NumberResearchThousands-blocks in 619-365
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 619-365 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 619 blocks
Most active assignees, all time — NPA 619
New assignments by month
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2015-06-11 | 619-365-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | CORONADO | CA |
| 2023-07-11 | 619-365-1XXX | 1000–1999 | Assigned | TERRA NOVA TELECOM INC. | 145J | CORONADO | CA |
| 2024-04-10 | 619-365-2XXX | 2000–2999 | Assigned | TERRA NOVA TELECOM INC. | 145J | CORONADO | CA |
| — | 619-365-3XXX | 3000–3999 | Reserved | LEVEL 3 TELECOM OF CALIFORNIA, LP - CA | 7718 | CORONADO | CA |
| 2003-02-28 | 619-365-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | CORONADO | CA |
| 2008-12-17 | 619-365-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | CORONADO | CA |
| 2003-11-14 | 619-365-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | CORONADO | CA |
| 2024-09-17 | 619-365-7XXX | 7000–7999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CORONADO | CA |
| 2004-12-28 | 619-365-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | CORONADO | CA |
| 2004-12-28 | 619-365-9XXX | 9000–9999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | CORONADO | 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.