NumberResearchThousands-blocks in 660-699
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 660-699 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 660 blocks
Most active assignees, all time — NPA 660
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 |
|---|---|---|---|---|---|---|---|
| 2025-11-25 | 660-699-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | CLARENCE | MO |
| 2025-06-27 | 660-699-1XXX | 1000–1999 | Assigned | TERRA NOVA TELECOM INC. | 145J | CLARENCE | MO |
| — | 660-699-2XXX | 2000–2999 | Reserved | BRIGHTSPEED OF EAST MISSOURI, LLC | 1151 | CLARENCE | MO |
| — | 660-699-3XXX | 3000–3999 | Reserved | BRIGHTSPEED OF EAST MISSOURI, LLC | 1151 | CLARENCE | MO |
| 2015-08-31 | 660-699-4XXX | 4000–4999 | Assigned | CHARITON VALLEY COMMUNICATIONS CORPORATION | 250A | CLARENCE | MO |
| — | 660-699-5XXX | 5000–5999 | Available | CLARENCE | MO | ||
| 2021-11-10 | 660-699-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - MO | 6123 | CLARENCE | MO |
| — | 660-699-7XXX | 7000–7999 | Available | CLARENCE | MO | ||
| 2026-03-05 | 660-699-8XXX | 8000–8999 | Assigned | TERRA NOVA TELECOM INC. | 145J | CLARENCE | MO |
| 2020-08-27 | 660-699-9XXX | 9000–9999 | Assigned | FRACTEL, LLC | 965H | CLARENCE | MO |
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.