194.228.0.0/17

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 194.228.0.0/17

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 1,506 domain names hosted across 239 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
194.228.93.211	zelingr.eu	207
194.228.93.212	realitnisluzbyjakesiprejete.cz	96
194.228.31.12	alpynaden.cz	92
194.228.50.49	nogardit.cz	56
194.228.50.10	aikibudo.cz	44
194.228.93.213	karanskabyt.cz	44
194.228.31.45	torkoniakova.cz	40
194.228.69.40	gpwebpay.com	34
194.228.50.152	digidatarch.cz	32
194.228.118.196	profi-med.cz	31
194.228.61.215	dajto.sk	30
194.228.52.221	altoamedicaltourism.com	30
194.228.65.56	gennet-letna.cz	27
194.228.50.123	vodice.sk	27
194.228.12.62	flirtuj.eu	24
194.228.111.102	dvorakovapraha.net	23
194.228.50.128	zabradelnimostnisvodidla.cz	22
194.228.52.237	sag.cz	22
194.228.31.14	pobytyprozdravotniky.cz	20
194.228.31.17	bilapokladna.cz	19

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

4,337 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
194.228.112.2	AS5610 O2 Czech Republic, a.s.	`0.84ms` from Prague, CZ
194.228.65.163	AS5610 O2 Czech Republic, a.s.	`0.55ms` from Prague, CZ
194.228.21.90	AS5610 O2 Czech Republic, a.s.	`0.47ms` from Prague, CZ
194.228.40.5	AS5610 O2 Czech Republic, a.s.	`0.91ms` from Prague, CZ
194.228.83.137	AS5610 O2 Czech Republic, a.s.	`0.86ms` from Prague, CZ
194.228.100.73	AS5610 O2 Czech Republic, a.s.	`0.97ms` from Prague, CZ
194.228.51.49	AS5610 O2 Czech Republic, a.s.	`0.91ms` from Prague, CZ
194.228.106.241	AS5610 O2 Czech Republic, a.s.	`0.77ms` from Prague, CZ
194.228.63.124	AS5610 O2 Czech Republic, a.s.	`0.51ms` from Prague, CZ
194.228.113.65	AS5610 O2 Czech Republic, a.s.	`0.95ms` from Prague, CZ
194.228.41.65	AS5610 O2 Czech Republic, a.s.	`0.55ms` from Prague, CZ
194.228.45.49	AS5610 O2 Czech Republic, a.s.	`0.88ms` from Prague, CZ
194.228.78.113	AS5610 O2 Czech Republic, a.s.	`0.49ms` from Prague, CZ
194.228.50.51	AS5610 O2 Czech Republic, a.s.	`3.71ms` from Prague, CZ
194.228.92.128	AS5610 O2 Czech Republic, a.s.	`0.43ms` from Prague, CZ
194.228.2.2	AS5610 O2 Czech Republic, a.s.	`0.60ms` from Prague, CZ
194.228.91.245	AS5610 O2 Czech Republic, a.s.	`0.90ms` from Prague, CZ
194.228.15.90	AS5610 O2 Czech Republic, a.s.	`0.90ms` from Prague, CZ
194.228.31.113	AS5610 O2 Czech Republic, a.s.	`0.60ms` from Prague, CZ
194.228.64.1	AS5610 O2 Czech Republic, a.s.	`0.63ms` from Prague, CZ
194.228.84.22	AS5610 O2 Czech Republic, a.s.	`0.55ms` from Prague, CZ
194.228.101.178	AS5610 O2 Czech Republic, a.s.	`1.36ms` from Prague, CZ
194.228.19.149	AS5610 O2 Czech Republic, a.s.	`0.89ms` from Prague, CZ
194.228.108.41	AS5610 O2 Czech Republic, a.s.	`0.92ms` from Prague, CZ
194.228.22.121	AS5610 O2 Czech Republic, a.s.	`0.95ms` 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
139.130.154.1	AS1221 Telstra Limited	`0.79ms` from Adelaide, AU
86.81.129.113	AS1136 KPN B.V.	`2.61ms` from Amsterdam, NL
178.85.145.1	AS33915 Vodafone Libertel B.V.	`6.54ms` from Amsterdam, NL
13.69.102.225	AS8075 Microsoft Corporation	`0.21ms` from Amsterdam, NL
137.103.13.1	AS11776 Breezeline	`12.16ms` from Ashburn, US
75.109.68.97	AS19108 Optimum	`7.87ms` from Ashburn, US
129.213.8.49	AS31898 Oracle Corporation	`0.26ms` from Ashburn, US
204.92.159.49	AS701 Verizon Business	`12.15ms` from Ashburn, US
71.255.227.1	AS701 Verizon Business	`1.67ms` from Ashburn, US
96.249.238.1	AS701 Verizon Business	`9.68ms` from Ashburn, US
50.144.133.97	AS7922 Comcast Cable Communications, LLC	`2.93ms` from Ashburn, US
54.230.192.33	AS16509 Amazon.com, Inc.	`0.03ms` from Bangkok, TH
188.250.45.1	AS3243 MEO - SERVICOS DE COMUNICACOES E MULTIMEDIA S.A.	`0.53ms` from Braga, PT
158.193.209.49	AS2607 Zdruzenie pouzivatelov Slovenskej akademickej datovej siete SANET	`4.14ms` from Bratislava, SK
190.97.16.1	AS27833 BVNET S.A.	`7.42ms` from Buenos Aires, AR
181.164.188.1	AS7303 Telecom Argentina S.A.	`1.29ms` from Buenos Aires, AR
190.226.117.1	AS7303 Telecom Argentina S.A.	`3.65ms` from Buenos Aires, AR
181.169.158.1	AS7303 Telecom Argentina S.A.	`2.23ms` from Buenos Aires, AR
186.127.105.1	AS7303 Telecom Argentina S.A.	`1.08ms` from Buenos Aires, AR
181.230.167.1	AS7303 Telecom Argentina S.A.	`16.75ms` from Buenos Aires, AR
40.177.209.113	AS16509 Amazon.com, Inc.	`1.68ms` from Calgary, CA
14.98.111.161	AS45820 Tata Teleservices ISP AS	`2.36ms` from Chennai, IN
218.248.23.225	AS9829 National Internet Backbone	`1.26ms` from Chennai, IN
75.245.96.33	AS6167 Verizon Business	`11.81ms` from Chicago, US
68.116.153.97	AS20115 Charter Communications LLC	`7.17ms` from Dallas, US

Traceroute

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

traceroute -a -n -q1 194.228.7.133

traceroute to 194.228.7.133 (194.228.7.133): 64 hops max, 52 byte packets

1 [AS42473] 178.255.154.92 0.189 ms

2 *

3 [AS5610] 194.228.7.133 1.05 ms

Measurement taken from

IPinfo ProbeNet in Prague, CZ

On February 7th 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.

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