AS number details

AS39790

Web4U s.r.o.  ·  web4u.cz

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AS39790 – Web4U s.r.o.

Field Value
Country Czechia
Website web4u.cz
Hosted domains 46,678
Number of IPv4 5,120
Number of IPv6 158,456,325,028,528,675,187,087,900,672
ASN type Hosting
Registry ripe
Allocated 20 years ago on Apr 25, 2006
Updated 8 months ago on Feb 14, 2025
Netblock Company Num of IPs
81.91.80.0/20 Web4U s.r.o. 4,096
81.91.80.0/21 Web4U s.r.o. 2,048
81.91.88.0/21 Web4U s.r.o. 2,048
185.14.224.0/22 Web4U s.r.o. 1,024
185.14.224.0/23 WEB4U - customers 512
Netblock Company
2001:1568::/32 Web4U s.r.o.
2001:1568::/33 Web4U s.r.o.
2001:1568:8000::/33 Web4U s.r.o.
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WHOIS Details


                                                ASHandle:       AS39790
                                                OrgID:          AS39790
                                                ASName:         AS39790
                                                ASNumber:       AS39790
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA

                                            
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Hosted Domains

There are 46,678 domain names hosted across 489 IP addresses on this ASN.

IP Address Domain Domains on this IP
81.91.86.14 █████████ 26,506
81.91.86.12 ██████████ 5,374
81.91.86.13 ██████████ 3,273
81.91.86.11 ██████████ 2,649
81.91.86.10 ███████ 681
81.91.84.215 ██████████ 458
81.91.84.107 ██████████ 360
81.91.84.51 ██████████ 348
81.91.92.221 ██████████ 340
81.91.82.42 ██████████ 276

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Useful for Cybersecurity

Peers

There are 25 peers for this ASN.

Peers Name
AS14840 BR.Digital Provider
AS1764 Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbH
AS198150 SIACOM JSC
AS199803 ComSource
AS212483 LEVEL EIGHTY-SIX COMMUNICATIONS LTD
AS22356 Durand do Brasil Ltda
AS24482 SG.GS
AS25248 RADIOKOMUNIKACE a.s.
AS263444 Open X Tecnologia Ltda
AS29504 Freenet Liberec, z.s.
AS32590 Valve Corporation
AS33891 Core-Backbone GmbH
AS36236 NetActuate, Inc
AS39120 Convergenze S.p.A.
AS40994 Hohl IT e.U.
AS4455 IX Reach Ltd
AS47200 NIX.CZ z.s.p.o.
AS49544 i3D.net B.V
AS5405 Inter.link GmbH
AS57463 NetIX Communications JSC
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
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
AS199803 ComSource
AS25248 RADIOKOMUNIKACE a.s.
AS6939 Hurricane Electric LLC
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Downstreams

There are no downstreams for this ASN.

