Carrier group · Incumbent Local Exchange Carrier
Timberline Telecom
Holding: North-State Telephone Company
Total blocks
3
Recent (18 mo)
0
Medium
0
Old
3
Member OCNs
1
States
1
Area codes
2
First assigned block
2001-01-26
2001-01-26
Last assigned block
2005-11-17
2005-11-17
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Block portfolio at a glance
By age
- Recent (0) — last 18 mo
- Medium (0)
- Old (3)
Footprint by state
Stronger blue = more blocks issued in that state. ● marks states with activity in the last 18 months.
- Washington WA · 3
Top area codes
Bars show total blocks; red overlay is recent.
Block assignments by year
Member OCNs
1 OCN roll up under Timberline Telecom.
| OCN | Company name on file | HQ | Type | Total | Recent |
|---|---|---|---|---|---|
| 581D | Skyline Telecom Company - WA | Mount Vernon, OR | Incumbent Local Exchange Carrier | 3 | — |