AS40427 is the autonomous system of Cisco Systems Ironport Division. It holds 512 IPv4 addresses in 1 prefixes, mainly in 
United States.
By IPv4 addresses the network ranks #56,921 worldwide and #12,001 of 18,202 networks in United States.
The largest block is 194.165.198.0 to 194.165.199.255 with 512 addresses, geolocated to San Jose.
- IPv4 addresses
- 512
- IPv4 prefixes
- 1
- World rank
- #56,921
Addresses by country
- United States 100%
Largest blocks
- 194.165.198.0 San Jose512
Networks of similar size
512
512
512
512
512
512
512IPv4 prefixes
Questions and answers
Who owns AS40427?
Autonomous system AS40427 is operated by Cisco Systems Ironport Division.
How many IP addresses does AS40427 have?
The network holds 512 IPv4 addresses in 1 prefixes.
Which country is AS40427 in?
The main country is United States.
How big is AS40427?
By IPv4 addresses it ranks #56,921 worldwide.
What is the largest address block of AS40427?
194.165.198.0 to 194.165.199.255, 512 addresses.