Data as of Nov 9, 2026
204.215.37.0/24
No anonymizer space · no proxy exits in 30 daysCenturyLink Communications, LLC · space held by Cogent Communications, LLC
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 204.215.32.0/20 since May 2005 | AS2379 | Residential | Cogent Communications, LLC | ||
| 204.212.0.0/14 since May 2024 | AS174 | Internet provider | 37 2 always on | Cogent Communications, LLC |
Network & registry
Origin network
AS209
US
- Name
- CenturyLink Communications, LLC
- Type
- Internet provider
- Registered
- Nov 13, 1998
- Domain
- lumen.com
- Website
- www.lumen.com
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Stable
- First seen
- Nov 2015
- Current origin since
- Nov 2015 · 11 yr
- Origin networks
- 1
Whois
Registration for this announcement
- Range
- 204.
212. 0. 0/ 14 - Netname
- COGENT-204-212-0
- Registrant
- Cogent Communications, LLC
- Organization
- Cogent Communications, LLC (COGC)
- Org address
- 2450 N Street NW, Washington, DC, 20037
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-204-212-0-0-1
- Parent
- NET-204-0-0-0-0
- Created
- Dec 11, 1994
- RIR
- ARIN
- Country
- US
- Delegated
- Dec 11, 1994
- Status
- assigned
Report abuse
Abuse contact
- abuse@
cogentco. com - Name
- Cogent Abuse
- Phone
- +1-877-875-4311
- Handle
- COGEN-ARIN