185.28.100.0/22

AS24806 · INTERNET CZ, a.s.

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Summary

Country	Czechia
Domain	forpsi.com
ASN	AS24806
Registry	RIPE
ID	CZ-INTERNET-20130612

WHOIS Details

inetnum:        185.28.100.0 - 185.28.103.255
netname:        CZ-INTERNET-20130612
country:        CZ
org:            ORG-ICa1-RIPE
admin-c:        ES4377-RIPE
tech-c:         FK4606-RIPE
status:         ALLOCATED PA
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         INTERNET-CZ-MNT
mnt-routes:     INTERNET-CZ-MNT
notify:         frantisek.koller@forpsi.com
created:        2013-06-12T15:28:18Z
last-modified:  2023-07-03T12:24:58Z
source:         RIPE
abuse-email:    abuse@forpsi.com
abuse-c:        ICZ-RIPE
abuse-org:      ORG-ICa1-RIPE

organisation:   ORG-ICa1-RIPE
org-name:       INTERNET CZ, a.s.
country:        CZ
org-type:       LIR
address:        Ktis 2
address:        38403
address:        Ktis
address:        CZECH REPUBLIC
phone:          +420 383835353
fax-no:         +420 383835354
admin-c:        SC279-RIPE
admin-c:        ES4377-RIPE
admin-c:        FK4606-RIPE
mnt-ref:        INTERNET-CZ-MNT
mnt-ref:        RIPE-NCC-HM-MNT
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         INTERNET-CZ-MNT
abuse-c:        ICZ-RIPE
created:        2004-04-17T11:04:30Z
last-modified:  2025-04-25T07:33:27Z
source:         RIPE
e-mail:         noc@forpsi.com
abuse-email:    abuse@forpsi.com
abuse-c:        ICZ-RIPE
abuse-org:      undefined

person:         Erich Syrovatka
address:        INTERNET CZ, a.s.
address:        Ktis 2
address:        Ktis
address:        384 03
address:        CZ
phone:          +420 383835353
nic-hdl:        ES4377-RIPE
mnt-by:         INTERNET-CZ-MNT
created:        2007-12-11T09:18:22Z
last-modified:  2017-10-30T21:57:50Z
source:         RIPE

person:         Frantisek Koller
address:        INTERNET CZ, a.s.
address:        Ktis 2
address:        Ktis
address:        384 03
address:        CZ
phone:          +420 383835353
nic-hdl:        FK4606-RIPE
mnt-by:         INTERNET-CZ-MNT
created:        2023-07-03T11:04:01Z
last-modified:  2023-07-03T11:04:01Z
source:         RIPE

route:          185.28.100.0/22
descr:          INTERNET CZ, a.s.
origin:         AS24806
mnt-by:         INTERNET-CZ-MNT
created:        2013-07-04T13:58:48Z
last-modified:  2020-11-23T13:27:42Z
source:         RIPE

