% 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 'AS31246 - AS31618'

as-block:       AS31246 - AS31618
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:        2018-11-22T15:27:33Z
last-modified:  2018-11-22T15:27:33Z
source:         RIPE

% Information related to 'AS31398'

% Abuse contact for 'AS31398' is 'abuse@colt.net'

aut-num:        AS31398
as-name:        NEC-EU-AS
import:         from AS1273 accept ANY
import:         from AS702 accept ANY
import:         from AS8220 accept ANY
export:         to AS1273 announce AS31398
export:         to AS702 announce AS31398
export:         to AS8220 announce AS31398
org:            ORG-NEL3-RIPE
sponsoring-org: ORG-CI9-RIPE
admin-c:        NEH4-RIPE
tech-c:         NEH4-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         NEC-EU-MNT
mnt-by:         COLT-UK
created:        2004-05-05T13:27:15Z
last-modified:  2021-02-16T13:39:46Z
source:         RIPE

organisation:   ORG-NEL3-RIPE
org-name:       NEC Europe LTD
country:        GB
org-type:       OTHER
address:        NEC Europe LTD NEC House 1 Victoria Road W3 6BL London
abuse-c:        AR28755-RIPE
mnt-ref:        NEC-EU-MNT
mnt-by:         NEC-EU-MNT
mnt-by:         COLT-UK
created:        2004-05-04T10:29:28Z
last-modified:  2022-12-01T16:39:06Z
source:         RIPE # Filtered

role:           NEC Europe Hostmaster
address:        Athene, Odyssey Business Park, West End Road, South Ruislip, HA4 6QE
abuse-mailbox:  unixadmin@emea.nec.com
admin-c:        NEA30-RIPE
tech-c:         NEA30-RIPE
nic-hdl:        NEH4-RIPE
mnt-by:         nec-eu-mnt
created:        2004-04-29T11:24:04Z
last-modified:  2021-02-16T11:39:03Z
source:         RIPE # Filtered

% This query was served by the RIPE Database Query Service version 1.113.2 (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