81.0.228.0/24

AS15685 · CASABLANCA INT a.s.

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Summary

Country	Czechia
Domain	casablanca.cz
ASN	AS15685
Registry	RIPE
ID	CZ-CASABLANCA-20011214

WHOIS Details

inetnum:        81.0.228.0 - 81.0.228.255
org:            ORG-CI1-RIPE
netname:        CZ-CASABLANCA-20011214
descr:          PROVIDER LIR
country:        CZ
admin-c:        JH1771-RIPE
admin-c:        CASA3-RIPE
tech-c:         JH1771-RIPE
tech-c:         CASA3-RIPE
status:         ALLOCATED PA
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         JH1771-RIPE-MNT
mnt-lower:      CASABLANCA-RIPE-MNT
mnt-lower:      JH1771-RIPE-MNT
mnt-routes:     JH1771-RIPE-MNT
created:        2022-07-28T08:08:26Z
last-modified:  2022-07-28T08:08:26Z
source:         RIPE
abuse-email:    [email protected]
abuse-c:        CASA3-RIPE
abuse-org:      ORG-CI1-RIPE

organisation:   ORG-CI1-RIPE
org-name:       CASABLANCA INT a.s.
country:        CZ
org-type:       LIR
address:        Vinohradska 2396/184 Vinohrady
address:        130 00
address:        Prague 3
address:        CZECH REPUBLIC
phone:          +420270000270
fax-no:         +420270000277
e-mail:         [email protected]
admin-c:        JH1771-RIPE
mnt-ref:        RIPE-NCC-HM-MNT
mnt-ref:        JH1771-RIPE-MNT
notify:         [email protected]
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         JH1771-RIPE-MNT
abuse-c:        CASA3-RIPE
created:        2004-04-17T11:04:09Z
last-modified:  2025-07-30T13:04:16Z
source:         RIPE
abuse-email:    [email protected]
abuse-c:        CASA3-RIPE
abuse-org:      undefined

role:           Casablanca INT RIPE manager
address:        Casablanca INT
address:        Vinohradska 184, Prague 3 - 130 52
address:        Czech republic
phone:          +420 270 000 270
fax-no:         +420 270 000 277
e-mail:         [email protected]
abuse-mailbox:  [email protected]
admin-c:        JH1771-RIPE
tech-c:         JH1771-RIPE
notify:         [email protected]
nic-hdl:        CASA3-RIPE
created:        2005-09-05T10:42:10Z
last-modified:  2015-07-03T11:19:49Z
source:         RIPE
mnt-by:         CASABLANCA-CORE-MNT

person:         Jan Hampl
address:        Casablanca INT s.r.o.
address:        Vinohradska 184
address:        130 52 Praha 3
address:        The Czech Republic
phone:          +420 270 000 262
fax-no:         +420 270 000 277
e-mail:         [email protected]
nic-hdl:        JH1771-RIPE
notify:         [email protected]
created:        2003-02-28T14:37:38Z
last-modified:  2015-07-13T11:04:26Z
source:         RIPE
mnt-by:         JH1771-RIPE-MNT

route:          81.0.228.0/24
descr:          Casablanca INT
origin:         AS15685
mnt-by:         CASABLANCA-CORE-MNT
created:        2017-06-30T09:41:17Z
last-modified:  2020-04-13T14:50:11Z
source:         RIPE

Nearby Ranges

BGP prefixes that overlap with 81.0.0.0/16

Range	ASN	Company	Num of IPs
81.0.0.0/18	AS15704	XTRA TELECOM S.A.	16,384
81.0.128.0/18	AS2116	GLOBALCONNECT AS	16,384
81.0.192.0/22	AS15685	CASABLANCA INT a.s.	1,024
81.0.248.0/23	AS51167	Contabo GmbH	512
81.0.124.0/23	AS12301	Invitech ICT Services Kft.	512
81.0.88.0/23	AS12301	Invitech ICT Services Kft.	512
81.0.96.0/23	AS12301	Invitech ICT Services Kft.	512
81.0.254.0/23	AS15685	CASABLANCA INT a.s.	512
81.0.242.0/23	AS204383	CASABLANCA INT a.s.	512
81.0.108.0/23	AS20845	DIGI - INVITEL pool	512
81.0.122.0/23	AS20845	DIGI - INVITEL pool	512
81.0.126.0/23	AS20845	DIGI - INVITEL pool	512
81.0.98.0/23	AS20845	DIGI - INVITEL pool	512
81.0.210.0/23	AS21430	WIA spol. s.r.o.	512
81.0.244.0/23	AS21430	WIA spol. s.r.o.	512
81.0.218.0/23	AS51167	Contabo GmbH	512
81.0.220.0/23	AS51167	Contabo GmbH	512
81.0.246.0/23	AS51167	Contabo GmbH	512
81.0.229.0/24	AS21430	WIA spol. s.r.o.	256
81.0.68.0/24	AS12301	Egomnet Kft.	256
81.0.119.0/24	AS12301	Data center	256
81.0.104.0/24	AS12301	Datacenter Hosting Internet	256
81.0.97.0/24	AS12301	Net-Tech Consulting Kft.	256
81.0.67.0/24	AS12301	Euroweb Internet Service Provider	256
81.0.199.0/24	AS15685	CASABLANCA INT a.s.	256
81.0.217.0/24	AS15685	CASABLANCA INT a.s.	256
81.0.226.0/24	AS15685	NETHOST s.r.o.	256
81.0.250.0/24	AS15685	CASABLANCA INT a.s.	256
81.0.227.0/24	AS21430	WIA spol. s.r.o.	256
81.0.124.0/24	AS12301	Deploy Is Kft.	256
81.0.230.0/24	AS204383	CASABLANCA INT a.s.	256

