AS number details

AS43757

ICZ a.s.  ·  i.cz

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AS43757 – ICZ a.s.

Field Value
Country Czechia
Website i.cz
Hosted domains 84
Number of IPv4 2,304
Number of IPv6 1,208,925,819,614,629,174,706,176
ASN type Business
Registry ripe
Allocated 18 years ago on Sep 24, 2007
Updated 21 days ago on Oct 02, 2025
Netblock Company Num of IPs
78.31.24.0/21 ICZ a.s. 2,048
192.108.126.0/24 ICZ a.s. 256
Netblock Company
2001:67c:1578::/48 ICZ a.s.
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WHOIS Details


                                                ASHandle:       AS43757
                                                OrgID:          AS43757
                                                ASName:         AS43757
                                                ASNumber:       AS43757
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA

                                            
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Hosted Domains

There are 84 domain names hosted across 3 IP addresses on this ASN.

IP Address Domain Domains on this IP
78.31.26.115 ███████ 76
78.31.27.181 ██████████ 10
78.31.27.187 ████████ 1

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Useful for Cybersecurity

Peers

There are 3 peers for this ASN.

Peers Name
AS5578 SWAN, a.s.
AS5610 O2 Czech Republic, a.s.
AS6855 Slovak Telekom, a.s.
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Upstreams

There are 3 upstreams for this ASN.

upstreams Name
AS5578 SWAN, a.s.
AS5610 O2 Czech Republic, a.s.
AS6855 Slovak Telekom, a.s.
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Downstreams

There are no downstreams for this ASN.

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Pingable IPs

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

IP Address ASN Details
78.31.29.2 AS43757 ICZ a.s. 1.25ms from Prague, CZ
78.31.26.65 AS43757 ICZ a.s. 1.17ms from Prague, CZ
2001:67c:1578:8101:0:1:0:2 AS43757 ICZ a.s. 1.18ms from Prague, CZ
78.31.25.2 AS43757 ICZ a.s. 1.24ms from Prague, CZ
78.31.27.249 AS43757 ICZ a.s. 1.14ms from Prague, CZ
78.31.31.251 AS43757 ICZ a.s. 1.32ms from Prague, CZ
192.108.126.10 AS43757 ICZ a.s. 2.34ms from Bratislava, SK
78.31.24.254 AS43757 ICZ a.s. 0.99ms 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
202.29.21.205 AS4621 UNINET-TH 6.15ms from Bangkok, TH
99.110.1.157 AS7018 AT&T Enterprises, LLC 19.37ms from Chicago, US
84.177.225.141 AS3320 Deutsche Telekom AG 7.31ms from Frankfurt am Main, DE
61.164.217.125 AS4134 CHINANET-BACKBONE 5.64ms from Hangzhou, CN
104.59.104.45 AS7018 AT&T Enterprises, LLC 3.90ms from Houston, US
61.178.110.13 AS4134 CHINANET-BACKBONE 1.29ms from Lanzhou, CN
104.20.49.29 AS13335 Cloudflare, Inc. 0.12ms from Lima, PE
41.102.90.189 AS36947 Telecom Algeria 15.44ms from Madrid, ES
194.84.190.189 AS2854 LLC Orange Business Services 1.95ms from Moscow, RU
144.24.124.45 AS31898 Oracle Corporation 0.18ms from Mumbai, IN
50.30.144.13 AS23473 PAVLOV MEDIA INC 1.90ms from Orlando, US
189.14.87.157 AS28277 VMAX DIGITAL DO BRASIL LTDA 2.42ms from Sao Paulo, BR
210.181.142.29 AS9970 Korea University of Technology and Education 3.42ms from Seoul, KR
126.66.231.29 AS17676 SoftBank Corp. 3.18ms from Tokyo, JP
197.6.191.93 AS327934 SOCIETE NATIONALE DES TELECOMMUNICATIONS (Tunisie Telecom) 11.98ms from Tunis, TN
52.37.53.125 AS16509 Amazon.com, Inc. 0.14ms from Boardman, US
179.108.250.205 AS263276 BBG TELECOM LTDA 11.66ms from Fortaleza, BR
91.63.149.189 AS3320 Deutsche Telekom AG 6.90ms from Frankfurt am Main, DE
119.133.34.61 AS136199 CHINANET Guangdong province Yuedong MAN network 3.02ms from Guangzhou, CN
68.13.121.125 AS22773 Cox Communications Inc. 5.17ms from Kansas City, US
134.213.147.13 AS15395 Rackspace Ltd. 1.76ms from London, GB
31.127.183.141 AS2856 British Telecommunications PLC 2.60ms from London, GB
50.159.245.13 AS22773 Cox Communications Inc. 8.91ms from Los Angeles, US
84.201.175.77 AS200350 Yandex.Cloud LLC 2.56ms from Moscow, RU
82.149.223.93 AS6863 OJSC Rosnet 1.04ms from Moscow, RU

Traceroute

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

$
traceroute -a -n -q1 -f4 192.108.126.13
traceroute to 192.108.126.13 (192.108.126.13): 64 hops max, 52 byte packets
4 [AS5578] 62.168.90.137 0.624 ms
5 [AS5578] 62.168.90.86 0.685 ms
Measurement taken from IPinfo ProbeNet in Bratislava, SK
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 AS43757 at robtex.

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