% 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 '211.138.0.0 - 211.138.15.255'

% Abuse contact for '211.138.0.0 - 211.138.15.255' is 'abuse@chinamobile.com'

inetnum:        211.138.0.0 - 211.138.15.255
netname:        CMNET-hebei
descr:          China Mobile Communications Corporation - hebei
country:        CN
admin-c:        XC235-AP
tech-c:         XC235-AP
abuse-c:        AC2006-AP
status:         ALLOCATED NON-PORTABLE
remarks:        ------------------------------
remarks:        Please send abuse e-mail to
remarks:        caoxuefeng@he.chinamobile.com
remarks:        Please send probe e-mail to
remarks:        caoxuefeng@he.chinamobile.com
remarks:        -------------------------------
mnt-by:         MAINT-CN-CMCC
mnt-irt:        IRT-CHINAMOBILE-CN
mnt-lower:      MAINT-CN-CMCC-hebei
last-modified:  2025-03-05T01:35:45Z
source:         APNIC

irt:            IRT-CHINAMOBILE-CN
address:        China Mobile Communications Corporation
address:        29, Jinrong Ave., Xicheng District, Beijing, 100032
e-mail:         abuse@chinamobile.com
abuse-mailbox:  abuse@chinamobile.com
admin-c:        CT74-AP
tech-c:         CT74-AP
auth:           # Filtered
remarks:        abuse@chinamobile.com was validated on 2025-09-15
mnt-by:         MAINT-CN-CMCC
last-modified:  2025-11-18T00:26:27Z
source:         APNIC

role:           ABUSE CHINAMOBILECN
country:        ZZ
address:        China Mobile Communications Corporation
address:        29, Jinrong Ave., Xicheng District, Beijing, 100032
phone:          +000000000
e-mail:         abuse@chinamobile.com
admin-c:        CT74-AP
tech-c:         CT74-AP
nic-hdl:        AC2006-AP
remarks:        Generated from irt object IRT-CHINAMOBILE-CN
remarks:        abuse@chinamobile.com was validated on 2025-09-15
abuse-mailbox:  abuse@chinamobile.com
mnt-by:         APNIC-ABUSE
last-modified:  2025-09-15T02:20:13Z
source:         APNIC

person:         xuefeng cao
nic-hdl:        XC235-AP
e-mail:         caoxuefeng@he.chinamobile.com
address:        No.136,Dongfeng Road,Shijiazhuang City,hebei,050021, P.R.C.
phone:          +86-13903110082
fax-no:         +86-0311-8633990
country:        cn
mnt-by:         MAINT-NEW
last-modified:  2008-09-04T07:29:24Z
source:         APNIC

% Information related to '211.138.0.0/20AS24547'

route:          211.138.0.0/20
origin:         AS24547
descr:          China Mobile
                29, Jinrong Ave.
mnt-by:         MAINT-CN-CMCC
last-modified:  2021-12-10T04:55:16Z
source:         APNIC

% This query was served by the APNIC Whois Service version 1.88.34 (WHOIS-AU4)