% 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 'AS15965 - AS16057'

as-block:       AS15965 - AS16057
descr:          RIPE NCC ASN block
remarks:        These AS Numbers are assigned to network operators in the RIPE NCC service region.
mnt-by:         RIPE-NCC-HM-MNT
created:        2018-11-22T15:27:26Z
last-modified:  2018-11-22T15:27:26Z
source:         RIPE

% Information related to 'AS16050'

% Abuse contact for 'AS16050' is 'ref.ip-abuse@refinitiv.com'

aut-num:        AS16050
as-name:        Refinitiv-Slough-LO5-res-AS
descr:          Refinitiv Slough-LO5 resiliancy
org:            ORG-RL451-RIPE
import:         from AS1299 accept ANY
import:         from AS6453 accept ANY
import:         from AS3356 accept ANY
export:         to AS1299 announce AS16050
export:         to AS6453 announce AS16050
export:         to AS3356 announce AS16050
admin-c:        RIA32-RIPE
tech-c:         RIT13-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         REF-IP-ADMIN-MNT
created:        2004-04-14T09:30:07Z
last-modified:  2020-12-17T10:06:31Z
source:         RIPE # Filtered

organisation:   ORG-RL451-RIPE
org-name:       Refinitiv Limited
country:        GB
org-type:       LIR
address:        Five Canada Square, Canary Wharf
address:        E14 5AQ
address:        London
address:        UNITED KINGDOM
phone:          +44 20 7250 1122
admin-c:        RIA32-RIPE
tech-c:         RIT13-RIPE
abuse-c:        RIA33-RIPE
mnt-ref:        REF-IP-ADMIN-MNT
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         REF-IP-ADMIN-MNT
created:        2020-03-11T10:36:22Z
last-modified:  2020-12-16T12:41:08Z
source:         RIPE # Filtered

role:           Refinitiv IP Admin
address:        The Thomson Reuters Building 30 South Colonnade, Canary Whar
address:        E14 5EP
address:        London
address:        UNITED KINGDOM
phone:          +44 20 7250 1122
nic-hdl:        RIA32-RIPE
mnt-by:         REF-IP-ADMIN-MNT
created:        2020-03-11T10:36:21Z
last-modified:  2020-03-11T10:36:22Z
source:         RIPE # Filtered

role:           Refinitiv IP Tech
address:        5 Canada Square, London E14 5AQ, United Kingdom
nic-hdl:        RIT13-RIPE
mnt-by:         REF-IP-ADMIN-MNT
created:        2020-05-11T11:54:51Z
last-modified:  2020-05-11T11:54:51Z
source:         RIPE # Filtered

% This query was served by the RIPE Database Query Service version 1.112 (SHETLAND)

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