
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 AS5623 as originally allocated by
/usr/bin/whois -h jwhois.apnic.netr "AS5623\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 'AS5537 - AS5631'
as-block: AS5537 - AS5631
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: 2018-11-22T15:27:22Z
last-modified: 2018-11-22T15:27:22Z
source: RIPE
% Information related to 'AS5623'
% Abuse contact for 'AS5623' is 'peering@intl.att.com'
aut-num: AS5623
as-name: ATT-CH-0A
org: ORG-AIS3-RIPE
descr: ATT-EMEA Autonomous System (dr6348)
import: from AS2686 accept ANY
export: to AS2686 announce AS5623
admin-c: AINI1-RIPE
tech-c: AINI1-RIPE
status: ASSIGNED
mnt-by: RIPE-NCC-END-MNT
tech-c: DR7890-RIPE
mnt-by: MAINT-AS2686
created: 2002-02-13T14:35:30Z
last-modified: 2018-09-21T10:54:42Z
source: RIPE # Filtered
organisation: ORG-AIS3-RIPE
org-name: AT&T Global Network Services Nederland B.V.
country: NL
org-type: LIR
address: Wilhelmina van Pruisenweg 104
address: 2595 AN
address: The Hague
address: NETHERLANDS
phone: +31 70 3376 863
fax-no: +31 70 3376 767
abuse-c: AR13530-RIPE
admin-c: RK7531-RIPE
admin-c: AGDC2-RIPE
admin-c: LL6103-RIPE
admin-c: SJ4618-RIPE
admin-c: PZ2930-RIPE
admin-c: DR7890-RIPE
admin-c: IH1406-RIPE
admin-c: PK4264-RIPE
admin-c: MS31384-RIPE
mnt-ref: RIPE-NCC-HM-MNT
mnt-ref: MAINT-AS2686
mnt-by: RIPE-NCC-HM-MNT
mnt-by: MAINT-AS2686
created: 2004-04-17T11:18:46Z
last-modified: 2026-01-20T12:56:52Z
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 (ABERDEEN)