Carrier group · Incumbent Local Exchange Carrier
Volcano Telephone Company
Holding: Volcano Communications Company
Total blocks
4
Recent (18 mo)
0
Medium
0
Old
0
Member OCNs
1
States
1
Area codes
1
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Headquarters: Pine Grove, CA
Block portfolio at a glance
By age
- Recent (0). Last 18 mo
- Medium (0)
- Old (0)
- Undated (4)
Footprint by state
Stronger blue = more blocks issued in that state. ● marks states with activity in the last 18 months.
- California CA · 4
Top area codes
Bars show total blocks; red overlay is recent.
Member OCNs
1 OCN roll up under Volcano Telephone Company.
| OCN | Company name on file | HQ | Type | Total | Recent |
|---|---|---|---|---|---|
| 2343 | Volcano Telephone Company | Pine Grove, CA | Incumbent Local Exchange Carrier | 4 | · |