NumberResearchThousands-blocks in 360-525
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 360-525 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
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2015-04-08 | 360-525-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | BREMERTON | WA |
| — | 360-525-1XXX | 1000–1999 | Reserved | ONVOY, LLC - WA | 483E | BREMERTON | WA |
| 2009-07-31 | 360-525-2XXX | 2000–2999 | Assigned | ONVOY, LLC - WA | 483E | BREMERTON | WA |
| 2010-10-27 | 360-525-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - WA | 006F | BREMERTON | WA |
| 2010-05-27 | 360-525-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | BREMERTON | WA |
| 2015-04-08 | 360-525-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | BREMERTON | WA |
| 2009-05-07 | 360-525-6XXX | 6000–6999 | Assigned | ONVOY, LLC - WA | 483E | BREMERTON | WA |
| 2011-02-09 | 360-525-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | BREMERTON | WA |
| 2013-10-30 | 360-525-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | BREMERTON | WA |
| 2015-06-12 | 360-525-9XXX | 9000–9999 | Assigned | ONVOY, LLC - WA | 483E | BREMERTON | 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.