Data as of Nov 5, 2026
66.28.0.0/16
2 residential-proxy exits · 30 daysCogent Communications, LLC
Residential-proxy exits
Proxy exits
2
<0.01% of its addresses · 30 days
Spread
2 of 256
/24s with at least one exit
Providers
13
selling exits here
Oct 6, 2026 – Nov 4, 2026
Exits seen per day
193 observations
/24s with the most always-on exits
| /24 | Always-on exits | Proxy exits | |
|---|---|---|---|
| 66.28.50.0/24 | 0 | 1 | |
| 66.28.232.0/24 | 0 | 1 |
Proxy providers listing exits
- AnyIP
- ColaProxy
- EnigmaProxy
- FastProxy
- FloppyData
- Geonode
- LudaxProxy
- NovaProxy
- ProxyEmpire
- ProxyGeo
- RainProxy
- Thordata
- VantageProxies
Announcements
More specific
Announcements inside
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 66.28.182.0/24 since May 2013 | AS30666 | Residential | Cogent Communications, LLC | |
| 66.28.184.0/23 since May 2005 | AS26819 | Residential | 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 | |
|---|---|---|---|---|
| Internet provider | 64,512 | 98% | 8 | |
| Residential | 1,024 | 1.6% | 3 |
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 |
|---|---|---|---|---|---|
| 66.28.11.0/24 | AS22127 | RADB | AS22127 proxy-registered route by Cogent | MAINT-AS174 | Nov 13, 2023 |
| 66.28.15.0/24 | AS19457 | RADB | RUDIN-AS19457 (added by MAINT-AS3257) | MAINT-AS3257 | Nov 13, 2023 |
| 66.28.18.0/23 | AS26864 | RADB | 4DV.NET-AS26864(added by MAINT-AS3257) | MAINT-AS3257 | Nov 13, 2023 |
| 66.28.19.0/24 | AS26859 | RADB | AS26859 proxy-registered route by Cogent | MAINT-AS174 | Nov 13, 2023 |
| 66.28.19.0/24 | AS26864 | RADB | 4DVISION LLC-AS26864(added by MAINT-AS3257) | MAINT-AS3257 | Nov 13, 2023 |
| 66.28.25.0/24 | AS36351 | REACH | REACH (Customer Route) | MAINT-REACH-NOC | Jan 11, 2012 |
| 66.28.26.0/24 | AS36351 | REACH | REACH (Customer Route) | MAINT-REACH-NOC | Jan 11, 2012 |
| 66.28.29.0/24 | AS23256 | RADB | PNAP-SFO digitalwire | MAINT-AS1828 | Nov 13, 2023 |
| 66.28.29.0/24 | AS23256 | ALTDB | Blue Telegraph Communications | MAINT-BTC | Aug 5, 2002 |
| 66.28.48.0/23 | AS23130 | RADB | PNAP-SFO digitalwire route | MAINT-AS1828 | Nov 13, 2023 |
| 66.28.52.0/22 | AS26859 | RADB | AS26859 proxy-registered route by Cogent | MAINT-AS174 | Nov 13, 2023 |
| 66.28.52.0/22 | AS26864 | RADB | 4DVISION LLC-AS26864(added by MAINT-AS3257) | MAINT-AS3257 | Nov 13, 2023 |
| 66.28.74.0/23 | AS10607 | RADB | AS10607 proxy-registered route by Cogent | MAINT-AS174 | Nov 13, 2023 |
| 66.28.76.0/22 | AS27437 | RADB | AS27437 proxy-registered route by Cogent | MAINT-AS174 | Nov 13, 2023 |
| 66.28.80.0/24 | AS26859 | RADB | AS26859 proxy-registered route by Cogent | MAINT-AS174 | Nov 13, 2023 |
| 66.28.80.0/24 | AS26864 | RADB | 4DVISION LLC-AS26864(added by MAINT-AS3257) | MAINT-AS3257 | Nov 13, 2023 |
| 66.28.82.0/24 | AS26541 | RADB | PNAP-CHG guavatech-1 | MAINT-AS1828 | Nov 13, 2023 |
| 66.28.83.0/24 | AS14743 | RADB | PNAP-SJE sfo002-sje | MAINT-AS1828 | Nov 13, 2023 |
