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AS39790

Web4U s.r.o.

AS39790 is Web4U s.r.o. (web4u.cz). It announces 5,120 IPv4 addresses in 5 prefixes, and 3 IPv6 prefixes.

Czechia· RIPE· allocated 2006-04-25· hosting

5,120
IPv4 addresses announced
5
IPv4 prefixes
3
IPv6 prefixes
100.00%
of its routes RPKI-valid
5,120
of its IPv4 geolocated
1
country

Where its space is

The IPv4 it announces that IP Geolocation places, by country. A /24 counts for the AS announcing most of it.

  1. Czechia5,120 · 100.00%

Registry record

Its ASN Whois record, as the registry publishes it.

handle
WEB4U
name
Web4U s.r.o.
org
ORG-WS296-RIPE
org name
Web4U s.r.o.
org address
Mahlerovy sady 1, 13000, Praha 3, CZECH REPUBLIC
org country
CZ
country
CZ
source
ripe
status
ASSIGNED
created
2006-04-25
updated
2026-07-22
remarks
===[ UPSTREAM CONNECTIVITY ]======================================= / ---[ Comsource ]--- / ---[ CRA ]--- / ===[ NIX.CZ IPV4 PEERINGS ]========================================
maintainer
RIPE-NCC-END-MNT|MNT-WEB4U
abuse name
Web4U abuse
abuse email
abuse@web4u.cz
abuse kind
role

What the databases see

Addresses each address-keyed database holds in the IPv4 it announces, as a share of that space, with its largest providers. Counts overlap.

IPv4 prefixes

Every IPv4 prefix BGP Route saw it announce. A prefix another AS also announces says so.

5 prefixes
PREFIXCOUNTRYRPKIPEERSFIRST SEEN
81.91.80.0/20Czechiavalid172026-10-02
81.91.80.0/21Czechiavalid172026-10-02
81.91.88.0/21Czechiavalid172026-10-02
185.14.224.0/22Czechiavalid172026-10-02
185.14.224.0/23Czechiavalid172026-10-02

IPv6 prefixes

Every IPv6 prefix BGP Route saw it announce.

3 prefixes
PREFIXCOUNTRYRPKIPEERSFIRST SEEN
2001:1568::/32Czechiavalid202026-10-02
2001:1568::/33Czechiavalid202026-10-02
2001:1568:8000::/33Czechiavalid202026-10-02
00 · Evaluate

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01 · License

Then license what you use.

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