Autonomous System details

AS197451

Brno University of Technology · vutbr.cz

Czechia

BitTorrent

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AS197451 – Brno University of Technology

Field	Value
Country	Czechia
Website	vutbr.cz
Hosted domains	385
IPv4 addresses	67,072
IPv6 addresses	1,029,970,948,388,714,847,232,770,179,072
ASN type	Education
Registry	ripe
Allocated	15 years ago on Dec 08, 2010
Updated	7 years ago on Sep 04, 2018

Netblock	Company	Num of IPs
147.229.0.0/17	Brno University of Technology	32,768
147.229.128.0/18	Brno University of Technology	16,384
147.229.192.0/19	Brno University of Technology	8,192
147.229.224.0/19	Brno University of Technology	8,192
185.149.204.0/22	M Computers s.r.o.	1,024
185.62.108.0/23	Brno University of Technology	512
185.149.204.0/24	M Computers s.r.o.	256
185.149.205.0/24	M Computers s.r.o.	256

Netblock	Company
2a07:6bc0::/29	M Computers s.r.o.
2a03:2e4::/30	Brno University of Technology
2a03:2e0::/32	Brno University of Technology
2001:67c:1220::/46	Brno University of Technology

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WHOIS Details

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                                                ASHandle:       AS197451
                                                OrgID:          AS197451
                                                ASName:         AS197451
                                                ASNumber:       AS197451
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA

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Hosted Domains

There are 385 domain names hosted across 139 IP addresses on this ASN.

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IP Address	Domain	Domains on this IP
147.229.2.90	██████	35
147.229.1.26	██████████	19
185.62.108.37	██████████	19
147.229.123.51	█████████	18
185.62.108.48	██████████	16
185.62.108.230	███████	13
185.62.108.47	██████████	11
147.229.16.89	██████████	11
147.229.127.50	██████████	9
185.62.108.43	██████████	9

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Peers

There are 12 peers for this ASN.

Peers	Name
AS15935	ha-vel internet s.r.o.
AS16019	Vodafone Czech Republic a.s.
AS201263	Brno University of Technology
AS201931	LBnet.cz s.r.o.
AS202872	KME, spol. s r. o.
AS204860	NetX Networks a.s.
AS207167	mapnet IT services s.r.o.
AS210604	Pernix systems s.r.o.
AS212138	Technicke site Brno, akciova spolecnost
AS24971	MasterDC s.r.o.
AS2852	CESNET z.s.p.o.
AS34222	ZONER a.s.

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ASN API & Database

Upstreams

There are 3 upstreams for this ASN.

upstreams	Name
AS15935	ha-vel internet s.r.o.
AS16019	Vodafone Czech Republic a.s.
AS2852	CESNET z.s.p.o.

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Downstreams

There are 8 downstreams for this ASN.

Downstreams	Name
AS201263	Brno University of Technology
AS201931	LBnet.cz s.r.o.
AS202872	KME, spol. s r. o.
AS204860	NetX Networks a.s.
AS207167	mapnet IT services s.r.o.
AS210604	Pernix systems s.r.o.
AS212138	Technicke site Brno, akciova spolecnost
AS34222	ZONER a.s.

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ASN API & Database

Pingable IPs

167 IPs in this ASN replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
147.229.193.134	AS197451 Brno University of Technology	`0.50ms` from Brno, CZ
147.229.17.1	AS197451 Brno University of Technology	`0.43ms` from Brno, CZ
147.229.9.1	AS197451 Brno University of Technology	`0.34ms` from Brno, CZ
147.229.12.1	AS197451 Brno University of Technology	`0.38ms` from Brno, CZ
147.229.79.1	AS197451 Brno University of Technology	`0.60ms` from Brno, CZ
147.229.145.146	AS197451 Brno University of Technology	`0.52ms` from Brno, CZ
147.229.86.250	AS197451 Brno University of Technology	`0.42ms` from Brno, CZ
147.229.18.129	AS197451 Brno University of Technology	`0.37ms` from Brno, CZ
147.229.182.4	AS197451 Brno University of Technology	`1.11ms` from Brno, CZ
147.229.28.193	AS197451 Brno University of Technology	`0.40ms` from Brno, CZ
147.229.181.94	AS197451 Brno University of Technology	`1.96ms` from Brno, CZ
147.229.135.63	AS197451 Brno University of Technology	`0.46ms` from Brno, CZ
147.229.183.102	AS197451 Brno University of Technology	`2.54ms` from Brno, CZ
147.229.139.1	AS197451 Brno University of Technology	`1.29ms` from Brno, CZ
147.229.27.193	AS197451 Brno University of Technology	`0.38ms` from Brno, CZ
147.229.96.235	AS197451 Brno University of Technology	`0.44ms` from Brno, CZ
147.229.160.1	AS197451 Brno University of Technology	`0.40ms` from Brno, CZ
147.229.131.252	AS197451 Brno University of Technology	`0.55ms` from Brno, CZ
147.229.6.65	AS197451 Brno University of Technology	`0.34ms` from Brno, CZ
147.229.39.125	AS197451 Brno University of Technology	`0.54ms` from Brno, CZ
147.229.67.1	AS197451 Brno University of Technology	`0.56ms` from Brno, CZ
147.229.197.24	AS197451 Brno University of Technology	`0.56ms` from Brno, CZ
147.229.137.40	AS197451 Brno University of Technology	`0.45ms` from Brno, CZ
147.229.207.106	AS197451 Brno University of Technology	`0.63ms` from Brno, CZ
147.229.155.80	AS197451 Brno University of Technology	`0.40ms` from Brno, CZ

