Autonomous System

AS9 Carnegie Mellon University

EducationActiveUnited StatesARIN

AS9 (CMU-ROUTER) is an education network operated by Carnegie Mellon University in United States, registered with ARIN. It has 8 IPv4 prefixes with 133,632 addresses and 1 IPv6 prefix, which makes it the 1,793rd largest of 82,200 active autonomous systems by IPv4 space.

IPv4 addresses133,632in 8 prefixes
IPv6 prefixes1≈ 7.9 × 10²⁸ addresses
Size rank#1,793of 82,200 active ASNs
Abuser scoreVery Low0.01% of its addresses flagged · method

Details

OrganizationCarnegie Mellon University
AS nameCMU-ROUTER
Websitecmu.edu
Country United States (US)
Network typeEducation
RegistryARIN
Abuse contactabuse@andrew.cmu.edu
Registered1984-04-17
Last updated2012-04-02

IPv4 prefixes

8 prefixes · 133,632 addresses
NetworkAddressesFirst – last address
128.2.0.0/1665,536128.2.0.0 – 128.2.255.255
128.237.0.0/1665,536128.237.0.0 – 128.237.255.255
204.194.28.0/221,024204.194.28.0 – 204.194.31.255
209.129.244.0/23512209.129.244.0 – 209.129.245.255
192.5.146.0/24256192.5.146.0 – 192.5.146.255
192.12.32.0/24256192.12.32.0 – 192.12.32.255
192.58.107.0/24256192.58.107.0 – 192.58.107.255
192.80.210.0/24256192.80.210.0 – 192.80.210.255

IPv6 prefixes

1 prefix
  • 2607:fb28::/32

Query AS9 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=AS9&key=YOUR_API_KEY"

Any address in its prefixes resolves to AS9, with or without a key:

curl "https://api.ipapi.is/?q=128.2.0.1"

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