Autonomous System

AS174 Cogent Communications, LLC

ISPActiveUnited StatesARIN

AS174 (COGENT-174) is an ISP network operated by Cogent Communications, LLC in United States, registered with ARIN. It has 2,111 IPv4 prefixes with 36,877,312 addresses and 57 IPv6 prefixes, which makes it the 16th largest of 82,534 active autonomous systems by IPv4 space.

IPv4 addresses36,877,312in 2,111 prefixes
IPv6 prefixes57≈ 4.6 × 10³⁰ addresses
Size rank#16of 82,534 active ASNs
Abuser scoreLow0.46% of its addresses flagged · method

Details

OrganizationCogent Communications, LLC
AS nameCOGENT-174
Websitecogentco.com
Country United States (US)
Network typeISP
RegistryARIN
Abuse contactabuse@cogentco.com
Registered1996-05-16
Last updated2012-03-02

IPv4 prefixes

2,111 prefixes · 36,877,312 addresses
NetworkAddressesFirst – last address
38.0.0.0/816,777,21638.0.0.0 – 38.255.255.255
208.0.0.0/112,097,152208.0.0.0 – 208.31.255.255
63.160.0.0/121,048,57663.160.0.0 – 63.175.255.255
154.48.0.0/121,048,576154.48.0.0 – 154.63.255.255
65.160.0.0/13524,28865.160.0.0 – 65.167.255.255
154.24.0.0/13524,288154.24.0.0 – 154.31.255.255
154.40.0.0/13524,288154.40.0.0 – 154.47.255.255
205.240.0.0/13524,288205.240.0.0 – 205.247.255.255
65.168.0.0/14262,14465.168.0.0 – 65.171.255.255
149.92.0.0/14262,144149.92.0.0 – 149.95.255.255
154.36.0.0/14262,144154.36.0.0 – 154.39.255.255
199.0.0.0/14262,144199.0.0.0 – 199.3.255.255
204.4.0.0/14262,144204.4.0.0 – 204.7.255.255
204.180.0.0/14262,144204.180.0.0 – 204.183.255.255
204.204.0.0/14262,144204.204.0.0 – 204.207.255.255
204.212.0.0/14262,144204.212.0.0 – 204.215.255.255
204.240.0.0/14262,144204.240.0.0 – 204.243.255.255
204.248.0.0/14262,144204.248.0.0 – 204.251.255.255
205.160.0.0/14262,144205.160.0.0 – 205.163.255.255
206.4.0.0/14262,144206.4.0.0 – 206.7.255.255
206.104.0.0/14262,144206.104.0.0 – 206.107.255.255
206.228.0.0/14262,144206.228.0.0 – 206.231.255.255
206.232.0.0/14262,144206.232.0.0 – 206.235.255.255
207.12.0.0/14262,144207.12.0.0 – 207.15.255.255
207.40.0.0/14262,144207.40.0.0 – 207.43.255.255
The 25 largest of 2,111. The API and the database have all of them.

IPv6 prefixes

57 prefixes
  • 2600::/28
  • 2600::/29
  • 2a06:f980::/29
  • 2a0e:78c0::/29
  • 2001:550::/32
  • 2001:978::/32
  • 2403:a800::/32
  • 2605:6900::/32
  • 2605:a680::/32
  • 2804:5330::/32
  • 2a02:bf8::/32
  • 2a0c:9e06::/32
  • 2a0e:a944::/32
  • 2a0e:a945::/32
  • 2a0e:a946::/32
  • 2a0e:a947::/32
  • 2a0f:3b80::/32
  • 2a0f:3b81::/32
  • 2a0f:3b82::/32
  • 2a0f:3b83::/32
  • 2c0f:e9a0::/32
  • 2402:4480::/33
  • 2402:4480:8000::/33
  • 2602:f7e1::/36
  • 2602:fd2e::/36
The 25 largest of 57. The API and the database have all of them.

Query AS174 with the API

The ASN lookup returns everything on this page as JSON, including every prefix. ASN lookups need an API key: a free account comes with 1,000 requests a day. 

curl "https://api.ipapi.is/?q=AS174&key=YOUR_API_KEY"

Any address in its prefixes resolves to AS174, with or without a key:

curl "https://api.ipapi.is/?q=38.0.0.1"

Other networks of Cogent Communications, LLC

AS4991 Cogent Communications, LLC16,384 IPv4 addresses

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