Autonomous System
AS1237 KISTI
BusinessActiveSouth KoreaAPNIC
AS1237 (KREONET-AS-KR-KR) is a business network operated by KISTI in South Korea, registered with APNIC. It has 212 IPv4 prefixes with 306,944 addresses and 1 IPv6 prefix, which makes it the 945th largest of 82,200 active autonomous systems by IPv4 space.
IPv4 addresses306,944in 212 prefixes
IPv6 prefixes1≈ 7.9 × 10²⁸ addresses
Size rank#945of 82,200 active ASNs
Details
OrganizationKISTI
AS nameKREONET-AS-KR-KR
Websitekisti.re.kr
Country South Korea (KR)
Network typeBusiness
RegistryAPNIC
Abuse contactirt@nic.or.kr
Registered—
Last updated2020-09-11
IPv4 prefixes
212 prefixes · 306,944 addresses| Network | Addresses | First – last address |
|---|---|---|
| 134.75.0.0/16 | 65,536 | 134.75.0.0 – 134.75.255.255 |
| 150.183.0.0/16 | 65,536 | 150.183.0.0 – 150.183.255.255 |
| 203.250.192.0/18 | 16,384 | 203.250.192.0 – 203.250.255.255 |
| 203.250.0.0/19 | 8,192 | 203.250.0.0 – 203.250.31.255 |
| 210.119.64.0/19 | 8,192 | 210.119.64.0 – 210.119.95.255 |
| 203.247.192.0/20 | 4,096 | 203.247.192.0 – 203.247.207.255 |
| 203.253.96.0/20 | 4,096 | 203.253.96.0 – 203.253.111.255 |
| 203.254.176.0/20 | 4,096 | 203.254.176.0 – 203.254.191.255 |
| 210.107.160.0/20 | 4,096 | 210.107.160.0 – 210.107.175.255 |
| 210.110.144.0/20 | 4,096 | 210.110.144.0 – 210.110.159.255 |
| 210.119.48.0/20 | 4,096 | 210.119.48.0 – 210.119.63.255 |
| 210.125.32.0/20 | 4,096 | 210.125.32.0 – 210.125.47.255 |
| 147.47.120.0/21 | 2,048 | 147.47.120.0 – 147.47.127.255 |
| 203.230.24.0/21 | 2,048 | 203.230.24.0 – 203.230.31.255 |
| 203.230.64.0/21 | 2,048 | 203.230.64.0 – 203.230.71.255 |
| 203.241.40.0/21 | 2,048 | 203.241.40.0 – 203.241.47.255 |
| 203.250.96.0/21 | 2,048 | 203.250.96.0 – 203.250.103.255 |
| 203.250.112.0/21 | 2,048 | 203.250.112.0 – 203.250.119.255 |
| 203.250.160.0/21 | 2,048 | 203.250.160.0 – 203.250.167.255 |
| 203.250.176.0/21 | 2,048 | 203.250.176.0 – 203.250.183.255 |
| 210.98.48.0/21 | 2,048 | 210.98.48.0 – 210.98.55.255 |
| 210.107.152.0/21 | 2,048 | 210.107.152.0 – 210.107.159.255 |
| 210.110.128.0/21 | 2,048 | 210.110.128.0 – 210.110.135.255 |
| 210.110.224.0/21 | 2,048 | 210.110.224.0 – 210.110.231.255 |
| 210.117.240.0/21 | 2,048 | 210.117.240.0 – 210.117.247.255 |
134.75.0.0/16 150.183.0.0/16 203.250.192.0/18 203.250.0.0/19 210.119.64.0/19 203.247.192.0/20 203.253.96.0/20 203.254.176.0/20 210.107.160.0/20 210.110.144.0/20 210.119.48.0/20 210.125.32.0/20 147.47.120.0/21 203.230.24.0/21 203.230.64.0/21 203.241.40.0/21 203.250.96.0/21 203.250.112.0/21 203.250.160.0/21 203.250.176.0/21 210.98.48.0/21 210.107.152.0/21 210.110.128.0/21 210.110.224.0/21 210.117.240.0/21
The 25 largest of 212. The API and the database have all of them.
IPv6 prefixes
1 prefix- 2001:320::/32
2001:320::/32
Query AS1237 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=AS1237&key=YOUR_API_KEY"Any address in its prefixes resolves to AS1237, with or without a key:
curl "https://api.ipapi.is/?q=134.75.0.1"