NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

2 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

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 915
PEERLESS NETWORK OF TEXAS, LLC - TX 1
8X8, INC. 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
2014-03-18 915-701-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F EL PASO TX
2014-03-17 915-243-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F CANUTILLO TX
2014-03-04 915-213-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 EL PASO TX
2014-03-04 915-213-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 EL PASO TX
2014-02-27 915-701-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 EL PASO TX
2014-02-25 915-207-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F VINTON TX
2014-01-30 915-701-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 EL PASO TX
2014-01-30 915-701-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 EL PASO TX
2014-01-30 915-701-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 EL PASO TX
2014-01-27 915-701-0XXX 0000–0999Assigned TRANSTELCO, INC. - TX 679E EL PASO TX
2013-12-27 915-228-9XXX 9000–9999Assigned AT&T ENTERPRISES, LLC 516C EL PASO TX
2013-12-12 915-205-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 SIERRABLNC TX
2013-12-04 915-701-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 EL PASO TX
2013-11-21 915-243-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F CANUTILLO TX
2013-11-14 915-703-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F CLINT TX
2013-11-14 915-703-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F CLINT TX
2013-11-11 915-701-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 EL PASO TX
2013-11-11 915-701-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 EL PASO TX
2013-11-11 915-701-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 EL PASO TX
2013-11-06 915-321-0XXX 0000–0999Assigned METROPCS, INC. 5562 CANUTILLO TX
2013-11-06 915-321-2XXX 2000–2999Assigned METROPCS, INC. 5562 CANUTILLO TX
2013-10-28 915-703-0XXX 0000–0999Assigned METROPCS, INC. 5562 CLINT TX
2013-10-28 915-703-9XXX 9000–9999Assigned METROPCS, INC. 5562 CLINT TX
2013-10-28 915-803-0XXX 0000–0999Assigned METROPCS, INC. 5562 EL PASO TX
2013-10-28 915-803-1XXX 1000–1999Assigned METROPCS, INC. 5562 EL PASO TX
2013-10-28 915-803-2XXX 2000–2999Assigned METROPCS, INC. 5562 EL PASO TX
2013-10-28 915-803-3XXX 3000–3999Assigned METROPCS, INC. 5562 EL PASO TX
2013-10-28 915-803-4XXX 4000–4999Assigned METROPCS, INC. 5562 EL PASO TX
2013-10-28 915-803-5XXX 5000–5999Assigned METROPCS, INC. 5562 EL PASO TX
2013-10-28 915-803-6XXX 6000–6999Assigned METROPCS, INC. 5562 EL PASO TX
2013-10-28 915-803-7XXX 7000–7999Assigned METROPCS, INC. 5562 EL PASO TX
2013-10-28 915-803-8XXX 8000–8999Assigned METROPCS, INC. 5562 EL PASO TX
2013-10-28 915-803-9XXX 9000–9999Assigned METROPCS, INC. 5562 EL PASO TX
2013-10-18 915-228-0XXX 0000–0999Assigned METROPCS, INC. 5562 EL PASO TX
2013-10-18 915-228-1XXX 1000–1999Assigned METROPCS, INC. 5562 EL PASO TX
2013-10-18 915-228-3XXX 3000–3999Assigned ONVOY, LLC - TX 903C EL PASO TX
2013-10-18 915-228-4XXX 4000–4999Assigned ONVOY, LLC - TX 903C EL PASO TX
2013-10-18 915-228-5XXX 5000–5999Assigned METROPCS, INC. 5562 EL PASO TX
2013-10-18 915-228-6XXX 6000–6999Assigned METROPCS, INC. 5562 EL PASO TX
2013-10-18 915-228-7XXX 7000–7999Assigned METROPCS, INC. 5562 EL PASO TX
2013-10-18 915-243-8XXX 8000–8999Assigned METROPCS, INC. 5562 CANUTILLO TX
2013-10-18 915-243-9XXX 9000–9999Assigned METROPCS, INC. 5562 CANUTILLO TX
2013-10-18 915-288-2XXX 2000–2999Assigned ONVOY, LLC - TX 903C CLINT TX
2013-10-18 915-440-3XXX 3000–3999Assigned ONVOY, LLC - TX 903C CLINT TX
2013-10-18 915-974-6XXX 6000–6999Assigned METROPCS, INC. 5562 CLINT TX
2013-10-17 915-228-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 EL PASO TX
2013-10-10 915-218-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 EL PASO TX
2013-10-10 915-218-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 EL PASO TX
2013-10-10 915-218-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 EL PASO TX
2013-10-10 915-218-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 EL PASO TX

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.