% APNIC found the following authoritative answer from: whois.apnic.net

% [whois.apnic.net]
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% Information related to '223.191.0.0 - 223.191.63.255'

% Abuse contact for '223.191.0.0 - 223.191.63.255' is 'ip.misuse@airtel.com'

inetnum:        223.191.0.0 - 223.191.63.255
netname:        KOLKATA-WEST-BENGAL
descr:          Bharti Airtel Office, GP Block, Sector V, Salt Lake City, Kolkata, West Bengal 700091
country:        IN
geoloc:         22.5697 88.3697
admin-c:        NA40-AP
tech-c:         NA40-AP
abuse-c:        AB1077-AP
status:         ASSIGNED NON-PORTABLE
notify:         raghvendra.agarwal@airtel.com
mnt-by:         MAINT-IN-MOBILITY
mnt-irt:        IRT-BHARTI-MO-IN
last-modified:  2021-01-06T04:45:35Z
source:         APNIC

irt:            IRT-BHARTI-MO-IN
address:        Bharti Airtel Ltd.
address:        Airtel Center, Plot No. 16 Udhyog Vihar
address:        Gurgaon, India
e-mail:         Rahul3.Jain@airtel.com
abuse-mailbox:  ip.misuse@airtel.com
admin-c:        RJ777-AP
tech-c:         RJ777-AP
auth:           # Filtered
remarks:        ip.misuse@airtel.com is invalid
remarks:        rahul3.jain@airtel.com was validated on 2024-10-09
mnt-by:         MAINT-IN-MOBILITY
last-modified:  2024-10-09T08:08:17Z
source:         APNIC

role:           ABUSE BHARTIMOIN
country:        ZZ
address:        Bharti Airtel Ltd.
address:        Airtel Center, Plot No. 16 Udhyog Vihar
address:        Gurgaon, India
phone:          +000000000
e-mail:         Rahul3.Jain@airtel.com
admin-c:        RJ777-AP
tech-c:         RJ777-AP
nic-hdl:        AB1077-AP
remarks:        Generated from irt object IRT-BHARTI-MO-IN
remarks:        ip.misuse@airtel.com is invalid
remarks:        rahul3.jain@airtel.com was validated on 2024-10-09
abuse-mailbox:  ip.misuse@airtel.com
mnt-by:         APNIC-ABUSE
last-modified:  2024-10-09T08:08:48Z
source:         APNIC

person:         Network Administrator
nic-hdl:        NA40-AP
e-mail:         noc-dataprov@airtel.com
address:        Bharti Airtel Ltd.
address:        ISP Division - Transport Network Group
address:        Plot no.16 , Udyog Vihar , Phase -IV , Gurgaon - 122015 , Haryana , INDIA
address:        Phase III, New Delhi-110020, INDIA
phone:          +91-124-4222222
fax-no:         +91-124-4244017
country:        IN
mnt-by:         MAINT-IN-BBIL
last-modified:  2018-12-18T12:52:19Z
source:         APNIC

% Information related to '223.191.0.0/16AS45609'

route:          223.191.0.0/16
descr:          BHARTI-AIRTEL-LTD-MOBILITY-SERVICES-IN
descr:          2nd Floor, Spectrum Tower, Mindspace, Malad, Mumbai
origin:         AS45609
country:        IN
mnt-lower:      MAINT-IN-MOBILITY
mnt-routes:     MAINT-IN-MOBILITY
mnt-by:         MAINT-IN-MOBILITY
last-modified:  2011-03-02T10:54:35Z
source:         APNIC

% This query was served by the APNIC Whois Service version 1.88.25 (WHOIS-AU3)