NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

0 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, all time — NPA 575
BANDWIDTH.COM CLEC, LLC - NM 171
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
2026-08-14 575-515-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NM 123F LAS CRUCES NM
2026-06-15 575-331-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - NM 123F LAS CRUCES NM
2026-05-28 575-688-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NM 123F CRLSBACRNS NM
2026-05-07 575-204-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NM 123F CLOVIS NM
2026-05-07 575-230-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - NM 123F ROSWELL NM
2026-04-06 575-353-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - NM 123F LAS CRUCES NM
2025-11-06 575-306-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NM 123F ROSWELL NM
2025-11-06 575-331-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - NM 123F LAS CRUCES NM
2024-12-06 575-219-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - NM 123F CLOVIS NM
2024-12-06 575-271-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NM 123F CLOVIS NM
2023-09-25 575-777-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - NM 123F CLOVIS NM
2022-10-26 575-286-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - NM 123F ALAMOGORDO NM
2022-10-25 575-266-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - NM 123F CARLSBAD NM
2022-09-07 575-286-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NM 123F ALAMOGORDO NM
2022-08-25 575-286-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NM 123F ALAMOGORDO NM
2022-07-28 575-665-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - NM 123F HOBBS NM
2022-07-28 575-665-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - NM 123F HOBBS NM
2022-07-27 575-465-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NM 123F ROSWELL NM
2022-07-27 575-465-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - NM 123F ROSWELL NM
2022-02-25 575-747-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - NM 123F SOCORRO NM
2022-01-28 575-747-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NM 123F SOCORRO NM
2022-01-26 575-287-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NM 123F JAL NM
2021-12-07 575-243-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - NM 123F ARTESIA NM
2021-12-07 575-284-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - NM 123F SILVERCITY NM
2021-11-22 575-283-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NM 123F ANTHONY NM
2021-11-17 575-280-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NM 123F QUESTA NM
2021-11-15 575-247-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - NM 123F ARTESIA NM
2021-11-15 575-284-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - NM 123F SILVERCITY NM
2021-07-22 575-727-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - NM 123F BAYARD NM
2021-07-19 575-243-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - NM 123F ARTESIA NM
2020-12-28 575-249-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NM 123F LAS CRUCES NM
2020-12-28 575-249-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NM 123F LAS CRUCES NM
2020-12-28 575-249-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - NM 123F LAS CRUCES NM
2020-12-28 575-249-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - NM 123F LAS CRUCES NM
2020-12-28 575-249-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - NM 123F LAS CRUCES NM
2020-12-28 575-249-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - NM 123F LAS CRUCES NM
2020-12-21 575-215-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - NM 123F ANTHONY NM
2020-08-18 575-999-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - NM 123F TAOS NM
2019-05-14 575-223-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - NM 123F TRUTHCQNCS NM
2018-11-08 575-573-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - NM 123F CRLSBACRNS NM
2018-09-10 575-300-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - NM 123F LA MESA NM
2018-05-10 575-242-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NM 123F SILVERCITY NM
2018-03-15 575-733-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NM 123F RATON NM
2018-03-15 575-733-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NM 123F RATON NM
2017-07-24 575-530-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NM 123F CLOVIS NM
2016-06-24 575-659-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NM 123F LOVINGTON NM
2016-06-22 575-236-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - NM 123F CARLSBAD NM
2016-06-22 575-366-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - NM 123F CLOVIS NM
2016-06-20 575-223-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NM 123F TRUTHCQNCS NM
2015-10-20 575-222-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NM 123F LAS CRUCES NM

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.