About 81.91.80.1
- Location
- 🇨🇿 Jindřichův Hradec, Jihočeský kraj, Czechia
- ISP · ASN
- WEB4U AS39790
- Type
- Unclassified network
- Hostname
- gw-80-1.r4.web4u.cz
- Time zone
- Europe/Prague 21:21
- Coordinates
- 49.1503, 15.0046
- Prefix
- 81.91.80.0/20
- IP version
- IPv4
- Region
- Jihočeský kraj
Approximate: city-level geolocation, radius about 25 km.
- ASN
- AS39790
- Network name
- WEB4U
- Prefix
- 81.91.80.0/20
- Network type
- Unclassified
Native IP
Native IP: RIPE allocated this block to Czechia (CZ) and it is geolocated in Czechia (CZ) — the same country. The address is used where it was allocated, which is what a local residential or business line looks like.
Registry country: 🇨🇿 CzechiaGeolocation: 🇨🇿 Czechia
BGP routing
- Origin ASN
- AS39790
- Announced prefix
- 81.91.80.0/21
- RPKI
- Valid
- Visibility (RIS peers)
- 100%
- First seen
- 2023-03-23
- Abuse contact
- abuse@web4u.cz
Data: RIPE NCC RIPEstat
Allocation (RDAP)
- Registry
- whois.ripe.net
- Name
- WEB4U-NET-CUST-80-26 81.91.80.0 - 81.91.80.63
- Range
- 81.91.80.0 – 81.91.80.63 81.91.80.0/26
- Country
- 🇨🇿 Czechia
- Allocation type
- ASSIGNED PA
- Registration
- 2011-03-21
- Last changed
- 2022-10-17
- registrant
- MNT-WEB4U
- registrant
- Web4U s.r.o.
- administrative, technical
- WEB4U network operations abuse@web4u.cz
- abuse
- Web4U abuse abuse@web4u.cz
WEB4U - customers
Purity score 100/100
0–100, higher is cleaner. Built from hosting, Tor, blocklists, ASN type, abuse contact, prefix visibility and rDNS consistency.
- Datacenter / hosting rangeNo
- Tor exit nodeNo
- Known VPN / proxy providerNo
- Spamhaus DROPNo
- Blacklists0 / 8
DNS blocklists 0 / 8
| List | Status | Reason |
|---|---|---|
| Spamhaus ZEN zen.spamhaus.org | Not listed | |
| SpamCop bl.spamcop.net | Not listed | |
| Barracuda b.barracudacentral.org | Not listed | |
| SORBS dnsbl.sorbs.net | Not listed | |
| UCEPROTECT L1 dnsbl-1.uceprotect.net | Not listed | |
| PSBL psbl.surriel.com | Not listed | |
| s5h.net all.s5h.net | Not listed | |
| DroneBL dnsbl.dronebl.org | Not listed |
- PTR recordgw-80-1.r4.web4u.czThe PTR record the address owner published for it.
- Forward-confirmedVerify →Forward-confirmed: the hostname resolves back to this address.
- Reverse zone name1.80.91.81.in-addr.arpa
- Decimal
- 1364938753
- Hex
- 0x515B5001
- Binary
- 01010001.01011011.01010000.00000001
- Octal
- 0121.0133.0120.01
- Arpa
- 1.80.91.81.in-addr.arpa
- Mapped
- ::ffff:81.91.80.1
JSON
{
"ip": "81.91.80.1",
"version": 4,
"classification": "unknown",
"flags": [],
"geo": {
"country_code": "CZ",
"country": "Czechia",
"region": "Jihočeský kraj",
"city": "Jindřichův Hradec",
"lat": 49.1503,
"lon": 15.0046,
"timezone": "Europe/Prague"
},
"asn": {
"asn": 39790,
"name": "WEB4U",
"prefix": "81.91.80.0/20"
},
"rdns": "gw-80-1.r4.web4u.cz"
}This page is generated from public network data and refreshed as the datasets update.
Neighbouring addresses
Adjacent addresses in the same range.
Nearby ranges
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