% 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 '2a00:2381:72d::/48'

% Abuse contact for '2a00:2381:72d::/48' is 'protect@bt.com'

inet6num:       2a00:2381:72d::/48
netname:        THE-ISLE-OF-PORTLAND-ALDRIDGE-COMMUNITY-ACADEMY
descr:          0301129690 The Isle Of Portland Aldridge Community Academy
country:        GB
admin-c:        BI643-RIPE
tech-c:         BI643-RIPE
status:         AGGREGATED-BY-LIR
assignment-size:       56
mnt-by:         BTNET-MNT
mnt-lower:      BTNET-MNT
mnt-routes:     BTNET-MNT
remarks:        Please send abuse notification to abuse@bt.net
remarks:        Please send delisting issues to ip.address.management.account@bt.com
remarks:        This range is statically assigned
created:        2013-08-02T11:18:53Z
last-modified:  2013-08-02T11:18:53Z
source:         RIPE

role:           BTnet IPM
address:        pp HWG298
address:        Virtual Postbox (HOM-NX)
address:        PO Box 400
address:        London
address:        N18 1XU
address:        GB
phone:          +44 3316662729
phone:          +44 3316672729
admin-c:        BY73-RIPE
tech-c:         BY73-RIPE
tech-c:         CS820-RIPE
tech-c:         GF1231-RIPE
tech-c:         MG12414-RIPE
tech-c:         CD301-RIPE
nic-hdl:        BI643-RIPE
mnt-by:         BTNET-MNT
created:        2012-03-29T16:26:52Z
last-modified:  2014-02-05T11:34:24Z
source:         RIPE # Filtered

% Information related to '2a00:2380::/25AS2856'

route6:         2a00:2380::/25
descr:          BT UK aggregate
origin:         AS2856
mnt-by:         CIP-MNT
mnt-by:         BTNET-MNT
mnt-by:         BTENT-MNT
created:        2013-11-18T09:53:59Z
last-modified:  2013-11-18T09:53:59Z
source:         RIPE

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