IP List distribution Castle (1-4 season), total 5
| IP | Country | City | ISP |
|---|---|---|---|
| 110.8.139.137 | Republic of Korea | SK Broadband | |
| 116.84.104.169 | Republic of Korea | Incheon | IIAC |
| 121.185.196.113 | Republic of Korea | Korea Telecom | |
| 122.199.108.211 | Republic of Korea | Saero Network Service | |
| 180.66.150.162 | Republic of Korea | Incheon | SK Broadband |