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 425
ONVOY, LLC - WA 41
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
2023-04-14 425-476 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - WA 483E BOTHELL WA
2022-12-19 425-845 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - WA 483E KIRKLAND WA
2022-11-16 425-474 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - WA 483E EVERETT WA
2022-11-10 425-725 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - WA 483E HALLS LAKE WA
2022-09-13 425-464 2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 2 holders which blocks → ONVOY, LLC - WA 483E FALL CITY WA
2022-09-01 425-552 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - WA 483E SILVERLAKE WA
2021-02-02 425-386 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - WA 483E EVERETT WA
2021-02-02 425-504 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - WA 483E BELLEVUE WA
2016-05-04 425-215 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - WA 483E BOTHELL WA
2015-02-13 425-689 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → ONVOY, LLC - WA 483E AMES LAKE WA
— 425-243 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → ONVOY, LLC - WA 483E RENTON WA
— 425-399 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - WA 483E SILVERLAKE WA
— 425-448 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - WA 483E KIRKLAND WA
— 425-484 9XXX which blocks → ONVOY, LLC - WA 483E BELLEVUE WA
— 425-584 1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → ONVOY, LLC - WA 483E MAPLE VLY WA
— 425-642 9XXX which blocks → ONVOY, LLC - WA 483E ISSAQUAH WA
— 425-645 9XXX which blocks → ONVOY, LLC - WA 483E EVERETT WA
— 425-648 9XXX which blocks → ONVOY, LLC - WA 483E HALLS LAKE WA
— 425-650 not yet reported which blocks → ONVOY, LLC - WA 483E KIRKLAND WA
— 425-658 0–9 XXXall 10 · 7 holders which blocks → ONVOY, LLC - WA 483E KIRKLAND WA
— 425-669 0XXX1XXX9XXX · 2 holders which blocks → ONVOY, LLC - WA 483E SILVERLAKE WA
— 425-671 not yet reported which blocks → ONVOY, LLC - WA 483E BELLEVUE WA
— 425-675 not yet reported which blocks → ONVOY, LLC - WA 483E BELLEVUE WA
— 425-696 not yet reported which blocks → ONVOY, LLC - WA 483E BELLEVUE WA
— 425-699 not yet reported which blocks → ONVOY, LLC - WA 483E BELLEVUE WA
— 425-790 not yet reported which blocks → ONVOY, LLC - WA 483E BELLEVUE WA
— 425-795 not yet reported which blocks → ONVOY, LLC - WA 483E BELLEVUE WA
— 425-799 not yet reported which blocks → ONVOY, LLC - WA 483E BELLEVUE WA
— 425-871 not yet reported which blocks → ONVOY, LLC - WA 483E BELLEVUE WA
— 425-905 0XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → ONVOY, LLC - WA 483E EVERETT WA
— 425-906 1XXX2XXX7XXX9XXX · 3 holders which blocks → ONVOY, LLC - WA 483E MAPLE VLY WA
— 425-920 not yet reported which blocks → ONVOY, LLC - WA 483E BELLEVUE WA
— 425-928 not yet reported which blocks → ONVOY, LLC - WA 483E BELLEVUE WA
— 425-930 not yet reported which blocks → ONVOY, LLC - WA 483E BELLEVUE WA
— 425-940 not yet reported which blocks → ONVOY, LLC - WA 483E BELLEVUE WA
— 425-944 not yet reported which blocks → ONVOY, LLC - WA 483E BELLEVUE WA
— 425-955 not yet reported which blocks → ONVOY, LLC - WA 483E BELLEVUE WA
— 425-962 not yet reported which blocks → ONVOY, LLC - WA 483E BELLEVUE WA
— 425-963 not yet reported which blocks → ONVOY, LLC - WA 483E BELLEVUE WA
— 425-969 not yet reported which blocks → ONVOY, LLC - WA 483E BELLEVUE WA
— 425-998 3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → ONVOY, LLC - WA 483E BELLEVUE WA

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.