Data as of Nov 7, 2026
206.107.235.0/24
No anonymizer space · no proxy exits in 30 daysNorthwestern Corporation · space held by Cogent Communications, LLC
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 206.104.0.0/14 since May 2024 | AS174 | Internet provider | 13 1 always on | Cogent Communications, LLC |
Registrations in this block
The registry's network records over the announcement: those covering it, widest first, then every record inside it, under its parent.
| Range | Addresses | Netname | Holder | Type | Created | Abuse contact |
|---|---|---|---|---|---|---|
| 206.104.0.0/14 | 262,144 | COGENT-206-104-0 | Cogent Communications, LLC (COGC) · US | Direct Allocation | Aug 15, 1995 | abuse@ |
| └ 206.107.235.0/24 | 256 | SPRINT-CE6BEB5 | Northwestern Corporation (NORTHW-28) · US | Reassigned | Oct 22, 1999 | Sean. |
Network & registry
IPv4 market
Holder
- Organization
- Cogent Communications, LLC
- Handle
- COGC
- Range
- 206.
104. 0. 0/ 14 - Registration type
- Direct Allocation
- Record created
- Aug 15, 1995
- Legacy
- yes
Origin network
AS15157
US
- Name
- Northwestern Corporation
- Type
- Business
- Registered
- Mar 27, 2000
- Domain
- northwestern.com
- Industry
- Retail Stores, Wholesale, and E-commerce Sites
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Stable
- First seen
- May 2005
- Current origin since
- May 2005 · 21 yr
- Origin networks
- 1
Whois
Registration for this announcement
- Range
- 206.
107. 235. 0/ 24 - Netname
- SPRINT-CE6BEB5
- Registrant
- Northwestern Corporation
- Organization
- Northwestern Corporation (NORTHW-28)
- Org address
- 125 S. Dakota Ave., Sioux Falls, SD, 57104
- Org country
- US
- Type
- Reassigned
- Handle
- NET-206-107-235-0-1
- Parent
- NET-206-104-0-0-1
- Created
- Oct 22, 1999
- RIR
- ARIN
- Country
- US
- Delegated
- Aug 15, 1995
- Status
- assigned
Report abuse
Abuse contact
- Sean.
Cleverly@ northwestern. com - Name
- Cleverly, Sean
- Phone
- +1-406-497-4131
- Handle
- SC1244-ARIN