ASN Lookup Tool

Technical University of Sofia tu-sofia.bg BG BG 17 Routes

AS Data

AS28949

AS28949Technical University of Sofia

AS Number 28949
AS Name TUSNET-AS
Organization Technical University of Sofia(org-tuos2-ripe)
Country BG
Website tu-sofia.bg
Number of IPv4 Routes 17
Number of IPv6 Routes 0
ASN type EDUCATION
Allocation Status ASSIGNED
Registry RIPE
Date Allocated 2003-04-16

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Use ASN data for AS28949 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route # IPs
81.161.241.0/24 256
81.161.254.0/24 256
81.161.246.0/24 256
81.161.243.0/24 256
81.161.251.0/24 256
81.161.245.0/24 256
81.161.240.0/20 4096
81.161.249.0/24 256
81.161.247.0/24 256
81.161.253.0/24 256

Raw Whois Response

% 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.
%       To receive output for a database update, use the "-B" flag.

% Information related to 'AS28914 - AS29090'

as-block:       AS28914 - AS29090
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:        2018-11-22T15:27:31Z
last-modified:  2018-11-22T15:27:31Z
source:         RIPE

% Information related to 'AS28949'

% Abuse contact for 'AS28949' is 'abuse@tu-sofia.bg'

aut-num:        AS28949
sponsoring-org: ORG-MN1-RIPE
as-name:        TUSNET-AS
descr:          8, Kliment Ohridski St.
descr:          Sofia-1000, BULGARIA
import:         from AS9127 action pref=100; accept ANY
import:         from AS8717 action pref=100; accept ANY
import:         from AS6802 action pref=100; accept ANY
export:         to AS9127 announce AS28949
export:         to AS8717 announce AS28949
export:         to AS6802 announce AS28949
admin-c:        SP9887-RIPE
tech-c:         SP9887-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
org:            ORG-TUOS2-RIPE
mnt-by:         TUSOFIA-MNT
created:        2003-04-16T12:19:39Z
last-modified:  2025-12-23T06:42:18Z
source:         RIPE # Filtered

organisation:   ORG-TUOS2-RIPE
org-name:       Technical University of Sofia
country:        BG
org-type:       OTHER
address:        8, Kliment Ohridski Bul.
address:        1000 Sofia
address:        Bulgaria
admin-c:        SP9887-RIPE
tech-c:         LP9887-RIPE
abuse-c:        AR19085-RIPE
mnt-ref:        TUSOFIA-MNT
mnt-by:         TUSOFIA-MNT
created:        2013-02-19T08:28:11Z
last-modified:  2022-12-01T16:56:36Z
source:         RIPE # Filtered

person:         Stefka Popova
address:        Technical University of Sofia
address:        8, Kliment Ohridski St
address:        1000 Sofia
address:        Bulgaria
phone:          +359 2 9653041
fax-no:         +359 2 685446
mnt-by:         TUSOFIA-MNT
nic-hdl:        SP9887-RIPE
org:            ORG-TUOS2-RIPE
created:        2002-02-04T13:27:44Z
last-modified:  2013-02-19T08:39:35Z
source:         RIPE # Filtered

% This query was served by the RIPE Database Query Service version 1.121.2 (BUSA)

Parsed Whois Response

Peers

AS Number Description Country
AS6802 Bulgarian Research and Education Network Association (BREN) BG
AS8717 A1 Bulgaria EAD BG
AS6802 Bulgarian Research and Education Network Association BREN BG
AS9127 Vivacom Bulgaria EAD BG

Upstreams

AS Number Description Country
AS8717 A1 Bulgaria EAD BG
AS6802 Bulgarian Research and Education Network Association BREN BG

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Frequently Asked Questions

ASN AS28949 is an Autonomous System Number used to identify a network for BGP internet routing.
AS28949 is listed under Technical University of Sofia.
Peers are lateral network interconnections, upstreams are transit providers, and downstreams are customer networks receiving connectivity.
Routes and IP ranges are the network prefixes announced by the ASN on the internet and show the address space it originates.
WHOIS provides registration and contact context for ASN ownership, administration, and operational reference.
This page previews large ASN datasets. Use See more to load additional rows, and upgrade your plan to view complete peer, route, upstream, and downstream data.