NumberResearchThousands-blocks in 207-507
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 207-507 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 |
|---|---|---|---|---|---|---|---|
| 2019-05-10 | 207-507-0XXX | 0000–0999 | Assigned | ONVOY, LLC - ME | 454F | RUMFORD | ME |
| 2012-08-20 | 207-507-1XXX | 1000–1999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | RUMFORD | ME |
| 2019-10-08 | 207-507-2XXX | 2000–2999 | Assigned | ONVOY, LLC - ME | 454F | RUMFORD | ME |
| 2018-02-12 | 207-507-3XXX | 3000–3999 | Assigned | PEERLESS NETWORK OF MAINE, LLC- ME | 925H | RUMFORD | ME |
| 2023-10-12 | 207-507-4XXX | 4000–4999 | Assigned | TERRA NOVA TELECOM INC. | 145J | RUMFORD | ME |
| 2020-11-17 | 207-507-5XXX | 5000–5999 | Assigned | PEERLESS NETWORK OF MAINE, LLC- ME | 925H | RUMFORD | ME |
| 2019-03-29 | 207-507-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - ME | 882G | RUMFORD | ME |
| 2019-10-08 | 207-507-7XXX | 7000–7999 | Assigned | ONVOY, LLC - ME | 454F | RUMFORD | ME |
| 2022-11-07 | 207-507-8XXX | 8000–8999 | Assigned | ONVOY, LLC - ME | 454F | RUMFORD | ME |
| 2016-12-19 | 207-507-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | RUMFORD | 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.