AS number details

AS39790

Web4U s.r.o.  ·  web4u.cz

AS39790 – Web4U s.r.o.

Field Value
Country Czechia
Website web4u.cz
Hosted domains 42,191
Number of IPv4 5,120
Number of IPv6 158,456,325,028,528,675,187,087,900,672
ASN type Hosting
Registry ripe
Allocated 18 years ago on Apr 25, 2006
Updated 6 months ago on Aug 07, 2023
Netblock Company Num of IPs
185.14.224.0/22 Web4U s.r.o. 1,024
185.14.224.0/23 WEB4U - customers 512
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
Netblock Company
2001:1568::/32 Web4U s.r.o.
2001:1568::/33 Web4U s.r.o.
2001:1568:8000::/33 Web4U s.r.o.
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

aut-num:        AS39790
as-name:        WEB4U
org:            ORG-WS296-RIPE
remarks:        
remarks:        ===================================================================
remarks:        ===[ UPSTREAM CONNECTIVITY ]=======================================
remarks:        ===================================================================
remarks:        
remarks:        ---[ Vodafone ]---
import:         from AS16019 accept ANY
export:         to AS16019 announce AS-WEB4U
mp-import:      afi ipv6.unicast from AS16019 accept ANY
mp-export:      afi ipv6.unicast to AS16019 announce AS-WEB4U
remarks:        ---[ CRA ]---
import:         from AS25248 accept ANY
export:         to AS25248 announce AS-WEB4U
mp-import:      afi ipv6.unicast from AS25248 accept ANY
mp-export:      afi ipv6.unicast to AS25248 announce AS-WEB4U
remarks:        
remarks:        ===================================================================
remarks:        ===[ NIX.CZ IPV4 PEERINGS ]========================================
remarks:        ===================================================================
remarks:        
remarks:        ---[ AS112 ]---
import:         from AS112 accept ANY
export:         to AS112 announce AS-WEB4U
remarks:        ---[ CESNET2 ]---
import:         from AS2852 accept ANY
export:         to AS2852 announce AS-WEB4U
remarks:        ---[ GTSCE ]---
import:         from AS5588 accept ANY
export:         to AS5588 announce AS-WEB4U
remarks:        ---[ O2-CZECH-REPUBLIC ]---
import:         from AS5610 accept ANY
export:         to AS5610 announce AS-WEB4U
remarks:        ---[ NIXCZ ]---
import:         from AS6881 accept ANY
export:         to AS6881 announce AS-WEB4U
remarks:        ---[ HURRICANE ]---
import:         from AS6939 accept ANY
export:         to AS6939 announce AS-WEB4U
remarks:        ---[ NFX_ZSPO ]---
import:         from AS8251 accept ANY
export:         to AS8251 announce AS-WEB4U
remarks:        ---[ IPNet ]---
import:         from AS8913 accept ANY
export:         to AS8913 announce AS-WEB4U
remarks:        ---[ ITSELF ]---
import:         from AS12570 accept ANY
export:         to AS12570 announce AS-WEB4U
remarks:        ---[ CASABLANCA ]---
import:         from AS15685 accept ANY
export:         to AS15685 announce AS-WEB4U
remarks:        ---[ HA-VEL ]---
import:         from AS15935 accept ANY
export:         to AS15935 announce AS-WEB4U
remarks:        ---[ VODAFONE-CZ ]---
import:         from AS16019 accept ANY
export:         to AS16019 announce AS-WEB4U
remarks:        ---[ NEJ ]---
import:         from AS16246 accept ANY
export:         to AS16246 announce AS-WEB4U
remarks:        ---[ OVH ]---
import:         from AS16276 accept ANY
export:         to AS16276 announce AS-WEB4U
remarks:        ---[ MGI ]---
import:         from AS20723 accept ANY
export:         to AS20723 announce AS-WEB4U
remarks:        ---[ WIA ]---
import:         from AS21430 accept ANY
export:         to AS21430 announce AS-WEB4U
remarks:        ---[ INTERNET-CZ ]---
import:         from AS24806 accept ANY
export:         to AS24806 announce AS-WEB4U
remarks:        ---[ MASTER ]---
import:         from AS24971 accept ANY
export:         to AS24971 announce AS-WEB4U
remarks:        ---[ CZNIC ]---
import:         from AS25192 accept ANY
export:         to AS25192 announce AS-WEB4U
remarks:        ---[ GLOBE ]---
import:         from AS25234 accept ANY
export:         to AS25234 announce AS-WEB4U
remarks:        ---[ BlueTone ]---
import:         from AS25248 accept ANY
export:         to AS25248 announce AS-WEB4U
remarks:        ---[ INEXT-CZ ]---
import:         from AS25424 accept ANY
export:         to AS25424 announce AS-WEB4U
remarks:        ---[ CDT ]---
import:         from AS25512 accept ANY
export:         to AS25512 announce AS-WEB4U
remarks:        ---[ FORTECH-CZ ]---
import:         from AS28851 accept ANY
export:         to AS28851 announce AS-WEB4U
remarks:        ---[ MSOFT ]---
import:         from AS28972 accept ANY
export:         to AS28972 announce AS-WEB4U
remarks:        ---[ GITY ]---
import:         from AS29086 accept ANY
export:         to AS29086 announce AS-WEB4U
remarks:        ---[ IGNUM ]---
import:         from AS29134 accept ANY
export:         to AS29134 announce AS-WEB4U
remarks:        ---[ CZNIC-F-ROOT ]---
import:         from AS30134 accept ANY
export:         to AS30134 announce AS-WEB4U
remarks:        ---[ NETBOX ]---
import:         from AS31246 accept ANY
export:         to AS31246 announce AS-WEB4U
