NumberResearch Membership · Data 09/19/2026

Recent prefix assignments

0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/19/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

The Code holder is who opened each NPA-NXX prefix — not necessarily who holds the numbers. A prefix is 10,000 numbers, but under pooling its ten 1,000-number blocks are handed out individually, often to different carriers; the code holder may hold only one block, or none. The Thousands-blocks column shows how the ten blocks are really split — click which blocks → to see who holds each 1,000-number block and its last-4-digit range. Assignments are initial assignments; the current serving carrier may differ due to portability.

Most active assignees, all time — NPA 575
ONVOY, LLC - NM 54
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 NPA-NXX prefix assignments
AssignedNPA-NXXThousands-blocks taken (last-4 opening)Code holderOCNRate centerState
2024-11-08 575-331 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - NM 206F LAS CRUCES NM
2024-03-21 575-324 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 4 holders which blocks → ONVOY, LLC - NM 206F ALAMOGORDO NM
2024-03-21 575-326 0XXX1XXX2XXX3XXX · 4 holders which blocks → ONVOY, LLC - NM 206F ANTHONY NM
2023-05-18 575-310 0XXX1XXX2XXX3XXX4XXX5XXX8XXX9XXX · 4 holders which blocks → ONVOY, LLC - NM 206F RUIDOSO NM
2022-09-26 575-575 0–9 XXXwhole prefix which blocks → ONVOY, LLC - NM 206F ROSWELL NM
2022-05-09 575-750 0XXX7XXX · 2 holders which blocks → ONVOY, LLC - NM 206F CLOUDCROFT NM
2022-04-14 575-765 7XXX which blocks → ONVOY, LLC - NM 206F CARRIZOZO NM
2022-03-23 575-775 5XXX7XXX · 2 holders which blocks → ONVOY, LLC - NM 206F TULAROSA NM
2021-03-24 575-334 0XXX1XXX2XXX3XXX4XXX7XXX8XXX9XXX · 6 holders which blocks → ONVOY, LLC - NM 206F CHAPARRAL NM
2021-02-08 575-554 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - NM 206F ALAMOGORDO NM
2021-02-08 575-665 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - NM 206F HOBBS NM
2021-01-07 575-550 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - NM 206F ROSWELL NM
2019-12-16 575-213 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - NM 206F ALAMOGORDO NM
2019-12-16 575-216 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → ONVOY, LLC - NM 206F ANGEL FIRE NM
2019-12-16 575-237 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - NM 206F CARLSBAD NM
2019-12-13 575-210 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - NM 206F TUCUMCARI NM
2018-05-08 575-400 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - NM 206F LINDRITH NM
2018-05-08 575-570 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 2 holders which blocks → ONVOY, LLC - NM 206F CANJILON NM
2018-05-08 575-577 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX · 2 holders which blocks → ONVOY, LLC - NM 206F EL RITO NM
2018-05-08 575-579 0XXX2XXX3XXX4XXX5XXX6XXX7XXX · 3 holders which blocks → ONVOY, LLC - NM 206F HILLSBORO NM
2018-05-08 575-600 0XXX2XXX3XXX4XXX5XXX6XXX7XXX · 3 holders which blocks → ONVOY, LLC - NM 206F LYBROOK NM
2018-05-08 575-900 0XXX1XXX2XXX5XXX7XXX8XXX9XXX · 3 holders which blocks → ONVOY, LLC - NM 206F VALLECITOS NM
2017-10-03 575-500 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - NM 206F ROSWELL NM
2017-08-31 575-800 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - NM 206F LAS CRUCES NM
2017-08-17 575-250 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - NM 206F GALLINA NM
2017-08-17 575-251 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - NM 206F JAL NM
2017-08-17 575-254 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 2 holders which blocks → ONVOY, LLC - NM 206F JEMEZ SPG NM
2017-08-17 575-255 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - NM 206F SAN YSIDRO NM
2017-08-17 575-256 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX which blocks → ONVOY, LLC - NM 206F TIERRAAMRL NM
2017-08-01 575-552 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - NM 206F HOBBS NM
2016-03-22 575-727 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → ONVOY, LLC - NM 206F BAYARD NM
2016-03-22 575-735 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 6 holders which blocks → ONVOY, LLC - NM 206F CIMARRON NM
2015-06-26 575-888 0–9 XXXall 10 · 6 holders which blocks → ONVOY, LLC - NM 206F LAS CRUCES NM
2012-02-16 575-252 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - NM 206F ANGEL FIRE NM
2011-10-06 575-342 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - NM 206F SILVERCITY NM
2010-02-03 575-383 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → ONVOY, LLC - NM 206F RATON NM
2009-07-14 575-203 none assigned yet which blocks → ONVOY, LLC - NM 206F SNA TERESA NM
2009-07-14 575-204 0XXX which blocks → ONVOY, LLC - NM 206F CLOVIS NM
2009-07-14 575-212 none assigned yet which blocks → ONVOY, LLC - NM 206F TUCUMCARI NM
2009-07-14 575-217 none assigned yet which blocks → ONVOY, LLC - NM 206F RATON NM
2009-07-14 575-227 4XXX which blocks → ONVOY, LLC - NM 206F ALAMOGORDO NM
2009-07-14 575-230 0XXX8XXX · 2 holders which blocks → ONVOY, LLC - NM 206F ROSWELL NM
2009-07-14 575-238 none assigned yet which blocks → ONVOY, LLC - NM 206F TAOS NM
2009-07-14 575-239 6XXX which blocks → ONVOY, LLC - NM 206F SILVERCITY NM
2009-07-14 575-272 none assigned yet which blocks → ONVOY, LLC - NM 206F SOCORRO NM
2009-07-14 575-330 none assigned yet which blocks → ONVOY, LLC - NM 206F ARTESIA NM
2009-07-14 575-353 8XXX9XXX · 2 holders which blocks → ONVOY, LLC - NM 206F LAS CRUCES NM
2007-04-12 575-448 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - NM 206F CHAPARRAL NM
2007-04-12 575-904 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - NM 206F CANNON AFB NM
2007-03-13 575-322 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - NM 206F SOCORRO NM

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.