Autonomous System
AS1201 Old Dominion University
EducationActiveUnited StatesARIN
AS1201 (ASN-ODU-AS-AS) is an education network operated by Old Dominion University in United States, registered with ARIN. It has 29 IPv4 prefixes with 261,632 addresses, which makes it the 1,075th largest of 82,200 active autonomous systems by IPv4 space.
IPv4 addresses261,632in 29 prefixes
IPv6 prefixes0none
Size rank#1,075of 82,200 active ASNs
Details
OrganizationOld Dominion University
AS nameASN-ODU-AS-AS
Websiteodu.edu
Country United States (US)
Network typeEducation
RegistryARIN
Abuse contactabuse@odu.edu
Registered1990-12-18
Last updated2019-08-12
IPv4 prefixes
29 prefixes · 261,632 addresses| Network | Addresses | First – last address |
|---|---|---|
| 128.82.0.0/16 | 65,536 | 128.82.0.0 – 128.82.255.255 |
| 157.21.0.0/16 | 65,536 | 157.21.0.0 – 157.21.255.255 |
| 128.82.128.0/17 | 32,768 | 128.82.128.0 – 128.82.255.255 |
| 128.82.64.0/18 | 16,384 | 128.82.64.0 – 128.82.127.255 |
| 157.21.0.0/18 | 16,384 | 157.21.0.0 – 157.21.63.255 |
| 157.21.64.0/18 | 16,384 | 157.21.64.0 – 157.21.127.255 |
| 157.21.128.0/18 | 16,384 | 157.21.128.0 – 157.21.191.255 |
| 157.21.192.0/18 | 16,384 | 157.21.192.0 – 157.21.255.255 |
| 128.82.0.0/21 | 2,048 | 128.82.0.0 – 128.82.7.255 |
| 128.82.40.0/21 | 2,048 | 128.82.40.0 – 128.82.47.255 |
| 128.82.48.0/21 | 2,048 | 128.82.48.0 – 128.82.55.255 |
| 128.82.56.0/21 | 2,048 | 128.82.56.0 – 128.82.63.255 |
| 128.82.8.0/22 | 1,024 | 128.82.8.0 – 128.82.11.255 |
| 128.82.12.0/23 | 512 | 128.82.12.0 – 128.82.13.255 |
| 128.82.14.0/23 | 512 | 128.82.14.0 – 128.82.15.255 |
| 128.82.16.0/23 | 512 | 128.82.16.0 – 128.82.17.255 |
| 128.82.18.0/23 | 512 | 128.82.18.0 – 128.82.19.255 |
| 128.82.28.0/23 | 512 | 128.82.28.0 – 128.82.29.255 |
| 128.82.30.0/23 | 512 | 128.82.30.0 – 128.82.31.255 |
| 128.82.32.0/23 | 512 | 128.82.32.0 – 128.82.33.255 |
| 128.82.34.0/23 | 512 | 128.82.34.0 – 128.82.35.255 |
| 128.82.36.0/23 | 512 | 128.82.36.0 – 128.82.37.255 |
| 128.82.38.0/23 | 512 | 128.82.38.0 – 128.82.39.255 |
| 128.82.20.0/24 | 256 | 128.82.20.0 – 128.82.20.255 |
| 128.82.21.0/24 | 256 | 128.82.21.0 – 128.82.21.255 |
128.82.0.0/16 157.21.0.0/16 128.82.128.0/17 128.82.64.0/18 157.21.0.0/18 157.21.64.0/18 157.21.128.0/18 157.21.192.0/18 128.82.0.0/21 128.82.40.0/21 128.82.48.0/21 128.82.56.0/21 128.82.8.0/22 128.82.12.0/23 128.82.14.0/23 128.82.16.0/23 128.82.18.0/23 128.82.28.0/23 128.82.30.0/23 128.82.32.0/23 128.82.34.0/23 128.82.36.0/23 128.82.38.0/23 128.82.20.0/24 128.82.21.0/24
The 25 largest of 29. The API and the database have all of them.
IPv6 prefixes
No IPv6 prefixes.
Query AS1201 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=AS1201&key=YOUR_API_KEY"Any address in its prefixes resolves to AS1201, with or without a key:
curl "https://api.ipapi.is/?q=128.82.0.1"Largest networks in United States
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