194.228.128.0/17

AS5610 · O2 Czech Republic, a.s.

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Summary

Country	Czechia
Domain	o2.cz
ASN	AS5610
Parent Range	194.228.0.0/16
Registry	RIPE
ID	CZ-CZNET-971003

WHOIS Details

inetnum:        194.228.0.0 - 194.228.255.255
netname:        CZ-CZNET-971003
country:        CZ
org:            ORG-STaN1-RIPE
admin-c:        CZO2-RIPE
admin-c:        VAKO1-RIPE
tech-c:         CZO2-RIPE
tech-c:         VAKO1-RIPE
status:         ALLOCATED PA
remarks:        For all problems with spam
remarks:        please contact postmaster@iol.cz
remarks:        Abuse Contact:abuse@o2.cz
remarks:        * Hack Attacks, Illegal Activity, Violation, Scans, Probes, etc.
notify:         reg@telecom.cz
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         AS5610-MTN
created:        2002-06-13T15:24:43Z
last-modified:  2018-05-21T08:41:44Z
source:         RIPE
abuse-email:    abuse@o2.cz
abuse-c:        AR14410-RIPE
abuse-org:      ORG-STaN1-RIPE

organisation:   ORG-STaN1-RIPE
org-name:       O2 Czech Republic, a.s.
country:        CZ
org-type:       LIR
address:        Za Brumlovkou 266/2
address:        140 22
address:        Praha 4 - Michle
address:        CZECH REPUBLIC
phone:          +420 2 71466184
fax-no:         +420 2 71464414
e-mail:         marek.vogel@o2.cz
admin-c:        VAKO1-RIPE
admin-c:        MV96-RIPE
admin-c:        HVJI1-RIPE
tech-c:         CZO2-RIPE
abuse-c:        AR14410-RIPE
mnt-ref:        RIPE-NCC-HM-MNT
mnt-ref:        AS5610-MTN
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         AS5610-MTN
created:        2004-04-17T11:04:17Z
last-modified:  2020-12-16T12:31:56Z
source:         RIPE

role:           5610-Tech-and-Admin
address:        Za Brumlovkou 266/2
address:        Praha 4 - Michle, PSC 140 22
e-mail:         router@o2.cz
nic-hdl:        CZO2-RIPE
admin-c:        VAKO1-RIPE
admin-c:        MV96-RIPE
admin-c:        HVJI1-RIPE
tech-c:         VAKO1-RIPE
tech-c:         HVJI1-RIPE
abuse-mailbox:  abuse@o2.cz
org:            ORG-STaN1-RIPE
mnt-by:         AS5610-MTN
created:        2016-02-18T09:58:30Z
last-modified:  2018-04-20T10:44:21Z
source:         RIPE

person:         Vaclav Kordula
address:        O2 Czech Republic, a.s.
address:        Za Brumlovkou 266/2
address:        Praha 4 - Michle, PS? 140 22
address:        Czech Republic
phone:          +420 2 714668845
e-mail:         vaclav.kordula@o2.cz
nic-hdl:        VAKO1-RIPE
notify:         vaclav.kordula@o2.cz
mnt-by:         AS5610-MTN
created:        1970-01-01T00:00:00Z
last-modified:  2016-02-12T13:32:30Z
source:         RIPE

route:          194.228.0.0/16
descr:          CZ.CZNET
origin:         AS5610
notify:         hostmaster@iol.cz
mnt-by:         AS5610-MTN
created:        2002-06-26T15:37:40Z
last-modified:  2002-06-26T15:37:40Z
source:         RIPE

Overlapping Ranges

BGP prefixes that contain 194.228.128.0/17

Range	ASN	Company	Num of IPs
194.228.0.0/16	AS5610	O2 Czech Republic, a.s.	65,536

Nearby Ranges

BGP prefixes that overlap with 194.228.0.0/16

Range	ASN	Company	Num of IPs
194.228.0.0/16	AS5610	O2 Czech Republic, a.s.	65,536

Hosted domains

There are 394 domain names hosted across 73 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
194.228.235.215	bcas.cz	139
194.228.197.168	kaminka.cz	57
194.228.244.81	galafruit.cz	27
194.228.175.140	gls-czech.com	12
194.228.174.16	konzulta.cz	5
194.228.200.38	gps-sledovani-vozidel.cz	5
194.228.207.67	ckkarate.cz	5
194.228.175.101	smartme.cz	4
194.228.224.217	recenzedialogu3000.cz	4
194.228.249.8	servisenergo.eu	4
194.228.215.41	brasscarera.cz	4
194.228.200.39	cobraparachute.com	4
194.228.200.14	torg.cz	2
194.228.211.194	igristoe.com	2
194.228.149.227	rubin-cz.cz	2
194.228.200.216	akustera.cz	2
194.228.149.82	am-dily.eu	1
194.228.200.102	aldm.cz	1
194.228.151.57	krueger.cz	1
194.228.149.81	saradiva.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

