The IP address 221.146.237 is provided by Korea Telecom, it's belong to the CDIR (Classless Inter-Domain Routing) 221.144.0.0/12 (range 221.144.0.0 to 221.159.255.255). The autonomous system number (ASN) is 4766.
| ASN | 4766 | 
| IP starting by | 221.144.0.0 | 
| IP ending by | 221.159.255.255 | 
| ASN Name | Korea Telecom | 
| CDIR | 221.144.0.0/12 | 
| Numerical IP | |
| Registry | |
| Last update | 23/07/2019 | 

| Country Code | Country | Region | City | Latitude | Longitude | Last update | |
| IP2Location | KR | South Korea | - | Kwangmyong | 37.4772 | 126.8664 | 2019-07-23 | 
| MaxMind | KR | South Korea | - | Seoul | 37.5111 | 126.9743 | 2019-07-23 | 
| Whois | KR | - | - | - | 128 | 36 | |
| W3C | - | - | - | - | - | - | - |