Carrier group · Underlying Local Exchange Carrier
Regional Telephone Corporation
Total blocks
98
Recent (18 mo)
0
Medium
57
Old
41
Member OCNs
1
States
1
Area codes
10
First assigned block
2022-03-31
2022-03-31
Last assigned block
2023-12-20
2023-12-20
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Headquarters: Rochester, NY
Carrier website
frontier.com: opens in a new tab
Block portfolio at a glance
By age
- Recent (0). Last 18 mo
- Medium (57)
- Old (41)
Footprint by state
Stronger blue = more blocks issued in that state. ● marks states with activity in the last 18 months.
- New York NY · 98
Top area codes
Bars show total blocks; red overlay is recent.
Block assignments by year
Member OCNs
1 OCN roll up under Regional Telephone Corporation.
| OCN | Company name on file | HQ | Type | Total | Recent |
|---|---|---|---|---|---|
| 558C | Regional Telephone Corporation - NY | Rochester, NY | Underlying Local Exchange Carrier | 98 | · |