What is ASN AS197451?

ASN AS197451 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS197451?

AS197451 is listed under Brno University of Technology.

What do peers, upstreams, and downstreams mean in ASN data?

Peers are lateral network interconnections, upstreams are transit providers, and downstreams are customer networks receiving connectivity.

What are routes and IP ranges for an ASN?

Routes and IP ranges are the network prefixes announced by the ASN on the internet and show the address space it originates.

Why is WHOIS data shown for an ASN?

WHOIS data provides registration and contact context for ASN ownership, administration, and operational reference.

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AS197451 Brno University of Technology

Brno University of Technology vutbr.cz

CZ 12 Routes

AS Data

AS197451

AS197451 – Brno University of Technology

AS Number	197451
AS Name	VUTBR-AS
Organization	Brno University of Technology (org-buot1-ripe)
Country	CZ
Website	vutbr.cz
Number of IPv4 Routes	8
Number of IPv6 Routes	4
ASN type	EDUCATION
Allocation Status	ASSIGNED
Registry	RIPE
Date Allocated	2010-12-08

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
185.149.205.0/24	AS197451	Brno University of Technology	Brno University of Technology	256
147.229.224.0/19	AS197451	Brno University of Technology	Brno University of Technology	8192
185.149.204.0/22	AS197451	Brno University of Technology	Brno University of Technology	1024
2a03:2e0::/32	AS197451	Brno University of Technology	Brno University of Technology	~79×10²⁷
147.229.128.0/18	AS197451	Brno University of Technology	Brno University of Technology	16384
2a03:2e4::/30	AS197451	Brno University of Technology	JIC	~317×10²⁷
2a07:6bc0::/29	AS197451	Brno University of Technology	CZ MCOMPUTERS	~634×10²⁷
185.149.204.0/24	AS197451	Brno University of Technology	Brno University of Technology	256
2001:67c:1220::/46	AS197451	Brno University of Technology	Brno University of Technology	~5×10²⁴
147.229.0.0/17	AS197451	Brno University of Technology	Brno University of Technology	32768

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 '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
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:  2023-07-28T06:09:05Z
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 1.121.2 (BUSA)

