Autonomous System
AS7377 University of California, San Diego
EducationActiveUnited StatesARIN
AS7377 (UCSD) is an education network operated by University of California, San Diego in United States, registered with ARIN. It has 18 IPv4 prefixes with 12,859,904 addresses and 2 IPv6 prefixes, which makes it the 58th largest of 82,200 active autonomous systems by IPv4 space.
IPv4 addresses12,859,904in 18 prefixes
IPv6 prefixes2≈ 9.9 × 10²⁸ addresses
Size rank#58of 82,200 active ASNs
Details
OrganizationUniversity of California, San Diego
AS nameUCSD
Websiteucsd.edu
Country United States (US)
Network typeEducation
RegistryARIN
Abuse contactjmadden@ucsd.edu
Registered1996-11-25
Last updated2023-12-19
IPv4 prefixes
18 prefixes · 12,859,904 addresses| Network | Addresses | First – last address |
|---|---|---|
| 44.0.0.0/9 | 8,388,608 | 44.0.0.0 – 44.127.255.255 |
| 44.128.0.0/10 | 4,194,304 | 44.128.0.0 – 44.191.255.255 |
| 128.54.0.0/16 | 65,536 | 128.54.0.0 – 128.54.255.255 |
| 132.239.0.0/16 | 65,536 | 132.239.0.0 – 132.239.255.255 |
| 137.110.0.0/16 | 65,536 | 137.110.0.0 – 137.110.255.255 |
| 169.228.0.0/16 | 65,536 | 169.228.0.0 – 169.228.255.255 |
| 69.196.32.0/19 | 8,192 | 69.196.32.0 – 69.196.63.255 |
| 69.196.32.0/20 | 4,096 | 69.196.32.0 – 69.196.47.255 |
| 69.166.11.0/24 | 256 | 69.166.11.0 – 69.166.11.255 |
| 69.196.40.0/24 | 256 | 69.196.40.0 – 69.196.40.255 |
| 192.135.237.0/24 | 256 | 192.135.237.0 – 192.135.237.255 |
| 192.135.238.0/24 | 256 | 192.135.238.0 – 192.135.238.255 |
| 192.154.1.0/24 | 256 | 192.154.1.0 – 192.154.1.255 |
| 198.134.135.0/24 | 256 | 198.134.135.0 – 198.134.135.255 |
| 207.34.0.0/24 | 256 | 207.34.0.0 – 207.34.0.255 |
| 216.21.14.0/24 | 256 | 216.21.14.0 – 216.21.14.255 |
| 216.151.34.0/24 | 256 | 216.151.34.0 – 216.151.34.255 |
| 216.151.38.0/24 | 256 | 216.151.38.0 – 216.151.38.255 |
44.0.0.0/9 44.128.0.0/10 128.54.0.0/16 132.239.0.0/16 137.110.0.0/16 169.228.0.0/16 69.196.32.0/19 69.196.32.0/20 69.166.11.0/24 69.196.40.0/24 192.135.237.0/24 192.135.238.0/24 192.154.1.0/24 198.134.135.0/24 207.34.0.0/24 216.21.14.0/24 216.151.34.0/24 216.151.38.0/24
IPv6 prefixes
2 prefixes- 2607:f720::/32
- 2001:48d0:c000::/34
2607:f720::/32 2001:48d0:c000::/34
Query AS7377 with the API
The ASN lookup returns everything on this page as JSON, including every prefix. ASN lookups need an API key: a free account comes with 1,000 requests a day.
curl "https://api.ipapi.is/?q=AS7377&key=YOUR_API_KEY"Any address in its prefixes resolves to AS7377, with or without a key:
curl "https://api.ipapi.is/?q=44.0.0.1"Largest networks in United States
AS749 United States Department of Defense (DoD)227,464,192 IPv4 addressesAS16509 Amazon.com, Inc.218,038,784 IPv4 addressesAS7018 AT&T Enterprises, LLC117,262,080 IPv4 addressesAS8075 Microsoft Corporation81,463,040 IPv4 addressesAS721 United States Department of Defense (DoD)73,070,080 IPv4 addressesAS7922 Comcast Cable Communications, LLC68,336,896 IPv4 addresses