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
TON80 COMMUNICATIONS, LLC 29
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
2022-03-04 575-757-5XXX 5000–5999Assigned TON80 COMMUNICATIONS, LLC 516J SOCORRO NM
2022-03-03 575-299-9XXX 9000–9999Assigned TON80 COMMUNICATIONS, LLC 516J DEMING NM
2022-03-03 575-966-6XXX 6000–6999Assigned TON80 COMMUNICATIONS, LLC 516J LA MESA NM
2022-03-01 575-334-8XXX 8000–8999Assigned TON80 COMMUNICATIONS, LLC 516J CHAPARRAL NM
2022-03-01 575-599-9XXX 9000–9999Assigned TON80 COMMUNICATIONS, LLC 516J RED RIVER NM
2022-03-01 575-916-8XXX 8000–8999Assigned TON80 COMMUNICATIONS, LLC 516J GALLINA NM
2022-02-28 575-247-4XXX 4000–4999Assigned TON80 COMMUNICATIONS, LLC 516J ARTESIA NM
2022-02-28 575-333-8XXX 8000–8999Assigned TON80 COMMUNICATIONS, LLC 516J LOVINGTON NM
2022-02-28 575-999-3XXX 3000–3999Assigned TON80 COMMUNICATIONS, LLC 516J TAOS NM
2022-02-25 575-292-5XXX 5000–5999Assigned TON80 COMMUNICATIONS, LLC 516J TIERRAAMRL NM
2022-02-24 575-688-8XXX 8000–8999Assigned TON80 COMMUNICATIONS, LLC 516J CRLSBACRNS NM
2022-02-24 575-722-2XXX 2000–2999Assigned TON80 COMMUNICATIONS, LLC 516J CANJILON NM
2022-02-24 575-788-8XXX 8000–8999Assigned TON80 COMMUNICATIONS, LLC 516J BAYARD NM
2022-02-23 575-266-5XXX 5000–5999Assigned TON80 COMMUNICATIONS, LLC 516J CARLSBAD NM
2022-02-23 575-283-7XXX 7000–7999Assigned TON80 COMMUNICATIONS, LLC 516J ANTHONY NM
2022-02-23 575-465-3XXX 3000–3999Assigned TON80 COMMUNICATIONS, LLC 516J ROSWELL NM
2022-02-02 575-463-6XXX 6000–6999Assigned TON80 COMMUNICATIONS, LLC 516J LAS CRUCES NM
2022-01-14 575-327-6XXX 6000–6999Assigned TON80 COMMUNICATIONS, LLC 516J CUBA NM
2022-01-14 575-467-8XXX 8000–8999Assigned TON80 COMMUNICATIONS, LLC 516J ANGEL FIRE NM
2022-01-11 575-293-7XXX 7000–7999Assigned TON80 COMMUNICATIONS, LLC 516J PENASCO NM
2022-01-11 575-426-3XXX 3000–3999Assigned TON80 COMMUNICATIONS, LLC 516J SPRINGER NM
2022-01-11 575-466-3XXX 3000–3999Assigned TON80 COMMUNICATIONS, LLC 516J JEMEZ SPG NM
2022-01-11 575-663-7XXX 7000–7999Assigned TON80 COMMUNICATIONS, LLC 516J SAN YSIDRO NM
2022-01-10 575-832-4XXX 4000–4999Assigned TON80 COMMUNICATIONS, LLC 516J TUCUMCARI NM
2022-01-09 575-842-3XXX 3000–3999Assigned TON80 COMMUNICATIONS, LLC 516J MAGDALENA NM
2021-06-22 575-346-3XXX 3000–3999Assigned TON80 COMMUNICATIONS, LLC 516J CORONA NM
2021-06-17 575-766-4XXX 4000–4999Assigned TON80 COMMUNICATIONS, LLC 516J EUNICE NM
2021-06-11 575-248-9XXX 9000–9999Assigned TON80 COMMUNICATIONS, LLC 516J HATCH NM
2021-04-07 575-837-4XXX 4000–4999Assigned TON80 COMMUNICATIONS, LLC 516J ALAMOGORDO 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.