% 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 'AS57148 - AS58367'

as-block:       AS57148 - AS58367
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:        2023-08-23T15:27:46Z
last-modified:  2023-08-23T15:27:46Z
source:         RIPE

% Information related to 'AS57816'

% Abuse contact for 'AS57816' is 'mostafamoradi@hotmail.com'

aut-num:        AS57816
as-name:        SAMEN
org:            ORG-SEAC1-RIPE
import:         from as12880 accept any
import:         from as25184 accept any
import:         from as42337 accept any
export:         to as12880 announce AS57816
export:         to as25184 announce AS57816
export:         to as42337 announce AS57816
admin-c:        EJ900-RIPE
tech-c:         EJ900-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         SAMEN-MNT
created:        2012-02-15T12:16:31Z
last-modified:  2017-11-15T12:23:59Z
source:         RIPE

organisation:   ORG-SEAC1-RIPE
org-name:       Samen Ertebat Asr Co. (P.J.S.)
country:        IR
org-type:       LIR
address:        No.12, Golshahr Blvd, Afriqa St.
address:        1915663481
address:        Tehran
address:        IRAN, ISLAMIC REPUBLIC OF
phone:          +989121251497
phone:          +982124879210
fax-no:         +982126202898
admin-c:        EJ900-RIPE
mnt-ref:        RIPE-NCC-HM-MNT
mnt-ref:        SAMEN-MNT
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         SAMEN-MNT
abuse-c:        ID1641-RIPE
created:        2011-12-05T15:57:08Z
last-modified:  2020-12-16T12:37:45Z
source:         RIPE # Filtered

person:         Ehsan Jalaledini
address:        No.12, Golshahr Blvd, Afriqa St.
address:        Tehran, Iran
address:        1915663481
phone:          +98(21)24879000
nic-hdl:        EJ900-RIPE
mnt-by:         SAMEN-MNT
created:        2011-12-06T10:24:29Z
last-modified:  2018-12-17T06:51:44Z
source:         RIPE # Filtered

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

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