NumberResearchThousands-blocks in 701-503
This prefix’s ten 1,000-number blocks and who holds each — 10 on record · from the daily NANPA thousands-block report, 09/19/2026
The ten 1,000-number thousand-blocks inside prefix 701-503 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 701 blocks
Most active assignees, all time — NPA 701
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 |
|---|---|---|---|---|---|---|---|
| 2026-06-03 | 701-503-0XXX | 0000–0999 | Assigned | AHOI LLC | 883K | NOMCINTOSH | ND |
| 2020-08-31 | 701-503-1XXX | 1000–1999 | Assigned | NUSO, LLC | 478J | NOMCINTOSH | ND |
| 2021-10-05 | 701-503-2XXX | 2000–2999 | Assigned | ONVOY SPECTRUM, LLC | 624H | NOMCINTOSH | ND |
| 2021-05-17 | 701-503-3XXX | 3000–3999 | Assigned | ONVOY, LLC - ND | 452F | NOMCINTOSH | ND |
| 2021-01-13 | 701-503-4XXX | 4000–4999 | Assigned | ONVOY, LLC - ND | 452F | NOMCINTOSH | ND |
| 2021-01-13 | 701-503-5XXX | 5000–5999 | Assigned | ONVOY, LLC - ND | 452F | NOMCINTOSH | ND |
| 2022-12-15 | 701-503-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - ND | 8054 | NOMCINTOSH | ND |
| 2021-06-22 | 701-503-7XXX | 7000–7999 | Assigned | ONVOY SPECTRUM, LLC | 624H | NOMCINTOSH | ND |
| — | 701-503-8XXX | 8000–8999 | Available | NOMCINTOSH | ND | ||
| — | 701-503-9XXX | 9000–9999 | Available | NOMCINTOSH | ND |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.