Other Pingable IPs

Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.

IP Address	ASN	Details
212.72.35.107	AS3356 Level 3 Parent, LLC	`0.45ms` from Amsterdam, NL
39.105.252.235	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`2.82ms` from Beijing, CN
81.247.99.219	AS5432 Proximus NV	`1.94ms` from Brussels, BE
20.162.102.187	AS8075 Microsoft Corporation	`0.18ms` from Cardiff, GB
184.92.79.171	AS11427 Charter Communications Inc	`4.05ms` from Dallas, US
101.96.67.27	AS24173 Netnam Company	`0.81ms` from Hanoi, VN
103.154.123.171	AS131111 PT Mora Telematika Indonesia	`0.62ms` from Jakarta, ID
87.220.45.219	AS12479 Orange Espagne SA	`1.44ms` from Madrid, ES
194.116.20.251	AS34606 B.B.Bell SPA	`2.73ms` from Milan, IT
34.47.241.219	AS396982 Google LLC	`0.09ms` from Mumbai, IN
87.7.159.203	AS3269 Telecom Italia S.p.A.	`5.19ms` from Naples, IT
183.155.112.171	AS4134 CHINANET-BACKBONE	`6.07ms` from Ningbo, CN
133.95.46.27	AS2907 Research Organization of Information and Systems, National Institute of Informatics	`9.44ms` from Osaka, JP
180.19.91.91	AS4713 NTT DOCOMO BUSINESS,Inc.	`6.69ms` from Osaka, JP
88.100.151.187	AS5610 O2 Czech Republic, a.s.	`1.41ms` from Prague, CZ
13.236.27.235	AS16509 Amazon.com, Inc.	`0.10ms` from Sydney, AU
24.76.209.27	AS6327 Shaw Communications	`4.73ms` from Winnipeg, CA
193.74.176.43	AS5432 Proximus NV	`1.06ms` from Brussels, BE
91.207.57.251	AS9009 M247 Europe SRL	`0.11ms` from Brussels, BE
75.31.213.107	AS7018 AT&T Enterprises, LLC	`15.59ms` from Chicago, US
98.30.172.171	AS10796 Charter Communications Inc	`11.01ms` from Columbus, US
46.244.213.203	AS8767 M-net Telekommunikations GmbH	`8.31ms` from Frankfurt am Main, DE
157.255.128.91	AS134543 China Unicom Guangdong IP network	`4.24ms` from Guangzhou, CN
211.213.61.91	AS9318 SK Broadband Co Ltd	`5.97ms` from Incheon, KR
15.156.139.11	AS16509 Amazon.com, Inc.	`0.14ms` from Montreal, CA

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this ASN. Learn more.

traceroute -a -n -q1 -f3 147.229.196.57

traceroute to 147.229.196.57 (147.229.196.57): 64 hops max, 52 byte packets

3 [AS24971] 83.167.254.188 0.131 ms

4 *

5 *

6 [AS197451] 147.229.252.77 5.346 ms

7 [AS197451] 147.229.196.57 0.522 ms

Measurement taken from

IPinfo ProbeNet in Brno, CZ

On February 16th 2026

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What is an ASN?

Autonomous System Numbers (ASNs) are assigned to entities such as Internet Service Providers and other large organizations that control blocks of IP addresses. This network page, and the organization field that's shown on the main IP address information page and also returned in the geolocation API are based on the ASN.

The ASN details will often correspond to the IP address owner, but for smaller organizations it may be that organization's parent, or their ISP. Find out more about AS197451 at robtex.

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