ASN Lookup Tool

Web4U s.r.o. web4u.cz CZ CZ 8 Routes

AS Data

AS39790

AS39790Web4U s.r.o.

AS Number 39790
AS Name WEB4U
Organization Web4U s.r.o.(org-ws296-ripe)
Country CZ
Website web4u.cz
Number of IPv4 Routes 5
Number of IPv6 Routes 3
ASN type BUSINESS
Allocation Status ASSIGNED
Registry RIPE
Date Allocated 2006-04-25

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Use ASN data for AS39790 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route # IPs
81.91.80.0/21 2048
81.91.88.0/21 2048
185.14.224.0/23 512
2001:1568::/32 ~79×10²⁷
2001:1568::/33 ~40×10²⁷
2001:1568:8000::/33 ~40×10²⁷
185.14.224.0/22 1024
81.91.80.0/20 4096

Raw Whois Response

% This is the RIPE Database query service.
% The objects are in RPSL format.
%
% The RIPE Database is subject to Terms and Conditions.
% See https://docs.db.ripe.net/terms-conditions.html

% Note: this output has been filtered.
%       To receive output for a database update, use the "-B" flag.

% Information related to 'AS39601 - AS39935'

as-block:       AS39601 - AS39935
descr:          RIPE NCC ASN block
remarks:        These AS Numbers are assigned to network operators in the RIPE NCC service region.
mnt-by:         RIPE-NCC-HM-MNT
created:        2023-08-29T07:47:54Z
last-modified:  2023-08-29T07:47:54Z
source:         RIPE

% Information related to 'AS39790'

% Abuse contact for 'AS39790' is 'abuse@web4u.cz'

aut-num:        AS39790
as-name:        WEB4U
org:            ORG-WS296-RIPE
remarks:
remarks:        ===================================================================
remarks:        ===[ UPSTREAM CONNECTIVITY ]=======================================
remarks:        ===================================================================
remarks:
remarks:        ---[ Comsource ]---
import:         from AS199803 accept ANY
export:         to AS199803 announce AS-WEB4U
mp-import:      afi ipv6.unicast from AS199803 accept ANY
mp-export:      afi ipv6.unicast to AS199803 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:        ---[ 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:        ---[ 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
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         MNT-WEB4U
created:        2006-04-25T12:37:01Z
last-modified:  2025-02-14T09:04:22Z
source:         RIPE # Filtered

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
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 # Filtered

role:           WEB4U network operations
address:        CZECH REPUBLIC
address:        Praha 3
address:        13000
address:        Mahlerovy sady 1
phone:          +420270001456
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 # Filtered

% This query was served by the RIPE Database Query Service version 1.121.2 (SHETLAND)

Parsed Whois Response

Peers

AS Number Description Country
AS25248 RADIOKOMUNIKACE a.s. CZ
AS40994 Hohl IT e.U. AT
AS6881 NIX.CZ z.s.p.o. CZ
AS34080 MIRAMO spol. s.r.o. CZ
AS35592 Coolhousing s.r.o. CZ
AS6939 Hurricane Electric LLC US
AS39791 Telco Pro Services, a. s. CZ
AS60602 Inovare-Prim SRL MD
AS47200 NIX.CZ z.s.p.o. CZ
AS198150 SIACOM JSC GE

Upstreams

AS Number Description Country
AS25248 RADIOKOMUNIKACE a.s. CZ
AS39120 Convergenze S.p.A. IT
AS199803 ComSource s.r.o. CZ
AS44306 OMONIA d.o.o. HR
AS1764 Next Layer Telekommunikationsdienstleistungs und Beratungs GmbH AT
AS263444 Open X Tecnologia Ltda BR
AS8218 operated Upstreamnet gmbh FR
AS4455 IX Reach Ltd GB
AS6939 Hurricane Electric LLC US
AS6663 Euroweb Romania S.R.L. RO

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Frequently Asked Questions

ASN AS39790 is an Autonomous System Number used to identify a network for BGP internet routing.
AS39790 is listed under Web4U s.r.o..
Peers are lateral network interconnections, upstreams are transit providers, and downstreams are customer networks receiving connectivity.
Routes and IP ranges are the network prefixes announced by the ASN on the internet and show the address space it originates.
WHOIS provides registration and contact context for ASN ownership, administration, and operational reference.
This page previews large ASN datasets. Use See more to load additional rows, and upgrade your plan to view complete peer, route, upstream, and downstream data.