NumberResearchThousands-blocks in 760-477
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 760-477 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 760 blocks
Most active assignees, all time — NPA 760
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2013-06-03 | 760-477-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | VISTA | CA |
| — | 760-477-1XXX | 1000–1999 | Reserved | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | VISTA | CA |
| — | 760-477-2XXX | 2000–2999 | Reserved | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | VISTA | CA |
| 2006-07-17 | 760-477-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | VISTA | CA |
| 2012-12-03 | 760-477-4XXX | 4000–4999 | Assigned | ONVOY, LLC - CA | 649C | VISTA | CA |
| 2005-08-23 | 760-477-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | VISTA | CA |
| 2005-08-23 | 760-477-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CA | 649C | VISTA | CA |
| 2002-09-10 | 760-477-7XXX | 7000–7999 | Assigned | PAETEC ITEL, LLC | 829J | VISTA | CA |
| — | 760-477-8XXX | 8000–8999 | Reserved | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | VISTA | CA |
| — | 760-477-9XXX | 9000–9999 | Reserved | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | VISTA | CA |
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.