Enter an IPv4, IPv6, or ASN to retrieve geolocation, network, company, privacy and abuse details. You can also query it via the API or download the database.
🇨🇿 Czech Republic
The ASN (Autonomous System Number) is a unique number assigned to an autonomous system, used to identify the network. ASN
AS39790
The RIR (Regional Internet Registry) is the organization responsible for managing ASN allocation in a specific region. RIR
RIPE
The type of ASN. Can be business, isp, hosting, government, or education. Type
business
Website
web4u.czRelated ASNs have the same name or website. Related
-
IPv4 CIDRs
5
IPv4 addresses
9728
IPv6 CIDRs
3
IPv6 addresses
1
AS199803 | |
AS25248 | |
AS6939 | |
81.91.80.0/20 |
81.91.80.0/21 |
81.91.88.0/21 |
185.14.224.0/22 |
185.14.224.0/23 |
2001:1568::/32 |
2001:1568::/33 |
2001:1568:8000::/33 |
City
Prague
Country
🇨🇿 Czech Republic
Coordinates
50.08804, 14.42076
Timezone
Europe/Prague
We transparently share the different sources used to determine a likely location for this IP address. Source
whois
curl iplib.re/AS39790
{
"network": {
"rir": "RIPE",
"asn": 39790,
"name": "Web4U s.r.o.",
"type": "business",
"website": "web4u.cz"
},
"connectivity": {
"upstreams": [
199803,
25248,
6939
],
"peers": [
24482,
33891,
1764,
29504,
8218
]
},
"location": {
"latitude": 50.08804,
"longitude": 14.42076,
"country": "CZ",
"city": "Prague",
"source": "whois",
"timezone": "Europe/Prague"
},
"abuse": {
"email": "abuse@web4u.cz",
"phone": "+420270001456"
},
"ipv4": {
"ranges": [
"81.91.80.0/20",
"81.91.80.0/21",
"81.91.88.0/21",
"185.14.224.0/22",
"185.14.224.0/23"
],
"cidrs": 5,
"ips": 9728
},
"ipv6": {
"ranges": [
"2001:1568::/32",
"2001:1568::/33",
"2001:1568:8000::/33"
],
"cidrs": 3,
"ips": 1
}
}