Recent prefix assignments

0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/21/2026

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 249

Fibernetics Corporation 142

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

Recent NPA-NXX prefix assignments
Assigned	NPA-NXX	Thousands-blocks taken (last-4 opening)	Code holder	OCN	Rate center	State
2022-05-26	249-304	not yet reported which blocks →	Fibernetics Corporation	464D	Cartier	—
2022-05-26	249-305	not yet reported which blocks →	Fibernetics Corporation	464D	Chapleau	—
2022-05-26	249-312	not yet reported which blocks →	Fibernetics Corporation	464D	Dubreuilville	—
2022-05-26	249-314	not yet reported which blocks →	Fibernetics Corporation	464D	Estaire	—
2022-05-11	249-425	not yet reported which blocks →	Fibernetics Corporation	464D	Alban	—
2022-05-11	249-426	not yet reported which blocks →	Fibernetics Corporation	464D	Markstay	—
2022-05-11	249-427	not yet reported which blocks →	Fibernetics Corporation	464D	St. Charles	—
2022-05-11	249-428	not yet reported which blocks →	Fibernetics Corporation	464D	Warren	—
2022-04-26	249-409	not yet reported which blocks →	Fibernetics Corporation	464D	Field	—
2022-04-26	249-410	not yet reported which blocks →	Fibernetics Corporation	464D	Mattawa	—
2022-04-26	249-412	not yet reported which blocks →	Fibernetics Corporation	464D	Port Loring	—
2022-04-26	249-413	not yet reported which blocks →	Fibernetics Corporation	464D	Powassan	—
2022-04-26	249-414	not yet reported which blocks →	Fibernetics Corporation	464D	Redbridge	—
2022-04-26	249-415	not yet reported which blocks →	Fibernetics Corporation	464D	Restoule	—
2022-04-26	249-416	not yet reported which blocks →	Fibernetics Corporation	464D	Sturgeon Falls	—
2022-04-26	249-417	not yet reported which blocks →	Fibernetics Corporation	464D	Thorne	—
2022-04-26	249-418	not yet reported which blocks →	Fibernetics Corporation	464D	Trout Creek	—
2022-04-26	249-419	not yet reported which blocks →	Fibernetics Corporation	464D	Verner	—
2022-04-25	249-405	not yet reported which blocks →	Fibernetics Corporation	464D	Bonfield	—
2022-04-25	249-406	not yet reported which blocks →	Fibernetics Corporation	464D	Callander	—
2022-04-25	249-407	not yet reported which blocks →	Fibernetics Corporation	464D	Deux Rivieres	—
2022-04-25	249-408	not yet reported which blocks →	Fibernetics Corporation	464D	Dokis	—
2022-04-05	249-562	not yet reported which blocks →	Fibernetics Corporation	464D	Barrie	—
2021-12-10	249-629	not yet reported which blocks →	Fibernetics Corporation	464D	Little Britain	—
2021-12-02	249-563	not yet reported which blocks →	Fibernetics Corporation	464D	Algonquin Park	—
2021-12-02	249-564	not yet reported which blocks →	Fibernetics Corporation	464D	Baysville	—
2021-12-02	249-565	not yet reported which blocks →	Fibernetics Corporation	464D	Britt	—
2021-12-02	249-566	not yet reported which blocks →	Fibernetics Corporation	464D	Dwight	—
2021-12-02	249-567	not yet reported which blocks →	Fibernetics Corporation	464D	Emsdale	—
2021-12-02	249-568	not yet reported which blocks →	Fibernetics Corporation	464D	Magnetawan	—
2021-12-02	249-569	not yet reported which blocks →	Fibernetics Corporation	464D	Milford Bay	—
2021-12-02	249-570	not yet reported which blocks →	Fibernetics Corporation	464D	Nobel	—
2021-12-02	249-571	not yet reported which blocks →	Fibernetics Corporation	464D	Otter Lake	—
2021-12-02	249-572	not yet reported which blocks →	Fibernetics Corporation	464D	Port Sydney	—
2021-12-02	249-573	not yet reported which blocks →	Fibernetics Corporation	464D	South River	—
2021-12-02	249-574	not yet reported which blocks →	Fibernetics Corporation	464D	Sprucedale	—
2021-11-30	249-632	not yet reported which blocks →	Fibernetics Corporation	464D	Kirkfield	—
2021-11-30	249-634	not yet reported which blocks →	Fibernetics Corporation	464D	Oakwood	—
2021-11-30	249-635	not yet reported which blocks →	Fibernetics Corporation	464D	Woodville	—
2021-11-29	249-630	not yet reported which blocks →	Fibernetics Corporation	464D	Cameron	—
2021-11-29	249-631	not yet reported which blocks →	Fibernetics Corporation	464D	Dunsford	—
2021-08-19	249-286	not yet reported which blocks →	Fibernetics Corporation	464D	McKellar	—
2021-08-19	249-287	not yet reported which blocks →	Fibernetics Corporation	464D	Parry Sound	—
2021-01-22	249-650	not yet reported which blocks →	Fibernetics Corporation	464D	North Bay	—
2021-01-22	249-651	not yet reported which blocks →	Fibernetics Corporation	464D	Sudbury	—
2020-12-17	249-636	not yet reported which blocks →	Fibernetics Corporation	464D	Warkworth	—
2020-12-17	249-637	not yet reported which blocks →	Fibernetics Corporation	464D	Omemee	—
2020-12-17	249-638	not yet reported which blocks →	Fibernetics Corporation	464D	Norwood	—
2020-12-17	249-639	not yet reported which blocks →	Fibernetics Corporation	464D	Nephton	—
2020-12-17	249-640	not yet reported which blocks →	Fibernetics Corporation	464D	Lakefield	—

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.