% 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 '103.199.136.0 - 103.199.139.255'

% Abuse contact for '103.199.136.0 - 103.199.139.255' is 'vinayd@joister.net'

inetnum:        103.199.136.0 - 103.199.139.255
netname:        JOISTER-DSOUZACABLE
descr:          DSOUZA CABLE NETWORK
admin-c:        MN504-AP
tech-c:         MN504-AP
country:        IN
mnt-by:         MAINT-IN-IRINN
mnt-irt:        IRT-JOISTERDSOUZACABLE-IN
mnt-routes:     MAINT-IN-JOISTERDSOUZACABLE
mnt-routes:     MAINT-IN-IRINN
status:         ASSIGNED PORTABLE
last-modified:  2025-08-11T22:51:48Z
source:         APNIC

irt:            IRT-JOISTERDSOUZACABLE-IN
address:        SHOP NO 2A MATOSHRI NIWAS CHL KAJUPADA PIPE LANE KURLA WEST,Mumbai,Maharashtra-400072
e-mail:         nikunj@joister.net
abuse-mailbox:  vinayd@joister.net
admin-c:        MN504-AP
tech-c:         MN504-AP
auth:           # Filtered
mnt-by:         MAINT-IN-JOISTERDSOUZACABLE
mnt-by:         MAINT-IN-IRINN
last-modified:  2025-11-18T00:30:24Z
source:         APNIC

role:           manager noc
address:        SHOP NO 2A MATOSHRI NIWAS CHL KAJUPADA PIPE LANE KURLA WEST,Mumbai,Maharashtra-400072
country:        IN
phone:          +91 02261356101
e-mail:         nikunj@joister.net
admin-c:        DD749-AP
tech-c:         DD749-AP
nic-hdl:        MN504-AP
mnt-by:         MAINT-IN-JOISTERDSOUZACABLE
mnt-by:         MAINT-IN-IRINN
last-modified:  2025-09-27T09:56:34Z
source:         APNIC

% Information related to '103.199.139.0/24AS45194'

route:          103.199.139.0/24
descr:          Route & ROA
country:        IN
origin:         AS45194
mnt-by:         MAINT-IN-JOISTERDSOUZACABLE
mnt-by:         MAINT-IN-IRINN
mnt-routes:     MAINT-IN-IRINN
last-modified:  2025-12-14T22:18:24Z
source:         APNIC

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