Data as of Nov 8, 2026
66.250.0.0/16
3 residential-proxy exits · 30 daysCogent Communications, LLC
Residential-proxy exits
Proxy exits
3
<0.01% of its addresses · 30 days
Always-on exits
1
33% of its exits
Spread
3 of 256
/24s with at least one exit
Providers
19
selling exits here
Oct 9, 2026 – Nov 7, 2026
Exits seen per day
2.9K observations
- Residential
- Internet provider
/24s with the most always-on exits
| /24 | Always-on exits | Proxy exits | |
|---|---|---|---|
| 66.250.99.0/24 | 1 | 1 | |
| 66.250.98.0/24 | 0 | 1 | |
| 66.250.142.0/24 | 0 | 1 |
Proxy providers listing exits
- Ake.net
- BottingTools
- Byteful
- CliProxy
- Decodo
- EnigmaProxy
- FastProxy
- GloryCloud
- KocerRoxy
- LudaxProxy
- NovaProxy
- Oxylabs
- ProxyEmpire
- RainProxy
- ResiProxies
- SPYDERPROXY_PREMIUM
- TrueProxies
- VantageProxies
- ZENPROXY_LITE
Announcements
More specific
Announcements inside
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 66.250.23.0/24 since Oct 2024 | AS198335 | Mobile | Cogent Communications, LLC | ||
| 66.250.48.0/23 since May 2007 | AS26819 | Residential | Cogent Communications, LLC | ||
| 66.250.98.0/23 since May 2013 | AS30666 | Residential | 2 1 always on | Cogent Communications, LLC | |
| 66.250.120.0/22 since May 2007 | AS26819 | Residential | Cogent Communications, LLC | ||
| 66.250.190.0/23 since Jun 2025 | AS20335 | Business | Cogent Communications, LLC via United Data Technologies, Inc. | ||
| 66.250.216.0/24 since Oct 2025 | AS12180 | Hosting | Cogent Communications, LLC | ||
| 66.250.218.0/24 since Jun 2006 | AS27229 | Hosting | Cogent Communications, LLC |
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 |
|---|---|---|---|---|---|---|
| 66.250.0.0/16 | 65,536 | COGENT-NB-0001 | Cogent Communications, LLC (COGC) · US | Direct Allocation | Mar 20, 2002 | abuse@ |
| └ 66.250.190.0/23 | 512 | UDT-CGNT-NET-3 | United Data Technologies, Inc. (UDT-72) · US | Reallocated | Mar 17, 2026 | — |
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 | 62,208 | 95% | 8 | |
| Residential | 2,048 | 3.1% | 3 | |
| Business | 512 | 0.78% | 1 | |
| Hosting | 512 | 0.78% | 2 | |
| Mobile | 256 | 0.39% | 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 · 22 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 |
|---|---|---|---|---|---|
| 66.250.22.0/23 | AS32737 | RADB | PNAP-DEN WISPERTEL_INTERNAP_ROUTE | MAINT-AS1828 | Nov 13, 2023 |
| 66.250.28.0/24 | AS22710 | RADB | PNAP-NYC Brencourt Advisors | MAINT-AS1828 | Nov 13, 2023 |
| 66.250.28.0/24 | AS33363 | RADB | RR-RC-Z 88.3 FM-Tampa Bay | MAINT-RR | Nov 13, 2023 |
| 66.250.52.0/24 | AS22710 | RADB | PNAP-NYC PNAP-NYC Brencourt Advisors | MAINT-AS1828 | Nov 13, 2023 |
| 66.250.54.0/23 | AS26627 | ALTDB | Pilosoft, Inc. | MAINT-AS26627 | Jun 12, 2004 |
| 66.250.54.0/24 | AS26627 | ALTDB | Pilosoft, Inc. | MAINT-AS26627 | Mar 14, 2003 |
| 66.250.55.0/24 | AS26627 | RADB | AS26627 proxy-registered route by Cogent | MAINT-AS174 | Nov 13, 2023 |
| 66.250.55.0/24 | AS26627 | ALTDB | Pilosoft, Inc. | MAINT-AS26627 | Oct 14, 2003 |
| 66.250.57.0/24 | AS26627 | RADB | AS26627 proxy-registered route by Cogent | MAINT-AS174 | Nov 13, 2023 |
| 66.250.57.0/24 | AS26627 | ALTDB | Pilosoft, Inc. | MAINT-AS26627 | Nov 4, 2004 |
