% 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 '217.140.106.0 - 217.140.106.255'

% Abuse contact for '217.140.106.0 - 217.140.106.255' is 'hostmaster@arm.com'

inetnum:        217.140.106.0 - 217.140.106.255
netname:        ARM-CAM-2
country:        GB
admin-c:        AN32952-RIPE
geoloc:         52.1817238 0.1766772
tech-c:         AN32952-RIPE
status:         ASSIGNED PA
mnt-by:         MNT-ARM
created:        2018-07-13T13:55:15Z
last-modified:  2022-07-05T09:41:58Z
source:         RIPE

role:           ARM NOC
address:        Global Headquarters: 110 Fulbourn Road, Cambridge, CB1 9NJ, United Kingdom
nic-hdl:        AN32952-RIPE
mnt-by:         MNT-ARM
mnt-by:         MNT-ARM
created:        2022-07-05T09:26:58Z
last-modified:  2022-07-05T09:26:58Z
source:         RIPE # Filtered

% Information related to '217.140.96.0/20AS28939'

route:          217.140.96.0/20
descr:          ARM-NET
origin:         AS28939
mnt-by:         MNT-ARM
created:        2004-12-03T14:21:52Z
last-modified:  2004-12-03T14:21:52Z
source:         RIPE

% This query was served by the RIPE Database Query Service version 1.116 (DEXTER)