90.183.0.0/16

AS5610 · O2 Czech Republic, a.s.

Need more data or want to access it via API or data downloads? Sign up to get free access

Summary

Country	Czechia
Domain	o2.cz
ASN	AS5610
Registry	RIPE
ID	CZ-CZNET-20061017

WHOIS Details

inetnum:        90.176.32.0 - 90.183.255.255
netname:        CZ-CZNET-20061017
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:        2015-11-04T10:01:29Z
last-modified:  2018-06-18T10:45:02Z
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
abuse-email:    abuse@o2.cz
abuse-c:        AR14410-RIPE
abuse-org:      undefined

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:          90.181.128.0/17
descr:          CZ.CZNET
origin:         AS5610
notify:         hostmaster@iol.cz
mnt-by:         AS5610-MTN
created:        2015-05-25T07:41:05Z
last-modified:  2015-05-25T07:41:05Z
source:         RIPE

Hosted domains

There are 743 domain names hosted across 149 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
90.183.169.73	demmy.cz	75
90.183.127.135	juta-technicke-materialy.cz	18
90.183.101.200	klokanmobil.cz	18
90.183.46.178	jettyrobot.eu	17
90.183.151.58	geberit-shop.cz	15
90.183.123.152	instantresearch.cz	11
90.183.26.40	autond.sk	10
90.183.26.26	autokarys.cz	10
90.183.123.137	promotracker.pl	7
90.183.123.139	ishopforipsos.com	6
90.183.87.138	novel-finance.sk	6
90.183.123.155	ipsos-oncf.com	5
90.183.120.136	snp2.cz	5
90.183.36.183	changeyourpasswordonline.fun	4
90.183.123.149	brd-ots.com	4
90.183.101.135	radiofajn.cz	4
90.183.137.195	izotub.com	4
90.183.123.144	ipsos-know.com	4
90.183.234.184	maxlink.eu	4
90.183.36.253	glovis.cz	3

