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% APNIC found the following authoritative answer from: whois.apnic.net
% [whois.apnic.net] % Whois data copyright terms http://www.apnic.net/db/dbcopyright.html
% Information related to '103.156.42.0 - 103.156.43.255'
% Abuse contact for '103.156.42.0 - 103.156.43.255' is 'hm-changed@vnnic.vn'
inetnum: 103.156.42.0 - 103.156.43.255 netname: MOBIFONE-TCTK-VN descr: Charge and Accouting Center - Branch of Mobifone Corp. descr: No. 5, 82 Lane, Duy Tan, Dich Vong Hau, Cau Giay, Hanoi admin-c: TVT16-AP tech-c: LCT19-AP remarks: send spam and abuse report to trung.le@mobifone.vn country: VN mnt-irt: IRT-VNNIC-AP mnt-by: MAINT-VN-VNNIC mnt-lower: MAINT-VN-VNNIC mnt-routes: MAINT-VN-VNNIC status: ALLOCATED PORTABLE last-modified: 2020-09-21T02:48:29Z source: APNIC
irt: IRT-VNNIC-AP address: Ha Noi, VietNam phone: +84-24-35564944 fax-no: +84-24-37821462 e-mail: hm-changed@vnnic.vn abuse-mailbox: hm-changed@vnnic.vn admin-c: NTTT1-AP tech-c: NTTT1-AP auth: # Filtered mnt-by: MAINT-VN-VNNIC last-modified: 2017-11-08T09:40:06Z source: APNIC
person: Le Cong Trung address: MOBIFONE-TCTK-VN country: VN phone: +84-904848688 e-mail: trung.le@mobifone.vn nic-hdl: LCT19-AP mnt-by: MAINT-VN-VNNIC last-modified: 2020-09-21T02:24:07Z source: APNIC
person: Tran Van Thuy address: MOBIFONE-TCTK-VN country: VN phone: +84-903404096 e-mail: thuy.tranvan@mobifone.vn nic-hdl: TVT16-AP mnt-by: MAINT-VN-VNNIC last-modified: 2020-09-21T02:23:30Z source: APNIC
% Information related to '103.156.42.0/24AS131429'
route: 103.156.42.0/24 descr: MOBIFONE-TCTK-VN origin: AS131429 mnt-by: MAINT-VN-VNNIC last-modified: 2021-03-30T05:51:02Z source: APNIC
% This query was served by the APNIC Whois Service version 1.88.25 (WHOIS-AU1)
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-T
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Include "AS" in front of an AS number.Example: AS4808
Include "-t" (template only) or "-v" (template and description) in front of an object name to view the templateExample: -t inetnum
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