AS25 is the autonomous system of University of California at Berkeley. It holds 201,984 IPv4 addresses in 12 prefixes plus 2 IPv6 ranges, mainly in 
United States.
By IPv4 addresses the network ranks #1,058 worldwide and #307 of 18,202 networks in United States. That is 0.01% of the country’s IPv4 space.
The largest block is 169.229.0.0 to 169.229.255.255 with 65,536 addresses, geolocated to Berkeley (South Berkeley).
- IPv4 addresses
- 201,984
- IPv4 prefixes
- 12
- World rank
- #1,058
- Country share
- 0.01%
- IPv6 ranges
- 2
Addresses by country
- United States 100%
Largest blocks
- 169.229.0.0 Berkeley (South Berkeley)65,536
- 136.152.0.0 Oakland (Pill Hill)65,536
- 128.32.0.0 Berkeley (Downtown Berkeley)65,536
- 169.236.240.0 Merced (University of California-Merced)2,048
- 208.68.240.0 Berkeley1,024
- 192.154.4.0 Berkeley (South Berkeley)768
- 192.150.186.0 Berkeley (South Berkeley)512
- 209.129.246.0 Berkeley (South Berkeley)256
Networks of similar size
- AS19399 Region Stockholm
203,008 - AS200656 Nokia Solutions and Networks Oy
202,752 - AS46261 QuickPacket, LLC202,240
- AS21351 Canal + Telecom SAS
201,984 - AS35228 Telefonica UK Limited
201,728 - AS7687 TOYOTA SYSTEMS CORPORATION
200,960 - AS45458 ADVANCED WIRELESS NETWORK COMPANY LIMITED
200,704 - AS34878 Karlsruhe Institute of Technology
200,704
IPv4 prefixes
Questions and answers
Who owns AS25?
Autonomous system AS25 is operated by University of California at Berkeley.
How many IP addresses does AS25 have?
The network holds 201,984 IPv4 addresses in 12 prefixes, plus 2 IPv6 ranges.
Which country is AS25 in?
The main country is United States.
How big is AS25?
By IPv4 addresses it ranks #1,058 worldwide.
What is the largest address block of AS25?
169.229.0.0 to 169.229.255.255, 65,536 addresses.