Data as of Nov 7, 2026
204.240.0.0/14
65,536 anonymizer addresses · 25%Cogent Communications, LLC
IPv4 market
Path
4 · Use
Internet provider
anonymizer space, operator not named
Operators, sellers and brokers
Leased from
IP brokers
| Name | In 204.240.0.0/14 | /24s |
|---|---|---|
| Rackdog | 65,53625% | 256 |
Leased from
Owners leasing their own space
| Name | In 204.240.0.0/14 | /24s |
|---|---|---|
| Cogent Communications, LLC | 65,53625% | 256 |
Lineage
How this block came to its use, oldest first. The whole IPv4 market →
204.240.0.0/14
From the registry to its use
- Dec 20, 1994Registry recordCogent Communications, LLCDirect Allocation (legacy, pre-1997)204.240.0.0/14
- Aug 31, 2001Route objectAS1239 Cogent Communications, LLCRADB route object for AS1239 Cogent Communications, LLC, maintainer MAINT-AS174204.241.122.0/24
- Mar 8, 2004Route objectAS174 Cogent Communications, LLCRADB route object for AS174 Cogent Communications, LLC, maintainer MAINT-AS174
- May 9, 2005– today
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 the announcement: those covering it, widest first, then every record inside it, 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@ |
| └ 204.241.18.0/23 | 512 | PSI-CIDR04-18 | PSINet/Kingdom Capital (C00006082) · US | Reassigned | May 5, 1995 | abuse@ via COGENT-204-240-14 |
| └ 204.241.218.0/24 | 256 | PSI-CIDR04-218 | unknown | — | — | — |
| └ 204.242.0.0/16 | 65,536 | RACKDOG-CGNT-NET-33 | RCN (C11605228) · US | Reassigned | May 27, 2026 | abuse@ via COGENT-204-240-14 |
| └ 204. | 3,328 | PSI-BLK-C2-172 | unknown | — | — | — |
| └ 204.243.188.0/22 | 1,024 | PSI-BLK-C2-188 | unknown | — | — | — |
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
262,144 addresses
| Type | Addresses | Share | Ranges | |
|---|---|---|---|---|
| Internet provider | 196,352 | 75% | 3 | |
| ISP proxyanonymizer | 65,280 | 25% | 30 | |
| Business | 256 | 0.10% | 1 | |
| Datacenter proxyanonymizer | 256 | 0.10% | 1 |
Network & registry
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 this prefix
Summary
Routing history
- Pattern
- Stable
- First seen
- May 2005
- Current origin since
- May 2005 · 21 yr
- Origin networks
- 1
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS174 | RADB | Cogent | MAINT-AS174 | Nov 13, 2023 |
IRR inside
Route objects inside
| Prefix | Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|---|
| 204.241.122.0/24 | AS1239 | RADB | REGULUS INTEGRATED SOLUTIONS, LLC | 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