217.11.236.0/24

AS15685 · CASABLANCA INT a.s.

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Summary

Country	Czechia
Domain	casablanca.cz
ASN	AS15685
Registry	RIPE
ID	CZ-CASABLANCA-20000823

WHOIS Details

inetnum:        217.11.235.0 - 217.11.236.255
org:            ORG-CI1-RIPE
netname:        CZ-CASABLANCA-20000823
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:        2022-07-28T08:08:23Z
last-modified:  2022-07-28T08:08:23Z
source:         RIPE
abuse-email:    abuse@casablanca.cz
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:         hostmaster@casablanca.cz
admin-c:        JH1771-RIPE
mnt-ref:        RIPE-NCC-HM-MNT
mnt-ref:        JH1771-RIPE-MNT
notify:         hostmaster@casablanca.cz
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:    abuse@casablanca.cz
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:         hostmaster@casablanca.cz
abuse-mailbox:  abuse@casablanca.cz
admin-c:        JH1771-RIPE
tech-c:         JH1771-RIPE
notify:         hostmaster@casablanca.cz
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:         jan.hampl@casablanca.cz
nic-hdl:        JH1771-RIPE
notify:         jan.hampl@casablanca.cz
created:        2003-02-28T14:37:38Z
last-modified:  2015-07-13T11:04:26Z
source:         RIPE
mnt-by:         JH1771-RIPE-MNT

Nearby Ranges

BGP prefixes that overlap with 217.11.0.0/16

Range	ASN	Company	Num of IPs
217.11.96.0/19	AS3352	TELEFONICA DE ESPANA S.A.U.	8,192
217.11.192.0/20	AS15613	FactSet GmbH	4,096
217.11.48.0/20	AS34240	manitu GmbH	4,096
217.11.32.0/20	AS3303	Swisscom (Schweiz) AG	4,096
217.11.64.0/20	AS8720	Aspan telecom	4,096
217.11.144.0/20	AS21263	TeleData GmbH	4,096
217.11.176.0/20	AS24722	LLC Babilon-T	4,096
217.11.80.0/20	AS3302	Retelit Digital Services S.p.A.	4,096
217.11.208.0/20	AS15576	NTS workspace AG	4,096
217.11.0.0/20	AS13180	CEDACRI S.P.A.	4,096
217.11.32.0/21	AS3303	Swisscom (Schweiz) AG	2,048
217.11.40.0/21	AS3303	Swisscom (Schweiz) AG	2,048
217.11.128.0/22	AS50349	FORWEB S.C. Monika Bodetko, Tomasz Pawlowski	1,024
217.11.136.0/22	AS197091	Metroport Network	1,024
217.11.232.0/23	AS204383	CASABLANCA INT a.s.	512
217.11.140.0/23	AS56544	MarlenaNet	512
217.11.252.0/23	AS21430	WIA spol. s.r.o.	512
217.11.160.0/23	AS24997	Caucasus Digital Network LTD	512
217.11.224.0/23	AS15685	CASABLANCA INT a.s.	512
217.11.178.0/24	AS24722	TJ-SHUHRAT-20090228	256
217.11.179.0/24	AS24722	TJ-SHUHRAT-20090228	256
217.11.180.0/24	AS24722	TJ-SHUHRAT-20090228	256
217.11.181.0/24	AS24722	TJ-SHUHRAT-20090228	256
217.11.182.0/24	AS24722	TJ-SHUHRAT-20090228	256
217.11.183.0/24	AS24722	TJ-SHUHRAT-20090228	256
217.11.190.0/24	AS24722	Babilon-T	256
217.11.191.0/24	AS24722	Babilon-T	256
217.11.21.0/24	AS25184	Afranet	256
217.11.135.0/24	AS33951	RDI-RZGOW	256
217.11.164.0/24	AS44620	Netlen Internet	256
217.11.165.0/24	AS47930	Brandefense Inc.	256
217.11.166.0/24	AS57043	Snowd Security OU	256
217.11.175.0/24	AS57630	84 Grams AB	256
217.11.65.0/24	AS8720	internet_clients_Aspan_Telecom	256
217.11.68.0/24	AS8720	TOO Aspan Telecom	256
217.11.69.0/24	AS8720	VoIP_Aspan_Telecom	256
217.11.70.0/24	AS8720	Internal_BGP_few_servers_with_ppp	256
217.11.71.0/24	AS8720	internet_clients_Aspan_Telecom	256
217.11.72.0/24	AS8720	TOO Aspan Telecom	256
217.11.73.0/24	AS8720	internet_clients_Aspan_Telecom	256
217.11.74.0/24	AS8720	internet_clients_Aspan_Telecom	256
217.11.75.0/24	AS8720	internet_clients_Aspan_Telecom	256
217.11.76.0/24	AS8720	internet_clients_Aspan_Telecom	256
217.11.77.0/24	AS8720	internet_clients_Aspan_Telecom	256
217.11.78.0/24	AS8720	Aspan telecom	256
217.11.163.0/24	AS12400	DNSCLOUD	256
217.11.79.0/24	AS8720	TOO Aspan Telecom	256
217.11.235.0/24	AS15685	AliaWeb, spol. s r.o.	256
217.11.242.0/24	AS15685	Nethost s.r.o.	256
217.11.251.0/24	AS15685	CASABLANCA INT a.s.	256

