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
2013-09-25 512-846-9XXX 9000–9999Assigned PEERLESS NETWORK OF TEXAS, LLC - TX 177F HUTTO TX
2013-09-25 512-995-7XXX 7000–7999Assigned PEERLESS NETWORK OF TEXAS, LLC - TX 177F LOCKHART TX
2013-09-25 512-999-7XXX 7000–7999Assigned PEERLESS NETWORK OF TEXAS, LLC - TX 177F BASTROP TX
2013-09-09 512-986-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 LEANDER TX
2013-09-04 512-980-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 MCDADE TX
2013-08-28 512-375-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 AUSTIN TX
2013-08-28 512-420-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 AUSTIN TX
2013-08-28 512-649-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 AUSTIN TX
2013-08-28 512-962-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 AUSTIN TX
2013-08-28 512-962-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 AUSTIN TX
2013-08-28 512-962-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 AUSTIN TX
2013-08-28 512-987-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 AUSTIN TX
2013-08-16 512-253-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F PAIGE TX
2013-08-16 512-842-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F WIMBERLEY TX
2013-08-05 512-234-4XXX 4000–4999Assigned ONVOY, LLC - TX 903C BURNET TX
2013-08-02 512-778-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 LIBERTY HL TX
2013-07-31 512-993-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7138 AUSTIN TX
2013-07-24 512-213-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 LOCKHART TX
2013-07-24 512-375-3XXX 3000–3999Assigned ONVOY, LLC - TX 903C AUSTIN TX
2013-07-24 512-375-4XXX 4000–4999Assigned ONVOY, LLC - TX 903C AUSTIN TX
2013-07-10 512-285-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ELGIN TX
2013-07-10 512-375-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 AUSTIN TX
2013-07-10 512-375-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 AUSTIN TX
2013-07-10 512-391-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 AUSTIN TX
2013-07-10 512-420-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 AUSTIN TX
2013-07-10 512-457-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 AUSTIN TX
2013-07-10 512-481-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 AUSTIN TX
2013-07-10 512-876-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GEORGETOWN TX
2013-07-09 512-987-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 AUSTIN TX
2013-06-28 512-962-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 AUSTIN TX
2013-06-28 512-962-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 AUSTIN TX
2013-06-28 512-987-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 AUSTIN TX
2013-06-28 512-987-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 AUSTIN TX
2013-06-27 512-420-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J AUSTIN TX
2013-06-27 512-420-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J AUSTIN TX
2013-06-26 512-420-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 AUSTIN TX
2013-06-20 512-375-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 AUSTIN TX
2013-06-20 512-375-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 AUSTIN TX
2013-06-20 512-375-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 AUSTIN TX
2013-06-20 512-375-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 AUSTIN TX
2013-06-20 512-375-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 AUSTIN TX
2013-06-18 512-667-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 SAN MARCOS TX
2013-06-18 512-872-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 AUSTIN TX
2013-06-18 512-872-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 AUSTIN TX
2013-06-18 512-872-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 AUSTIN TX
2013-06-18 512-872-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 AUSTIN TX
2013-06-18 512-872-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 AUSTIN TX
2013-06-18 512-872-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 AUSTIN TX
2013-06-18 512-872-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 AUSTIN TX
2013-06-18 512-872-9XXX 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.