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 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
2024-01-09	249-627	not yet reported which blocks →	Fibernetics Corporation	464D	Bobcaygeon	—
2024-01-09	249-628	not yet reported which blocks →	Fibernetics Corporation	464D	Lindsay	—
2024-01-09	249-947	not yet reported which blocks →	Fibernetics Corporation	464D	Huntsville	—
2023-10-23	249-942	not yet reported which blocks →	Fibernetics Corporation	464D	Bluewater	—
2023-10-16	249-945	not yet reported which blocks →	Fibernetics Corporation	464D	Cookstown	—
2023-10-16	249-946	not yet reported which blocks →	Fibernetics Corporation	464D	Penetanguishene	—
2023-10-13	249-943	not yet reported which blocks →	Fibernetics Corporation	464D	Borden-Angus	—
2023-10-13	249-944	not yet reported which blocks →	Fibernetics Corporation	464D	Collingwood	—
2023-10-04	249-450	not yet reported which blocks →	Fibernetics Corporation	464D	Blezard Valley	—
2023-10-04	249-856	not yet reported which blocks →	Fibernetics Corporation	464D	Sudbury	—
2023-09-18	249-981	not yet reported which blocks →	Fibernetics Corporation	464D	Peterborough	—
2023-08-09	249-952	not yet reported which blocks →	Fibernetics Corporation	464D	Batchawana Bay	—
2023-08-09	249-953	not yet reported which blocks →	Fibernetics Corporation	464D	Blind River	—
2023-08-09	249-954	not yet reported which blocks →	Fibernetics Corporation	464D	Elliot Lake	—
2023-08-09	249-955	not yet reported which blocks →	Fibernetics Corporation	464D	Sault Ste. Marie	—
2023-08-08	249-584	not yet reported which blocks →	Fibernetics Corporation	464D	McKellar	—
2023-08-08	249-585	not yet reported which blocks →	Fibernetics Corporation	464D	Parry Sound	—
2022-12-13	249-403	not yet reported which blocks →	Fibernetics Corporation	464D	Bracebridge	—
2022-12-13	249-420	not yet reported which blocks →	Fibernetics Corporation	464D	Gravenhurst	—
2022-07-04	249-459	not yet reported which blocks →	Fibernetics Corporation	464D	Bruce Mines	—
2022-07-04	249-461	not yet reported which blocks →	Fibernetics Corporation	464D	Chub Lake	—
2022-07-04	249-462	not yet reported which blocks →	Fibernetics Corporation	464D	Desbarats	—
2022-07-04	249-463	not yet reported which blocks →	Fibernetics Corporation	464D	Echo Bay	—
2022-07-04	249-464	not yet reported which blocks →	Fibernetics Corporation	464D	Elliot Lake	—
2022-07-04	249-465	not yet reported which blocks →	Fibernetics Corporation	464D	Goulais	—
2022-07-04	249-466	not yet reported which blocks →	Fibernetics Corporation	464D	Iron Bridge	—
2022-07-04	249-467	not yet reported which blocks →	Fibernetics Corporation	464D	Ophir	—
2022-07-04	249-469	not yet reported which blocks →	Fibernetics Corporation	464D	Searchmont	—
2022-07-04	249-470	not yet reported which blocks →	Fibernetics Corporation	464D	St. Joseph Island	—
2022-07-04	249-471	not yet reported which blocks →	Fibernetics Corporation	464D	Thessalon	—
2022-06-30	249-456	not yet reported which blocks →	Fibernetics Corporation	464D	Algoma Mills	—
2022-06-30	249-457	not yet reported which blocks →	Fibernetics Corporation	464D	Batchawana Bay	—
2022-06-30	249-458	not yet reported which blocks →	Fibernetics Corporation	464D	Blind River	—
2022-06-17	249-429	not yet reported which blocks →	Fibernetics Corporation	464D	Missanabie	—
2022-06-17	249-430	not yet reported which blocks →	Fibernetics Corporation	464D	Noelville	—
2022-06-17	249-438	not yet reported which blocks →	Fibernetics Corporation	464D	Oba	—
2022-06-17	249-439	not yet reported which blocks →	Fibernetics Corporation	464D	Ramsay	—
2022-06-17	249-440	not yet reported which blocks →	Fibernetics Corporation	464D	Silverwater	—
2022-06-17	249-441	not yet reported which blocks →	Fibernetics Corporation	464D	Spanish	—
2022-06-17	249-442	not yet reported which blocks →	Fibernetics Corporation	464D	Sultan	—
2022-06-17	249-443	not yet reported which blocks →	Fibernetics Corporation	464D	Wawa	—
2022-06-17	249-446	not yet reported which blocks →	Fibernetics Corporation	464D	Westree	—
2022-06-17	249-447	not yet reported which blocks →	Fibernetics Corporation	464D	Whitefish	—
2022-06-17	249-448	not yet reported which blocks →	Fibernetics Corporation	464D	Whitefish Falls	—
2022-05-27	249-365	not yet reported which blocks →	Fibernetics Corporation	464D	Gogama	—
2022-05-27	249-382	not yet reported which blocks →	Fibernetics Corporation	464D	Hawk Junction	—
2022-05-27	249-384	not yet reported which blocks →	Fibernetics Corporation	464D	Killarney	—
2022-05-27	249-386	not yet reported which blocks →	Fibernetics Corporation	464D	Little Current	—
2022-05-27	249-401	not yet reported which blocks →	Fibernetics Corporation	464D	Massey	—
2022-05-26	249-289	not yet reported which blocks →	Fibernetics Corporation	464D	Biscotasing	—

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.