% 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 '217.70.121.0 - 217.70.122.255'

% Abuse contact for '217.70.121.0 - 217.70.122.255' is 'abuse@rt.ru'

inetnum:        217.70.121.0 - 217.70.122.255
netname:        NGTS-NSOELSVZ
descr:          Novosibirsk Local Telephone Company (NGTS) is Structural division
descr:          of Open Joint Stock Company "Sibirtelecom"
country:        RU
admin-c:        IVP1-RIPE
tech-c:         BDVO13-RIPE
tech-c:         YOL1-RIPE
status:         ASSIGNED PA
remarks:        Direct reference for the general info on spam,
remarks:        abusing & hacking complaints email abuse@gts.nsk.su .
remarks:        In unsoluble cases for the general info on spam,
remarks:        abusing & hacking complaints email abuse@sinor.ru .
mnt-by:         NSOELSV-NCC
mnt-lower:      NSOELSV-NCC
mnt-routes:     NSOELSV-NCC
created:        2003-03-11T08:16:52Z
last-modified:  2009-09-08T11:26:49Z
source:         RIPE # Filtered

person:         Dmitry Besedin
address:        Novosibirsk Telephono-Telegraph station is department
address:        of join stock company "Sibirtelecom"
address:        18, Ordjenikidze str.,
address:        630099,  Novosibirsk, Russia
phone:          +7 383 2 270079
fax-no:         +7 383 2 270017
nic-hdl:        BDVO13-RIPE
mnt-by:         NSOELSV-NCC
remarks:        Network admin. of RU-SIBNET
created:        2003-05-15T06:43:40Z
last-modified:  2010-10-21T09:24:10Z
source:         RIPE # Filtered

person:         Igor V. Podolyanchenko
address:        Novosibirsk Local Telephone Company
address:        Oktyabrskaya st.17
address:        630093 Novosibirsk
address:        Russia
phone:          +7 3832 18 22 11
fax-no:         +7 3832 10 11 62
nic-hdl:        IVP1-RIPE
mnt-by:         NSOELSV-NCC
created:        1970-01-01T00:00:00Z
last-modified:  2004-01-14T05:27:08Z
source:         RIPE # Filtered

person:         Yuri O. Larukov
address:        Long-distance Telephone Station of  Novosibirsk.
address:        Ordjonikidze 18, 630090, Novosibirsk, Russia.
phone:          +7 383-2048-123
nic-hdl:        YOL1-RIPE
mnt-by:         NSOELSV-NCC
created:        1970-01-01T00:00:00Z
last-modified:  2012-11-08T10:52:50Z
source:         RIPE # Filtered

% Information related to '217.70.96.0/19AS12389'

route:          217.70.96.0/19
origin:         AS12389
mnt-by:         ROSTELECOM-MNT
created:        2024-04-05T04:29:50Z
last-modified:  2024-04-05T04:29:50Z
source:         RIPE

% This query was served by the RIPE Database Query Service version 1.112.1 (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