| 66.250.60.0/22 | AS25973 | RADB | Mzima-US-04 | MAINT-AS3257 | Nov 13, 2023 |
| 66.250.65.0/24 | AS36351 | REACH | REACH (Customer Route) | MAINT-REACH-NOC | Jan 11, 2012 |
| 66.250.73.0/24 | AS25891 | RADB | AS25891 proxy-registered route by Cogent | MAINT-AS174 | Nov 13, 2023 |
| 66.250.74.0/24 | AS26627 | ALTDB | Pilosoft, Inc. | MAINT-AS26627 | Apr 8, 2003 |
| 66.250.86.0/23 | AS10607 | RADB | AS10607 proxy-registered route by Cogent | MAINT-AS174 | Nov 13, 2023 |
| 66.250.96.0/24 | AS25891 | RADB | AS25891 proxy-registered route by Cogent | MAINT-AS174 | Nov 13, 2023 |
| 66.250.97.0/24 | AS14743 | RADB | PNAP-SJE sfo002-sje | MAINT-AS1828 | Nov 13, 2023 |
| 66.250.97.0/24 | AS22654 | RADB | PNAP-SFO Internap Customer Route | MAINT-AS1828 | Nov 13, 2023 |
| 66.250.106.0/24 | AS13332 | ALTDB | Silicon Valley Web Hosting PE | MAINT-SVWH | Mar 3, 2008 |
| 66.250.107.0/24 | AS26627 | ALTDB | Pilosoft, Inc. | MAINT-AS26627 | Mar 14, 2003 |
| 66.250.126.0/24 | AS26235 | RADB | AS26235 proxy-registered route by Cogent | MAINT-AS174 | Nov 13, 2023 |
| 66.250.129.0/24 | AS26142 | RADB | PNAP-SFO CASPIAN-1 | MAINT-AS1828 | Nov 13, 2023 |
| 66.250.130.0/23 | AS26627 | ALTDB | Pilosoft, Inc. | MAINT-AS26627 | Mar 14, 2003 |
| 66.250.132.0/24 | AS29970 | RADB | Devon - Cogent | MAINT-AS29970 | Nov 13, 2023 |
| 66.250.140.0/24 | AS3491 | RADB | Proxy-registered route object | MAINT-AS3491 | Mar 28, 2025 |
| 66.250.141.0/24 | AS25912 | RADB | GETCO-AS25912(added by MAINT-AS3257) | MAINT-AS3257 | Nov 13, 2023 |
| 66.250.144.0/24 | AS26052 | RADB | AS26052 proxy-registered route by Cogent | MAINT-AS174 | Nov 13, 2023 |
| 66.250.145.0/24 | AS26346 | RADB | PNAP-SFO digitalwire | MAINT-AS1828 | Nov 13, 2023 |
| 66.250.152.0/24 | AS26859 | RADB | AS26859 proxy-registered route by Cogent | MAINT-AS174 | Nov 13, 2023 |
| 66.250.152.0/24 | AS26864 | RADB | 4DVISION LLC-AS26864(added by MAINT-AS3257) | MAINT-AS3257 | Nov 13, 2023 |
| 66.250.154.0/23 | AS27325 | RADB | AS27325 proxy-registered route by Cogent | MAINT-AS174 | Nov 13, 2023 |
| 66.250.170.0/23 | AS26627 | ALTDB | Pilosoft, Inc. | MAINT-AS26627 | Mar 14, 2003 |
| 66.250.184.0/22 | AS26859 | RADB | AS26859 proxy-registered route by Cogent | MAINT-AS174 | Nov 13, 2023 |
| 66.250.184.0/22 | AS26864 | RADB | 4DVISION LLC-AS26864(added by MAINT-AS3257) | MAINT-AS3257 | Nov 13, 2023 |
| 66.250.216.0/22 | AS12180 | RADB | PNAP-MIA Webhosting.net Routes | MAINT-AS1828 | Nov 13, 2023 |
| 66.250.220.0/24 | AS31846 | RADB | PNAP-MIA PNAP-MIA003 digiport route | MAINT-AS1828 | Nov 13, 2023 |
| 66.250.222.0/24 | AS22867 | RADB | Peer1 Route Object | MAINT-AS13768 | Jun 30, 2026 |
| 66.250.223.0/24 | AS26486 | RADB | AS26486 proxy-registered route by Cogent | MAINT-AS174 | Nov 13, 2023 |
| 66.250.224.0/21 | AS4374 | RADB | NeedHighSpeed.Com | MAINT-FLEXENTIAL | Nov 13, 2023 |
Whois
Registration for this announcement
- Range
- 66.
250. 0. 0/ 16 - Netname
- COGENT-NB-0001
- 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-66-250-0-0-1
- Parent
- NET-66-0-0-0-0
- Created
- Mar 20, 2002
- RIR
- ARIN
- Country
- US
- Delegated
- Mar 20, 2002
- Status
- assigned
Report abuse
Abuse contact
- abuse@
cogentco. com - Name
- Cogent Abuse
- Phone
- +1-877-875-4311
- Handle
- COGEN-ARIN