Hosted domains

There are 420 domain names hosted across 24 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
217.11.236.20	cakb.cz	102
217.11.236.18	zh4a.sk	94
217.11.236.114	stonozka.org	66
217.11.236.42	vysokotlaky-cistic-karcher.cz	25
217.11.236.168	timelist.cz	25
217.11.236.84	txnmail.com	24
217.11.236.171	citroen-club.eu	19
217.11.236.37	sanumgustum.eu	16
217.11.236.38	orlight.eu	11
217.11.236.152	kamil.cz	8
217.11.236.36	ivesenergo.cz	7
217.11.236.39	globalnet.cz	3
217.11.236.41	mmsound.cz	3
217.11.236.202	toxi.cz	3
217.11.236.40	karchershop-sas.cz	2
217.11.236.43	lanostra.cz	2
217.11.236.44	pzskarvina.cz	2
217.11.236.98	ergonomics.cz	2
217.11.236.217	telus.cz	2
217.11.236.124	gg8.com	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

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

IP Address	ASN	Details
217.11.236.114	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
158.12.197.216	AS668 United States Department of Defense (DoD)	`0.34ms` from Ashburn, US
34.211.210.8	AS16509 Amazon.com, Inc.	`0.17ms` from Boardman, US
193.74.18.248	AS5432 Proximus NV	`2.01ms` from Brussels, BE
192.5.211.40	AS62905 Dart Container Corporation	`6.04ms` from Chicago, US
103.228.163.24	AS134764 CHINANET Guangdong province network	`2.90ms` from Guangzhou, CN
223.19.245.136	AS9304 HGC Global Communications Limited	`1.71ms` from Hong Kong, HK
84.33.228.8	AS34081 INCUBATEC GmbH - Srl	`1.09ms` from Munich, DE
188.243.20.232	AS35807 SkyNet Ltd.	`0.44ms` from Saint Petersburg, RU
216.230.254.248	AS23394 Pacific Software Publishing, Inc.	`0.35ms` from Seattle, US
67.183.41.152	AS7922 Comcast Cable Communications, LLC	`12.09ms` from Seattle, US
16.171.176.40	AS16509 Amazon.com, Inc.	`1.09ms` from Stockholm, SE
125.226.94.8	AS3462 Data Communication Business Group	`3.22ms` from Taipei, TW
36.129.208.40	AS56044 China Mobile communications corporation	`5.17ms` from Tieling, CN
181.121.83.8	AS23201 Telecel S.A.	`9.76ms` from Asuncion, PY
9.138.71.120	AS19901 Brightspeed	`11.51ms` from Dallas, US
83.20.185.200	AS5617 Orange Polska Spolka Akcyjna	`19.13ms` from Gdansk, PL
81.139.207.216	AS2856 British Telecommunications PLC	`2.26ms` from London, GB
88.6.113.56	AS3352 TELEFONICA DE ESPANA S.A.U.	`5.35ms` from Madrid, ES
89.82.238.104	AS5410 Bouygues Telecom SA	`5.38ms` from Marseille, FR
168.221.161.248	AS20214 Comcast Cable Communications, LLC	`1.95ms` from Miami, US
16.170.158.184	AS16509 Amazon.com, Inc.	`0.12ms` from Stockholm, SE
47.252.50.184	AS45102 Alibaba (US) Technology Co., Ltd.	`0.30ms` from Ashburn, US
198.145.61.104	AS7015 Comcast Cable Communications, LLC	`0.27ms` from Boston, US
104.7.31.56	AS7018 AT&T Enterprises, LLC	`16.04ms` from Dallas, US
91.52.127.168	AS3320 Deutsche Telekom AG	`2.78ms` from Duesseldorf, DE

Traceroute

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

traceroute -a -n -q1 -f4 217.11.236.115

traceroute to 217.11.236.115 (217.11.236.115): 64 hops max, 52 byte packets

4 [] 91.210.16.15 0.42 ms

5 [AS15685] 81.0.192.36 0.45 ms

6 [AS15685] 217.11.236.115 0.389 ms

Measurement taken from

IPinfo ProbeNet in Prague, CZ

On March 20th 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.

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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