Data as of Nov 3, 2026
Autonomous system
AS15157
Northwestern Corporation
Announces 768 addresses in 3 prefixes. None of it is anonymizer space.
Type
Business
US
Announced prefixes
| Prefix | Type | Holder | RPKI |
|---|---|---|---|
| 199.3.108.0/24 since May 2005 | Business | Cogent Communications, LLC | |
| 199.3.109.0/24 since May 2005 | Business | Cogent Communications, LLC | |
| 206.107.235.0/24 since May 2005 | Business | Cogent Communications, LLC |
Network & history
Profile
- Registered
- Mar 27, 2000
- Domain
- northwestern.com
- Industry
- Retail Stores, Wholesale, and E-commerce Sites
Routing patterns
How its announcements have moved
Arrivals