% 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 'AS15400 - AS15474'

as-block:       AS15400 - AS15474
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:        2018-11-22T15:27:25Z
last-modified:  2018-11-22T15:27:25Z
source:         RIPE

% Information related to 'AS15430'

% Abuse contact for 'AS15430' is 'noc@eurodyn.com'

aut-num:        AS15430
as-name:        UNSPECIFIED
org:            ORG-KCB1-RIPE
import:         from AS6799
                accept ANY
import:         from AS6762
                accept ANY
export:         to AS6799
                announce AS15430
export:         to AS6762
                announce AS15430
default:        to AS6799
                networks ANY
default:        to AS6762
                networks ANY
admin-c:        SD147-RIPE
tech-c:         SD147-RIPE
status:         ASSIGNED
mnt-by:         AS15430-MNT
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         LIR-NL-KENNEMER-MNT
created:        1970-01-01T00:00:00Z
last-modified:  2017-11-15T09:15:28Z
source:         RIPE

organisation:   ORG-KCB1-RIPE
org-name:       European Dynamics S.A.
country:        GR
org-type:       LIR
address:        18, Fragoklissias str.& 53, Samou
                str.
address:        151 25 Maroussi
address:        Athens
address:        GREECE
phone:          +30 210 8094500
fax-no:         +30 210 8094508
abuse-c:        AR16214-RIPE
admin-c:        ND1039-RIPE
admin-c:        SD147-RIPE
mnt-by:         LIR-NL-KENNEMER-MNT
mnt-ref:        LIR-NL-KENNEMER-MNT
mnt-ref:        RIPE-NCC-HM-MNT
mnt-by:         RIPE-NCC-HM-MNT
created:        2004-04-17T11:42:00Z
last-modified:  2022-11-21T11:12:31Z
source:         RIPE # Filtered

person:         Steven Davey
address:        European Dynamics
address:        Fragoklissias 18 &  Samou 53 str.
address:        151 25 Maroussi, Athens
address:        Greece
phone:          +30 210 8094500
fax-no:         +30 210 8094508
nic-hdl:        SD147-RIPE
created:        2001-11-29T10:47:18Z
last-modified:  2022-12-01T12:56:23Z
source:         RIPE # Filtered
mnt-by:         LIR-NL-KENNEMER-MNT

% 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