81.19.12.0/23

AS34049 · wosa.cz

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Summary

Country	Czechia
Domain	hdata.cz
ASN	AS34049
Parent Range	81.19.0.0/20
Registry	RIPE
ID	H-DATA-NET

WHOIS Details

inetnum:        81.19.12.0 - 81.19.12.255
netname:        H-DATA-NET
descr:          H-DATA, spol. s r.o
country:        CZ
admin-c:        LP2006-RIPE
tech-c:         LP2006-RIPE
status:         ASSIGNED PA
mnt-by:         FASTER-MNT
created:        2004-10-11T12:17:11Z
last-modified:  2004-10-11T12:17:11Z
source:         RIPE
abuse-email:    [email protected]
abuse-c:        FA555-RIPE
abuse-org:      ORG-FCss1-RIPE

person:         Ladislav Prokes
address:        H-DATA, spol. s r.o
address:        Vaclavska 4
address:        Brno
address:        625 00
address:        The Czech Republic
phone:          +420 543 244 920
fax-no:         +420 543 330 425
e-mail:         [email protected]
nic-hdl:        LP2006-RIPE
notify:         [email protected]
created:        1970-01-01T00:00:00Z
last-modified:  2020-06-04T07:47:26Z
source:         RIPE
mnt-by:         FASTER-MNT

route:          81.19.12.0/23
descr:          H-data, spol. s .r.o.
origin:         AS34049
mnt-by:         FASTER-MNT
created:        2004-10-11T12:35:56Z
last-modified:  2004-10-11T12:35:56Z
source:         RIPE

Overlapping Ranges

BGP prefixes that contain 81.19.12.0/23

Range	ASN	Company	Num of IPs
81.19.0.0/20	AS24641	FASTER CZ spol. s r.o.	4,096

Nearby Ranges

BGP prefixes that overlap with 81.19.0.0/16

Range	ASN	Company	Num of IPs
81.19.64.0/19	AS24638	Rambler Internet Holding LLC	8,192
81.19.176.0/20	AS34282	Team Blue Carrier Limited	4,096
81.19.112.0/20	AS39242	Seclan Oy	4,096
81.19.96.0/20	AS2914	NTT United Kingdom Ltd	4,096
81.19.48.0/20	AS29668	vXtream Ltd	4,096
81.19.16.0/20	AS35283	NETWORTH TELECOM SAS	4,096
81.19.0.0/20	AS24641	FASTER CZ spol. s r.o.	4,096
81.19.144.0/20	AS8560	World4You Internet Services GmbH	4,096
81.19.32.0/20	AS25512	CD-Telematika a.s.	4,096
81.19.208.0/20	AS25369	Hydra Communications Ltd	4,096
81.19.48.0/22	AS29668	vXtream Ltd	1,024
81.19.208.0/23	AS25369	Hydra Communications Ltd	512
81.19.139.0/24	AS215540	GLOBAL CONNECTIVITY SOLUTIONS LLP	256
81.19.138.0/24	AS212128	Information & Computing Center, Ltd.	256
81.19.195.0/24	AS10515	VeriSign Inc.	256
81.19.137.0/24	AS210644	Aeza International LTD	256
81.19.132.0/24	AS198369	Consumer Internet Cooperative Melenki.Net	256
81.19.195.0/24	AS10515	VeriSign Inc.	256
81.19.195.0/24	AS10515	VeriSign Inc.	256
81.19.166.0/24	AS24830	CIRCUITOS ALJARAFE, S.L.	256
81.19.165.0/24	AS24830	CIRCUITOS ALJARAFE, S.L.	256
81.19.134.0/24	AS142019	ISP IPOCEAN LLC	256
81.19.167.0/24	AS24830	CIRCUITOS ALJARAFE, S.L.	256
81.19.175.0/24	AS24830	CIRCUITOS ALJARAFE, S.L.	256
81.19.162.0/24	AS24830	INTEREC	256
81.19.160.0/24	AS24830	CIRCUITOS ALJARAFE	256
81.19.216.0/24	AS25369	Hydra Communications Ltd	256
81.19.195.0/24	AS10515	VeriSign Inc.	256
81.19.195.0/24	AS10515	VeriSign Inc.	256
81.19.195.0/24	AS36630	VeriSign Inc.	256
81.19.133.0/24	AS34665	ISP IPOCEAN LLC	256
81.19.195.0/24	AS10515	VeriSign Inc.	256
81.19.14.0/24	AS34049	H-data, spol. s r.o.	256
81.19.141.0/24	AS215540	GLOBAL CONNECTIVITY SOLUTIONS LLP	256
81.19.54.0/24	AS29668	vXtream Ltd	256
81.19.140.0/24	AS215540	GLOBAL CONNECTIVITY SOLUTIONS LLP	256
81.19.195.0/24	AS10515	VeriSign Inc.	256
81.19.195.0/24	AS36630	VeriSign Inc.	256
81.19.195.0/24	AS36630	VeriSign Inc.	256
81.19.195.0/24	AS36630	VeriSign Inc.	256
81.19.195.0/24	AS36630	VeriSign Inc.	256
81.19.195.0/24	AS36630	VeriSign Inc.	256
81.19.195.0/24	AS36630	VeriSign Inc.	256
81.19.195.0/24	AS36630	VeriSign Inc.	256
81.19.195.0/24	AS36630	VeriSign Inc.	256
81.19.195.0/24	AS36630	VeriSign Inc.	256
81.19.195.0/24	AS10515	VeriSign Inc.	256
81.19.195.0/24	AS396540	VeriSign Inc.	256
81.19.195.0/24	AS396540	VeriSign Inc.	256
81.19.195.0/24	AS10515	VeriSign Inc.	256

