Data as of Nov 5, 2026
204.242.0.0/16
AnonymizerCogent Communications, LLC
IPv4 market
Path
4 · Use
ISP proxy
anonymizer space, operator not named
Operators, sellers and brokers
Leased from
IP brokers
| Name | In 204.242.0.0/16 | /24s |
|---|---|---|
| Rackdog | 65,536100% | 256 |
Leased from
Owners leasing their own space
| Name | In 204.242.0.0/16 | /24s |
|---|---|---|
| Cogent Communications, LLC | 65,536100% | 256 |
Announcements
Nesting
More-specifics by size
Sized by addresses, colored by each announcement's type. Click a tile with children to zoom in, a leaf to open it.
More specific
Announcements inside
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 |
|---|---|---|---|---|---|---|
| 204.240.0.0/14 | 262,144 | COGENT-204-240-14 | Cogent Communications, LLC (COGC) · US | Direct Allocation | Dec 20, 1994 | abuse@ |
| └ 204.242.0.0/16 | 65,536 | RACKDOG-CGNT-NET-33 | RCN (C11605228) · US | Reassigned | May 27, 2026 | abuse@ via COGENT-204-240-14 |
A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.
Composition
The types across the prefix's announced space, by addresses.
Announced space
Address share
Announced space
Types across the prefix
65,536 addresses
| Type | Addresses | Share | Ranges | |
|---|---|---|---|---|
| ISP proxyanonymizer | 65,280 | >99% | 30 | |
| Datacenter proxyanonymizer | 256 | 0.39% | 1 |
Network & registry
Announced by
Covering announcement 204.240.0.0/14
- Prefix
- 204.240.0.0/14
- Announced by
- AS174 Cogent Communications, LLC
- Type
- Internet provider
- Anonymizer addresses
- none
- RPKI
- No RPKI
- Netname
- COGENT-204-240-14
- 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 204.240.0.0/14
204.240.0.0/14
Routing history
- Pattern
- Stable
- First seen
- May 2005
- Current origin since
- May 2005 · 21 yr
- Origin networks
- 1
IRR
Route objects on 204.240.0.0/14
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS174 | RADB | Cogent | MAINT-AS174 | Nov 13, 2023 |
Whois
Registration for this announcement
- Range
- 204.
240. 0. 0/ 14 - Netname
- COGENT-204-240-14
- 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-204-240-0-0-1
- Parent
- NET-204-0-0-0-0
- Created
- Dec 20, 1994
- RIR
- ARIN
- Country
- US
- Delegated
- Dec 20, 1994
- Status
- assigned
Report abuse
Abuse contact
- abuse@
cogentco. com - Name
- Cogent Abuse
- Phone
- +1-877-875-4311
- Handle
- COGEN-ARIN