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
2020-03-02 915-975-2XXX 2000–2999Assigned ONVOY, LLC - TX 903C EL PASO TX
2020-03-02 915-975-3XXX 3000–3999Assigned ONVOY, LLC - TX 903C EL PASO TX
2020-02-26 915-710-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 EL PASO TX
2020-02-26 915-710-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 EL PASO TX
2020-02-26 915-710-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 EL PASO TX
2020-02-26 915-710-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 EL PASO TX
2020-02-26 915-710-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 EL PASO TX
2020-02-21 915-221-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 VINTON TX
2020-02-21 915-221-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 VINTON TX
2020-02-21 915-221-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 VINTON TX
2020-02-19 915-264-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7148 EL PASO TX
2020-02-19 915-264-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7148 EL PASO TX
2020-01-31 915-233-5XXX 5000–5999Assigned TWC IP ENABLED SERVICES, LLC 793K CLINT TX
2020-01-08 915-979-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 EL PASO TX
2020-01-08 915-979-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 EL PASO TX
2020-01-08 915-979-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 EL PASO TX
2019-12-19 915-615-1XXX 1000–1999Assigned ONVOY, LLC - TX 903C EL PASO TX
2019-12-19 915-615-2XXX 2000–2999Assigned ONVOY, LLC - TX 903C EL PASO TX
2019-12-02 915-265-1XXX 1000–1999Assigned TELNYX LLC 073H EL PASO TX
2019-11-19 915-621-1XXX 1000–1999Assigned ONVOY, LLC - TX 903C EL PASO TX
2019-11-19 915-621-2XXX 2000–2999Assigned ONVOY, LLC - TX 903C EL PASO TX
2019-11-19 915-621-5XXX 5000–5999Assigned ONVOY, LLC - TX 903C EL PASO TX
2019-11-06 915-233-3XXX 3000–3999Assigned ONVOY, LLC - TX 903C CLINT TX
2019-11-06 915-233-4XXX 4000–4999Assigned ONVOY, LLC - TX 903C CLINT TX
2019-10-25 915-615-4XXX 4000–4999Assigned ONVOY, LLC - TX 903C EL PASO TX
2019-10-25 915-615-5XXX 5000–5999Assigned ONVOY, LLC - TX 903C EL PASO TX
2019-10-25 915-615-6XXX 6000–6999Assigned ONVOY, LLC - TX 903C EL PASO TX
2019-10-25 915-710-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H EL PASO TX
2019-10-09 915-223-2XXX 2000–2999Assigned ONVOY, LLC - TX 903C FABENS TX
2019-10-09 915-223-3XXX 3000–3999Assigned ONVOY, LLC - TX 903C FABENS TX
2019-10-09 915-233-1XXX 1000–1999Assigned ONVOY, LLC - TX 903C CLINT TX
2019-10-09 915-233-2XXX 2000–2999Assigned ONVOY, LLC - TX 903C CLINT TX
2019-10-09 915-642-0XXX 0000–0999Assigned ONVOY, LLC - TX 903C CANUTILLO TX
2019-10-09 915-671-2XXX 2000–2999Assigned ONVOY, LLC - TX 903C CANUTILLO TX
2019-10-08 915-221-1XXX 1000–1999Assigned ONVOY, LLC - TX 903C VINTON TX
2019-10-08 915-221-2XXX 2000–2999Assigned ONVOY, LLC - TX 903C VINTON TX
2019-10-08 915-900-1XXX 1000–1999Assigned ONVOY, LLC - TX 903C FT HANCOCK TX
2019-10-08 915-900-2XXX 2000–2999Assigned ONVOY, LLC - TX 903C FT HANCOCK TX
2019-09-26 915-224-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 EL PASO TX
2019-09-26 915-224-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 EL PASO TX
2019-09-26 915-224-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 EL PASO TX
2019-09-26 915-224-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 EL PASO TX
2019-09-26 915-224-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 EL PASO TX
2019-09-26 915-224-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 EL PASO TX
2019-08-21 915-979-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 EL PASO TX
2019-08-21 915-979-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 EL PASO TX
2019-08-21 915-979-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 EL PASO TX
2019-08-21 915-979-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 EL PASO TX
2019-08-21 915-979-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 EL PASO TX
2019-06-06 915-529-6XXX 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.