Autonomous System details

AS24806

INTERNET CZ, a.s. · forpsi.com

Czechia

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AS24806 – INTERNET CZ, a.s.

Field	Value
Country	Czechia
Website	forpsi.com
Hosted domains	389,745
IPv4 addresses	45,824
IPv6 addresses	79,228,162,514,264,337,593,543,950,336
ASN type	Hosting
Registry	ripe
Allocated	23 years ago on Sep 24, 2002
Updated	a year ago on Mar 20, 2025

Netblock	Company	Num of IPs
81.2.192.0/18	INTERNET CZ, a.s.	16,384
80.211.192.0/19	Cloud Services CZ1	8,192
194.182.64.0/19	Aruba S.p.A.	8,192
85.255.0.0/20	Cloud Services CZ1	4,096
195.181.208.0/20	INTERNET CZ, a.s.	4,096
185.28.100.0/22	INTERNET CZ, a.s.	1,024
185.33.144.0/22	Cloud Services CZ1	1,024
185.129.136.0/22	INTERNET CZ, a.s.	1,024
185.186.20.0/22	AlphaNet spolka z o. o.	1,024
193.105.158.0/23	ASPone, s.r.o.	512
80.211.223.0/24	Cloud Services CZ1	256
193.105.157.0/24	ASPone, s.r.o.	256

Netblock	Company
2001:15e8::/32	INTERNET CZ, a.s.

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WHOIS Details

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                                                ASHandle:       AS24806
                                                OrgID:          AS24806
                                                ASName:         AS24806
                                                ASNumber:       AS24806
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA

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Hosted Domains

There are 389,745 domain names hosted across 5,485 IP addresses on this ASN.

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IP Address	Domain	Domains on this IP
81.2.196.19	██████████	199,724
81.2.194.128	██████████	42,263
81.2.196.60	██████████	17,255
185.129.138.202	██████████	10,854
185.129.138.60	██████████	8,217
81.2.196.170	██████████	6,184
185.129.138.40	██████████	6,133
81.2.195.30	██████████	4,307
185.129.138.221	██████████	3,803
81.2.195.254	██████████	3,798

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Peers

There are 28 peers for this ASN.

Peers	Name
AS1299	Arelion Sweden AB
AS15576	NTS workspace AG
AS15958	CETINdoo-NET
AS16019	Vodafone Czech Republic a.s.
AS174	Cogent Communications, LLC
AS1764	Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbH
AS198150	SIACOM JSC
AS19905	Vercara, LLC
AS21215	UNITED GROUP NETWORK INFRASTRUCTURE d.o.o. Beograd
AS212483	LEVEL EIGHTY-SIX COMMUNICATIONS LTD
AS24482	SG.GS
AS263444	Open X Tecnologia Ltda
AS29504	Freenet Liberec, z.s.
AS31034	Aruba S.p.A.
AS32590	Valve Corporation
AS36236	NetActuate, Inc
AS39120	Convergenze S.p.A.
AS40994	Hohl IT e.U.
AS4455	IX Reach Ltd
AS44901	Belcloud LTD
AS47692	Nessus GmbH
AS49544	i3D.net B.V
AS51184	Fonira Telekom GmbH
AS6204	INTERKVM HOST SRL
AS6663	Euroweb Romania S.R.L.
AS6881	NIX.CZ z.s.p.o.
AS6939	Hurricane Electric LLC
AS8218	Zayo Infrastructure France SA

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Upstreams

There are 5 upstreams for this ASN.

upstreams	Name
AS1299	Arelion Sweden AB
AS16019	Vodafone Czech Republic a.s.
AS174	Cogent Communications, LLC
AS19905	Vercara, LLC
AS6939	Hurricane Electric LLC

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Downstreams

There are no downstreams for this ASN.

