This AS is not currently used to announce prefixes in the global routing table, nor is it used as a visible transit AS.
whois: 402332
IANA has recorded AS57603 as originally allocated by
/usr/bin/whois -h jwhois.apnic.netr "AS57603\n % This is the RIPE Database query service.
% The objects are in RPSL format.
%
% The RIPE Database is subject to Terms and Conditions.
% See https://docs.db.ripe.net/terms-conditions.html
% Note: this output has been filtered.
% Information related to 'AS57370 - AS57973'
as-block: AS57370 - AS57973
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: 2025-04-24T14:15:44Z
last-modified: 2025-04-24T14:15:44Z
source: RIPE
% Information related to 'AS57603'
% Abuse contact for 'AS57603' is 'noc@l4.ua'
aut-num: AS57603
as-name: TRC-CITY-AS
org: ORG-PTc7-RIPE
import: from AS21488 accept ANY
export: to AS21488 announce AS57603
import: from AS12294 accept ANY
export: to AS12294 announce AS57603
admin-c: KV1542-RIPE
tech-c: KV1542-RIPE
status: ASSIGNED
mnt-by: RIPE-NCC-END-MNT
mnt-by: TRC-CITY-MNT
mnt-by: LAN4EVER-MNT
created: 2012-01-30T13:59:33Z
last-modified: 2018-09-04T11:08:55Z
source: RIPE
sponsoring-org: ORG-ML410-RIPE
organisation: ORG-PTC7-RIPE
org-name: PP "TRC"City TV center"
country: UA
org-type: OTHER
address: Ukraine, Vasulkiv, 08600, Grushevskogo str. 17-A
phone: +38(044)3844600
admin-c: KV1542-RIPE
abuse-c: AR19476-RIPE
mnt-ref: TRC-CITY-MNT
mnt-by: TRC-CITY-MNT
created: 2011-11-22T18:42:57Z
last-modified: 2026-04-17T10:23:48Z
source: RIPE # Filtered
%ERROR:201: access denied for 2401:2000:6660:0:0:0:0:13
%
% Queries from your IP address have passed the daily limit of controlled objects.
% Access from your host has been temporarily denied.
% For more information, see
% https://docs.db.ripe.net/FAQ/#why-did-i-receive-an-error-201-access-denied
% This query was served by the RIPE Database Query Service version 1.121.2 (SHETLAND)