Data as of Nov 5, 2026
208.12.0.0/16
49,152 anonymizer addresses · 75% · ISP proxyCogent Communications, LLC
IPv4 market
Path
3 · Announced by
AS174 Cogent Communications, LLC
4 · Use
ISP proxy
anonymizer space, operator not named
Operators, sellers and brokers
Leased from
IP brokers
| Name | In 208.12.0.0/16 | /24s |
|---|---|---|
| Rackdog | 49,15275% | 192 |
Leased from
Owners leasing their own space
| Name | In 208.12.0.0/16 | /24s |
|---|---|---|
| Cogent Communications, LLC | 16,38425% | 64 |
Announcements
More specific
Announcements inside
| Prefix | Origin | Type | Anonymizer addresses | Leased from | Holder | RPKI |
|---|---|---|---|---|---|---|
| 208.12.0.0/19 since Nov 2025 | AS8881 | ISP proxy | 4,09650% | IP broker Rackdog | Cogent Communications, LLC | |
| 208.12.0.0/20 since Nov 2025 | AS8881 | ISP proxy | IP broker Rackdog | Cogent Communications, LLC | ||
| 208.12.64.0/20 since Dec 2025 | AS6762 | ISP proxy | IP broker Rackdog | Cogent Communications, LLC | ||
| 208.12.80.0/20 since Dec 2025 | AS6762 | ISP proxy | IP broker Rackdog | Cogent Communications, LLC | ||
| 208.12.120.0/24 since May 2005 | AS1906 | Business | Cogent Communications, LLC | |||
| 208.12.121.0/24 since Mar 2007 | AS1906 | Business | Cogent Communications, LLC | |||
| 208.12.122.0/24 since May 2005 | AS1906 | Business | Cogent Communications, LLC |
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 | 49,152 | 75% | 8 | |
| Internet provider | 15,551 | 24% | 10 | |
| Business | 833 | 1.3% | 10 |
Network & registry
Announced by
Covering announcement 208.0.0.0/11
- Prefix
- 208.0.0.0/11
- Announced by
- AS174 Cogent Communications, LLC
- Type
- Internet provider
- Anonymizer addresses
- 61,440 addresses · 2.9%ISP proxy
- Proxy exits
- 605
- Always-on exits
- 177
- RPKI
- No RPKI
- Netname
- COGC
- 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 208.0.0.0/11
208.0.0.0/11
Routing history
- First seen
- Before our records
- Origin networks
- 1
Whois
Registration for this announcement
- Range
- 208.
0. 0. 0 - 208. 35. 255. 255 - Netname
- COGC
- 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-208-0-0-0-1
- Parent
- NET-208-0-0-0-0
- Created
- Mar 13, 1996
- RIR
- ARIN
- Country
- US
- Delegated
- Mar 13, 1996
- Status
- assigned
Report abuse
Abuse contact
- abuse@
cogentco. com - Name
- Cogent Abuse
- Phone
- +1-877-875-4311
- Handle
- COGEN-ARIN