% 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 '31.4.128.0 - 31.4.135.255'

% Abuse contact for '31.4.128.0 - 31.4.135.255' is 'abuse@corp.vodafone.es'

inetnum:        31.4.128.0 - 31.4.135.255
netname:        HITS_Telecom_Spain
descr:          GLOBAL MOBILE OPERATOR
country:        ES
admin-c:        AIRT1-RIPE
tech-c:         AIRT1-RIPE
status:         ASSIGNED PA
mnt-by:         AIRTELNET-MNT
created:        2012-07-16T11:03:01Z
last-modified:  2012-07-16T11:03:01Z
source:         RIPE

role:           VODAFONE ESPANA ROLE
address:        Vodafone Spain
address:        Avenida de América, 115
address:        28042
address:        Madrid
address:        Spain
phone:          +34 607133333
abuse-mailbox:  abuse@corp.vodafone.es
admin-c:        DHC4-RIPE
admin-c:        RRV18-RIPE
tech-c:         DHC4-RIPE
tech-c:         RRV18-RIPE
nic-hdl:        AIRT1-RIPE
mnt-by:         AIRTELNET-MNT
created:        1970-01-01T00:00:00Z
last-modified:  2024-02-21T08:43:05Z
source:         RIPE # Filtered

% Information related to '31.4.0.0/16AS12430'

route:          31.4.0.0/16
descr:          VF-ES-NETWORK
origin:         AS12430
mnt-by:         AIRTELNET-MNT
created:        2011-05-25T09:41:53Z
last-modified:  2011-05-25T09:41:53Z
source:         RIPE

% This query was served by the RIPE Database Query Service version 1.111 (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