Nearby Ranges

BGP prefixes that overlap with 185.28.0.0/16

Range	ASN	Company	Num of IPs
185.28.144.0/22	AS12426	Slovanet a.s.	1,024
185.28.40.0/22	AS201635	Jaune de Mars SAS	1,024
185.28.72.0/22	AS14537	CONTINENT 8 TECHNOLOGIES PLC	1,024
185.28.148.0/22	AS15879	Vancis IP B.V.	1,024
185.28.180.0/22	AS203020	HostRoyale Technologies Pvt Ltd	1,024
185.28.224.0/22	AS49784	Netvisit B.V.	1,024
185.28.28.0/22	AS47866	iBrowse FR subscribers	1,024
185.28.104.0/22	AS8926	Moldtelecom SA	1,024
185.28.52.0/22	AS8265	FASTNET SpA	1,024
185.28.156.0/22	AS60574	Christian clos	1,024
185.28.208.0/22	AS208527	Wieland-Werke AG	1,024
185.28.204.0/22	AS206610	Voipgate S.A.	1,024
185.28.216.0/22	AS262191	LIBERTY NETWORKS DE COLOMBIA S.A.S	1,024
185.28.252.0/22	AS25369	Hydra Communications Ltd	1,024
185.28.240.0/22	AS25160	Vorboss Limited	1,024
185.28.128.0/22	AS31169	Sognenett AS	1,024
185.28.236.0/22	AS44387	LLC Korad Plus	1,024
185.28.112.0/22	AS60228	Six Degrees Technology Group Limited	1,024
185.28.244.0/22	AS58003	Planeetta Internet Oy	1,024
185.28.164.0/22	AS60610	Amito Ltd	1,024
185.28.248.0/22	AS60624	MyNET Sp. z o.o.	1,024
185.28.4.0/22	AS21473	PFALZKOM GmbH	1,024
185.28.8.0/22	AS21283	A1 Slovenija	1,024
185.28.140.0/22	AS200064	Red digital de telecomunicaciones de las Islas Baleares S.L	1,024
185.28.228.0/22	AS12843	Schleupen SE	1,024
185.28.168.0/22	AS200845	AVATEL TELECOM, SA	1,024
185.28.184.0/22	AS50324	Campus, Hofnetz & Events GmbH	1,024
185.28.16.0/22	AS42927	S-NET Sp. z o.o.	1,024
185.28.232.0/22	AS39605	Spartoo SAS	1,024
185.28.72.0/23	AS14537	Continent 8 Technologies (Malta) Limited	512
185.28.86.0/23	AS16509	Amazon.com, Inc.	512
185.28.92.0/23	AS202149	thePlatform UK Hosting	512
185.28.3.0/24	AS201178	SAGLAYICI Teknoloji Bilisim Yayincilik Hiz. Ticaret Ltd. Sti.	256
185.28.2.0/24	AS201178	SAGLAYICI Teknoloji Bilisim Yayincilik Hiz. Ticaret Ltd. Sti.	256
185.28.142.0/24	AS200064	IBRed Ibiza	256
185.28.1.0/24	AS201178	KURESEL BETA TEKNOLOJI TELEKOMUNIKASYON SANAYI TICARET LTD STI	256
185.28.0.0/24	AS201178	Euronet Telekomunikasyon A.S.	256
185.28.141.0/24	AS200064	IBRed Ibiza	256
185.28.63.0/24	AS201021	Ahmet Onur Guney trading as Onur Bilisim Ve Yazilim Hizmetleri	256
185.28.62.0/24	AS201021	Ahmet Onur Guney trading as Onur Bilisim Ve Yazilim Hizmetleri	256
185.28.61.0/24	AS201021	Ahmet Onur Guney trading as Onur Bilisim Ve Yazilim Hizmetleri	256
185.28.7.0/24	AS21473	Pepperl + Fuchs GmbH	256
185.28.61.0/24	AS201021	Ahmet Onur Guney trading as Onur Bilisim Ve Yazilim Hizmetleri	256
185.28.212.0/24	AS197669	CloudCall Ltd	256
185.28.109.0/24	AS12773	MM network	256
185.28.60.0/24	AS201021	Ahmet Onur Guney trading as Onur Bilisim Ve Yazilim Hizmetleri	256
185.28.84.0/24	AS216129	SEBEK sp. z o.o	256
185.28.44.0/24	AS216219	Ken Madlehn	256
185.28.50.0/24	AS212097	VIMTEL REDES	256

Hosted domains

There are 686 domain names hosted across 165 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
185.28.103.13	okennikliky.cz	122
185.28.101.112	moyrashop.co.uk	64
185.28.102.151	pronajemmercedes.cz	41
185.28.100.178	sekacky-weibang.cz	40
185.28.100.204	kama.hu	26
185.28.103.90	vlackovarestaurace.cz	15
185.28.100.44	kovarstvi-khun.cz	14
185.28.100.227	charge4way.cz	12
185.28.100.212	zajisteno.eu	11
185.28.100.124	spyke.hu	11
185.28.101.20	qedgroup.cz	9
185.28.103.84	zrustici.cz	9
185.28.100.37	worldofcbd.eu	9
185.28.100.96	frkca.info	8
185.28.100.79	tichonov.cz	8
185.28.101.246	merret.cz	7
185.28.100.149	aixin.cz	7
185.28.101.23	haccpvarazslo.hu	7
185.28.102.236	kzspol.cz	6
185.28.101.53	responsible-kids.eu	6