remarks:        ---[ MIRAMO ]---
import:         from AS34080 accept ANY
export:         to AS34080 announce AS-WEB4U
remarks:        ---[ OXID ]---
import:         from AS35214 accept ANY
export:         to AS35214 announce AS-WEB4U
remarks:        ---[ 2CONNECT ]---
import:         from AS35236 accept ANY
export:         to AS35236 announce AS-WEB4U
remarks:        ---[ GREPNET ]---
import:         from AS35361 accept ANY
export:         to AS35361 announce AS-WEB4U
remarks:        ---[ COOLHOUSING ]---
import:         from AS35592 accept ANY
export:         to AS35592 announce AS-WEB4U
remarks:        ---[ TRESTEL-SK ]---
import:         from AS38949 accept ANY
export:         to AS38949 announce AS-WEB4U
remarks:        ---[ DAT-AS ]---
import:         from AS39235 accept ANY
export:         to AS39235 announce AS-WEB4U
remarks:        ---[ CEZNET ]---
import:         from AS39791 accept ANY
export:         to AS39791 announce AS-WEB4U
remarks:        ---[ OVANET ]---
import:         from AS39817 accept ANY
export:         to AS39817 announce AS-WEB4U
remarks:        ---[ FREETEL-AS ]---
import:         from AS41711 accept ANY
export:         to AS41711 announce AS-WEB4U
remarks:        ---[ KAORA ]---
import:         from AS42000 accept ANY
export:         to AS42000 announce AS-WEB4U
remarks:        ---[ EDERA_Group ]---
import:         from AS42306 accept ANY
export:         to AS42306 announce AS-WEB4U
remarks:        ---[ SEZNAM-CZ ]---
import:         from AS43037 accept ANY
export:         to AS43037 announce AS-WEB4U
remarks:        ---[ ASNEW ]---
import:         from AS43413 accept ANY
export:         to AS43413 announce AS-WEB4U
remarks:        ---[ VSHOSTING ]---
import:         from AS43541 accept ANY
export:         to AS43541 announce AS-WEB4U
remarks:        ---[ METRONET ]---
import:         from AS43708 accept ANY
export:         to AS43708 announce AS-WEB4U
remarks:        ---[ ISPAlliance ]---
import:         from AS47232 accept ANY
export:         to AS47232 announce AS-WEB4U
remarks:        ---[ SUPRO ]---
import:         from AS47868 accept ANY
export:         to AS47868 announce AS-WEB4U
remarks:        ---[ TechCom ]---
import:         from AS61296 accept ANY
export:         to AS61296 announce AS-WEB4U
remarks:        ---[ M-NET ]---
import:         from AS197197 accept ANY
export:         to AS197197 announce AS-WEB4U
remarks:        
remarks:        ===================================================================
remarks:        ===[ NIX.CZ IPV6 PEERINGS ]========================================
remarks:        ===================================================================
remarks:        
remarks:        ---[ CESNET2 ]---
mp-import:      afi ipv6.unicast from AS2852 accept ANY
mp-export:      afi ipv6.unicast to AS2852 announce AS-WEB4U
remarks:        ---[ GTSCE ]---
mp-import:      afi ipv6.unicast from AS5588 accept ANY
mp-export:      afi ipv6.unicast to AS5588 announce AS-WEB4U
remarks:        ---[ NIXCZ ]---
mp-import:      afi ipv6.unicast from AS6881 accept ANY
mp-export:      afi ipv6.unicast to AS6881 announce AS-WEB4U
remarks:        ---[ HURRICANE ]---
mp-import:      afi ipv6.unicast from AS6939 accept ANY
mp-export:      afi ipv6.unicast to AS6939 announce AS-WEB4U
remarks:        ---[ CASABLANCA ]---
mp-import:      afi ipv6.unicast from AS15685 accept ANY
mp-export:      afi ipv6.unicast to AS15685 announce AS-WEB4U
remarks:        ---[ NEJ ]---
mp-import:      afi ipv6.unicast from AS16246 accept ANY
mp-export:      afi ipv6.unicast to AS16246 announce AS-WEB4U
remarks:        ---[ WIA ]---
mp-import:      afi ipv6.unicast from AS21430 accept ANY
mp-export:      afi ipv6.unicast to AS21430 announce AS-WEB4U
remarks:        ---[ INTERNET-CZ ]---
mp-import:      afi ipv6.unicast from AS24806 accept ANY
mp-export:      afi ipv6.unicast to AS24806 announce AS-WEB4U
remarks:        ---[ GLOBES ]---
mp-import:      afi ipv6.unicast from AS25234 accept ANY
mp-export:      afi ipv6.unicast to AS25234 announce AS-WEB4U
remarks:        ---[ CDT ]---
mp-import:      afi ipv6.unicast from AS25512 accept ANY
mp-export:      afi ipv6.unicast to AS25512 announce AS-WEB4U
remarks:        ---[ CZNIC-F-ROOT ]---
mp-import:      afi ipv6.unicast from AS30134 accept ANY
mp-export:      afi ipv6.unicast to AS30134 announce AS-WEB4U
remarks:        ---[ 2CONNECT ]---
mp-import:      afi ipv6.unicast from AS35236 accept ANY
mp-export:      afi ipv6.unicast to AS35236 announce AS-WEB4U
remarks:        ---[ CEZNET ]---
mp-import:      afi ipv6.unicast from AS39791 accept ANY
mp-export:      afi ipv6.unicast to AS39791 announce AS-WEB4U
remarks:        ---[ M-NET ]---
mp-import:      afi ipv6.unicast from AS197197 accept ANY
mp-export:      afi ipv6.unicast to AS197197 announce AS-WEB4U
remarks:        
admin-c:        WM3536-RIPE
tech-c:         WM3536-RIPE
status:         ASSIGNED
notify:         ripe@web4u.cz
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         MNT-WEB4U
created:        2006-04-25T12:37:01Z
last-modified:  2023-08-07T13:12:17Z
source:         RIPE
abuse-email:    abuse@web4u.cz
abuse-c:        AR68991-RIPE
abuse-org:      ORG-WS296-RIPE

