NumberResearchThousands-blocks in 916-358
This prefix’s ten 1,000-number blocks and who holds each — 10 on record · from the daily NANPA thousands-block report, 09/19/2026
The ten 1,000-number thousand-blocks inside prefix 916-358 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 916 blocks
Most active assignees, all time — NPA 916
New assignments by month
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2011-08-05 | 916-358-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | FOLSOM | CA |
| — | 916-358-1XXX | 1000–1999 | Reserved | PACIFIC BELL | 9740 | FOLSOM | CA |
| — | 916-358-2XXX | 2000–2999 | Reserved | PACIFIC BELL | 9740 | FOLSOM | CA |
| — | 916-358-3XXX | 3000–3999 | Reserved | PACIFIC BELL | 9740 | FOLSOM | CA |
| — | 916-358-4XXX | 4000–4999 | Reserved | PACIFIC BELL | 9740 | FOLSOM | CA |
| — | 916-358-5XXX | 5000–5999 | Reserved | PACIFIC BELL | 9740 | FOLSOM | CA |
| 2025-07-03 | 916-358-6XXX | 6000–6999 | Assigned | TERRA NOVA TELECOM INC. | 145J | FOLSOM | CA |
| 2006-10-11 | 916-358-7XXX | 7000–7999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | FOLSOM | CA |
| 2006-10-11 | 916-358-8XXX | 8000–8999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | FOLSOM | CA |
| 2010-09-29 | 916-358-9XXX | 9000–9999 | Assigned | COMCAST PHONE OF CALIFORNIA, LLC | 394L | FOLSOM | CA |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.