AS number details

AS24971

MasterDC s.r.o.  ·  master.cz

Czechia

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AS24971 – MasterDC s.r.o.

Field Value
Country Czechia
Website master.cz
Hosted domains 117,072
Number of IPv4 58,880
Number of IPv6 1,665,032,979,616,295,313,626,846,199,808
ASN type Hosting
Registry ripe
Allocated 23 years ago on Jun 11, 2002
Updated a year ago on Nov 04, 2024

IP Ranges

Netblock Company Num of IPs
77.93.192.0/19 MasterDC s.r.o. 8,192
83.167.224.0/19 MasterDC s.r.o. 8,192
89.185.224.0/19 MasterDC s.r.o. 8,192
178.238.32.0/20 MasterDC s.r.o. 4,096
80.79.16.0/20 MasterDC s.r.o. 4,096
81.31.32.0/20 MasterDC s.r.o. 4,096
149.62.144.0/21 MasterDC s.r.o. 2,048
85.118.128.0/21 MasterDC s.r.o. 2,048
185.145.160.0/22 Etnetera Core a.s. 1,024
185.239.216.0/22 AdminIT, s. r. o. 1,024
185.25.184.0/22 NETIO Solutions s.r.o. 1,024
185.32.160.0/22 ANAFRA a.s. 1,024
185.58.40.0/22 MasterDC s.r.o. 1,024
185.85.164.0/22 ServerNow s.r.o. 1,024
194.145.180.0/22 ServerNow s.r.o. 1,024
195.140.252.0/22 Virtualmaster, s.r.o. 1,024
37.205.12.0/22 vpsFree.cz, z.s. 1,024
37.205.8.0/22 vpsFree.cz, z.s. 1,024
5.180.200.0/22 Bydzovsky s.r.o. 1,024
91.214.192.0/22 QCM, s.r.o. 1,024
91.226.216.0/22 W HOSTING, s.r.o. 1,024
176.227.168.0/23 HostingSolutions s.r.o. 512
185.8.164.0/23 vpsFree.cz - Prague3 512
185.8.166.0/23 vpsFree.cz - Brno3 512
188.213.234.0/23 NETIO Solutions s.r.o. 512
188.215.18.0/23 NETIO Solutions s.r.o. 512
193.169.160.0/23 Imarto Inc. 512
130.193.16.0/24 BNV Technologies, s.r.o. 256
37.140.220.0/24 ProfiSMS s.r.o. 256
83.223.52.0/24 Yoursafe Holding B.V. 256
91.213.160.0/24 Internet Info, s.r.o. 256
91.216.179.0/24 oXyShop s.r.o. 256
92.63.56.0/24 NEW TELEKOM, spol. s r.o. 256

Netblock Company
2a07:4880::/29 Etnetera Core a.s.
2a0c:6380::/29 AdminIT, s. r. o.
2a00:8220::/32 NETIO Solutions s.r.o.
2a00:a5a0::/32 ANAFRA a.s.
2a01:430::/32 MasterDC s.r.o.
2a03:7460::/32 ServerNow s.r.o.
2a0b:3240::/32 Bydzovsky s.r.o.
2a03:3b40:200::/39 vpsFree.cz, z.s.
2a03:3b40:100::/40 vpsFree.cz - IPv6 - Brno 2
2a03:3b40::/40 vpsFree.cz - IPv6 - Prague 2
2001:678:a50::/48 Imarto Inc.
2001:67c:68::/48 Internet Info, s.r.o.
2a04:16c0:200::/48 Yoursafe Holding B.V.

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WHOIS Details

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                                                ASHandle:       AS24971
                                                OrgID:          AS24971
                                                ASName:         AS24971
                                                ASNumber:       AS24971
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA
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Hosted Domains

There are 117,072 domain names hosted across 5,741 IP addresses on this ASN.

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IP Address Domain Domains on this IP
81.31.37.22 ██████████ 12,007
83.167.244.201 ██████████ 11,864
83.167.244.202 ██████████ 9,435
185.25.185.106 ████████ 4,076
77.93.211.215 ████████ 2,586
83.167.249.7 ██████████ 2,559
81.31.35.130 ██████████ 2,228
80.79.30.99 ██████████ 2,191
89.185.235.28 ██████████ 1,831
77.93.211.212 ██████████ 1,764

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Peers

There are 50 peers for this ASN.

