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 AS1729 as originally allocated by
/usr/bin/whois -h jwhois.apnic.netr "AS1729\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 'AS1729 - AS1729'
as-block: AS1729 - AS1729
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: 2018-11-22T15:27:12Z
last-modified: 2018-11-22T15:27:12Z
source: RIPE
% Information related to 'AS1729'
% Abuse contact for 'AS1729' is 'abuse@telia.com'
aut-num: AS1729
as-name: TELIA-TCN
org: ORG-TA45-RIPE
descr: Telia Corporate Network
descr: Telia AB, Sweden
admin-c: TCN1-RIPE
tech-c: TCN1-RIPE
status: ASSIGNED
mnt-by: AS1729-MNT
mnt-by: RIPE-NCC-END-MNT
created: 2002-08-21T16:42:12Z
last-modified: 2016-04-14T10:14:08Z
source: RIPE
organisation: ORG-TA45-RIPE
org-name: Telia Company AB
country: SE
org-type: LIR
address: Stjärntorget
address: 169 94
address: Solna
address: SWEDEN
phone: +46890100
admin-c: EVAO
admin-c: PB8229-RIPE
admin-c: TR889-RIPE
admin-c: IC106-RIPE
admin-c: LS483-RIPE
admin-c: ACA-RIPE
abuse-c: AR13670-RIPE
mnt-ref: RIPE-NCC-HM-MNT
mnt-ref: TELIANET-LIR
mnt-by: RIPE-NCC-HM-MNT
mnt-by: TELIANET-LIR
created: 2004-04-17T12:05:00Z
last-modified: 2025-09-19T06:09:23Z
source: RIPE # Filtered
role: TCN NOC
address: TCN Network Operation Centre
address: Telia Company AB
address: Sweden
phone: +46 8 707 10 00
fax-no: +46 8 707 12 66
remarks: trouble:ts-cert@teliacompany.com
admin-c: BT162-RIPE
admin-c: TR889-RIPE
nic-hdl: TCN1-RIPE
mnt-by: TELIANET-LIR
created: 1970-01-01T00:00:00Z
last-modified: 2022-01-05T10:35:56Z
source: RIPE # Filtered
% This query was served by the RIPE Database Query Service version 1.121.2 (BUSA)