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ASN API & Database

Pingable IPs

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

IP Address	ASN	Details
194.182.72.110	AS24806 INTERNET CZ, a.s.	`3.51ms` from Prague, CZ
81.2.253.20	AS24806 INTERNET CZ, a.s.	`3.52ms` from Prague, CZ
194.182.75.157	AS24806 INTERNET CZ, a.s.	`3.53ms` from Prague, CZ
80.211.217.8	AS24806 INTERNET CZ, a.s.	`3.48ms` from Prague, CZ
185.28.101.109	AS24806 INTERNET CZ, a.s.	`3.50ms` from Prague, CZ
81.2.247.251	AS24806 INTERNET CZ, a.s.	`3.53ms` from Prague, CZ
81.2.246.145	AS24806 INTERNET CZ, a.s.	`3.52ms` from Prague, CZ
80.211.194.69	AS24806 INTERNET CZ, a.s.	`3.50ms` from Prague, CZ
81.2.234.36	AS24806 INTERNET CZ, a.s.	`3.44ms` from Prague, CZ
2001:15e8:301:1::c185	AS24806 INTERNET CZ, a.s.	`0.41ms` from Prague, CZ
81.2.239.207	AS24806 INTERNET CZ, a.s.	`3.52ms` from Prague, CZ
195.181.219.4	AS24806 INTERNET CZ, a.s.	`3.53ms` from Prague, CZ
81.2.241.174	AS24806 INTERNET CZ, a.s.	`3.48ms` from Prague, CZ
81.2.206.193	AS24806 INTERNET CZ, a.s.	`3.59ms` from Prague, CZ
185.33.144.127	AS24806 INTERNET CZ, a.s.	`3.46ms` from Prague, CZ
2001:15e8:102:1::c495	AS24806 INTERNET CZ, a.s.	`3.55ms` from Prague, CZ
194.182.66.222	AS24806 INTERNET CZ, a.s.	`3.52ms` from Prague, CZ
81.2.240.21	AS24806 INTERNET CZ, a.s.	`3.55ms` from Prague, CZ
80.211.196.53	AS24806 INTERNET CZ, a.s.	`3.50ms` from Prague, CZ
194.182.92.254	AS24806 INTERNET CZ, a.s.	`3.52ms` from Prague, CZ
80.211.213.212	AS24806 INTERNET CZ, a.s.	`3.51ms` from Prague, CZ
185.33.147.2	AS24806 INTERNET CZ, a.s.	`3.73ms` from Prague, CZ
2001:15e8:103:1::c5e0	AS24806 INTERNET CZ, a.s.	`3.49ms` from Prague, CZ
185.33.146.199	AS24806 INTERNET CZ, a.s.	`3.54ms` from Prague, CZ
185.28.100.198	AS24806 INTERNET CZ, a.s.	`3.51ms` 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
5.193.118.70	AS5384 Emirates Internet	`2.59ms` from Al Fujairah City, AE
97.247.68.54	AS6167 Verizon Business	`17.88ms` from Denver, US
212.20.173.6	AS13039 Global Village GmbH	`19.97ms` from Duesseldorf, DE
187.228.51.150	AS8151 UNINET	`0.93ms` from Guadalajara, MX
59.148.155.54	AS9269 Hong Kong Broadband Network Ltd.	`1.33ms` from Hong Kong, HK
118.100.194.54	AS4788 TM TECHNOLOGY SERVICES SDN. BHD.	`2.18ms` from Kuala Lumpur, MY
31.49.233.198	AS2856 British Telecommunications PLC	`3.07ms` from London, GB
79.41.225.166	AS3269 Telecom Italia S.p.A.	`0.94ms` from Milan, IT
217.9.152.198	AS12389 PJSC Rostelecom	`16.06ms` from Moscow, RU
221.7.200.118	AS4837 CHINA UNICOM China169 Backbone	`14.37ms` from Nanning, CN
38.140.21.182	AS174 Cogent Communications, LLC	`0.55ms` from New York City, US
100.8.112.246	AS701 Verizon Business	`1.91ms` from New York City, US
20.14.11.166	AS8075 Microsoft Corporation	`0.16ms` from Phoenix, US
27.207.250.22	AS4837 CHINA UNICOM China169 Backbone	`7.78ms` from Qingdao, CN
211.200.58.182	AS9318 SK Broadband Co Ltd	`1.11ms` from Seoul, KR
196.234.254.22	AS37492 Orange Tunisie	`2.13ms` from Tunis, TN
188.211.39.118	AS58224 Iran Telecommunication Company PJS	`16.60ms` from Yerevan, AM
102.214.54.246	AS329154 First Atlantic Bank Limited	`0.68ms` from Accra, GH
5.195.153.38	AS5384 Emirates Internet	`11.18ms` from Al Fujairah City, AE
162.234.40.150	AS7018 AT&T Enterprises, LLC	`13.46ms` from Atlanta, US
71.234.144.182	AS7922 Comcast Cable Communications, LLC	`7.34ms` from Boston, US
135.106.93.22	AS44559 IT HOSTLINE LTD	`0.13ms` from Bucharest, RO
77.24.24.166	AS3209 Vodafone GmbH	`0.81ms` from Hamburg, DE
31.24.149.102	AS49855 PLUTEX GmbH	`2.18ms` from Hamburg, DE
91.135.3.22	AS12496 IDNet	`1.93ms` from London, GB

Traceroute

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

traceroute -a -n -q1 -f2 -m12 81.2.213.75

traceroute to 81.2.213.75 (81.2.213.75): 12 hops max, 52 byte packets

2 [AS208328] 85.155.151.145 0.081 ms

3 *

4 [AS395954] 172.255.243.1 10.043 ms

5 [AS1299] 213.248.94.54 10.633 ms

6 *

7 *

8 *

9 [AS24806] 81.2.192.18 27.785 ms

10 *

11 *

12 *

Measurement taken from

IPinfo ProbeNet in Bologna, IT

On February 27th 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 AS24806 at robtex.

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