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Ashburn, Virginia, 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
Virginia (US-VA)
Country
United States (US)
Time zone
America/New_York
Place centre
39.0437, -77.4875
GeoNames
4744870 ↗

Published prefixes

8,790 prefixes in Fastah's public IP data (6,751 IPv4, 2,039 IPv6). The first 100, in address order:
1.178.4.0/231.178.4.0/241.178.5.0/241.178.6.0/242.59.59.0/242.59.180.0/242.59.181.0/243.2.36.0/243.2.47.0/253.2.50.0/233.2.52.0/243.2.58.0/243.2.64.0/233.2.74.0/243.2.103.0/243.2.104.0/243.3.2.0/233.3.2.0/24
Show 82 more
3.3.5.0/243.3.16.0/213.3.32.0/233.4.0.0/233.4.0.0/243.4.1.0/243.4.2.0/243.4.9.0/243.4.10.0/243.4.12.5/323.4.12.6/323.4.12.39/323.4.12.40/323.4.13.64/273.4.15.112/293.5.0.0/193.33.44.0/223.41.128.0/173.41.208.0/253.80.0.0/123.80.16.0/233.83.168.0/223.91.171.128/253.208.0.0/123.208.72.176/283.209.83.0/273.209.83.32/273.209.83.64/273.209.83.96/273.209.83.144/283.209.83.160/273.209.83.192/263.209.84.0/253.209.84.128/253.209.85.0/253.209.85.128/273.209.85.160/273.209.85.192/273.209.87.0/253.209.87.128/253.209.202.48/283.216.99.160/273.216.135.0/243.216.136.0/213.216.144.0/233.216.148.0/223.217.228.0/223.218.180.0/223.224.0.0/123.227.4.0/223.227.250.128/253.228.170.0/263.228.170.64/263.228.170.128/253.228.171.0/253.228.171.128/253.228.172.0/253.228.172.128/253.228.173.0/253.228.173.128/263.228.173.192/263.228.181.0/243.228.182.0/313.228.182.5/323.228.182.6/313.228.182.8/313.228.182.10/323.228.182.46/313.228.182.48/283.228.182.64/273.228.182.96/303.228.182.100/323.231.2.0/253.234.232.224/273.234.248.192/263.235.26.0/233.235.32.0/213.235.112.0/213.235.189.96/303.235.189.100/303.235.202.128/263.236.32.0/22

Organizations (prefixes here)

Cogent Communications2,143
Amazon / AWS1,579
Microsoft991
Akamai494
IPXO439
GTT191
Verizon USA (Combined)168
Apple136
Cloudflare99
Tata Communications59
Bunny Communications54
Starlink48
Cisco Cloud Security42
Hyonix41
PCCW Global, Inc32
LogicWeb18
Datafast (Brazil)14
CatoNetworks10
Fastah10
Index Exchange7
OpenGeoFeedOrg-Public4

Geofeeds (prefixes here)

Cogent Communications · 012,143
Discovered feed 2e86522ad4fde8991,048
Microsoft · 04991
Amazon / AWS · 02531
Amazon / AWS · 01527
IPXO · 01439
Discovered feed 1392c57a1865b340349
Akamai · 02286
Akamai · 01208
GTT · 01191
Discovered feed 536a3a71907248f4173
Verizon USA (Combined) · 01168
iCloud Private Relay · 01136
Cloudflare · 0199
Discovered feed a6f638433f65dc0a84
Discovered feed efdc6c7066f1d56f74
Discovered feed c9a930e315e0638468
Discovered feed 28154912708b3c0467
Tata Communications · 0159
Discovered feed 0b969086a5adc91d55
Bunny Communications · 0154
SpaceX Starlink · 0148
Discovered feed 5ebc97ad68c7cb6648
SpaceX Starlink · 0248
Discovered feed 79e749c60996e4eb45
and 245 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 →