IP range details

AS24971  ·  Master Internet s.r.o.

Need more data or want to access it via API or data downloads? Sign up to get free access

Sign up for free ›


Country Czechia
Domain master.cz
ASN AS24971
Registry ripe
Hosted IPs 8,192
ID CZ-MASTER-20070518

WHOIS Details

inetnum: -
org:            ORG-MIs2-RIPE
netname:        CZ-MASTER-20070518
country:        CZ
admin-c:        MZ2189-RIPE
tech-c:         PV352-RIPE
status:         ALLOCATED PA
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         MASTER-MNT
mnt-routes:     MASTER-MNT
notify:         zidek@master.cz
created:        2007-05-18T15:01:17Z
last-modified:  2017-01-17T13:19:38Z
source:         RIPE
abuse-email:    abuse@master.cz
abuse-c:        MAIc-RIPE
abuse-org:      ORG-MIs2-RIPE

organisation:   ORG-MIs2-RIPE
org-name:       Master Internet s.r.o.
country:        CZ
org-type:       LIR
address:        Jiraskova 21
address:        602 00
address:        Brno
address:        CZECH REPUBLIC
phone:          +420 777919700
e-mail:         lir-req@master.cz
mnt-ref:        MASTER-MNT
mnt-ref:        RIPE-NCC-HM-MNT
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         MASTER-MNT
admin-c:        PV352-RIPE
admin-c:        JIPA-RIPE
admin-c:        MZI-RIPE
admin-c:        PZAK-RIPE
abuse-c:        MAIc-RIPE
created:        2004-04-17T11:04:37Z
last-modified:  2020-12-16T12:56:39Z
source:         RIPE

person:         Martin Zidek
address:        Master Internet s.r.o.
address:        Cejl 20
address:        602 00 Brno
address:        Czech Republic
phone:          +420 777919700
e-mail:         zidek@master.cz
nic-hdl:        MZ2189-RIPE
mnt-by:         MASTER-MNT
created:        2002-05-24T21:26:48Z
last-modified:  2017-10-30T21:45:28Z
source:         RIPE

person:         Petr Vosmera
address:        Master Internet s.r.o.
address:        Jiraskova 21
address:        602 00 Brno
address:        Czech Republic
phone:          +420 777 919200
fax-no:         +420 608 091405
nic-hdl:        PV352-RIPE
e-mail:         vosmera@master.cz
mnt-by:         MASTER-MNT
created:        2002-05-24T21:49:28Z
last-modified:  2017-10-30T21:45:40Z
source:         RIPE

descr:          MASTER-NET-4
origin:         AS24971
mnt-by:         MASTER-MNT
created:        2007-05-18T16:21:01Z
last-modified:  2007-05-18T16:21:01Z
source:         RIPE

Hosted domains

There are 14,518 domain names hosted across 750 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP skrobak-noze.cz 1969 lippp.cz 1332 sexkontakt.com 1129 banan.cz 562 powerwat-plus.net 472 outdoorpornos.eu 340 maramasek.cz 264 bowlingbrno.cz 233 zahrada-mzik.cz 231 poradenstvivkostce.cz 209 operakdodavky.cz 208 lovas-vrata.cz 196 flixpatrol.com 193 pks-hydraulika.cz 185 myto-pod-dumbierom.sk 175 online-hodinky.cz 173 susarnakratonohy.cz 167 coleman.sk 157 jancaelektro.com 152 pilyzamberk.cz 148

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

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.

An API built with users in mind: reliable, accurate, and easy-to-use

Discover why industry-leading companies around the globe love our data. IPinfo's accurate insights fuel use cases from cybersecurity, data enrichment, web personalization, and much more.

IPinfo for all your IP geolocation needs

Our IP tools

Explore all tools
What is my IP

What is my IP

Test our data accuracy by viewing insights from your IP address.

See your IP address
Map IPs

Map IPs

Paste up to 500,000 IPs to see where they're located on a map.

Try Map IPs
Summarize IPs

Summarize IPs

Use our data visualization tool to create a visual overview of multiple IPs.

Try Summarize IPs