% 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://apps.db.ripe.net/docs/HTML-Terms-And-Conditions

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

% Information related to '81.161.48.0 - 81.161.51.255'

% Abuse contact for '81.161.48.0 - 81.161.51.255' is 'abuse@welt-net.com'

inetnum:        81.161.48.0 - 81.161.51.255
org:            ORG-WB77-RIPE
netname:        Welt-Net_Malmo
country:        SE
geoloc:         55.605833 13.035833
admin-c:        WBN7-RIPE
tech-c:         WBN7-RIPE
status:         ASSIGNED PA
mnt-by:         weltnet-mnt
created:        2021-06-24T11:37:25Z
last-modified:  2021-06-24T11:57:56Z
source:         RIPE

organisation:   ORG-WB77-RIPE
org-name:       Welt-Net Broadband
org-type:       OTHER
phone:          +13023851044
address:        2810 N Church St, PMB 84353, Wilmington, Delaware 19802-4447
abuse-c:        AD16433-RIPE
mnt-ref:        weltnet-mnt
mnt-by:         weltnet-mnt
created:        2021-06-14T15:47:41Z
last-modified:  2022-04-13T07:32:57Z
source:         RIPE # Filtered

role:           Welt-Net Broadband NOC
address:        Hanauer Landstraße 302, Frankfurt, 60314, Germany
nic-hdl:        WBN7-RIPE
mnt-by:         weltnet-mnt
created:        2021-06-14T15:55:10Z
last-modified:  2021-06-14T15:55:10Z
source:         RIPE # Filtered

% Information related to '81.161.48.0/22AS50835'

route:          81.161.48.0/22
origin:         AS50835
descr:          Welt-Net Scania
mnt-by:         weltnet-mnt
created:        2021-06-24T11:36:50Z
last-modified:  2021-06-24T11:43:16Z
source:         RIPE

% This query was served by the RIPE Database Query Service version 1.111 (BUSA)

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