>>288
Query 211.21.170.223 at whois.apnic.net:43
% [whois.apnic.net node-1]
% Whois data copyright terms http://www.apnic.net/db/dbcopyright.html

inetnum: 211.21.0.0 - 211.21.255.255
netname: HINET-TW

（省略）

inetnum: 211.21.170.223 - 211.21.170.223
netname: CHEN-KUN-SHAN-TY-TW
descr: CHTD, Chunghwa Telecom Co., Ltd.
Ｂoo81かな？