AS289 is the autonomous system of Headquarters, USAISC. It holds 81,920 IPv4 addresses in 6 prefixes plus 1 IPv6 ranges, mainly in 
United States.
By IPv4 addresses the network ranks #2,141 worldwide and #689 of 18,202 networks in United States.
The largest block is 134.194.0.0 to 134.194.255.255 with 65,536 addresses, geolocated to Sierra Vista (Fort Huachuca).
- IPv4 addresses
- 81,920
- IPv4 prefixes
- 6
- World rank
- #2,141
- IPv6 ranges
- 1
Addresses by country
- United States 100%
Largest blocks
- 134.194.0.0 Sierra Vista (Fort Huachuca)65,536
- 147.241.0.0 Sierra Vista (Fort Huachuca)8,192
- 147.241.168.0 Sierra Vista (Fort Huachuca)4,096
- 147.241.128.0 Sierra Vista (Fort Huachuca)2,048
- 147.241.56.0 Sierra Vista (Fort Huachuca)2,048
Networks of similar size
81,920
81,920
81,920
81,920
81,920
81,920IPv4 prefixes
Questions and answers
Who owns AS289?
Autonomous system AS289 is operated by Headquarters, USAISC.
How many IP addresses does AS289 have?
The network holds 81,920 IPv4 addresses in 6 prefixes, plus 1 IPv6 ranges.
Which country is AS289 in?
The main country is United States.
How big is AS289?
By IPv4 addresses it ranks #2,141 worldwide.
What is the largest address block of AS289?
134.194.0.0 to 134.194.255.255, 65,536 addresses.