Data as of Nov 6, 2026
204.157.116.0/22
No anonymizer space · no proxy exits in 30 daysCogent Communications, LLC
Registrations in this block
The registry's network records over this block, widest first, each under its parent.
| Range | Addresses | Netname | Holder | Type | Created | Abuse contact |
|---|---|---|---|---|---|---|
| 204.157.0.0/16 | 65,536 | COGENT-204-157-16 | Cogent Communications, LLC (COGC) · US | Direct Allocation | Sep 21, 1994 | abuse@ |
| └ 204.157.112.0/21 | 2,048 | BAY-COUNTRY-CGNT-NET-1 | unknown | — | — | — |
Network & registry
Announced by
Covering announcement 204.157.0.0/16
- Prefix
- 204.157.0.0/16
- Announced by
- AS174 Cogent Communications, LLC
- Type
- Internet provider
- Proxy exits
- 5,362
- Always-on exits
- 1,608
- RPKI
- No RPKI
- Netname
- COGENT-204-157-16
- Registrant
- Cogent Communications, LLC
- RIR
- ARIN
Origin network
AS174
US
- Name
- Cogent Communications, LLC
- Type
- Internet provider
- Registered
- May 16, 1996
- Domain
- cogentco.com
- Website
- www.cogentco.com/
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
- VPN servers
- 1,658
Routing timeline
Who has announced 204.157.0.0/16
204.157.0.0/16
Routing history
- Pattern
- Stable
- First seen
- May 2005
- Current origin since
- Jun 2005 · 21 yr
- Origin networks
- 2
- Last change of origin
- Jun 2005
Recorded history
History
- Handoffs
- 1
Whois
Registration for this announcement
- Range
- 204.
157. 0. 0/ 16 - Netname
- COGENT-204-157-16
- 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-204-157-0-0-1
- Parent
- NET-204-0-0-0-0
- Created
- Sep 21, 1994
- RIR
- ARIN
- Country
- US
- Delegated
- Sep 21, 1994
- Status
- assigned
Report abuse
Abuse contact
- abuse@
cogentco. com - Name
- Cogent Abuse
- Phone
- +1-877-875-4311
- Handle
- COGEN-ARIN