NumberResearchThousands-blocks in 360-401
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 360-401 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 360 blocks
Most active assignees, all time — NPA 360
New assignments by month
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| — | 360-401-0XXX | 0000–0999 | Reserved | UNITED STATES CELLULAR - WA | 6270 | SHELTON | WA |
| — | 360-401-1XXX | 1000–1999 | Available | SHELTON | WA | ||
| 2022-06-17 | 360-401-2XXX | 2000–2999 | Assigned | COMCAST IP PHONE, LLC | 318J | SHELTON | WA |
| 2012-02-01 | 360-401-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SHELTON | WA |
| 2023-04-13 | 360-401-4XXX | 4000–4999 | Assigned | ONVOY, LLC - WA | 483E | SHELTON | WA |
| 2013-02-13 | 360-401-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA | 5812 | SHELTON | WA |
| — | 360-401-6XXX | 6000–6999 | Available | SHELTON | WA | ||
| — | 360-401-7XXX | 7000–7999 | Reserved | UNITED STATES CELLULAR - WA | 6270 | SHELTON | WA |
| 2021-10-18 | 360-401-8XXX | 8000–8999 | Assigned | ONVOY, LLC - WA | 483E | SHELTON | WA |
| 2012-03-27 | 360-401-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA | 5812 | SHELTON | WA |
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.