IP range details

81.31.32.0/20

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

Summary

Country	Czechia
Domain	master.cz
ASN	AS24971
Registry	ripe
Hosted IPs	4,096
ID	CZ-MASTER-20020528

WHOIS Details

inetnum:        81.31.32.0 - 81.31.47.255
org:            ORG-MIs2-RIPE
netname:        CZ-MASTER-20020528
country:        CZ
admin-c:        MZ2189-RIPE
tech-c:         PV352-RIPE
status:         ALLOCATED PA
notify:         zidek@master.cz
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         MASTER-MNT
mnt-routes:     MASTER-MNT
created:        2002-05-28T08:50:18Z
last-modified:  2017-01-17T13:19:39Z
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

route:          81.31.32.0/20
descr:          MASTER-NET-1
origin:         AS24971
mnt-by:         MASTER-MNT
created:        2002-06-17T11:04:51Z
last-modified:  2002-06-17T11:04:51Z
source:         RIPE

Hosted domains

There are 16,673 domain names hosted across 207 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
81.31.37.22	lacnyeshop.sk	10449
81.31.35.130	czech-akawi.cz	2041
81.31.33.166	slovakshops.sk	277
81.31.35.148	sinkor.cz	263
81.31.47.204	nemocnice-beroun.cz	245
81.31.46.144	hotelroyalpalace.cz	238
81.31.35.135	kamangir.cz	230
81.31.46.138	skauting.cz	221
81.31.47.101	abc3d.cz	138
81.31.35.131	maresfinance.cz	136
81.31.35.50	probionline.com	134
81.31.44.120	radostvitazi.sk	122
81.31.35.141	ecofilters.cz	109
81.31.35.144	koktejlynahubnuti.cz	108
81.31.35.155	vytvoreniloga.cz	95
81.31.34.55	hromadna-zaloba.cz	84
81.31.36.125	detenice.cz	80
81.31.46.146	instalaterske-potreby-koupelny.cz	78
81.31.45.90	palacsavarin.eu	73
81.31.42.6	genea.cz	71

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

IP address subranges within this IP range

Get all this data and more in JSON format using our ASN API Read More

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.

Get Started for Free Contact Sales