Peers Name
AS1299 Arelion Sweden AB
AS13004 Serbian Open Exchange DOO
AS14840 BR.Digital Provider
AS15958 CETINdoo-NET
AS1764 Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbH
AS197451 Brno University of Technology
AS198150 SIACOM JSC
AS204957 GREEN FLOID LLC
AS207167 mapnet IT services s.r.o.
AS21045 K-net Technical International Group, s.r.o.
AS211085 mapnet IT services s.r.o.
AS212483 LEVEL EIGHTY-SIX COMMUNICATIONS LTD
AS21320 GEANT Vereniging
AS24482 SG.GS
AS263444 Open X Tecnologia Ltda
AS28917 Fiord Networks, UAB
AS29049 Delta Telecom Ltd
AS29504 Freenet Liberec, z.s.
AS3212 Telemach Slovenija d.o.o.
AS33891 Core-Backbone GmbH
AS34224 Neterra Ltd.
AS35369 LINZ STROM GAS WAERME GmbH fuer Energiedienstleistungen und Telekommunikation
AS36236 NetActuate, Inc
AS37721 Virtual Technologies & Solutions
AS39120 Convergenze S.p.A.
AS40994 Hohl IT e.U.
AS41327 Fiber Telecom S.p.A.
AS43733 Viva Armenia CJSC
AS4455 IX Reach Ltd
AS44901 Belcloud LTD
AS48921 Yoursafe Holding B.V.
AS49544 i3D.net B.V
AS50629 LWLcom GmbH
AS51134 Development 777 s.r.o.
AS51184 Fonira Telekom GmbH
AS51185 MainStreaming SpA
AS5405 Inter.link GmbH
AS57304 JSC "RetnNet"
AS57463 NetIX Communications JSC
AS59890 Kabel-TV Lampert GmbH & Co KG
AS60068 Datacamp Limited
AS6204 INTERKVM HOST SRL
AS6424 EDGOO NETWORKS
AS64481 Joint Venture Dragon Capital LLC
AS6663 Euroweb Romania S.R.L.
AS6881 NIX.CZ z.s.p.o.
AS6939 Hurricane Electric LLC
AS8218 Zayo Infrastructure France SA
AS8529 Zain Omantel International FZ-LLC
AS9002 RETN Limited
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Upstreams

There are 3 upstreams for this ASN.

upstreams Name
AS1299 Arelion Sweden AB
AS6939 Hurricane Electric LLC
AS9002 RETN Limited
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ASN API ASN Database Download

Downstreams

There are 7 downstreams for this ASN.

Downstreams Name
AS204957 GREEN FLOID LLC
AS207167 mapnet IT services s.r.o.
AS21045 K-net Technical International Group, s.r.o.
AS211085 mapnet IT services s.r.o.
AS48921 Yoursafe Holding B.V.
AS51134 Development 777 s.r.o.
AS64481 Joint Venture Dragon Capital LLC
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ASN API ASN Database Download

