NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

2 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 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
2007-07-16 915-412-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 EL PASO TX
2007-07-16 915-412-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 EL PASO TX
2007-07-09 915-202-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 EL PASO TX
2007-07-09 915-202-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 EL PASO TX
2007-07-09 915-202-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 EL PASO TX
2007-07-09 915-202-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 EL PASO TX
2007-07-09 915-202-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 EL PASO TX
2007-07-09 915-202-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 EL PASO TX
2007-07-09 915-202-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 EL PASO TX
2007-07-09 915-202-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 EL PASO TX
2007-07-09 915-202-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 EL PASO TX
2007-06-19 915-319-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 EL PASO TX
2007-06-19 915-929-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EL PASO TX
2007-06-19 915-929-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EL PASO TX
2007-06-14 915-356-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EL PASO TX
2007-06-14 915-356-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EL PASO TX
2007-06-13 915-238-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 EL PASO TX
2007-06-13 915-238-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 EL PASO TX
2007-06-06 915-321-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7148 CANUTILLO TX
2007-05-17 915-877-8XXX 8000–8999Assigned LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 7263 CANUTILLO TX
2007-05-15 915-238-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 EL PASO TX
2007-05-14 915-317-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 EL PASO TX
2007-05-14 915-317-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 EL PASO TX
2007-05-04 915-412-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EL PASO TX
2007-05-04 915-412-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EL PASO TX
2007-05-04 915-412-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EL PASO TX
2007-05-04 915-412-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EL PASO TX
2007-05-04 915-412-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EL PASO TX
2007-04-18 915-238-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 EL PASO TX
2007-04-11 915-356-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 EL PASO TX
2007-03-29 915-999-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EL PASO TX
2007-03-29 915-999-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EL PASO TX
2007-03-29 915-999-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EL PASO TX
2007-03-29 915-999-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EL PASO TX
2007-03-29 915-999-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EL PASO TX
2007-03-29 915-999-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EL PASO TX
2007-03-29 915-999-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EL PASO TX
2007-03-29 915-999-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EL PASO TX
2007-03-29 915-999-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EL PASO TX
2007-03-28 915-307-8XXX 8000–8999Assigned TWC IP ENABLED SERVICES, LLC 793K EL PASO TX
2007-03-16 915-356-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 EL PASO TX
2007-03-16 915-356-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 EL PASO TX
2007-03-05 915-356-3XXX 3000–3999Assigned LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 7263 EL PASO TX
2007-02-28 915-222-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EL PASO TX
2007-02-28 915-222-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EL PASO TX
2007-02-28 915-222-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EL PASO TX
2007-02-28 915-222-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EL PASO TX
2007-02-28 915-222-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EL PASO TX
2007-02-28 915-222-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EL PASO TX
2007-02-21 915-219-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EL PASO 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.