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

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

IP Address	ASN	Details
185.28.100.73	AS24806 INTERNET CZ, a.s.	`3.48ms` from Prague, CZ
185.28.103.165	AS24806 INTERNET CZ, a.s.	`3.52ms` from Prague, CZ
185.28.101.224	AS24806 INTERNET CZ, a.s.	`3.53ms` from Prague, CZ
185.28.102.210	AS24806 INTERNET CZ, a.s.	`3.52ms` 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
121.18.50.6	AS4837 CHINA UNICOM China169 Backbone	`8.73ms` from Beijing, CN
34.215.195.86	AS16509 Amazon.com, Inc.	`0.17ms` from Boardman, US
50.187.115.118	AS7922 Comcast Cable Communications, LLC	`6.32ms` from Boston, US
201.179.172.198	AS22927 Telefonica de Argentina	`7.81ms` from Buenos Aires, AR
174.84.58.134	AS20115 Charter Communications LLC	`15.33ms` from Chicago, US
220.241.15.54	AS4515 PCCW IMS Ltd (PCCW Business Internet Access)	`1.39ms` from Hong Kong, HK
104.185.120.246	AS7018 AT&T Enterprises, LLC	`3.40ms` from Houston, US
75.156.3.6	AS852 TELUS Communications Inc.	`5.04ms` from Kelowna, CA
208.127.123.102	AS394089 Google LLC	`0.22ms` from London, GB
208.76.54.102	AS47869 ColoHouse LLC	`0.19ms` from Miami, US
31.34.170.150	AS5410 Bouygues Telecom SA	`7.67ms` from Paris, FR
73.230.21.166	AS7922 Comcast Cable Communications, LLC	`19.73ms` from Reston, US
18.136.89.22	AS16509 Amazon.com, Inc.	`0.14ms` from Singapore, SG
83.226.177.214	AS8434 Telenor Sverige AB	`4.50ms` from Stockholm, SE
187.104.158.6	AS28573 Claro NXT Telecomunicacoes Ltda	`8.86ms` from São Paulo, BR
182.92.206.230	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`1.94ms` from Beijing, CN
14.189.110.102	AS45899 VNPT Corp	`3.07ms` from Hanoi, VN
8.218.160.54	AS45102 Alibaba (US) Technology Co., Ltd.	`0.91ms` from Hong Kong, HK
188.50.8.134	AS25019 Saudi Telecom Company JSC	`4.56ms` from Jeddah, SA
138.249.44.54	AS48031 Ivanov Vitaliy Sergeevich	`0.12ms` from Kyiv, UA
144.121.64.246	AS46887 Crown Castle Fiber LLC	`0.46ms` from New York City, US
185.228.111.6	AS60695 NETRONIK sp. z o.o.	`0.33ms` from Poznan, PL
71.225.68.246	AS7922 Comcast Cable Communications, LLC	`7.50ms` from Secaucus, US
18.143.172.22	AS16509 Amazon.com, Inc.	`0.54ms` from Singapore, SG
18.136.245.86	AS16509 Amazon.com, Inc.	`0.16ms` from Singapore, SG

Traceroute

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

traceroute -a -n -q1 -f3 185.28.103.3

traceroute to 185.28.103.3 (185.28.103.3): 64 hops max, 52 byte packets

3 [] 91.210.16.165 1.332 ms

4 [AS24806] 81.2.192.17 3.939 ms

5 [AS24806] 185.28.103.3 3.867 ms

Measurement taken from

IPinfo ProbeNet in Prague, CZ

On December 28th 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.

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