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 505
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
2025-09-18 505-656 0XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → ONVOY, LLC - NM 206F ALBUQURQUE NM
2025-03-20 505-650 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - NM 206F FARMINGTON NM
2025-02-13 505-649 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - NM 206F SANTA FE NM
2025-02-07 505-647 0XXX1XXX8XXX9XXX · 2 holders which blocks → ONVOY, LLC - NM 206F AZTEC NM
2024-09-10 505-631 0XXX1XXX2XXX3XXX4XXX7XXX8XXX9XXX · 4 holders which blocks → ONVOY, LLC - NM 206F AZTEC NM
2024-06-18 505-630 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - NM 206F ALBUQURQUE NM
2024-06-06 505-628 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - NM 206F SANTA FE NM
2024-03-21 505-619 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - NM 206F GALLUP NM
2024-03-21 505-621 0XXX1XXX2XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → ONVOY, LLC - NM 206F LAS VEGAS NM
2024-03-21 505-623 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - NM 206F LOS ALAMOS NM
2024-02-14 505-616 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - NM 206F ALBUQURQUE NM
2023-09-19 505-586 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - NM 206F FARMINGTON NM
2023-09-19 505-590 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - NM 206F AZTEC NM
2023-05-15 505-581 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - NM 206F ALBUQURQUE NM
2023-02-07 505-546 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - NM 206F ALBUQURQUE NM
2022-09-26 505-505 0–9 XXXwhole prefix which blocks → ONVOY, LLC - NM 206F SANTA FE NM
2021-04-18 505-810 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - NM 206F ALBUQURQUE NM
2020-11-24 505-535 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - NM 206F FARMINGTON NM
2019-10-22 505-391 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - NM 206F GRANTS NM
2019-05-28 505-458 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - NM 206F GALLUP NM
2019-01-23 505-370 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - NM 206F LAS VEGAS NM
2019-01-22 505-390 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - NM 206F AZTEC NM
2018-05-08 505-405 0–9 XXXwhole prefix which blocks → ONVOY, LLC - NM 206F OJOCALINTE NM
2018-05-08 505-502 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX which blocks → ONVOY, LLC - NM 206F CHIMAYO NM
2018-05-08 505-509 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 2 holders which blocks → ONVOY, LLC - NM 206F DIXON NM
2018-05-07 505-805 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 2 holders which blocks → ONVOY, LLC - NM 206F VELARDE NM
2018-02-23 505-814 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - NM 206F ALBUQURQUE NM
2018-01-12 505-521 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → ONVOY, LLC - NM 206F ALBUQURQUE NM
2016-03-08 505-308 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - NM 206F ALBUQURQUE NM
2016-03-07 505-305 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - NM 206F ALBUQURQUE NM
2016-03-03 505-587 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - NM 206F LAS VEGAS NM
2016-03-01 505-295 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - NM 206F ALBUQURQUE NM
2015-11-20 505-207 0–9 XXXwhole prefix which blocks → ONVOY, LLC - NM 206F ALBUQURQUE NM
2015-08-13 505-300 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - NM 206F ALBUQURQUE NM
2015-01-29 505-900 0–9 XXXall 10 · 6 holders which blocks → ONVOY, LLC - NM 206F ALBUQURQUE NM
2013-12-11 505-600 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - NM 206F ALBUQURQUE NM
2012-11-13 505-800 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - NM 206F ALBUQURQUE NM
2012-08-06 505-448 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - NM 206F ALBUQURQUE NM
2011-08-30 505-835 0–9 XXXall 10 · 7 holders which blocks → ONVOY, LLC - NM 206F ALBUQURQUE NM
2009-07-14 505-201 0XXX2XXX3XXX4XXX7XXX8XXX9XXX · 6 holders which blocks → ONVOY, LLC - NM 206F SANTA FE NM
2009-07-14 505-202 0XXX2XXX4XXX5XXX7XXX · 4 holders which blocks → ONVOY, LLC - NM 206F GALLUP NM
2009-07-14 505-233 3XXX which blocks → ONVOY, LLC - NM 206F GRANTS NM
2009-07-14 505-276 7XXX which blocks → ONVOY, LLC - NM 206F LAS VEGAS NM
2009-07-14 505-279 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → ONVOY, LLC - NM 206F FARMINGTON NM
2008-09-02 505-717 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - NM 206F ALBUQURQUE NM
2008-08-13 505-560 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - NM 206F FENCE LAKE NM
2008-08-13 505-591 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - NM 206F VANDERWGON NM
2008-08-13 505-594 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - NM 206F PINE HILL NM
2008-08-13 505-657 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - NM 206F PECOS NM
2008-08-13 505-806 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - NM 206F RAMAH 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.