NumberResearch Membership · Data 09/20/2026

Recent prefix assignments

2 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/20/2026

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, last 30 days — NPA 659
ONVOY, LLC - AL 2
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
2020-06-29 659-658 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - AL 604E PELL CITY AL
2020-05-11 659-569 0XXX1XXX5XXX7XXX8XXX · 3 holders which blocks → ONVOY, LLC - AL 604E LYNN AL
2020-05-11 659-596 0XXX3XXX4XXX5XXX · 2 holders which blocks → ONVOY, LLC - AL 604E NEEDHAM AL
2020-02-20 659-599 0–9 XXXwhole prefix which blocks → ONVOY, LLC - AL 604E BIRMINGHAM AL
2019-10-10 659-444 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - AL 604E TRUSSVILLE AL
2019-10-10 659-666 0–9 XXXall 10 · 8 holders which blocks → ONVOY, LLC - AL 604E FAYETTE AL
2019-10-10 659-777 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX · 4 holders which blocks → ONVOY, LLC - AL 604E DETROIT AL
2019-10-10 659-900 0XXX1XXX2XXX4XXX5XXX6XXX8XXX9XXX · 4 holders which blocks → ONVOY, LLC - AL 604E SULLIGENT AL
2019-10-10 659-999 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → ONVOY, LLC - AL 604E WINFIELD AL
2019-10-09 659-222 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - AL 604E DORA AL
2019-09-27 659-300 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 4 holders which blocks → ONVOY, LLC - AL 604E BERRY AL
2019-09-27 659-400 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - AL 604E JEMISON AL
2019-09-27 659-500 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX · 4 holders which blocks → ONVOY, LLC - AL 604E PHILCMPBLL AL
2019-09-27 659-600 0XXX1XXX4XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → ONVOY, LLC - AL 604E SURFSIDE AL
2019-09-27 659-800 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → ONVOY, LLC - AL 604E VERNON AL
2019-09-24 659-200 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - AL 604E LINCOLN AL
— 659-207 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - AL 604E BIRMINGHAM AL
— 659-236 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - AL 604E DORA AL

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.