81.0.216.0/24

AS21430 · WIA spol. s.r.o.

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Summary

Country	Czechia
Domain	wia.cz
ASN	AS21430
Registry	RIPE
ID	CZ-WIA-20011214

WHOIS Details

inetnum:        81.0.215.0 - 81.0.216.255
netname:        CZ-WIA-20011214
country:        CZ
org:            ORG-Wss1-RIPE
admin-c:        PU100-RIPE
tech-c:         PU100-RIPE
status:         ALLOCATED PA
mnt-by:         WIA-AS-MNT
mnt-by:         RIPE-NCC-HM-MNT
created:        2022-07-28T08:08:27Z
last-modified:  2022-07-28T08:08:27Z
source:         RIPE
abuse-email:    abuse@wia.cz
abuse-c:        WAC9-RIPE
abuse-org:      ORG-Wss1-RIPE

organisation:   ORG-Wss1-RIPE
org-name:       WIA spol. s.r.o.
country:        CZ
org-type:       LIR
address:        Vojtesska 17
address:        110 00
address:        Praha 1
address:        CZECH REPUBLIC
phone:          +420 225 372 055
phone:          +420 246 035411
fax-no:         +420 246 035410
e-mail:         noc@wia.cz
admin-c:        FM1337-RIPE
admin-c:        PU100-RIPE
mnt-by:         WIA-AS-MNT
mnt-ref:        WIA-AS-MNT
mnt-ref:        RIPE-NCC-HM-MNT
mnt-by:         RIPE-NCC-HM-MNT
abuse-c:        WAC9-RIPE
created:        2004-04-17T11:04:59Z
last-modified:  2020-12-16T12:19:39Z
source:         RIPE

person:         Pavel Uhliar
address:        Ceska 9
address:        351 01, Frant. Lazne
address:        Czech Republic
phone:          +420 246035411
fax-no:         +420 246035410
e-mail:         uhliar@wia.cz
nic-hdl:        PU100-RIPE
notify:         uhliar@wia.cz
created:        2001-10-24T09:03:52Z
last-modified:  2015-07-28T18:03:50Z
source:         RIPE
mnt-by:         WIA-AS-MNT

Hosted domains

There are 10 domain names hosted across 1 IP address on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
81.0.216.105	lokalni-anestetika.cz	10

Hosted domains API

Our Hosted Domains API, or Reverse IP API returns a full list of domains that are hosted on a single IP address.

Useful for Cybersecurity

Read more

Pingable IPs

75 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
81.0.216.141	AS21430 WIA spol. s.r.o.	`0.69ms` 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
172.175.38.136	AS8075 Microsoft Corporation	`0.16ms` from Boydton, US
181.218.144.8	AS28573 Claro NXT Telecomunicacoes Ltda	`3.92ms` from Chapeco, BR
91.47.167.216	AS3320 Deutsche Telekom AG	`2.70ms` from Hamburg, DE
116.112.245.8	AS4837 CHINA UNICOM China169 Backbone	`10.94ms` from Hohhot, CN
197.249.116.104	AS25139 TVCABO - Comunicacoes Multimedia, Lda	`0.98ms` from Maputo, MZ
54.70.88.104	AS16509 Amazon.com, Inc.	`4.58ms` from Portland, US
162.198.96.120	AS7018 AT&T Enterprises, LLC	`3.85ms` from San Antonio, US
43.200.87.56	AS16509 Amazon.com, Inc.	`0.36ms` from Seoul, KR
124.143.13.56	AS9824 JCOM Co., Ltd.	`6.67ms` from Tokyo, JP
173.241.106.136	AS11727 Bruce Telecom	`5.18ms` from Toronto, CA
212.52.47.120	AS21412 UAB "Cgates"	`3.21ms` from Vilnius, LT
37.130.12.72	AS50411 ITV Media Sp. z o.o.	`1.91ms` from Warsaw, PL
115.188.153.40	AS4771 Spark New Zealand Trading Ltd.	`1.04ms` from Auckland, NZ
46.97.198.200	AS12302 Vodafone Romania S.A.	`14.55ms` from Bucharest, RO
102.189.185.120	AS24835 Vodafone Data	`8.40ms` from Cairo, EG
110.40.57.24	AS38283 CHINANET SiChuan Telecom Internet Data Center	`2.00ms` from Chengdu, CN
76.243.180.72	AS7018 AT&T Enterprises, LLC	`7.00ms` from Dallas, US
54.93.216.8	AS16509 Amazon.com, Inc.	`0.18ms` from Frankfurt am Main, DE
168.4.177.72	AS8 Rice University	`4.83ms` from Houston, US
113.235.52.136	AS4837 CHINA UNICOM China169 Backbone	`9.82ms` from Liaoyang, CN
78.147.90.136	AS13285 TalkTalk Communications Limited	`2.54ms` from London, GB
81.149.40.216	AS2856 British Telecommunications PLC	`2.01ms` from London, GB
176.150.36.184	AS5410 Bouygues Telecom SA	`7.80ms` from Marseille, FR
68.174.101.8	AS12271 Charter Communications Inc	`4.60ms` from New York City, US
62.228.157.24	AS6866 Cyprus Telecommunications Authority	`2.31ms` from Nicosia, CY

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.

traceroute -a -n -q1 -f2 81.0.216.141

traceroute to 81.0.216.141 (81.0.216.141): 64 hops max, 52 byte packets

2 [AS29134] 217.31.48.15 0.398 ms

3 [] 91.210.16.28 0.577 ms

4 [AS21430] 80.250.27.107 0.549 ms

5 [AS21430] 31.7.247.145 1.477 ms

6 [AS21430] 81.0.216.141 1.048 ms

Measurement taken from

IPinfo ProbeNet in Prague, CZ

On August 28th 2025

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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