% 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://docs.db.ripe.net/terms-conditions.html

% Note: this output has been filtered.
%       To receive output for a database update, use the "-B" flag.

% Information related to '148.252.128.0 - 148.252.191.255'

% Abuse contact for '148.252.128.0 - 148.252.191.255' is 'ipabuse@vodafone.co.uk'

inetnum:        148.252.128.0 - 148.252.191.255
status:         LEGACY
netname:        VODAFONE-CORE-NETWORK-DEVELOPMENT
descr:          Vodafone Ltd
org:            ORG-VI6-RIPE
country:        GB
admin-c:        PNS10-RIPE
tech-c:         PNS10-RIPE
mnt-by:         RIPE-NCC-LEGACY-MNT
mnt-by:         VODAFONE-UK-MNTNER
created:        2016-03-10T11:40:28Z
last-modified:  2023-10-20T13:02:51Z
source:         RIPE

% Information related to '148.252.132.0/23AS25135'

route:          148.252.132.0/23
origin:         AS25135
mnt-by:         VODAFONE-UK-MNTNER
created:        2019-08-28T13:59:14Z
last-modified:  2019-08-28T13:59:14Z
source:         RIPE

% Information related to '148.252.132.0/23AS5378'

route:          148.252.132.0/23
origin:         AS5378
mnt-by:         VODAFONE-UK-MNTNER
created:        2019-08-28T14:00:10Z
last-modified:  2019-08-28T14:00:10Z
source:         RIPE

% This query was served by the RIPE Database Query Service version 1.123 (DEXTER)