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
2021-06-02 915-933-7XXX 7000–7999Assigned ONVOY, LLC - TX 903C CANUTILLO TX
2021-06-01 915-237-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H VINTON TX
2021-06-01 915-277-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H CLINT TX
2021-06-01 915-899-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H FABENS TX
2021-06-01 915-933-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H CANUTILLO TX
2021-06-01 915-944-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H FT HANCOCK TX
2021-05-17 915-455-5XXX 5000–5999Assigned FRACTEL, LLC 965H EL PASO TX
2021-05-05 915-899-9XXX 9000–9999Assigned FRACTEL, LLC 965H FABENS TX
2021-05-04 915-273-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 EL PASO TX
2021-05-04 915-273-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 EL PASO TX
2021-05-04 915-273-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 EL PASO TX
2021-05-04 915-273-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 EL PASO TX
2021-05-04 915-273-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 EL PASO TX
2021-05-04 915-273-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 EL PASO TX
2021-05-04 915-505-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 EL PASO TX
2021-05-04 915-505-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 EL PASO TX
2021-05-04 915-505-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 EL PASO TX
2021-05-04 915-505-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 EL PASO TX
2021-04-18 915-273-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7148 EL PASO TX
2021-04-12 915-277-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F CLINT TX
2021-04-12 915-277-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F CLINT TX
2021-04-12 915-505-5XXX 5000–5999Assigned COMMIO, LLC 939H EL PASO TX
2021-04-07 915-944-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 FT HANCOCK TX
2021-03-31 915-237-4XXX 4000–4999Assigned ONVOY, LLC - TX 903C VINTON TX
2021-03-31 915-237-5XXX 5000–5999Assigned ONVOY, LLC - TX 903C VINTON TX
2021-03-31 915-295-8XXX 8000–8999Assigned ONVOY, LLC - TX 903C CLINT TX
2021-03-31 915-295-9XXX 9000–9999Assigned ONVOY, LLC - TX 903C CLINT TX
2021-03-26 915-895-8XXX 8000–8999Assigned TWILIO INTERNATIONAL, INC. 506J EL PASO TX
2021-03-18 915-273-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 EL PASO TX
2021-03-10 915-273-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 EL PASO TX
2021-03-10 915-273-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 EL PASO TX
2021-03-05 915-955-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 EL PASO TX
2021-03-05 915-955-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 EL PASO TX
2021-03-05 915-955-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 EL PASO TX
2021-03-05 915-955-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 EL PASO TX
2021-03-05 915-955-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 EL PASO TX
2021-03-03 915-955-5XXX 5000–5999Assigned ONVOY, LLC - TX 903C EL PASO TX
2021-03-03 915-955-6XXX 6000–6999Assigned ONVOY, LLC - TX 903C EL PASO TX
2021-03-03 915-955-7XXX 7000–7999Assigned ONVOY, LLC - TX 903C EL PASO TX
2021-03-03 915-955-8XXX 8000–8999Assigned ONVOY, LLC - TX 903C EL PASO TX
2021-03-03 915-955-9XXX 9000–9999Assigned ONVOY, LLC - TX 903C EL PASO TX
2021-03-01 915-272-5XXX 5000–5999Assigned ONVOY, LLC - TX 903C EL PASO TX
2021-02-22 915-295-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F CLINT TX
2021-02-22 915-295-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F CLINT TX
2021-02-22 915-295-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F CLINT TX
2021-02-22 915-944-0XXX 0000–0999Assigned TELNYX LLC 073H FT HANCOCK TX
2021-02-19 915-237-0XXX 0000–0999Assigned IP HORIZON LLC 515J VINTON TX
2021-02-19 915-295-1XXX 1000–1999Assigned IP HORIZON LLC 515J CLINT TX
2021-02-19 915-933-0XXX 0000–0999Assigned IP HORIZON LLC 515J CANUTILLO TX
2021-02-18 915-272-6XXX 6000–6999Assigned METROPCS, INC. 5562 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.