| 66.28.83.0/24 | AS22654 | RADB | PNAP-SFO Novani Route | MAINT-AS1828 | Nov 13, 2023 |
| 66.28.87.0/24 | AS7029 | RADB | Windstream (PaeTec) | MAINT-AS7029 | Nov 13, 2023 |
| 66.28.90.0/24 | AS22241 | RADB | AS22241 proxy-registered route by Cogent | MAINT-AS174 | Nov 13, 2023 |
| 66.28.97.0/24 | AS19457 | RADB | RUDIN-AS19457 (added by MAINT-AS3257) | MAINT-AS3257 | Nov 13, 2023 |
| 66.28.98.0/24 | AS23352 | RADB | PNAP-CHG servercentral route | MAINT-AS1828 | Nov 13, 2023 |
| 66.28.100.0/22 | AS21936 | RADB | Peer1 route object | MAINT-AS13768 | Jun 30, 2026 |
| 66.28.110.0/23 | AS36351 | REACH | REACH (Customer Route) | MAINT-REACH-NOC | Jan 11, 2012 |
| 66.28.112.0/24 | AS17377 | RADB | AS17377 proxy-registered route by Cogent | MAINT-AS174 | Nov 13, 2023 |
| 66.28.113.0/24 | AS36351 | REACH | REACH (Customer Route) | MAINT-REACH-NOC | Jan 11, 2012 |
| 66.28.114.0/24 | AS22551 | RADB | AS22551 proxy-registered route by Cogent | MAINT-AS174 | Nov 13, 2023 |
| 66.28.115.0/24 | AS13332 | ALTDB | Silicon Valley Web Hosting PE | MAINT-SVWH | Mar 3, 2008 |
| 66.28.116.0/24 | AS13389 | RADB | AS13389 proxy-registered route by Cogent | MAINT-AS174 | Nov 13, 2023 |
| 66.28.117.0/24 | AS14743 | RADB | PNAP-SJE sfo002-sje | MAINT-AS1828 | Nov 13, 2023 |
| 66.28.117.0/24 | AS22654 | RADB | PNAP-SFO pnap-sfo digitalwire routes | MAINT-AS1828 | Nov 13, 2023 |
| 66.28.124.0/22 | AS23256 | RADB | AS23256 proxy-registered route by Cogent | MAINT-AS174 | Nov 13, 2023 |
| 66.28.146.0/24 | AS20406 | RADB | AS20406 proxy-registered route by Cogent | MAINT-AS174 | Nov 13, 2023 |
| 66.28.156.0/24 | AS21505 | RADB | PNAP-NYC thorn | MAINT-AS1828 | Nov 13, 2023 |
| 66.28.157.0/24 | AS13332 | ALTDB | Silicon Valley Web Hosting PE | MAINT-SVWH | Mar 3, 2008 |
| 66.28.160.0/22 | AS26859 | RADB | AS26859 proxy-registered route by Cogent | MAINT-AS174 | Nov 13, 2023 |
| 66.28.160.0/22 | AS26864 | RADB | 4DVISION LLC-AS26864(added by MAINT-AS3257) | MAINT-AS3257 | Nov 13, 2023 |
| 66.28.168.0/21 | AS15087 | RADB | PNAP-ATL INAP-MEAG | MAINT-AS1828 | Nov 13, 2023 |
| 66.28.176.0/24 | AS26486 | RADB | AS26486 proxy-registered route by Cogent | MAINT-AS174 | Nov 13, 2023 |
| 66.28.181.0/24 | AS17054 | RADB | RR-RC-Expedient-MOH | MAINT-RR | Nov 13, 2023 |
| 66.28.181.0/24 | AS32764 | RADB | AS32764 proxy-registered route by Cogent | MAINT-AS174 | Nov 13, 2023 |
| 66.28.189.0/24 | AS26254 | NTTCOM | Mail2World Network | MAINT-MAIL2WORLD | Jan 10, 2003 |
| 66.28.209.0/24 | AS26458 | RADB | AS26458 proxy-registered route by Cogent | MAINT-AS174 | Nov 13, 2023 |
Whois
Registration for this announcement
- Range
- 66.
28. 0. 0/ 16 - Netname
- COGENT-NB-0000
- 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-66-28-0-0-1
- Parent
- NET-66-0-0-0-0
- Created
- Oct 12, 2000
- RIR
- ARIN
- Country
- US
- Delegated
- Oct 12, 2000
- Status
- assigned
Report abuse
Abuse contact
- abuse@
cogentco. com - Name
- Cogent Abuse
- Phone
- +1-877-875-4311
- Handle
- COGEN-ARIN