Autonomous System

AS39961 San Francisco Department of Telecommunications and Information Services

GovernmentActiveUnited StatesARIN

AS39961 (CCSF) is a government network operated by San Francisco Department of Telecommunications and Information Services in United States, registered with ARIN. It has 13 IPv4 prefixes with 59,904 addresses, which makes it the 4,009th largest of 82,200 active autonomous systems by IPv4 space.

IPv4 addresses59,904in 13 prefixes
IPv6 prefixes0none
Size rank#4,009of 82,200 active ASNs
Abuser scoreVery Lowunder 0.01% of its addresses flagged · method

Details

OrganizationSan Francisco Department of Telecommunications and Information Services
AS nameCCSF
Websitesf.gov
Country United States (US)
Network typeGovernment
RegistryARIN
Abuse contactcyberdefense@sfgov.org
Registered2006-05-24
Last updated2012-03-02

IPv4 prefixes

13 prefixes · 59,904 addresses
NetworkAddressesFirst – last address
208.121.128.0/1732,768208.121.128.0 – 208.121.255.255
208.121.64.0/1816,384208.121.64.0 – 208.121.127.255
208.121.32.0/204,096208.121.32.0 – 208.121.47.255
208.121.48.0/204,096208.121.48.0 – 208.121.63.255
208.121.226.0/23512208.121.226.0 – 208.121.227.255
208.121.0.0/24256208.121.0.0 – 208.121.0.255
208.121.1.0/24256208.121.1.0 – 208.121.1.255
208.121.5.0/24256208.121.5.0 – 208.121.5.255
208.121.6.0/24256208.121.6.0 – 208.121.6.255
208.121.203.0/24256208.121.203.0 – 208.121.203.255
208.121.224.0/24256208.121.224.0 – 208.121.224.255
208.121.225.0/24256208.121.225.0 – 208.121.225.255
208.121.230.0/24256208.121.230.0 – 208.121.230.255

IPv6 prefixes

No IPv6 prefixes.

Query AS39961 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=AS39961&key=YOUR_API_KEY"

Any address in its prefixes resolves to AS39961, with or without a key:

curl "https://api.ipapi.is/?q=208.121.128.1"

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