AS38635 is the autonomous system of Keio University. It holds 131,072 IPv4 addresses in 2 prefixes plus 2 IPv6 ranges, mainly in 
Japan.
By IPv4 addresses the network ranks #1,563 worldwide and #68 of 848 networks in Japan. That is 0.06% of the country’s IPv4 space.
The largest block is 133.27.0.0 to 133.27.255.255 with 65,536 addresses, geolocated to Minato.
- IPv4 addresses
- 131,072
- IPv4 prefixes
- 2
- World rank
- #1,563
- Country share
- 0.06%
- IPv6 ranges
- 2
Addresses by country
- Japan 100%
Largest blocks
- 133.27.0.0 Minato65,536
- 131.113.0.0 Chiyoda65,536
Networks of similar size
- AS26046 Utah State University
131,072 - AS1701 National Aeronautics and Space Administration131,072
- AS15474 Rannsokna- og haskolanet Islands hf.
131,072 - AS1926 Tampere University Foundation
131,072 - AS16519 University of Colorado Denver131,072
- AS1307 Renater
131,072 - AS4729 Japan Atomic Energy Agency131,072
- AS63802 Nippon Telegraph and Telephone East Corporation131,072
IPv4 prefixes
Questions and answers
Who owns AS38635?
Autonomous system AS38635 is operated by Keio University.
How many IP addresses does AS38635 have?
The network holds 131,072 IPv4 addresses in 2 prefixes, plus 2 IPv6 ranges.
Which country is AS38635 in?
The main country is Japan.
How big is AS38635?
By IPv4 addresses it ranks #1,563 worldwide.
What is the largest address block of AS38635?
133.27.0.0 to 133.27.255.255, 65,536 addresses.