NumberResearchThousands-blocks in 207-850
This prefix’s ten 1,000-number blocks and who holds each — 10 on record · from the daily NANPA thousands-block report, 09/20/2026
The ten 1,000-number thousand-blocks inside prefix 207-850 and who was initially assigned each. Under pooling these blocks often belong to different carriers — the single prefix-level “assignee” is usually just the pool / code holder, not who holds the numbers. ← all 207 blocks
Most active assignees, all time — NPA 207
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
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2008-07-03 | 207-850-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | SANFORD | ME |
| 2007-09-18 | 207-850-1XXX | 1000–1999 | Assigned | IDT AMERICA, CORP. - ME | 313C | SANFORD | ME |
| 2008-11-24 | 207-850-2XXX | 2000–2999 | Assigned | PAETEC ITEL, LLC | 829J | SANFORD | ME |
| 2011-12-23 | 207-850-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - ME | 7777 | SANFORD | ME |
| 2010-07-14 | 207-850-4XXX | 4000–4999 | Assigned | IDT AMERICA, CORP. - ME | 313C | SANFORD | ME |
| 2020-12-02 | 207-850-5XXX | 5000–5999 | Assigned | ONVOY, LLC - ME | 454F | SANFORD | ME |
| 2011-06-06 | 207-850-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | SANFORD | ME |
| 2018-10-11 | 207-850-7XXX | 7000–7999 | Assigned | ONVOY, LLC - ME | 454F | SANFORD | ME |
| 2024-08-08 | 207-850-8XXX | 8000–8999 | Assigned | BELL ATLANTIC MOBILE, INC | 6386 | SANFORD | ME |
| 2022-09-07 | 207-850-9XXX | 9000–9999 | Assigned | TERRA NOVA TELECOM INC. | 145J | SANFORD | ME |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.