organisation:   ORG-WS296-RIPE
org-name:       Web4U s.r.o.
country:        CZ
org-type:       LIR
address:        Mahlerovy sady 1
address:        13000
address:        Praha 3
address:        CZECH REPUBLIC
phone:          +420270001456
e-mail:         ripe@web4u.cz
admin-c:        WM3536-RIPE
tech-c:         WM3536-RIPE
abuse-c:        AR68991-RIPE
mnt-ref:        MNT-WEB4U
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         MNT-WEB4U
created:        2022-09-20T07:29:12Z
last-modified:  2022-09-20T07:29:13Z
source:         RIPE

role:           WEB4U network operations
address:        CZECH REPUBLIC
address:        Praha 3
address:        13000
address:        Mahlerovy sady 1
phone:          +420270001456
e-mail:         praha@web4u.cz
admin-c:        FP15631-RIPE
tech-c:         FP15631-RIPE
abuse-mailbox:  abuse@web4u.cz
nic-hdl:        WM3536-RIPE
mnt-by:         MNT-WEB4U
created:        2022-09-20T07:29:12Z
last-modified:  2022-10-17T12:21:14Z
source:         RIPE

role:           Web4U abuse
address:        CZECH REPUBLIC
address:        Praha 3
address:        13000
address:        Mahlerovy sady 1
e-mail:         praha@web4u.cz
abuse-mailbox:  abuse@web4u.cz
nic-hdl:        AR68991-RIPE
mnt-by:         MNT-WEB4U
created:        2022-09-20T07:29:12Z
last-modified:  2022-10-17T12:21:56Z
source:         RIPE

