This AS is not currently used to announce prefixes in the global routing table, nor is it used as a visible transit AS.
whois: 402617
IANA has recorded AS251 as originally allocated by
/usr/bin/whois -h jwhois.apnic.netr "AS251\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 'AS248 - AS251'
as-block: AS248 - AS251
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: 2018-11-22T15:27:05Z
last-modified: 2018-11-22T15:27:05Z
source: RIPE
% Information related to 'AS251'
% No abuse contact registered for AS251
aut-num: AS251
as-name: AS251
descr: AS251
admin-c: DK8381-RIPE
admin-c: FH-RIPE
tech-c: DK8381-RIPE
tech-c: FH-RIPE
status: LEGACY
mnt-by: DKLIMEK-MNT
mnt-by: HIBLER-MNT
created: 2002-08-21T16:06:01Z
last-modified: 2025-04-23T10:28:42Z
source: RIPE
%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 1.122.1 (ABERDEEN)