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Pingable IPs

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

IP Address ASN Details
81.91.91.39 AS39790 Web4U s.r.o. 0.44ms from Prague, CZ
2001:1568:502::1 AS39790 Web4U s.r.o. 0.59ms from Prague, CZ
81.91.80.130 AS39790 Web4U s.r.o. 0.46ms from Prague, CZ
81.91.83.168 AS39790 Web4U s.r.o. 0.39ms from Prague, CZ
2001:1568::19 AS39790 Web4U s.r.o. 0.49ms from Prague, CZ
2001:1568:ac17:2::138 AS39790 Web4U s.r.o. 0.60ms from Prague, CZ
2001:1568:900::116 AS39790 Web4U s.r.o. 0.65ms from Prague, CZ
81.91.92.226 AS39790 Web4U s.r.o. 0.42ms from Prague, CZ
81.91.86.15 AS39790 Web4U s.r.o. 0.42ms from Prague, CZ
2001:1568:85:178::1 AS39790 Web4U s.r.o. 0.62ms from Prague, CZ
2001:1568:fd::241 AS39790 Web4U s.r.o. 0.54ms from Prague, CZ
2001:1568:d:289::f7 AS39790 Web4U s.r.o. 0.53ms from Prague, CZ
2001:1568:19::2 AS39790 Web4U s.r.o. 0.56ms from Prague, CZ
2001:1568:93:26::1 AS39790 Web4U s.r.o. 0.61ms from Prague, CZ
81.91.93.37 AS39790 Web4U s.r.o. 0.52ms from Prague, CZ
81.91.87.164 AS39790 Web4U s.r.o. 0.39ms from Prague, CZ
2001:1568:2::2 AS39790 Web4U s.r.o. 0.56ms from Prague, CZ
2001:1568:f::162:221 AS39790 Web4U s.r.o. 0.51ms from Prague, CZ
2001:1568:92:41:5::1 AS39790 Web4U s.r.o. 0.57ms from Prague, CZ
185.14.224.198 AS39790 Web4U s.r.o. 0.44ms from Prague, CZ
81.91.95.25 AS39790 Web4U s.r.o. 0.51ms from Prague, CZ
2001:1568:84:210::1 AS39790 Web4U s.r.o. 0.59ms from Prague, CZ
2001:1568:ffff:: AS39790 Web4U s.r.o. 0.59ms from Prague, CZ
2001:1568:13::216 AS39790 Web4U s.r.o. 0.53ms from Prague, CZ
2001:1568:17::92 AS39790 Web4U s.r.o. 0.73ms 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
66.84.189.126 AS7029 Windstream Communications LLC 6.21ms from Ashburn, US
178.24.204.254 AS3209 Vodafone GmbH 2.78ms from Berlin, DE
98.101.130.206 AS11426 Charter Communications Inc 0.78ms from Charlotte, US
18.220.124.238 AS16509 Amazon.com, Inc. 0.16ms from Columbus, US
50.84.171.190 AS11427 Charter Communications Inc 6.45ms from Dallas, US
138.108.140.254 AS16477 Nielsen Consumer LLC 1.99ms from Hong Kong, HK
204.76.183.142 AS3390 University of Missouri - Kansas City 15.61ms from Kansas City, US
60.49.177.254 AS4788 TM TECHNOLOGY SERVICES SDN. BHD. 2.10ms from Kuala Lumpur, MY
2.37.119.62 AS30722 Vodafone Italia S.p.A. 7.58ms from Milan, IT
71.53.132.254 AS19901 Brightspeed 2.51ms from New York City, US
87.161.198.14 AS3320 Deutsche Telekom AG 7.70ms from Nuernberg, DE
89.11.182.78 AS29695 Altibox AS 3.12ms from Oslo, NO
195.220.135.190 AS2200 Renater 2.76ms from Paris, FR
174.23.104.254 AS209 CenturyLink Communications, LLC 0.89ms from Salt Lake City, US
65.102.179.254 AS209 CenturyLink Communications, LLC 0.77ms from Seattle, US
73.193.174.30 AS7922 Comcast Cable Communications, LLC 5.73ms from Secaucus, US
115.1.17.62 AS4766 Korea Telecom 2.10ms from Seoul, KR
14.87.27.222 AS4766 Korea Telecom 1.56ms from Seoul, KR
180.242.239.14 AS7713 PT Telekomunikasi Indonesia 9.91ms from Singapore, SG
209.162.253.46 AS20161 TeraGo Networks Inc. 0.69ms from Toronto, CA
81.8.238.78 AS25176 AC-Net AB 7.14ms from Umea, SE
88.208.51.238 AS39572 DataWeb Global Group B.V. 0.23ms from Amsterdam, NL
111.163.181.110 AS4837 CHINA UNICOM China169 Backbone 5.21ms from Beijing, CN
104.114.110.62 AS16625 Akamai Technologies, Inc. 0.22ms from Bengaluru, IN
113.222.255.110 AS4134 CHINANET-BACKBONE 2.25ms from Changsha, CN

Traceroute

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

$
traceroute -a -n -q1 -f3 -m8 185.14.225.17
traceroute to 185.14.225.17 (185.14.225.17): 8 hops max, 52 byte packets
3 [AS3356] 212.133.7.109 42.862 ms
4 *
5 [AS3356] 212.133.51.18 22.899 ms
6 *
7 *
8 *
Measurement taken from IPinfo ProbeNet in Milan, IT
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 AS39790 at robtex.

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