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

% This is the RIPE Database query service.
% The objects are in RPSL format.
%
% The RIPE Database is subject to Terms and Conditions.
% See https://docs.db.ripe.net/terms-conditions.html

% Note: this output has been filtered.
%       To receive output for a database update, use the "-B" flag.

% Information related to '83.136.48.0 - 83.136.48.255'

% Abuse contact for '83.136.48.0 - 83.136.48.255' is 'abuse@smarthost.net'

inetnum:        83.136.48.0 - 83.136.48.255
geoloc:         30.33218 -81.65565
netname:        SMARTHOST-LEASE
country:        US
admin-c:        SA39571-RIPE
tech-c:         SA39571-RIPE
abuse-c:        AR52414-RIPE
status:         ASSIGNED PA
mnt-by:         SMARTHOST
mnt-routes:     SMARTHOST
mnt-domains:    SMARTHOST
created:        2020-06-24T20:39:02Z
last-modified:  2020-08-02T20:15:32Z
source:         RIPE
mnt-by:         ALAXONA

person:         Shawn Arcus
address:        PO Box 530507, Henderson, Nevada 89053-0507, USA
phone:          +1 (702) 425-6205
nic-hdl:        SA39571-RIPE
mnt-by:         SMARTHOST
created:        2019-04-23T18:19:06Z
last-modified:  2020-12-30T10:14:56Z
source:         RIPE

% Information related to '83.136.48.0/24AS19844'

route:          83.136.48.0/24
origin:         AS19844
mnt-by:         mnt-us-smarthost-1
mnt-by:         SMARTHOST
created:        2020-06-24T20:58:42Z
last-modified:  2020-06-24T20:58:42Z
source:         RIPE

% Information related to '83.136.48.0/24AS210953'

route:          83.136.48.0/24
origin:         AS210953
mnt-by:         SMARTHOST
mnt-by:         ALAXONA
created:        2021-08-16T20:16:15Z
last-modified:  2021-08-16T20:16:15Z
source:         RIPE

% Information related to '83.136.48.0/24AS398779'

route:          83.136.48.0/24
origin:         AS398779
mnt-by:         mnt-us-smarthost-1
created:        2024-09-21T01:27:41Z
last-modified:  2024-09-21T01:27:41Z
source:         RIPE

% This query was served by the RIPE Database Query Service version 1.114 (ABERDEEN)

Search for
IP address lookups			Miscellaneous queries
-l	1st level less specific		-i	Inverse attributes	None admin-c admin-c,tech-c,zone-c author cross-mnt cross-nfy local-as mbrs-by-ref member-of mnt-by mnt-lower mnt-nfy mnt-routes notify nserver origin person referral-by rev-srv sub-dom tech-c upd-to zone-c
-L	All less specific		-T	Object types	All as-block as-set aut-num domain filter-set inet-rtr inet6num inetnum irt key-cert mntner peering-set person role route route-set rtr-set
-m	1st level more specific
-M	All more specific		Query hints 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 template Example: -t inetnum
-x	Exact match only
-d	Associated reverse domain