NumberResearchThousands-blocks in 619-766
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 619-766 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 |
|---|---|---|---|---|---|---|---|
| — | 619-766-0XXX | 0000–0999 | Reserved | PACIFIC BELL | 9740 | JACUMBA | CA |
| — | 619-766-1XXX | 1000–1999 | Reserved | PACIFIC BELL | 9740 | JACUMBA | CA |
| 2013-03-04 | 619-766-2XXX | 2000–2999 | Assigned | PEERLESS NETWORK OF CALIFORNIA, LLC - CA | 373F | JACUMBA | CA |
| — | 619-766-3XXX | 3000–3999 | Reserved | PACIFIC BELL | 9740 | JACUMBA | CA |
| — | 619-766-4XXX | 4000–4999 | Reserved | PACIFIC BELL | 9740 | JACUMBA | CA |
| 2015-04-07 | 619-766-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | JACUMBA | CA |
| 2021-10-12 | 619-766-6XXX | 6000–6999 | Assigned | ONVOY SPECTRUM, LLC | 624H | JACUMBA | CA |
| 2009-01-21 | 619-766-7XXX | 7000–7999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | JACUMBA | CA |
| 2001-12-06 | 619-766-8XXX | 8000–8999 | Assigned | LEVEL 3 TELECOM OF CALIFORNIA, LP - CA | 7718 | JACUMBA | CA |
| — | 619-766-9XXX | 9000–9999 | Reserved | PACIFIC BELL | 9740 | JACUMBA | 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.