197451 VUTBR-AS, CZ
Adjacency: 10 Upstream: 3 Downstream: 7
Upstream Adjacent AS list
AS15935 HA-VEL-LOCAL-AS Czech republic, CZ
AS16019 VODAFONE-CZ-AS, CZ
AS2852 CESNET2, CZ
Downstream Adjacent AS list
AS201931 LBNET, CZ
AS212138 AS_TSB, CZ
AS34222 ZONER-AS, CZ
AS202872 KMENET, CZ
AS201263 AS-BRIX-CDN, CZ
AS210604 ASCZPERNIX-NEZA, CZ
AS204860 NETX NetX Networks a.s., CZ
Rank AS Type Originate Addr Space (pfx) Transit Addr space (pfx) Description 3217 AS197451 ORG+TRN Originate: 67584 /15.96 Transit: 768 /22.42 VUTBR-AS, CZ
Aggregation Suggestions
Filter: Aggregates, Specifics
This report does not take into account conditions local to each origin AS in terms of policy or traffic engineering requirements, so this is an approximate guideline as to aggregation possibilities.
Rank AS AS Name Current Wthdw Aggte Annce Redctn % 18457 AS197451 VUTBR-AS, CZ 8 2 0 6 2 25.00% Prefix AS Path Aggregation Suggestion 147.229.0.0/17 6939 2852 197451 197451 147.229.128.0/18 6939 2852 197451 197451 147.229.192.0/19 6939 2852 197451 197451 147.229.224.0/19 6939 16019 197451 197451 185.62.108.0/23 6939 16019 197451 197451 185.149.204.0/22 6939 16019 197451 197451 185.149.204.0/24 6939 16019 197451 197451 - Withdrawn - matching aggregate 185.149.204.0/22 6939 16019 197451 197451 185.149.205.0/24 6939 16019 197451 197451 - Withdrawn - matching aggregate 185.149.204.0/22 6939 16019 197451 197451
Advertisements that are fragments of the original RIR allocation (more specifics) originated by this AS.
AS197451 8 More Specifics 9 Total Advertisements VUTBR-AS, CZ
147.229.0.0/17 147.229.0.0/16
147.229.128.0/18 147.229.0.0/16
147.229.192.0/19 147.229.0.0/16
147.229.224.0/19 147.229.0.0/16
185.62.108.0/23 185.62.108.0/22
185.149.204.0/24 185.149.204.0/22
185.149.205.0/24 185.149.204.0/22
185.149.207.0/24 185.149.204.0/22
Prefixes added and withdrawn by this origin AS in the past 7 days.
+ 185.149.207.0/24 Announced
whois: 402590
IANA has recorded AS197451 as originally allocated by
/usr/bin/whois -h jwhois.apnic.netr "AS197451\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 'AS196608 - AS197840'
as-block: AS196608 - AS197840
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: 2024-09-04T14:04:38Z
last-modified: 2024-09-04T14:04:38Z
source: RIPE
% Information related to 'AS197451'
% Abuse contact for 'AS197451' is 'abuse@vutbr.cz'
aut-num: AS197451
as-name: VUTBR-AS
org: ORG-BUOT1-RIPE
import: from AS2852 accept ANY
import: from AS6830 accept ANY
import: from AS2819 accept ANY
import: from AS60143 accept AS-BR-IX-RS
import: from AS15935 accept ANY
export: to AS2852 announce AS-VUTBR
export: to AS6830 announce AS-VUTBR
export: to AS2819 announce AS-VUTBR
export: to AS60143 announce AS-VUTBR
export: to AS15935 announce AS-VUTBR
mp-import: afi ipv6 from AS2852 accept ANY
mp-import: afi ipv4 from AS2852 accept ANY
mp-export: afi ipv6 to AS2852 announce AS197451
mp-export: afi ipv4 to AS2852 announce AS197451
admin-c: CA6319-RIPE
tech-c: CA6319-RIPE
status: ASSIGNED
mnt-by: RIPE-NCC-END-MNT
mnt-by: VUTBR-MNT
created: 2010-12-08T11:00:29Z
last-modified: 2018-09-04T10:56:36Z
source: RIPE
remarks: ====================================================
remarks: Imported from:
remarks: rt:197451:100 - Exchange points + direct peering
remarks: rt:197451:101 - NIX.CZ
remarks: rt:197451:103 - SIX.SK
remarks: rt:197451:104 - NIX.SK
remarks: rt:197451:105 - BR-IX
remarks: rt:197451:106 - Peering.cz
remarks: rt:197451:199 - direct peering
remarks:
remarks: rt:197451:200 - Transit upstreams
remarks: rt:197451:201 - Liberty Global
remarks: rt:197451:202 - T-Mobile
remarks: rt:197451:203 - CESNET
remarks:
remarks: rt:197451:300 - Customers
remarks: rt:197451:301 - Internal networks
remarks:
remarks: Export to:
remarks: rt:197451:100x - exchange points + direct peering
remarks: rt:197451:1000 - shorten path to IXP
remarks: rt:197451:200x - transit upstreams
remarks:
remarks: where x is the number of prepends of AS197451
remarks: (1-3; 9 - not anounce)
remarks: =====================================================
organisation: ORG-BUOT1-RIPE
org-name: Brno University of Technology
country: CZ
reg-nr: Not Applicable
org-type: LIR
address: Antoninska 548/1
address: 60190
address: Brno
address: CZECH REPUBLIC
phone: +420541145453
abuse-c: CA6319-RIPE
mnt-ref: RIPE-NCC-HM-MNT
mnt-ref: VUTBR-MNT
mnt-by: RIPE-NCC-HM-MNT
mnt-by: VUTBR-MNT
created: 2014-06-27T15:02:34Z
last-modified: 2026-05-13T07:35:23Z
source: RIPE # Filtered
role: Brno University of Technology - Backbone Admins
address: Brno University of Technology
address: Antoninska 1
address: 601 90 Brno
address: The Czech Republic
phone: +420 541145453
phone: +420 723047787
nic-hdl: CA6319-RIPE
mnt-by: VUT-BATCH-MNT
mnt-by: VUTBR-MNT
created: 2015-01-30T08:31:35Z
last-modified: 2023-07-28T06:06:12Z
source: RIPE # Filtered
abuse-mailbox: abuse@vutbr.cz
% This query was served by the RIPE Database Query Service version 1.122.1 (ABERDEEN)