Parsed Whois Response

{
  "status" : true,
  "whois_server" : "whois.ripe.net",
  "as_blocks" : [ {
    "as_block" : "AS196608 - AS197840",
    "description" : [ "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" ],
    "date_created" : "2024-09-04",
    "date_updated" : "2024-09-04",
    "source" : "RIPE"
  } ],
  "aut_nums" : [ {
    "aut_num" : "AS197451",
    "as_name" : "VUTBR-AS",
    "status" : "ASSIGNED",
    "import" : [ "from AS2852 accept ANY", "from AS6830 accept ANY", "from AS2819 accept ANY", "from AS60143 accept AS-BR-IX-RS", "from AS15935 accept ANY" ],
    "mp_import" : [ "afi ipv6 from AS2852 accept ANY", "afi ipv4 from AS2852 accept ANY" ],
    "export" : [ "to AS2852 announce AS-VUTBR", "to AS6830 announce AS-VUTBR", "to AS2819 announce AS-VUTBR", "to AS60143 announce AS-VUTBR", "to AS15935 announce AS-VUTBR" ],
    "mp_export" : [ "afi ipv6 to AS2852 announce AS197451", "afi ipv4 to AS2852 announce AS197451" ],
    "organization" : "ORG-BUOT1-RIPE",
    "admin_contacts" : [ "CA6319-RIPE" ],
    "tech_contacts" : [ "CA6319-RIPE" ],
    "remarks" : [ "====================================================", "Imported from:", "rt:197451:100 - Exchange points + direct peering", "rt:197451:101 - NIX.CZ", "rt:197451:103 - SIX.SK", "rt:197451:104 - NIX.SK", "rt:197451:105 - BR-IX", "rt:197451:106 - Peering.cz", "rt:197451:199 - direct peering", "rt:197451:200 - Transit upstreams", "rt:197451:201 - Liberty Global", "rt:197451:202 - T-Mobile", "rt:197451:203 - CESNET", "rt:197451:300 - Customers", "rt:197451:301 - Internal networks", "Export to:", "rt:197451:100x - exchange points + direct peering", "rt:197451:1000 - shorten path to IXP", "rt:197451:200x - transit upstreams", "where x is the number of prepends of AS197451", "(1-3; 9 - not anounce)", "=====================================================" ],
    "mnt_by" : [ "RIPE-NCC-END-MNT", "VUTBR-MNT" ],
    "date_created" : "2010-12-08",
    "date_updated" : "2018-09-04",
    "source" : "RIPE"
  } ],
  "organization" : {
    "handle" : "ORG-BUOT1-RIPE",
    "name" : "Brno University of Technology",
    "type" : "LIR",
    "address" : [ "Antoninska 548/1", "60190", "Brno", "CZECH REPUBLIC" ],
    "street" : "Antoninska",
    "city" : "Brno",
    "zip_code" : "60190",
    "country" : [ "CZ" ],
    "phone" : [ "+420541145453" ],
    "abuse_contacts" : [ "CA6319-RIPE" ],
    "mnt_ref" : [ "RIPE-NCC-HM-MNT", "VUTBR-MNT" ],
    "mnt_by" : [ "RIPE-NCC-HM-MNT", "VUTBR-MNT" ],
    "date_created" : "2014-06-27",
    "date_updated" : "2023-07-28",
    "source" : "RIPE",
    "addressCountry" : "CZECH REPUBLIC"
  },
  "administrative_contacts" : [ {
    "handle" : "CA6319-RIPE",
    "name" : "Brno University of Technology - Backbone Admins",
    "address" : [ "Brno University of Technology", "Antoninska 1", "601 90 Brno", "The Czech Republic" ],
    "street" : "Antoninska",
    "city" : "Brno The",
    "zip_code" : "601 90",
    "country" : "CZECH REPUBLIC",
    "abuse_mailbox" : [ "abuse@vutbr.cz" ],
    "phone" : [ "+420 541145453", "+420 723047787" ],
    "mnt_by" : [ "VUT-BATCH-MNT", "VUTBR-MNT" ],
    "date_created" : "2015-01-30",
    "date_updated" : "2023-07-28",
    "source" : "RIPE",
    "addressCountry" : "CZECH REPUBLIC"
  } ],
  "technical_contacts" : [ {
    "handle" : "CA6319-RIPE",
    "name" : "Brno University of Technology - Backbone Admins",
    "address" : [ "Brno University of Technology", "Antoninska 1", "601 90 Brno", "The Czech Republic" ],
    "street" : "Antoninska",
    "city" : "Brno The",
    "zip_code" : "601 90",
    "country" : "CZECH REPUBLIC",
    "abuse_mailbox" : [ "abuse@vutbr.cz" ],
    "phone" : [ "+420 541145453", "+420 723047787" ],
    "mnt_by" : [ "VUT-BATCH-MNT", "VUTBR-MNT" ],
    "date_created" : "2015-01-30",
    "date_updated" : "2023-07-28",
    "source" : "RIPE",
    "addressCountry" : "CZECH REPUBLIC"
  } ]
}

Peers

AS Number	Description	Country
AS202872	KME, spol. s r. o.	CZ
AS204860	NetX Networks a.s.	CZ
AS24971	MasterDC s.r.o.	CZ
AS60143	Brno University of Technology	CZ
AS210604	Pernix systems s.r.o.	CZ
AS212138	Technicke site Brno, akciova spolecnost	CZ
AS6830	Liberty Global Europe Holding B.V.	NL
AS16019	Vodafone Czech Republic a.s.	CZ
AS15935	ha vel internet s.r.o.	CZ
AS15935	ha-vel internet s.r.o.	CZ

Upstreams

AS Number	Description	Country
AS2852	CESNET z.s.p.o.	CZ
AS16019	Vodafone Czech Republic a.s.	CZ
AS15935	ha vel internet s.r.o.	CZ

Downstreams

AS Number	Description	Country
AS202872	KME, spol. s r. o.	CZ
AS207167	mapnet IT services s.r.o.	CZ
AS204860	NetX Networks a.s.	CZ
AS24971	MasterDC s.r.o.	CZ
AS210604	Pernix systems s.r.o.	CZ
AS212138	Technicke site Brno, akciova spolecnost	CZ
AS201263	Brno University of Technology	CZ
AS34222	ZONER a.s.	CZ
AS201931	LBnet.cz s.r.o.	CZ

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