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San Francisco, California, United States

Networks whose geofeeds place IP prefixes here. IP-derived locations are approximate: a prefix placed here serves people in or around this city, not a street address.

Place details

Type
city
Region
California (US-CA)
Country
United States (US)
Time zone
America/Los_Angeles
Place centre
37.7749, -122.4194
GeoNames
5391959 ↗

Published prefixes

3,996 prefixes in Fastah's public IP data (2,847 IPv4, 1,149 IPv6). The first 100, in address order:
3.30.40.84/303.30.98.64/263.30.98.128/263.30.129.0/243.30.130.0/233.30.204.0/243.32.43.160/273.32.139.0/243.32.190.0/253.32.190.128/273.32.190.160/273.32.190.244/303.32.190.248/293.32.249.128/253.101.52.208/303.101.52.212/303.101.87.0/263.101.100.128/25
Show 82 more
3.101.114.0/263.101.114.64/263.101.145.192/273.101.145.224/273.101.156.0/263.101.157.128/253.101.158.0/233.101.160.44/303.101.160.48/283.101.160.240/293.101.161.0/253.101.161.128/253.101.162.0/243.101.163.0/263.101.163.64/283.101.163.80/283.101.163.96/283.101.164.0/243.101.176.0/243.101.177.20/303.101.177.48/293.101.194.128/263.101.200.0/243.101.201.128/253.101.202.0/233.101.208.0/243.101.209.0/263.101.226.80/293.101.226.88/293.101.232.0/223.101.239.34/313.101.239.36/304.150.232.8/294.150.233.30/314.150.233.64/264.150.233.128/254.150.234.0/284.150.234.16/294.150.234.24/294.150.239.212/304.150.240.0/234.150.242.0/294.150.244.0/234.150.249.24/294.150.249.32/274.150.249.64/264.150.253.0/264.150.253.64/284.150.253.80/294.150.255.0/248.9.40.8/308.17.207.0/248.20.125.0/248.29.109.70/328.29.109.158/328.29.228.58/328.29.228.89/328.29.230.0/328.29.231.0/3212.2.181.0/2912.178.134.32/2912.189.121.96/2913.52.1.0/2813.52.1.16/2813.52.1.32/2913.52.6.112/2913.52.32.96/2713.52.110.192/2613.52.118.0/2313.52.146.128/2813.52.146.192/2613.52.200.160/2713.52.201.0/2413.52.202.0/2413.52.232.224/2713.64.16.129/3213.64.16.130/3113.64.16.132/3013.64.16.136/3113.64.16.138/3213.64.26.88/3213.64.27.44/32

Organizations (prefixes here)

Cogent Communications1,477
Microsoft1,122
Cloudflare168
Amazon / AWS157
GTT126
Google65
Apple52
IPXO21
OpenGeoFeedOrg-Public7
Race Telecommunications, LLC.6
Bunny Communications4
Tata Communications4
Akamai2

Geofeeds (prefixes here)

Cogent Communications · 011,477
Microsoft · 031,122
Discovered feed 88a7d458f4641397169
Cloudflare · 01168
Amazon / AWS · 02157
GTT · 01126
Discovered feed 531e1d534595d48b120
Cloudflare · 0289
Google · 0165
Discovered feed 1bd035d689c08b8561
iCloud Private Relay · 0152
Discovered feed 6c1f211a586c547b33
Discovered feed f500df1b6bd5a6ba32
Discovered feed 90a63747551f16cf31
Discovered feed 73e82b9529eefcca29
IPXO · 0121
Discovered feed 5ebc97ad68c7cb6620
Discovered feed 73d11b653655790419
Discovered feed c9a930e315e0638418
Discovered feed cad3a2dc197e688b18
Discovered feed eb9ac414b12b367b18
Discovered feed 91f63ffea1cc848b13
Discovered feed ba9fd9fbf9ca94e713
Discovered feed 2c71512fb390f77e12
Discovered feed 5b3b6b64e4c035fe12
and 76 more

Data as of 2026-11-05, from Fastah's daily geofeed crawl.

Source & attribution. Place names and coordinates are from GeoNames (CC BY 4.0). The networks listed publish the geofeeds that place their prefixes here; Fastah does not edit them. Report a wrong location →