Hosted domains

There are 10 domain names hosted across 5 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
81.19.12.10	h-data.cz	5
81.19.12.11	vsudedoma.cz	2
81.19.12.198	eldac.cz	1
81.19.13.10	ugartova.cz	1
81.19.13.154	daniel-franta.cz	1

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
81.19.13.29	AS34049 wosa.cz	`0.17ms` from Brno, CZ
81.19.12.117	AS34049 wosa.cz	`0.38ms` from Brno, 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
180.78.242.135	AS17429 BEIJING GEHUA CATV NETWORK CO.LTD	`7.40ms` from Beijing, CN
182.145.104.119	AS4134 CHINANET-BACKBONE	`8.38ms` from Chengdu, CN
73.252.120.215	AS7922 Comcast Cable Communications, LLC	`12.49ms` from Dallas, US
125.99.10.151	AS17488 Hathway IP Over Cable Internet	`1.90ms` from Delhi, IN
78.82.23.87	AS8434 Telenor Sverige AB	`0.51ms` from Goeteborg, SE
76.83.175.71	AS20001 Charter Communications Inc	`6.88ms` from Honolulu, US
112.232.39.247	AS4837 CHINA UNICOM China169 Backbone	`5.98ms` from Qingdao, CN
44.212.240.199	AS14618 Amazon.com, Inc.	`0.22ms` from Reston, US
98.51.208.23	AS7922 Comcast Cable Communications, LLC	`4.61ms` from San Jose, US
187.109.38.231	AS262706 Ultranet Telecomunicações Ltda	`1.42ms` from Sao Paulo, BR
47.107.44.7	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`0.12ms` from Shenzhen, CN
212.63.211.199	AS30880 SpaceDump IT AB	`0.48ms` from Stockholm, SE
189.18.36.87	AS27699 TELEFÔNICA BRASIL S.A	`2.39ms` from São Paulo, BR
221.205.51.103	AS4837 CHINA UNICOM China169 Backbone	`2.99ms` from Taiyuan, CN
31.162.86.231	AS12389 PJSC Rostelecom	`0.85ms` from Yekaterinburg, RU
175.35.141.119	AS4804 Microplex PTY LTD	`2.23ms` from Adelaide, AU
111.161.158.55	AS4837 CHINA UNICOM China169 Backbone	`6.14ms` from Beijing, CN
204.111.63.87	AS4922 Shenandoah Cable Television LLC	`6.60ms` from Berkeley Springs, US
197.46.103.199	AS8452 TE-AS	`4.72ms` from Cairo, EG
174.99.113.199	AS11426 Charter Communications Inc	`9.94ms` from Charlotte, US
196.235.107.87	AS37492 Orange Tunisie	`18.79ms` from Marseille, FR
75.201.34.135	AS6167 Verizon Business	`8.03ms` from Miami, US
71.59.93.7	AS7922 Comcast Cable Communications, LLC	`9.69ms` from New York City, US
112.243.231.199	AS4837 CHINA UNICOM China169 Backbone	`3.82ms` from Qingdao, CN
52.205.166.167	AS14618 Amazon.com, Inc.	`0.22ms` from Reston, US

Traceroute

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

traceroute -a -n -q1 -f3 81.19.13.29

traceroute to 81.19.13.29 (81.19.13.29): 64 hops max, 52 byte packets

3 [AS24971] 83.167.254.192 276.557 ms

4 [AS24971] 83.167.254.132 0.231 ms

5 [AS34049] 81.19.13.29 0.272 ms

Measurement taken from

IPinfo ProbeNet in Brno, CZ

On January 30th 2026

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.

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