Read more

Pingable IPs

1,457 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
194.228.226.161	AS5610 O2 Czech Republic, a.s.	`0.98ms` from Prague, CZ
194.228.230.21	AS5610 O2 Czech Republic, a.s.	`0.39ms` from Prague, CZ
194.228.131.212	AS5610 O2 Czech Republic, a.s.	`4.75ms` from Prague, CZ
194.228.241.81	AS5610 O2 Czech Republic, a.s.	`0.91ms` from Prague, CZ
194.228.200.121	AS5610 O2 Czech Republic, a.s.	`0.56ms` from Prague, CZ
194.228.245.73	AS5610 O2 Czech Republic, a.s.	`1.61ms` from Prague, CZ
194.228.225.26	AS5610 O2 Czech Republic, a.s.	`0.46ms` from Prague, CZ
194.228.165.218	AS5610 O2 Czech Republic, a.s.	`12.57ms` from Prague, CZ
194.228.205.202	AS5610 O2 Czech Republic, a.s.	`9.28ms` from Prague, CZ
194.228.215.129	AS5610 O2 Czech Republic, a.s.	`0.97ms` from Prague, CZ
194.228.193.237	AS5610 O2 Czech Republic, a.s.	`4.54ms` from Prague, CZ
194.228.231.174	AS5610 O2 Czech Republic, a.s.	`5.52ms` from Prague, CZ
194.228.176.132	AS5610 O2 Czech Republic, a.s.	`0.51ms` from Prague, CZ
194.228.253.109	AS5610 O2 Czech Republic, a.s.	`0.89ms` from Prague, CZ
194.228.254.117	AS5610 O2 Czech Republic, a.s.	`0.92ms` from Prague, CZ
194.228.247.233	AS5610 O2 Czech Republic, a.s.	`0.56ms` from Prague, CZ
194.228.164.164	AS5610 O2 Czech Republic, a.s.	`9.47ms` from Prague, CZ
194.228.220.88	AS5610 O2 Czech Republic, a.s.	`1.62ms` from Prague, CZ
194.228.252.96	AS5610 O2 Czech Republic, a.s.	`0.92ms` from Prague, CZ
194.228.152.173	AS5610 O2 Czech Republic, a.s.	`5.39ms` from Prague, CZ
194.228.143.57	AS5610 O2 Czech Republic, a.s.	`1.36ms` from Prague, CZ
194.228.221.225	AS5610 O2 Czech Republic, a.s.	`0.97ms` from Prague, CZ
194.228.211.33	AS5610 O2 Czech Republic, a.s.	`0.44ms` from Prague, CZ
194.228.207.1	AS5610 O2 Czech Republic, a.s.	`5.90ms` from Prague, CZ
194.228.237.137	AS5610 O2 Czech Republic, a.s.	`2.55ms` 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
44.204.109.145	AS14618 Amazon.com, Inc.	`0.88ms` from Ashburn, US
24.144.213.1	AS27364 Armstrong	`11.77ms` from Ashburn, US
76.104.81.1	AS7922 Comcast Cable Communications, LLC	`5.17ms` from Ashburn, US
73.137.116.1	AS7922 Comcast Cable Communications, LLC	`2.02ms` from Atlanta, US
110.240.166.1	AS4837 CHINA UNICOM China169 Backbone	`8.00ms` from Beijing, CN
82.165.77.33	AS8560 IONOS SE	`0.71ms` from Berlin, DE
44.237.138.33	AS16509 Amazon.com, Inc.	`0.14ms` from Boardman, US
191.107.212.17	AS3816 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC	`7.84ms` from Bogota, CO
212.88.226.81	AS6848 Telenet BV	`3.00ms` from Brussels, BE
200.59.176.17	AS27994 Servicios para el Transporte de Información S.A.	`2.07ms` from Buenos Aires, AR
190.190.86.1	AS7303 Telecom Argentina S.A.	`1.00ms` from Buenos Aires, AR
173.94.24.1	AS11426 Charter Communications Inc	`4.66ms` from Charlotte, US
139.204.88.1	AS4134 CHINANET-BACKBONE	`10.13ms` from Chengdu, CN
75.142.185.225	AS20115 Charter Communications LLC	`4.49ms` from Dallas, US
199.20.32.1	AS25956 Logix	`0.96ms` from Dallas, US
128.12.136.1	AS32 Stanford University	`1.48ms` from Fremont, US
4.223.240.65	AS8075 Microsoft Corporation	`0.22ms` from Gaevle, SE
103.3.215.1	AS131745 PT. Cybertechtonic Pratama	`0.31ms` from Jakarta, ID
120.224.152.1	AS24444 Shandong Mobile Communication Company Limited	`6.07ms` from Jinan, CN
136.61.218.17	AS16591 Google Fiber Inc.	`0.75ms` from Kansas City, US
192.208.31.1	AS29804 Valu-Net LLC.	`3.79ms` from Kansas City, US
12.8.250.17	AS7018 AT&T Enterprises, LLC	`1.03ms` from Kansas City, US
103.250.108.1	AS137654 Netstra Communications Pvt Ltd	`0.76ms` from Kolkata, IN
41.87.68.1	AS37248 Phase3 Telecom Limited	`0.51ms` from Lagos, NG
36.48.232.1	AS4134 CHINANET-BACKBONE	`15.40ms` from Liaoyang, CN

Traceroute

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

traceroute -a -n -q1 -f3 -m7 194.228.156.54

traceroute to 194.228.156.54 (194.228.156.54): 7 hops max, 52 byte packets

3 [AS136106] 103.87.184.221 313 ms

4 [AS136106] 103.87.187.29 20.658 ms

5 *

6 *

7 *

Measurement taken from

IPinfo ProbeNet in Yogyakarta, ID

On December 28th 2025

What are IP address ranges?

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