Autonomous System
AS9687 ICU AS
EducationActiveSouth KoreaAPNIC
AS9687 (ICU-AS-KR) is an education network operated by ICU AS in South Korea, registered with APNIC. It has 15 IPv4 prefixes with 24,576 addresses, which makes it the 6,114th largest of 82,681 active autonomous systems by IPv4 space.
IPv4 addresses24,576in 15 prefixes
IPv6 prefixes0none
Size rank#6,114of 82,681 active ASNs
Details
OrganizationICU AS
AS nameICU-AS-KR
Websitekaist.ac.kr
Country South Korea (KR)
Network typeEducation
RegistryAPNIC
Abuse contactirt@nic.or.kr
Registered—
Last updated2023-06-02
IPv4 prefixes
15 prefixes · 24,576 addresses| Network | Addresses | First – last address |
|---|---|---|
| 124.21.64.0/20 | 4,096 | 124.21.64.0 – 124.21.79.255 |
| 124.21.128.0/20 | 4,096 | 124.21.128.0 – 124.21.143.255 |
| 124.21.192.0/20 | 4,096 | 124.21.192.0 – 124.21.207.255 |
| 124.21.64.0/22 | 1,024 | 124.21.64.0 – 124.21.67.255 |
| 124.21.68.0/22 | 1,024 | 124.21.68.0 – 124.21.71.255 |
| 124.21.72.0/22 | 1,024 | 124.21.72.0 – 124.21.75.255 |
| 124.21.76.0/22 | 1,024 | 124.21.76.0 – 124.21.79.255 |
| 124.21.128.0/22 | 1,024 | 124.21.128.0 – 124.21.131.255 |
| 124.21.132.0/22 | 1,024 | 124.21.132.0 – 124.21.135.255 |
| 124.21.136.0/22 | 1,024 | 124.21.136.0 – 124.21.139.255 |
| 124.21.140.0/22 | 1,024 | 124.21.140.0 – 124.21.143.255 |
| 124.21.192.0/22 | 1,024 | 124.21.192.0 – 124.21.195.255 |
| 124.21.196.0/22 | 1,024 | 124.21.196.0 – 124.21.199.255 |
| 124.21.200.0/22 | 1,024 | 124.21.200.0 – 124.21.203.255 |
| 124.21.204.0/22 | 1,024 | 124.21.204.0 – 124.21.207.255 |
124.21.64.0/20 124.21.128.0/20 124.21.192.0/20 124.21.64.0/22 124.21.68.0/22 124.21.72.0/22 124.21.76.0/22 124.21.128.0/22 124.21.132.0/22 124.21.136.0/22 124.21.140.0/22 124.21.192.0/22 124.21.196.0/22 124.21.200.0/22 124.21.204.0/22
IPv6 prefixes
No IPv6 prefixes.
Query AS9687 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=AS9687&key=YOUR_API_KEY"Any address in its prefixes resolves to AS9687, with or without a key:
curl "https://api.ipapi.is/?q=124.21.64.1"