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

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% The objects are in RPSL format.
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% Note: this output has been filtered.
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% Information related to '62.73.192.0 - 62.73.255.255'

% Abuse contact for '62.73.192.0 - 62.73.255.255' is 'abuse@telia-isp.no'

inetnum:        62.73.192.0 - 62.73.255.255
org:            ORG-TEN1-RIPE
admin-c:        TENO2-RIPE
netname:        NO-TELE1-20020305
country:        NO
geofeed:        https://lg.telia.net/ripe/AS25400_geofeed.csv
tech-c:         TENO2-RIPE
status:         ALLOCATED PA
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         TELE1-NO-MNT
mnt-routes:     TELE1-NO-MNT
created:        2002-03-05T15:26:21Z
last-modified:  2023-10-26T12:06:15Z
source:         RIPE # Filtered

organisation:   ORG-TEN1-RIPE
org-name:       Telia Norge AS
country:        NO
org-type:       LIR
address:        Lørenfaret 1A
address:        0585
address:        OSLO
address:        NORWAY
phone:          +47 2150 2100
fax-no:         +47 2150 2151
admin-c:        FL4732-RIPE
admin-c:        DVS10-RIPE
admin-c:        TENO2-RIPE
mnt-ref:        TELE1-NO-MNT
mnt-ref:        RIPE-NCC-HM-MNT
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         TELE1-NO-MNT
abuse-c:        TENO2-RIPE
created:        2004-04-17T11:46:04Z
last-modified:  2022-03-10T14:02:08Z
source:         RIPE # Filtered

role:           Tele1 Europe Norways role Object
address:        TELIA Norge AS
address:        Postboks 4444 Nydalen
address:        NO-0403 Oslo
address:        Norway
phone:          +4721502100
admin-c:        DVS10-RIPE
tech-c:         DVS10-RIPE
nic-hdl:        TENO2-RIPE
remarks:        trouble: abuse@telia-isp.no
abuse-mailbox:  abuse@telia-isp.no
mnt-by:         TELE1-NO-MNT
created:        2002-04-24T12:12:12Z
last-modified:  2021-06-10T07:41:09Z
source:         RIPE # Filtered

% Information related to '62.73.192.0/18AS25400'

route:          62.73.192.0/18
descr:          Telia Norge AS
origin:         AS25400
mnt-by:         GET-MNT
mnt-by:         TELE1-NO-MNT
mnt-by:         TELIANET-RR
created:        2020-04-17T08:17:34Z
last-modified:  2020-04-17T08:18:03Z
source:         RIPE

% Information related to '62.73.192.0/18AS3292'

route:          62.73.192.0/18
descr:          TDC Song Norway
descr:          NO-FASTCOM-20020305
origin:         AS3292
mnt-by:         AS3292-MNT
mnt-by:         TELE1-NO-MNT
created:        2006-06-13T09:54:22Z
last-modified:  2006-06-13T09:55:55Z
source:         RIPE # Filtered

% This query was served by the RIPE Database Query Service version 1.116 (SHETLAND)