% APNIC found the following authoritative answer from: whois.ripe.net

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% The objects are in RPSL format.
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% Information related to '83.181.64.0 - 83.181.127.255'

% Abuse contact for '83.181.64.0 - 83.181.127.255' is 'abuse@tele2.com'

inetnum:        83.181.64.0 - 83.181.127.255
netname:        LT-TELE2-GPRS
descr:          Mobile Services Lithuania
descr:          ********************************************
                In case of improper use originating from our
                network, please mail Tele2 Security at
                <abuse@tele2.lt>
                ********************************************
country:        LT
language:       LT
geoloc:         54.6871555 25.2796514
admin-c:        SWIP-RIPE
tech-c:         SWIP-RIPE
status:         ASSIGNED PA
mnt-by:         SWIPNET-LIR-MNT
created:        2016-09-20T06:11:38Z
last-modified:  2016-09-20T06:11:38Z
source:         RIPE

role:           Swipnet Staff
address:        Tele2 AB/Swedish IP Network
address:        IP Registry
address:        Torshamnsgatan 17 164 40 Kista SWEDEN
fax-no:         +46 8 5626 42 10
abuse-mailbox:  abuse@tele2.com
remarks:        The database object describes the staff of SWIPNET LIR.
admin-c:        ROSI3-RIPE
admin-c:        TH6544-RIPE
tech-c:         ROSI3-RIPE
tech-c:         TH6544-RIPE
nic-hdl:        SWIP-RIPE
mnt-by:         SWIPNET-LIR-MNT
created:        2002-03-21T14:25:04Z
last-modified:  2022-11-23T10:36:53Z
source:         RIPE # Filtered

% Information related to '83.176.0.0/12AS1257'

route:          83.176.0.0/12
descr:          SWIPNET
descr:          TELE2/ SWIPNET
origin:         AS1257
mnt-by:         AS1257-MNT
mnt-routes:     COMHEM-MNT
created:        2004-01-16T18:00:40Z
last-modified:  2021-02-12T13:57:51Z
source:         RIPE # Filtered

% This query was served by the RIPE Database Query Service version 1.114 (BUSA)

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