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

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% The objects are in RPSL format.
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% Note: this output has been filtered.
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% Information related to '89.150.19.0 - 89.150.19.255'

% Abuse contact for '89.150.19.0 - 89.150.19.255' is 'network-abuse@btlnet.co.uk'

inetnum:        89.150.19.0 - 89.150.19.255
netname:        UK-BTL-20100301
descr:          Britannic Customer Allocation
country:        GB
admin-c:        ROB187-RIPE
org:            ORG-BTL14-RIPE
tech-c:         ROB187-RIPE
status:         ASSIGNED PA
mnt-by:         robvanoli-mnt
mnt-domains:    robvanoli-mnt
created:        2013-05-13T09:40:32Z
last-modified:  2013-05-13T09:40:32Z
source:         RIPE

organisation:   ORG-BTL14-RIPE
org-name:       Britannic Technologies Ltd
country:        GB
org-type:       LIR
address:        Britannic House, Merrow Business Park
address:        Guildford
address:        GU4 7WA
address:        UNITED KINGDOM
phone:          +441483242584
fax-no:         +448450501001
abuse-c:        AR17537-RIPE
mnt-ref:        RIPE-NCC-HM-MNT
mnt-ref:        btlnoc-mnt
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         btlnoc-mnt
admin-c:        AN33813-RIPE
admin-c:        BTL101-RIPE
tech-c:         NW2688-RIPE
created:        2009-10-30T11:07:44Z
last-modified:  2025-03-27T11:10:54Z
source:         RIPE # Filtered

person:         Rob Vanoli
address:        Britannic House
address:        Merrow Business Park
address:        Guildford
phone:          +44 1483 242 577
nic-hdl:        ROB187-RIPE
mnt-by:         robvanoli-mnt
created:        2010-02-28T21:44:21Z
last-modified:  2010-02-28T21:59:50Z
source:         RIPE

% Information related to '89.150.16.0/20AS50746'

route:          89.150.16.0/20
descr:          BTL-IPv4
origin:         AS50746
mnt-by:         btlnoc-mnt
mnt-by:         nway-mnt
mnt-by:         anash-mnt
created:        2010-03-19T12:45:09Z
last-modified:  2025-10-09T13:55:59Z
source:         RIPE

% This query was served by the RIPE Database Query Service version 1.120 (SHETLAND)