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
2019-06-06 915-529-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 EL PASO TX
2019-06-06 915-529-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 EL PASO TX
2019-05-24 915-975-0XXX 0000–0999Assigned ONVOY, LLC - TX 903C EL PASO TX
2019-05-24 915-975-5XXX 5000–5999Assigned ONVOY, LLC - TX 903C EL PASO TX
2019-05-24 915-975-6XXX 6000–6999Assigned ONVOY, LLC - TX 903C EL PASO TX
2019-05-24 915-975-7XXX 7000–7999Assigned ONVOY, LLC - TX 903C EL PASO TX
2019-05-24 915-975-9XXX 9000–9999Assigned ONVOY, LLC - TX 903C EL PASO TX
2019-05-24 915-990-3XXX 3000–3999Assigned ONVOY, LLC - TX 903C EL PASO TX
2019-05-23 915-529-3XXX 3000–3999Assigned FRACTEL, LLC 965H EL PASO TX
2019-05-23 915-529-9XXX 9000–9999Assigned FRACTEL, LLC 965H EL PASO TX
2019-05-23 915-900-0XXX 0000–0999Assigned FRACTEL, LLC 965H FT HANCOCK TX
2019-05-23 915-900-9XXX 9000–9999Assigned FRACTEL, LLC 965H FT HANCOCK TX
2019-05-01 915-671-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 CANUTILLO TX
2019-04-30 915-233-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F CLINT TX
2019-04-24 915-990-1XXX 1000–1999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7148 EL PASO TX
2019-04-23 915-221-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F VINTON TX
2019-04-19 915-205-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F SIERRABLNC TX
2019-04-17 915-671-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F CANUTILLO TX
2019-03-26 915-223-0XXX 0000–0999Assigned ONVOY, LLC - TX 903C FABENS TX
2019-03-26 915-223-1XXX 1000–1999Assigned ONVOY, LLC - TX 903C FABENS TX
2019-03-26 915-288-6XXX 6000–6999Assigned ONVOY, LLC - TX 903C CLINT TX
2019-03-26 915-333-4XXX 4000–4999Assigned ONVOY, LLC - TX 903C FT HANCOCK TX
2019-03-26 915-333-5XXX 5000–5999Assigned ONVOY, LLC - TX 903C FT HANCOCK TX
2019-03-26 915-440-1XXX 1000–1999Assigned ONVOY, LLC - TX 903C CLINT TX
2019-03-26 915-671-8XXX 8000–8999Assigned ONVOY, LLC - TX 903C CANUTILLO TX
2019-03-26 915-671-9XXX 9000–9999Assigned ONVOY, LLC - TX 903C CANUTILLO TX
2019-03-26 915-792-6XXX 6000–6999Assigned ONVOY, LLC - TX 903C VINTON TX
2019-03-19 915-264-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 EL PASO TX
2019-03-19 915-264-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 EL PASO TX
2019-03-14 915-671-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7148 CANUTILLO TX
2019-03-12 915-808-6XXX 6000–6999Assigned METROPCS, INC. 5562 EL PASO TX
2019-03-12 915-808-7XXX 7000–7999Assigned METROPCS, INC. 5562 EL PASO TX
2019-03-12 915-808-8XXX 8000–8999Assigned METROPCS, INC. 5562 EL PASO TX
2019-03-12 915-808-9XXX 9000–9999Assigned METROPCS, INC. 5562 EL PASO TX
2019-03-07 915-516-1XXX 1000–1999Assigned ONVOY, LLC - TX 903C EL PASO TX
2019-03-07 915-516-7XXX 7000–7999Assigned ONVOY, LLC - TX 903C EL PASO TX
2019-03-07 915-516-8XXX 8000–8999Assigned ONVOY, LLC - TX 903C EL PASO TX
2019-03-07 915-516-9XXX 9000–9999Assigned ONVOY, LLC - TX 903C EL PASO TX
2019-03-04 915-516-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7148 EL PASO TX
2019-03-04 915-516-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7148 EL PASO TX
2019-03-04 915-516-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7148 EL PASO TX
2019-03-04 915-516-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7148 EL PASO TX
2019-01-22 915-516-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7148 EL PASO TX
2019-01-11 915-990-4XXX 4000–4999Assigned METROPCS, INC. 5562 EL PASO TX
2019-01-11 915-990-5XXX 5000–5999Assigned METROPCS, INC. 5562 EL PASO TX
2019-01-11 915-990-6XXX 6000–6999Assigned METROPCS, INC. 5562 EL PASO TX
2019-01-11 915-990-7XXX 7000–7999Assigned METROPCS, INC. 5562 EL PASO TX
2019-01-10 915-331-4XXX 4000–4999Assigned ONVOY, LLC - TX 903C EL PASO TX
2019-01-10 915-331-5XXX 5000–5999Assigned ONVOY, LLC - TX 903C EL PASO TX
2019-01-10 915-331-6XXX 6000–6999Assigned ONVOY, LLC - TX 903C 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.