Autonomous System details

AS43757

ICZ a.s.  ·  i.cz

Need more data or want to access it via API or data downloads? Sign up to get free access

Sign up for free ›

AS43757 – ICZ a.s.

Field Value
Country Czechia
Website i.cz
Hosted domains 84
IPv4 addresses 2,304
IPv6 addresses 1,208,925,819,614,629,174,706,176
ASN type Business
Registry ripe
Allocated 18 years ago on Sep 24, 2007
Updated 2 months 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.
Get this data and more with IPinfo's powerful IP Ranges API - quickly and easily identify company-owned IP ranges.
IP Ranges API

WHOIS Details


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

                                            
Get this data and more with IPinfo's WHOIS product - effortless access to POCs, ORGs, and Networks, for actionable intelligence.

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

Discover all domains hosted on a single IP address with IPinfo's powerful Hosted Domains (Reverse IP) solution.
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.
Get this data and more insights on related domains, allocation dates, registry names, IP counts with IPinfo's IP-to-ASN product.

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.
Get this data and more insights on related domains, allocation dates, registry names, IP counts with IPinfo's IP-to-ASN product.

Downstreams

There are no downstreams for this ASN.

Get this data and more insights on related domains, allocation dates, registry names, IP counts with IPinfo's IP-to-ASN product.

Pingable IPs

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

IP Address ASN Details
78.31.27.86 AS43757 ICZ a.s. 1.16ms from Prague, CZ
78.31.24.2 AS43757 ICZ a.s. 1.00ms from Prague, CZ
78.31.26.1 AS43757 ICZ a.s. 1.20ms from Prague, CZ
78.31.29.1 AS43757 ICZ a.s. 1.32ms from Prague, CZ
78.31.25.2 AS43757 ICZ a.s. 1.20ms from Prague, CZ
78.31.31.252 AS43757 ICZ a.s. 1.21ms from Prague, CZ
2001:67c:1578:8101:0:1:0:2 AS43757 ICZ a.s. 1.17ms from Prague, CZ
192.108.126.3 AS43757 ICZ a.s. 2.34ms from Bratislava, SK

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
94.168.99.61 AS33915 Vodafone Libertel B.V. 5.59ms from Amsterdam, NL
14.165.36.77 AS45899 VNPT Corp 5.73ms from Da Nang, VN
73.78.20.61 AS7922 Comcast Cable Communications, LLC 5.96ms from Denver, US
3.74.9.141 AS16509 Amazon.com, Inc. 0.16ms from Frankfurt am Main, DE
171.229.242.125 AS7552 Viettel Group 1.50ms from Hanoi, VN
175.138.66.93 AS4788 TM TECHNOLOGY SERVICES SDN. BHD. 1.77ms from Kuala Lumpur, MY
197.211.211.93 AS37332 Zimbabwe Online 11.94ms from Lusaka, ZM
93.174.114.221 AS42132 Digit One LLC 0.55ms from Moscow, RU
84.250.14.29 AS1759 Telia Finland Oyj 0.56ms from Oulu, FI
112.239.243.253 AS4837 CHINA UNICOM China169 Backbone 9.32ms from Qingdao, CN
98.145.132.77 AS10838 Charter Communications Inc 10.14ms from Seattle, US
129.226.84.253 AS132203 Tencent Building, Kejizhongyi Avenue 0.26ms from Singapore, SG
126.3.148.45 AS17676 SoftBank Corp. 14.81ms from Tokyo, JP
202.135.151.109 AS2687 AT&T Enterprises, LLC 2.21ms from Tokyo, JP
174.89.138.141 AS577 Bell Canada 2.71ms from Toronto, CA
84.148.149.141 AS3320 Deutsche Telekom AG 2.61ms from Berlin, DE
176.57.149.45 AS56876 Ociris GmbH 0.57ms from Frankfurt am Main, DE
89.233.201.189 AS29518 Bredband2 AB 8.66ms from Hamburg, DE
218.92.200.157 AS4134 CHINANET-BACKBONE 6.93ms from Huai'an, CN
74.40.71.157 AS5650 Frontier Communications of America, Inc. 0.46ms from Los Angeles, US
101.181.128.157 AS1221 Telstra Limited 1.46ms from Melbourne, AU
37.213.146.221 AS6697 Republican Unitary Telecommunication Enterprise Beltelecom 5.24ms from Minsk, BY
94.230.47.141 AS48475 Closed Joint Stock Company Oskolnet 15.07ms from Moscow, RU
153.201.66.77 AS4713 NTT DOCOMO BUSINESS,Inc. 5.00ms from Osaka, JP
192.175.37.13 AS48920 TOILE LIBRE 6.00ms from Paris, FR

Traceroute

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

$
traceroute -a -n -q1 -f5 192.108.126.3
traceroute to 192.108.126.3 (192.108.126.3): 64 hops max, 52 byte packets
5 [AS5578] 62.168.90.86 0.761 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.

Data built with users in mind: reliable, accurate, and easy-to-use

Discover why industry-leading companies around the globe love our data. IPinfo's accurate insights fuel use cases from cybersecurity, data enrichment, web personalization, and much more.

IPinfo for all your IP geolocation needs

Our IP tools

Explore all tools
What is my IP

What is my IP

Test our data accuracy by viewing insights from your IP address.

See your IP address
Map IPs

Map IPs

Paste up to 500,000 IPs to see where they're located on a map.

Try Map IPs
Summarize IPs

Summarize IPs

Use our data visualization tool to create a visual overview of multiple IPs.

Try Summarize IPs