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

7,506 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
90.183.49.49	AS5610 O2 Czech Republic, a.s.	`0.96ms` from Prague, CZ
90.183.120.1	AS5610 O2 Czech Republic, a.s.	`0.87ms` from Prague, CZ
90.183.170.145	AS5610 O2 Czech Republic, a.s.	`3.90ms` from Prague, CZ
90.183.111.220	AS5610 O2 Czech Republic, a.s.	`13.45ms` from Prague, CZ
90.183.130.196	AS5610 O2 Czech Republic, a.s.	`1.71ms` from Prague, CZ
90.183.58.48	AS5610 O2 Czech Republic, a.s.	`8.56ms` from Prague, CZ
90.183.8.5	AS5610 O2 Czech Republic, a.s.	`0.92ms` from Prague, CZ
90.183.118.21	AS5610 O2 Czech Republic, a.s.	`1.71ms` from Prague, CZ
90.183.39.17	AS5610 O2 Czech Republic, a.s.	`0.97ms` from Prague, CZ
90.183.106.13	AS5610 O2 Czech Republic, a.s.	`0.94ms` from Prague, CZ
90.183.52.1	AS5610 O2 Czech Republic, a.s.	`0.62ms` from Prague, CZ
90.183.14.186	AS5610 O2 Czech Republic, a.s.	`3.42ms` from Prague, CZ
90.183.31.61	AS5610 O2 Czech Republic, a.s.	`0.99ms` from Prague, CZ
90.183.26.55	AS5610 O2 Czech Republic, a.s.	`0.56ms` from Prague, CZ
90.183.225.33	AS5610 O2 Czech Republic, a.s.	`0.95ms` from Prague, CZ
90.183.144.161	AS5610 O2 Czech Republic, a.s.	`1.07ms` from Prague, CZ
90.183.222.37	AS5610 O2 Czech Republic, a.s.	`0.97ms` from Prague, CZ
90.183.141.50	AS5610 O2 Czech Republic, a.s.	`1.42ms` from Prague, CZ
90.183.97.121	AS5610 O2 Czech Republic, a.s.	`0.97ms` from Prague, CZ
90.183.159.121	AS5610 O2 Czech Republic, a.s.	`1.56ms` from Prague, CZ
90.183.42.21	AS5610 O2 Czech Republic, a.s.	`0.96ms` from Prague, CZ
90.183.220.89	AS5610 O2 Czech Republic, a.s.	`1.01ms` from Prague, CZ
90.183.126.65	AS5610 O2 Czech Republic, a.s.	`0.48ms` from Prague, CZ
90.183.231.202	AS5610 O2 Czech Republic, a.s.	`0.59ms` from Prague, CZ
90.183.138.185	AS5610 O2 Czech Republic, a.s.	`1.66ms` 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
213.219.129.128	AS9031 EDPNET Belgium BV	`2.36ms` from Brussels, BE
108.84.32.0	AS7018 AT&T Enterprises, LLC	`9.50ms` from Chicago, US
130.131.36.32	AS8075 Microsoft Corporation	`0.50ms` from Chicago, US
75.44.69.96	AS7018 AT&T Enterprises, LLC	`13.42ms` from Dallas, US
103.107.66.48	AS17439 NTT COMMUNICATIONS INDIA NETWORK SERVICES PRIVATE LIMITED	`1.19ms` from Delhi, IN
40.78.203.128	AS8075 Microsoft Corporation	`0.46ms` from Des Moines, US
113.173.232.16	AS45899 VNPT Corp	`1.54ms` from Ho Chi Minh City, VN
171.252.170.16	AS7552 Viettel Group	`16.54ms` from Ho Chi Minh City, VN
197.93.24.0	AS20011 Dimension Data	`10.10ms` from Johannesburg, ZA
188.61.110.80	AS3303 Swisscom (Switzerland) Ltd	`0.71ms` from Lausanne, CH
86.157.128.48	AS2856 British Telecommunications PLC	`7.02ms` from London, GB
181.140.122.176	AS13489 UNE EPM TELECOMUNICACIONES S.A.	`8.93ms` from Medellin, CO
96.234.56.48	AS701 Verizon Business	`2.77ms` from Newark, US
104.44.33.48	AS8075 Microsoft Corporation	`0.36ms` from Rio de Janeiro, BR
73.170.57.64	AS7922 Comcast Cable Communications, LLC	`5.00ms` from San Jose, US
210.183.55.16	AS4766 Korea Telecom	`1.40ms` from Seoul, KR
14.48.22.160	AS4766 Korea Telecom	`8.02ms` from Seoul, KR
122.193.209.240	AS4837 CHINA UNICOM China169 Backbone	`5.99ms` from Shanghai, CN
18.136.38.32	AS16509 Amazon.com, Inc.	`0.16ms` from Singapore, SG
18.244.85.112	AS16509 Amazon.com, Inc.	`0.21ms` from Sofia, BG
84.216.80.144	AS2119 Telenor Norge AS	`7.61ms` from Stockholm, SE
77.139.68.0	AS12849 Hot-Net internet services Ltd.	`2.50ms` from Tel Aviv, IL
52.188.181.208	AS8075 Microsoft Corporation	`0.39ms` from Ashburn, US
122.174.34.224	AS24560 Bharti Airtel Ltd., Telemedia Services	`10.64ms` from Chennai, IN
81.98.99.176	AS5089 Virgin Media Limited	`7.40ms` from London, GB

Traceroute

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

traceroute -a -n -q1 -f4 90.183.93.1

traceroute to 90.183.93.1 (90.183.93.1): 64 hops max, 52 byte packets

4 [AS5610] 194.228.21.245 1.23 ms

5 [AS5610] 194.228.21.27 1.272 ms

6 [AS5610] 194.228.222.50 1.328 ms

7 [AS5610] 90.183.93.1 0.978 ms

Measurement taken from

IPinfo ProbeNet in Prague, CZ

On September 4th 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.

An API built with users in mind: reliable, accurate, and easy-to-use

Discover why industry-leading companies around the globe love our data. IPinfo's accurate insights fuel use cases from cybersecurity, data enrichment, web personalization, and much more.

Get Started for Free Contact Sales