NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

8 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 575
T-MOBILE USA, INC. 6
ONVOY, LLC - NM 1
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 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
2021-02-05 575-400-8XXX 8000–8999Assigned ONVOY, LLC - NM 206F LINDRITH NM
2021-02-05 575-440-6XXX 6000–6999Assigned ONVOY, LLC - NM 206F RED RIVER NM
2021-02-05 575-440-8XXX 8000–8999Assigned ONVOY, LLC - NM 206F RED RIVER NM
2021-02-05 575-592-3XXX 3000–3999Assigned ONVOY, LLC - NM 206F DEMING NM
2021-02-05 575-592-4XXX 4000–4999Assigned ONVOY, LLC - NM 206F DEMING NM
2021-02-05 575-651-4XXX 4000–4999Assigned ONVOY, LLC - NM 206F RUIDOSODWN NM
2021-02-05 575-651-7XXX 7000–7999Assigned ONVOY, LLC - NM 206F RUIDOSODWN NM
2021-02-05 575-810-4XXX 4000–4999Assigned ONVOY, LLC - NM 206F ARTESIA NM
2021-02-03 575-210-9XXX 9000–9999Assigned ONVOY, LLC - NM 206F TUCUMCARI NM
2021-02-03 575-216-1XXX 1000–1999Assigned ONVOY, LLC - NM 206F ANGEL FIRE NM
2021-02-03 575-216-9XXX 9000–9999Assigned ONVOY, LLC - NM 206F ANGEL FIRE NM
2021-02-03 575-242-6XXX 6000–6999Assigned ONVOY, LLC - NM 206F SILVERCITY NM
2021-02-03 575-242-8XXX 8000–8999Assigned ONVOY, LLC - NM 206F SILVERCITY NM
2021-02-03 575-255-9XXX 9000–9999Assigned ONVOY, LLC - NM 206F SAN YSIDRO NM
2021-02-03 575-262-7XXX 7000–7999Assigned ONVOY, LLC - NM 206F ANTHONY NM
2021-02-03 575-262-8XXX 8000–8999Assigned ONVOY, LLC - NM 206F ANTHONY NM
2021-02-03 575-320-1XXX 1000–1999Assigned ONVOY, LLC - NM 206F PORTALES NM
2021-02-03 575-320-2XXX 2000–2999Assigned ONVOY, LLC - NM 206F PORTALES NM
2021-02-03 575-338-7XXX 7000–7999Assigned ONVOY, LLC - NM 206F LA MESA NM
2021-02-03 575-338-8XXX 8000–8999Assigned ONVOY, LLC - NM 206F LA MESA NM
2021-02-03 575-345-3XXX 3000–3999Assigned ONVOY, LLC - NM 206F CANNON AFB NM
2021-02-03 575-345-4XXX 4000–4999Assigned ONVOY, LLC - NM 206F CANNON AFB NM
2021-02-03 575-570-2XXX 2000–2999Assigned ONVOY, LLC - NM 206F CANJILON NM
2021-02-03 575-570-6XXX 6000–6999Assigned ONVOY, LLC - NM 206F CANJILON NM
2021-02-03 575-577-1XXX 1000–1999Assigned ONVOY, LLC - NM 206F EL RITO NM
2021-02-03 575-577-2XXX 2000–2999Assigned ONVOY, LLC - NM 206F EL RITO NM
2021-02-03 575-655-6XXX 6000–6999Assigned ONVOY, LLC - NM 206F PENASCO NM
2021-02-03 575-655-8XXX 8000–8999Assigned ONVOY, LLC - NM 206F PENASCO NM
2021-02-03 575-708-8XXX 8000–8999Assigned ONVOY, LLC - NM 206F TUCUMCARI NM
2021-02-03 575-717-3XXX 3000–3999Assigned ONVOY, LLC - NM 206F QUESTA NM
2021-02-03 575-717-4XXX 4000–4999Assigned ONVOY, LLC - NM 206F QUESTA NM
2021-02-03 575-733-4XXX 4000–4999Assigned ONVOY, LLC - NM 206F RATON NM
2021-02-03 575-733-5XXX 5000–5999Assigned ONVOY, LLC - NM 206F RATON NM
2021-01-29 575-493-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 LORDSBURG NM
2021-01-26 575-345-6XXX 6000–6999Assigned FRACTEL, LLC 965H CANNON AFB NM
2021-01-14 575-592-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 DEMING NM
2021-01-12 575-242-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SILVERCITY NM
2021-01-08 575-248-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 6573 HATCH NM
2021-01-08 575-550-5XXX 5000–5999Assigned ONVOY, LLC - NM 206F ROSWELL NM
2021-01-05 575-244-9XXX 9000–9999Assigned ONVOY, LLC - NM 206F ROSWELL NM
2021-01-05 575-259-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 6573 LAS CRUCES NM
2021-01-05 575-259-1XXX 1000–1999Assigned TELEPORT COMMUNICATIONS AMERICA NM-LLC 450C LAS CRUCES 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
2020-12-15 575-728-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 6573 HATCH 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.