Pingable IPs

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

IP Address ASN Details
2a01:430:18c::2 AS24971 MasterDC s.r.o. 3.95ms from Bratislava, SK
2a03:3b40:101:94::1 AS24971 MasterDC s.r.o. 2.95ms from Bratislava, SK
2a01:430:141:1::1 AS24971 MasterDC s.r.o. 3.01ms from Bratislava, SK
89.185.237.203 AS24971 MasterDC s.r.o. 0.17ms from Brno, CZ
37.140.220.93 AS24971 MasterDC s.r.o. 0.14ms from Brno, CZ
89.185.233.161 AS24971 MasterDC s.r.o. 0.17ms from Brno, CZ
149.62.148.232 AS24971 MasterDC s.r.o. 0.18ms from Brno, CZ
85.118.134.252 AS24971 MasterDC s.r.o. 0.14ms from Brno, CZ
2a01:430:28e::2 AS24971 MasterDC s.r.o. 5.31ms from Brno, CZ
2a0c:6380:1:104::1 AS24971 MasterDC s.r.o. 0.36ms from Prague, CZ
178.238.36.160 AS24971 MasterDC s.r.o. 0.24ms from Prague, CZ
5.180.202.1 AS24971 MasterDC s.r.o. 0.24ms from Prague, CZ
2a01:430:230:0:beef:ffff:ffff:ffff AS24971 MasterDC s.r.o. 0.36ms from Prague, CZ
2a01:430:266::1 AS24971 MasterDC s.r.o. 0.36ms from Prague, CZ
2a0c:6380::39 AS24971 MasterDC s.r.o. 0.31ms from Prague, CZ
2a01:430:237:0:beef:ffff:ffff:ffff AS24971 MasterDC s.r.o. 0.39ms from Prague, CZ
2a01:430:20d::1 AS24971 MasterDC s.r.o. 0.33ms from Prague, CZ
2a01:430:238::2 AS24971 MasterDC s.r.o. 0.40ms from Prague, CZ
77.93.220.12 AS24971 MasterDC s.r.o. 0.18ms from Brno, CZ
89.185.224.26 AS24971 MasterDC s.r.o. 0.14ms from Brno, CZ
185.32.160.253 AS24971 MasterDC s.r.o. 0.22ms from Brno, CZ
81.31.43.201 AS24971 MasterDC s.r.o. 0.12ms from Brno, CZ
2a01:430:22c:0:beef:ffff:ffff:ffff AS24971 MasterDC s.r.o. 0.40ms from Prague, CZ
2a01:430:26c::100 AS24971 MasterDC s.r.o. 0.34ms from Prague, CZ
37.205.15.253 AS24971 MasterDC s.r.o. 0.22ms from Prague, 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
146.70.54.91 AS9009 M247 Europe SRL 0.09ms from Belgrade, RS
54.184.182.91 AS16509 Amazon.com, Inc. 0.14ms from Boardman, US
89.238.254.155 AS6663 Euroweb Romania S.R.L. 1.04ms from Bucharest, RO
99.7.241.139 AS7018 AT&T Enterprises, LLC 3.54ms from Dallas, US
87.95.161.43 AS16086 DNA Oyj 2.11ms from Helsinki, FI
69.48.200.139 AS8560 IONOS SE 0.59ms from Lenexa, US
70.181.225.235 AS22773 Cox Communications Inc. 7.46ms from Los Angeles, US
82.130.248.91 AS12338 Euskaltel S.A. 1.85ms from Madrid, ES
73.139.229.75 AS7922 Comcast Cable Communications, LLC 4.23ms from Miami, US
121.84.104.187 AS17511 OPTAGE Inc. 2.56ms from Osaka, JP
218.115.98.155 AS17676 SoftBank Corp. 4.13ms from Osaka, JP
125.195.52.139 AS2518 BIGLOBE Inc. 10.96ms from Osaka, JP
186.195.169.11 AS274804 WIGOLD LTDA 10.97ms from Osasco, BR
88.223.177.123 AS2914 NTT America, Inc. 6.43ms from Paris, FR
121.157.244.219 AS4766 Korea Telecom 3.18ms from Seoul, KR
193.80.114.219 AS8447 A1 Telekom Austria AG 9.15ms from Vienna, AT
186.19.185.251 AS27747 Telecentro S.A. 3.96ms from Buenos Aires, AR
219.151.151.75 AS134420 Chongqing Telecom 0.59ms from Chongqing, CN
67.166.9.219 AS7922 Comcast Cable Communications, LLC 4.92ms from Denver, US
206.42.62.91 AS28126 BRISANET SERVICOS DE TELECOMUNICACOES S.A 5.45ms from Fortaleza, BR
51.75.84.251 AS16276 OVH SAS 0.13ms from Frankfurt am Main, DE
58.176.242.155 AS9269 Hong Kong Broadband Network Ltd. 1.27ms from Hong Kong, HK
3.33.197.203 AS16509 Amazon.com, Inc. 0.04ms from Lima, PE
148.63.71.59 AS12353 Vodafone Portugal 2.72ms from Lisbon, PT
5.225.247.59 AS12430 VODAFONE ESPANA S.A.U. 12.53ms from Madrid, ES

Traceroute

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

$
traceroute -a -n -q1 -f3 81.31.40.5
traceroute to 81.31.40.5 (81.31.40.5): 64 hops max, 52 byte packets
4 [AS24971] 81.31.40.5 0.195 ms
Measurement taken from IPinfo ProbeNet in Brno, CZ
On

Related Networks

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 AS24971 at robtex.

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