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 AUSTIN TX
2013-02-07 512-954-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 AUSTIN TX
2013-02-07 512-954-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 AUSTIN TX
2013-02-07 512-954-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 AUSTIN TX
2013-02-07 512-954-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 AUSTIN TX
2013-02-07 512-954-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 AUSTIN TX
2013-02-07 512-954-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 AUSTIN TX
2013-02-05 512-865-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 AUSTIN TX
2013-02-05 512-865-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 AUSTIN TX
2013-02-05 512-865-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 AUSTIN TX
2013-02-05 512-954-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 AUSTIN TX
2013-02-01 512-822-4XXX 4000–4999Assigned FOREMOST TELECOMMUNICATIONS CORPORATION - TX 319D AUSTIN TX
2013-01-16 512-212-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 MARTINDALE TX
2013-01-16 512-430-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 ROCKDALE TX
2013-01-15 512-595-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 TAYLOR TX
2013-01-10 512-865-2XXX 2000–2999Assigned NUSO, LLC 732J AUSTIN TX
2013-01-10 512-865-3XXX 3000–3999Assigned NUSO, LLC 732J AUSTIN TX
2013-01-10 512-865-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 AUSTIN TX
2013-01-10 512-865-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 AUSTIN TX
2013-01-10 512-865-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 AUSTIN TX
2013-01-08 512-955-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 TAYLOR TX
2013-01-08 512-955-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 TAYLOR TX
2012-12-31 512-865-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 AUSTIN TX
2012-12-31 512-865-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 AUSTIN TX
2012-12-31 512-954-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7138 AUSTIN TX
2012-12-20 512-993-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 AUSTIN TX
2012-12-20 512-993-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 AUSTIN TX
2012-12-20 512-993-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 AUSTIN TX
2012-12-20 512-993-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 AUSTIN TX
2012-12-19 512-595-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 TAYLOR TX
2012-12-18 512-774-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 AUSTIN TX
2012-12-18 512-774-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 AUSTIN TX
2012-12-11 512-738-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SAN MARCOS TX
2012-12-06 512-774-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 AUSTIN TX
2012-11-29 512-379-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 LEANDER TX
2012-11-27 512-993-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 AUSTIN TX
2012-11-27 512-993-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 AUSTIN TX
2012-11-27 512-998-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 AUSTIN TX
2012-11-27 512-998-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 AUSTIN TX
2012-11-27 512-998-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 AUSTIN TX
2012-11-27 512-998-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 AUSTIN TX
2012-11-27 512-998-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 AUSTIN TX
2012-11-27 512-998-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 AUSTIN TX
2012-11-27 512-998-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 AUSTIN TX
2012-11-27 512-998-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 AUSTIN TX
2012-11-27 512-998-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 AUSTIN TX
2012-11-27 512-998-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 AUSTIN 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.