% 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 '2a01:4b00::/32'

% Abuse contact for '2a01:4b00::/32' is 'abuse@hyperoptic.com'

inet6num:       2a01:4b00::/32
netname:        UK-BCUBE-20110225
country:        GB
org:            ORG-BL107-RIPE
admin-c:        SA7920-RIPE
tech-c:         SA7920-RIPE
status:         ALLOCATED-BY-RIR
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         MNT-BCUBE
mnt-routes:     MNT-BCUBE
created:        2011-02-25T14:24:47Z
last-modified:  2018-06-28T10:03:31Z
source:         RIPE # Filtered

organisation:   ORG-BL107-RIPE
org-name:       Hyperoptic Ltd
country:        GB
org-type:       LIR
address:        Kings House, 174 Hammersmith Road
address:        W6 7JP
address:        London
address:        UNITED KINGDOM
phone:          +44333 332 1144
fax-no:         +448082802390
tech-c:         SA7920-RIPE
mnt-ref:        RIPE-NCC-HM-MNT
mnt-ref:        MNT-BCUBE
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         MNT-BCUBE
admin-c:        SA7920-RIPE
abuse-c:        SA31055-RIPE
created:        2010-11-15T13:07:00Z
last-modified:  2022-03-18T09:39:16Z
source:         RIPE # Filtered

person:         Bojan Loncar
address:        Hyperoptic Ltd
address:        Hythe House
address:        200 Shepherds Bush Road
address:        London, W6 7NL
phone:          +44 333 332 1100
nic-hdl:        SA7920-RIPE
mnt-by:         SA68532-MNT
created:        2011-06-13T09:58:23Z
last-modified:  2017-10-30T22:14:00Z
source:         RIPE # Filtered

% Information related to '2a01:4b00::/32AS56478'

route6:         2a01:4b00::/32
origin:         AS56478
mnt-by:         MNT-BCUBE
created:        2016-09-21T16:22:56Z
last-modified:  2017-05-25T10:34:26Z
source:         RIPE
descr:          Hyperoptic LTD

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

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