203.253.0.0/16
21 assigned ranges in this /16.
/24 breakdown
| Block | Top country | Countries | ASNs | Ranges |
|---|---|---|---|---|
| 203.253.0.0/24 | South Korea (100%) | 1 | 1 | 1 |
| 203.253.31.0/24 | South Korea (100%) | 1 | 1 | 1 |
| 203.253.64.0/24 | South Korea (100%) | 1 | 1 | 1 |
| 203.253.96.0/24 | South Korea (100%) | 1 | 1 | 1 |
| 203.253.128.0/24 | South Korea (100%) | 1 | 1 | 1 |
| 203.253.132.0/24 | South Korea (100%) | 1 | 1 | 1 |
| 203.253.135.0/24 | South Korea (100%) | 1 | 1 | 1 |
| 203.253.144.0/24 | South Korea (100%) | 1 | 1 | 1 |
| 203.253.160.0/24 | South Korea (100%) | 1 | 1 | 1 |
| 203.253.192.0/24 | South Korea (100%) | 1 | 1 | 1 |
| 203.253.224.0/24 | South Korea (100%) | 1 | 1 | 1 |
| 203.253.227.0/24 | South Korea (100%) | 1 | 1 | 1 |
| 203.253.230.0/24 | South Korea (100%) | 1 | 1 | 1 |
| 203.253.232.0/24 | South Korea (100%) | 1 | 1 | 1 |
| 203.253.234.0/24 | South Korea (100%) | 1 | 1 | 1 |
| 203.253.237.0/24 | South Korea (100%) | 1 | 1 | 1 |
| 203.253.238.0/24 | South Korea (100%) | 1 | 1 | 1 |
| 203.253.239.0/24 | South Korea (100%) | 1 | 1 | 1 |
| 203.253.248.0/24 | South Korea (100%) | 1 | 1 | 1 |
| 203.253.251.0/24 | South Korea (100%) | 1 | 1 | 1 |
| 203.253.254.0/24 | South Korea (100%) | 1 | 1 | 1 |
Assigned ranges
| Range | ASN | Org | Country |
|---|---|---|---|
203.253.0.0 – 203.253.30.255 | AS9318 | SK Broadband Co Ltd | KR |
203.253.31.0 – 203.253.47.255 | AS4766 | Korea Telecom | KR |
203.253.64.0 – 203.253.95.255 | AS9572 | Hankuk University of Foreign Studies Computer Center | KR |
203.253.96.0 – 203.253.111.255 | AS1237 | KISTI | KR |
203.253.128.0 – 203.253.131.255 | AS4766 | Korea Telecom | KR |
203.253.132.0 – 203.253.134.255 | AS2385 | KRIBB(Korea Research Institute of Bioscience Biotechnology) | KR |
203.253.135.0 – 203.253.143.255 | AS1237 | KISTI | KR |
203.253.144.0 – 203.253.159.255 | AS10159 | Korea Aerospace University | KR |
203.253.160.0 – 203.253.191.255 | AS3786 | LG DACOM Corporation | KR |
203.253.192.0 – 203.253.223.255 | AS18026 | JEJU NATIONAL UNIVERSITY | KR |
203.253.224.0 – 203.253.226.255 | AS1237 | KISTI | KR |
203.253.227.0 – 203.253.229.255 | AS45984 | Dongnam Institute of Radiologycal Sciences | KR |
203.253.230.0 – 203.253.231.255 | AS1237 | KISTI | KR |
203.253.232.0 – 203.253.232.255 | AS17576 | National Research Foundation of Korea | KR |
203.253.234.0 – 203.253.236.255 | AS1237 | KISTI | KR |
6 more ranges in this block.