% 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 'AS51357 - AS52223'

as-block:       AS51357 - AS52223
descr:          RIPE NCC ASN block
remarks:        These AS Numbers are assigned to network operators in the RIPE NCC service region.
mnt-by:         RIPE-NCC-HM-MNT
created:        2021-12-09T08:21:17Z
last-modified:  2021-12-09T08:21:17Z
source:         RIPE

% Information related to 'AS52140'

% Abuse contact for 'AS52140' is 'shaker@unhcr.org'

aut-num:        AS52140
as-name:        UNHCR-IR-AS
org:            ORG-UNHC1-RIPE
import:         from AS24631 action pref=1000; accept ANY
import:         from AS12880 action pref=1000; accept ANY
export:         to AS12880 announce AS52140
export:         to AS24631 announce AS52140
default:        to AS24631 action pref=100; networks any
admin-c:        UR682-RIPE
tech-c:         UR682-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         MK-UN
created:        2011-01-05T16:21:40Z
last-modified:  2018-09-04T10:57:33Z
source:         RIPE

organisation:   ORG-UNHC1-RIPE
org-name:       United Nations High Commissioner for Refugees
country:        IR
org-type:       LIR
address:        No.3 - East Emdad St. - North Shiraz Ave. - Vanak
address:        1991775941
address:        Tehran
address:        IRAN, ISLAMIC REPUBLIC OF
phone:          +982189349600
fax-no:         +982189349900
mnt-ref:        RIPE-NCC-HM-MNT
mnt-ref:        MNT-UN
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         MNT-UN
abuse-c:        UIR2-RIPE
created:        2011-01-04T07:54:47Z
last-modified:  2020-12-16T12:24:19Z
source:         RIPE # Filtered

role:           UNHCR-IRAN ROLE
address:        No.3 - East Emdad St. -  North Shiraz Ave. - Vanak
address:        1991775941 Tehran
address:        IRAN
phone:          +982188057201
fax-no:         +982188057212
admin-c:        MK10348-RIPE
tech-c:         MK10348-RIPE
abuse-mailbox:  Kazemi@unhcr.org
nic-hdl:        UR682-RIPE
created:        2011-01-04T12:58:33Z
last-modified:  2013-11-07T06:43:02Z
source:         RIPE # Filtered
mnt-by:         MK-UN

% This query was served by the RIPE Database Query Service version 1.112 (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