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
2012-09-12 915-500-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 EL PASO TX
2012-08-10 915-288-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 CLINT TX
2012-08-10 915-974-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 CLINT TX
2012-07-20 915-207-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 VINTON TX
2012-07-18 915-400-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F EL PASO TX
2012-07-18 915-400-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F EL PASO TX
2012-07-11 915-730-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 EL PASO TX
2012-07-11 915-730-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 EL PASO TX
2012-07-11 915-730-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 EL PASO TX
2012-07-11 915-730-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 EL PASO TX
2012-07-11 915-730-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 EL PASO TX
2012-06-12 915-245-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F EL PASO TX
2012-06-08 915-215-4XXX 4000–4999Assigned SOUTHWESTERN BELL 9533 EL PASO TX
2012-06-08 915-215-5XXX 5000–5999Assigned SOUTHWESTERN BELL 9533 EL PASO TX
2012-06-08 915-215-6XXX 6000–6999Assigned SOUTHWESTERN BELL 9533 EL PASO TX
2012-06-08 915-215-7XXX 7000–7999Assigned SOUTHWESTERN BELL 9533 EL PASO TX
2012-06-08 915-215-8XXX 8000–8999Assigned SOUTHWESTERN BELL 9533 EL PASO TX
2012-06-05 915-245-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 EL PASO TX
2012-06-05 915-974-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 CLINT TX
2012-05-24 915-730-3XXX 3000–3999Assigned TRANSTELCO, INC. - TX 679E EL PASO TX
2012-05-14 915-400-0XXX 0000–0999Assigned TRANSTELCO, INC. - TX 679E EL PASO TX
2012-05-09 915-400-3XXX 3000–3999Assigned TRANSTELCO, INC. - TX 679E EL PASO TX
2012-03-28 915-500-6XXX 6000–6999Assigned TWC IP ENABLED SERVICES, LLC 793K EL PASO TX
2012-03-27 915-236-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F EL PASO TX
2012-03-27 915-400-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F EL PASO TX
2012-03-21 915-765-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 FABENS TX
2012-03-05 915-245-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EL PASO TX
2012-01-18 915-244-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 EL PASO TX
2012-01-18 915-244-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 EL PASO TX
2012-01-10 915-245-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 EL PASO TX
2012-01-05 915-207-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 VINTON TX
2012-01-05 915-207-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 VINTON TX
2011-12-13 915-243-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 CANUTILLO TX
2011-11-16 915-974-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 CLINT TX
2011-11-11 915-209-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 CLINT TX
2011-10-14 915-792-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F VINTON TX
2011-09-20 915-244-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EL PASO TX
2011-09-20 915-244-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EL PASO TX
2011-09-20 915-244-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EL PASO TX
2011-09-19 915-974-3XXX 3000–3999Assigned ONVOY, LLC - TX 903C CLINT TX
2011-09-12 915-207-7XXX 7000–7999Assigned AT&T ENTERPRISES, LLC 516C VINTON TX
2011-09-01 915-600-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C EL PASO TX
2011-08-03 915-209-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F CLINT TX
2011-07-20 915-244-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 EL PASO TX
2011-07-20 915-244-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 EL PASO TX
2011-07-20 915-244-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 EL PASO TX
2011-07-20 915-244-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 EL PASO TX
2011-07-20 915-244-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 EL PASO TX
2011-07-20 915-245-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 EL PASO TX
2011-07-20 915-245-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 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.