81.91.80.0/21
AS39790 · Web4U s.r.o.
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WHOIS Details
inetnum: 81.91.80.0 - 81.91.95.255 netname: CZ-WEB4USRO-20060425 country: CZ org: ORG-WS296-RIPE admin-c: WM3536-RIPE tech-c: WM3536-RIPE status: ALLOCATED PA mnt-by: MNT-WEB4U mnt-by: RIPE-NCC-HM-MNT created: 2022-09-28T14:32:39Z last-modified: 2022-09-28T14:32:39Z 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 abuse-email: abuse@web4u.cz abuse-c: AR68991-RIPE abuse-org: undefined 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 route: 81.91.80.0/21 origin: AS39790 mnt-by: MNT-WEB4U created: 2024-05-16T12:05:41Z last-modified: 2024-05-16T12:05:41Z source: RIPE
Hosted domains
There are 43,382 domain names hosted across 274 IP addresses on this ASN. Checkout our API to access full domain hosting information.
| IP Address | Domain | Domains on this IP |
|---|---|---|
| 81.91.86.12 | institutvk.cz | 5402 |
| 81.91.86.13 | servis-mareno.cz | 3294 |
| 81.91.86.10 | isis.cz | 692 |
| 81.91.84.215 | doswietlaczepiwniczne.pl | 452 |
| 81.91.84.51 | skiresort.cz | 354 |
| 81.91.82.42 | myvalovi.cz | 277 |
| 81.91.84.138 | strechyvosalik.cz | 227 |
| 81.91.82.209 | do3d.cz | 187 |
| 81.91.84.210 | staziste.cz | 178 |
| 81.91.85.211 | fejas.cz | 170 |
| 81.91.84.131 | info-most.cz | 130 |
| 81.91.85.141 | glenowell.cz | 125 |
| 81.91.85.97 | csop5.cz | 124 |
| 81.91.84.133 | bike-sport-shop.sk | 113 |
| 81.91.83.112 | givet.cz | 113 |
| 81.91.86.15 | cajoteka.cz | 113 |
| 81.91.84.24 | drestav.cz | 72 |
| 81.91.86.19 | spravadomen.co.uk | 71 |
| 81.91.85.35 | naseveru.net | 67 |
| 81.91.84.176 | beijerczech.cz | 65 |
Hosted domains API
Pingable IPs
602 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.
| IP Address | ASN | Details |
|---|---|---|
| 81.91.86.26 |
0.42ms from Prague,
CZ
|
|
| 81.91.84.116 |
0.41ms from Prague,
CZ
|
|
| 81.91.83.169 |
0.38ms from Prague,
CZ
|
|
| 81.91.85.97 |
0.39ms from Prague,
CZ
|
|
| 81.91.87.62 |
0.38ms from Prague,
CZ
|
|
| 81.91.82.19 |
0.38ms from Prague,
CZ
|
|
| 81.91.80.118 |
0.37ms from Prague,
CZ
|
|
| 81.91.81.16 |
0.43ms from Prague,
CZ
|
Other Pingable IPs
Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.
| IP Address | ASN | Details |
|---|---|---|
| 88.204.212.149 |
0.74ms from Almaty,
KZ
|
|
| 115.188.188.37 |
5.04ms from Auckland,
NZ
|
|
| 101.188.192.37 |
2.11ms from Brisbane,
AU
|
|
| 124.230.2.197 |
5.15ms from Chenzhou,
CN
|
|
| 103.17.239.229 |
1.11ms from Ho Chi Minh City,
VN
|
|
| 154.62.133.229 |
0.49ms from London,
GB
|
|
| 105.168.238.117 |
0.81ms from Luanda,
AO
|
|
| 173.246.33.101 |
2.54ms from Miami,
US
|
|
| 34.26.76.37 |
0.15ms from Moncks Corner,
US
|
|
| 200.40.55.53 |
1.70ms from Montevideo,
UY
|
|
| 60.72.184.117 |
4.30ms from Osaka,
JP
|
|
| 54.83.115.181 |
0.18ms from Reston,
US
|
|
| 187.70.124.117 |
17.39ms from Sao Paulo,
BR
|
|
| 24.113.156.85 |
5.22ms from Seattle,
US
|
|
| 195.116.232.85 |
4.96ms from Warsaw,
PL
|
|
| 154.247.234.213 |
15.36ms from Algiers,
DZ
|
|
| 145.23.254.101 |
1.20ms from Amsterdam,
NL
|
|
| 197.167.205.229 |
9.16ms from Cairo,
EG
|
|
| 111.23.236.53 |
0.34ms from Changsha,
CN
|
|
| 14.117.195.117 |
3.95ms from Guangzhou,
CN
|
|
| 2.241.0.165 |
1.04ms from Hamburg,
DE
|
|
| 156.238.99.165 |
0.13ms from Indore,
IN
|
|
| 112.112.2.37 |
0.40ms from Kunming,
CN
|
|
| 81.171.186.5 |
11.01ms from London,
GB
|
|
| 72.109.100.197 |
7.05ms from Los Angeles,
US
|
Traceroute
Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.
IPinfo ProbeNet
in Los Angeles, US
What are IP address ranges?
IP address ranges, or netblocks, are groups of related IP addresses. They are usually represented as a base IP address, followed by a slash, and then a netmask which represents how many IP addresses are contained within the netblock. This format is known as CIDR. You'll also sometimes see netblocks given as a start ip address, and an end ip address, or an ip address range.
Traffic works its way around the internet based on the routing table, which contains a list of networks and their associated netblocks.
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