Hosted domains

There are 148 domain names hosted across 25 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
81.0.228.115	trzniodhadceny.cz	52
81.0.228.52	skladyhk.cz	43
81.0.228.95	ekuryr.cz	10
81.0.228.58	mybenefits.cz	8
81.0.228.157	dempseyclark.com	4
81.0.228.35	phonecopy.cz	3
81.0.228.27	kisjm.cz	3
81.0.228.65	rozhodci-danova.cz	2
81.0.228.176	germic.eu	2
81.0.228.22	vhled-samovka.cz	2
81.0.228.66	eichlerbus.com	2
81.0.228.97	foodsafety.cz	2
81.0.228.31	e-ombudsman.cz	2
81.0.228.92	neviditelnezeny.cz	2
81.0.228.118	howtotransfercontacts.com	2
81.0.228.28	old-aj.cz	1
81.0.228.121	pravnik-advokat.cz	1
81.0.228.111	bezpecnostpotravin.cz	1
81.0.228.183	iks-soft.cz	1
81.0.228.57	kis-stredocesky.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

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Pingable IPs

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

IP Address	ASN	Details
81.0.228.9	AS15685 CASABLANCA INT a.s.	`0.23ms` 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
31.160.247.200	AS1136 KPN B.V.	`0.46ms` from Amsterdam, NL
213.22.172.56	AS2860 NOS COMUNICACOES, S.A.	`13.65ms` from Braga, PT
152.243.237.136	AS26599 TELEFÔNICA BRASIL S.A	`12.47ms` from Curitiba, BR
73.243.120.152	AS7922 Comcast Cable Communications, LLC	`2.65ms` from Denver, US
112.92.21.8	AS17816 China Unicom IP network China169 Guangdong province	`5.99ms` from Guangzhou, CN
24.242.234.88	AS11427 Charter Communications Inc	`11.55ms` from Houston, US
39.56.161.232	AS17557 Pakistan Telecommunication Company Limited	`10.13ms` from Islamabad, PK
3.223.182.120	AS14618 Amazon.com, Inc.	`0.21ms` from Reston, US
199.11.62.136	AS1802 Sprint	`0.32ms` from Secaucus, US
1.239.10.8	AS9318 SK Broadband Co Ltd	`1.70ms` from Seoul, KR
43.134.159.72	AS132203 Tencent Building, Kejizhongyi Avenue	`0.65ms` from Singapore, SG
54.151.184.184	AS16509 Amazon.com, Inc.	`0.10ms` from Singapore, SG
46.217.115.200	AS6821 Makedonski Telekom AD-Skopje	`1.46ms` from Skopje, MK
84.206.24.184	AS31581 National Infocommunications Service Company Limited by Shares	`5.94ms` from Vienna, AT
185.39.86.8	AS62336 PURtel.com GmbH	`0.46ms` from Frankfurt am Main, DE
86.152.42.88	AS2856 British Telecommunications PLC	`5.83ms` from London, GB
79.150.243.216	AS3352 TELEFONICA DE ESPANA S.A.U.	`10.40ms` from Madrid, ES
179.100.107.232	AS27699 TELEFÔNICA BRASIL S.A	`3.08ms` from Osasco, BR
86.254.102.56	AS3215 Orange S.A.	`10.87ms` from Paris, FR
134.195.64.40	AS18779 EGIHosting	`0.12ms` from Santa Clara, US
180.229.219.200	AS17858 LG POWERCOMM	`2.38ms` from Seoul, KR
112.148.216.72	AS17858 LG POWERCOMM	`1.85ms` from Seoul, KR
85.232.137.104	AS34857 SPLIUS, UAB	`4.41ms` from Vilnius, LT
5.238.153.72	AS58224 Iran Telecommunication Company PJS	`17.30ms` from Yerevan, AM
207.159.152.40	AS13768 Aptum Technologies	`0.38ms` from Atlanta, US

Traceroute

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

traceroute -a -n -q1 -f2 81.0.228.9

traceroute to 81.0.228.9 (81.0.228.9): 64 hops max, 52 byte packets

2 [] 91.210.16.15 0.219 ms

3 [AS15685] 81.0.192.36 0.246 ms

4 [AS15685] 81.0.228.9 0.265 ms

Measurement taken from

IPinfo ProbeNet in Prague, CZ

On December 14th 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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