NumberResearch Membership · Data 09/20/2026

Recent prefix assignments

0 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, all time — NPA 705
Northern Telephone Ltd. 39
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
2008-06-25 705-225 not yet reported which blocks → Northern Telephone Ltd. 8228 Timmins —
— 705-232 not yet reported which blocks → Northern Telephone Ltd. 8228 Iroquois Falls NT —
— 705-235 not yet reported which blocks → Northern Telephone Ltd. 8228 South Porcupine —
— 705-236 not yet reported which blocks → Northern Telephone Ltd. 8228 Ramore —
— 705-264 not yet reported which blocks → Northern Telephone Ltd. 8228 Timmins —
— 705-266 not yet reported which blocks → Northern Telephone Ltd. 8228 Timmins —
— 705-267 not yet reported which blocks → Northern Telephone Ltd. 8228 Timmins —
— 705-268 not yet reported which blocks → Northern Telephone Ltd. 8228 Timmins —
— 705-273 not yet reported which blocks → Northern Telephone Ltd. 8228 Matheson —
— 705-334 not yet reported which blocks → Northern Telephone Ltd. 8228 Abitibi Canyon —
— 705-335 not yet reported which blocks → Northern Telephone Ltd. 8228 Kapuskasing —
— 705-337 not yet reported which blocks → Northern Telephone Ltd. 8228 Kapuskasing —
— 705-338 not yet reported which blocks → Northern Telephone Ltd. 8228 Smooth Rock Falls —
— 705-339 not yet reported which blocks → Northern Telephone Ltd. 8228 Fauquier —
— 705-360 not yet reported which blocks → Northern Telephone Ltd. 8228 Timmins —
— 705-362 not yet reported which blocks → Northern Telephone Ltd. 8228 Hearst —
— 705-363 not yet reported which blocks → Northern Telephone Ltd. 8228 Connaught —
— 705-364 not yet reported which blocks → Northern Telephone Ltd. 8228 Mattice —
— 705-365 not yet reported which blocks → Northern Telephone Ltd. 8228 Kamiskotia —
— 705-367 not yet reported which blocks → Northern Telephone Ltd. 8228 Moonbeam —
— 705-369 not yet reported which blocks → Northern Telephone Ltd. 8228 Opasatika —
— 705-372 not yet reported which blocks → Northern Telephone Ltd. 8228 Hearst —
— 705-399 not yet reported which blocks → Northern Telephone Ltd. 8228 Timmins —
— 705-463 not yet reported which blocks → Northern Telephone Ltd. 8228 Calstock —
— 705-544 not yet reported which blocks → Northern Telephone Ltd. 8228 Englehart —
— 705-563 not yet reported which blocks → Northern Telephone Ltd. 8228 Earlton —
— 705-565 not yet reported which blocks → Northern Telephone Ltd. 8228 Matachewan —
— 705-567 not yet reported which blocks → Northern Telephone Ltd. 8228 Kirkland Lake —
— 705-568 not yet reported which blocks → Northern Telephone Ltd. 8228 Kirkland Lake —
— 705-624 not yet reported which blocks → Northern Telephone Ltd. 8228 Gowganda —
— 705-634 not yet reported which blocks → Northern Telephone Ltd. 8228 Virginiatown —
— 705-642 not yet reported which blocks → Northern Telephone Ltd. 8228 Swastika —
— 705-643 not yet reported which blocks → Northern Telephone Ltd. 8228 Larder Lake —
— 705-647 not yet reported which blocks → Northern Telephone Ltd. 8228 New Liskeard —
— 705-648 not yet reported which blocks → Northern Telephone Ltd. 8228 New Liskeard —
— 705-672 not yet reported which blocks → Northern Telephone Ltd. 8228 Haileybury —
— 705-676 not yet reported which blocks → Northern Telephone Ltd. 8228 Latchford —
— 705-678 not yet reported which blocks → Northern Telephone Ltd. 8228 Elk Lake —
— 705-679 not yet reported which blocks → Northern Telephone Ltd. 8228 Cobalt —

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.