role:           Web4U abuse
address:        CZECH REPUBLIC
address:        Praha 3
address:        13000
address:        Mahlerovy sady 1
e-mail:         praha@web4u.cz
abuse-mailbox:  abuse@web4u.cz
nic-hdl:        AR68991-RIPE
mnt-by:         MNT-WEB4U
created:        2022-09-20T07:29:12Z
last-modified:  2022-10-17T12:21:56Z
source:         RIPE

role:           WEB4U network operations
address:        CZECH REPUBLIC
address:        Praha 3
address:        13000
address:        Mahlerovy sady 1
phone:          +420270001456
e-mail:         praha@web4u.cz
admin-c:        FP15631-RIPE
tech-c:         FP15631-RIPE
abuse-mailbox:  abuse@web4u.cz
nic-hdl:        WM3536-RIPE
mnt-by:         MNT-WEB4U
created:        2022-09-20T07:29:12Z
last-modified:  2022-10-17T12:21:14Z
source:         RIPE
Get this data and more with IPinfo's Whois product - effortless access to POCs, ORGs, and Networks, for actionable intelligence.

Hosted Domains

There are 42,191 domain names hosted across 491 IP addresses on this ASN.

IP Address Domain Domains on this IP
81.91.86.14 pregis.cz 20,981
81.91.86.12 institutvk.cz 5,743
81.91.86.13 stribny.eu 3,579
81.91.86.11 praguechess.cz 2,814
81.91.86.10 isis.cz 752
81.91.84.51 skiresort.cz 422
81.91.84.215 stehovani-rut.cz 398
81.91.92.221 mycalibra.be 347
81.91.84.107 veselynovinky.cz 324
81.91.82.42 kralovedvorsko.cz 236
81.91.84.138 atlanta-cz.com 236
81.91.82.209 mktg.cz 175
81.91.84.210 nscm.cz 174
81.91.85.211 petrakubinkova.cz 167
81.91.92.70 malinche.cz 156
81.91.84.73 pujcovna-detskych-kostymu.cz 154
81.91.85.141 nerezblucina.cz 139
81.91.84.131 info-humenne.sk 133
81.91.85.135 barta-dily.cz 131
81.91.85.90 trailpoint.cz 123
81.91.85.97 csop5.cz 122
81.91.86.15 olbron.com 121
81.91.91.14 anavy.cz 114
185.14.224.141 lentiamo.sk 111
81.91.91.54 altx.cz 98
81.91.84.133 igocz.cz 96
81.91.83.111 gregi.cz 87
81.91.91.22 mikov.cz 84
81.91.84.168 spiralista.org 83
81.91.91.91 24sejf.cz 72
81.91.85.35 safusova.cz 69
81.91.84.24 drestav.cz 69
81.91.84.176 golfovy-travnik.cz 66
81.91.92.215 kafickotek.cz 65
81.91.84.104 peroutka.cz 64
81.91.85.113 1-wine.eu 59
81.91.86.19 sprava-domen.sk 58
81.91.92.157 okna-rychle.cz 57
81.91.85.19 funparkzirafa.cz 56
81.91.85.169 firstbike.sk 53
81.91.92.152 design-photo.cz 52
81.91.84.189 mujipod.cz 52
81.91.92.203 zonazabavy.cz 49
81.91.85.34 klempiri.cz 49
81.91.92.32 hyha.cz 48
81.91.85.150 bookin.cz 48
81.91.84.23 albertik.cz 47
81.91.92.52 lahome.cz 46
81.91.84.211 borgoshop.cz 46
81.91.82.114 mysteryservices.cz 46

Discover all domains hosted on a single IP address with IPinfo's powerful Hosted Domains (Reverse IP) solution.
Useful for Cybersecurity

Peers

There are 20 peers for this ASN.

Peers Name
AS14840 BR.Digital Provider
AS1764 Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbH
AS199803 ComSource s.r.o.
AS212483 LEVEL EIGHTY-SIX COMMUNICATIONS LTD
AS24482 SG.GS
AS25248 RADIOKOMUNIKACE a.s.
AS2852 CESNET z.s.p.o.
AS29049 Delta Telecom Ltd
AS29504 Freenet Liberec, z.s.
AS36236 NetActuate, Inc
AS39120 Convergenze S.p.A.
AS40994 Hohl IT e.U.
AS41047 Bart Vrancken trading as MLaB
AS4455 IX Reach Ltd
AS49544 i3D.net B.V
AS51185 Onecom Global Communications LTD
AS57463 NetIX Communications JSC
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 s.r.o.
AS25248 RADIOKOMUNIKACE a.s.
AS6939 Hurricane Electric LLC
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.

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.

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