90.183.0.0/16

AS5610 · O2 Czech Republic, a.s.

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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

Nearby Ranges

BGP prefixes that overlap with 90.0.0.0/8

Range	ASN	Company	Num of IPs
90.192.0.0/11	AS5607	Sky UK Limited	2,097,152
90.160.0.0/12	AS12479	Orange Espagne SA	1,048,576
90.224.0.0/12	AS3301	Telia Company AB	1,048,576
90.188.0.0/15	AS12389	PJSC Rostelecom	131,072
90.150.0.0/15	AS12389	PJSC Rostelecom	131,072
90.190.0.0/15	AS3249	Telia Eesti AS	131,072
90.184.0.0/15	AS203953	Nuuday A/S	131,072
90.146.0.0/16	AS12605	LIWEST Kabelmedien GmbH	65,536
90.186.0.0/16	AS3209	Vodafone GmbH	65,536
90.135.0.0/16	AS1257	Mobile Services Lithuania	65,536
90.147.0.0/16	AS137	Consortium GARR	65,536
90.148.0.0/16	AS25019	Saudi Telecom Company JSC	65,536
90.138.0.0/16	AS1257	Mobile Services Lithuania	65,536
90.149.0.0/16	AS2527	Sony Network Communications Inc.	65,536
90.187.0.0/16	AS3209	Vodafone Deutschland GmbH	65,536
90.145.0.0/16	AS29396	Eurofiber Nederland BV	65,536
90.77.0.0/16	AS12479	Orange Spain Network	65,536
90.95.0.0/16	AS8953	Orange Romania	65,536
90.75.0.0/16	AS12479	Orange Spain Network	65,536
90.74.0.0/16	AS12479	Orange Spain Network	65,536
90.94.0.0/16	AS12479	Jazztel triple play services	65,536
90.71.0.0/16	AS12479	Orange Spain Network	65,536
90.69.0.0/16	AS12479	Orange Spain Network	65,536
90.174.0.0/16	AS12479	ORange ADSL User	65,536
90.68.0.0/16	AS12479	Orange Spain Network	65,536
90.106.0.0/16	AS12479	Orange Spain Network	65,536
90.152.128.0/17	AS8562	A1 Telekom Austria AG	32,768
90.154.128.0/17	AS59620	Vivacom Bulgaria EAD	32,768
90.154.0.0/17	AS12389	PJSC Rostelecom	32,768
90.156.0.0/17	AS43939	Netia SA	32,768
90.153.0.0/17	AS9145	EWE TEL GmbH	32,768
90.189.128.0/17	AS12389	Allocation for Novosibirsk Local Telephone Company (NGTS), Structural	32,768
90.154.128.0/17	AS8866	Vivacom Bulgaria EAD	32,768
90.154.0.0/17	AS42610	PJSC Rostelecom	32,768
90.157.0.0/17	AS35154	PJSC Rostelecom	32,768
90.157.128.0/17	AS21283	A1 Slovenija telekomunikacijske storitve,d.d.	32,768
90.19.128.0/17	AS3215	POP STR	32,768
90.19.0.0/17	AS3215	POP REN	32,768
90.133.0.0/17	AS1257	Mobile Services Latvia	32,768
90.47.128.0/17	AS3215	POP REN	32,768
90.139.128.0/17	AS1257	Mobile Services Latvia	32,768
90.64.0.0/17	AS15962	Orange Slovensko, a.s.	32,768
90.154.0.0/17	AS25515	PJSC Rostelecom	32,768
90.153.128.0/17	AS29256	AYA Internet Service Provider	32,768
90.155.128.0/17	AS29124	Iskratelecom JSC	32,768
90.21.128.0/18	AS3215	POP DIJ	16,384
90.9.192.0/18	AS3215	POP LYO	16,384
90.14.192.0/18	AS3215	POP TOU	16,384
90.14.64.0/18	AS3215	POP NIC	16,384
90.21.64.0/18	AS3215	POP ORL	16,384

Hosted domains

There are 741 domain names hosted across 148 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
90.183.125.35	harrishawk.eu	218
90.183.127.135	jutagrass.fi	18
90.183.46.178	jetty-robot.us	17
90.183.101.70	chmi.cz	16
90.183.237.13	prumyslovevlastnictvi.eu	14
90.183.26.26	autokarys.cz	10
90.183.97.133	ansys-act.cz	10
90.183.150.73	outdoorconcept.cz	7
90.183.97.130	ansys-konference.cz	7
90.183.234.109	melagro.cz	6
90.183.26.22	proteco-naradi.cz	6
90.183.123.155	ipsos-oncf.com	5
90.183.160.93	aplikace-emma.cz	5
90.183.233.78	rematiptop.sk	5
90.183.36.183	hyundai-motorczlil1a232kjl4446mnui11224z.fun	4
90.183.234.184	maxlink.cz	4
90.183.132.92	aplusbrno.cz	3
90.183.212.247	elit-ecat.cz	3
90.183.36.253	hyundaiglovis.cz	3
90.183.52.119	exdrazby.eu	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

7,210 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
90.183.68.221	AS5610 O2 Czech Republic, a.s.	`0.88ms` from Prague, CZ
90.183.33.81	AS5610 O2 Czech Republic, a.s.	`0.91ms` from Prague, CZ
90.183.156.233	AS5610 O2 Czech Republic, a.s.	`1.53ms` from Prague, CZ
90.183.149.38	AS5610 O2 Czech Republic, a.s.	`0.98ms` from Prague, CZ
90.183.166.49	AS5610 O2 Czech Republic, a.s.	`1.20ms` from Prague, CZ
90.183.138.185	AS5610 O2 Czech Republic, a.s.	`1.52ms` from Prague, CZ
90.183.126.5	AS5610 O2 Czech Republic, a.s.	`0.42ms` from Prague, CZ
90.183.23.29	AS5610 O2 Czech Republic, a.s.	`0.92ms` from Prague, CZ
90.183.61.49	AS5610 O2 Czech Republic, a.s.	`8.15ms` from Prague, CZ
90.183.141.41	AS5610 O2 Czech Republic, a.s.	`1.34ms` from Prague, CZ
90.183.24.105	AS5610 O2 Czech Republic, a.s.	`0.89ms` from Prague, CZ
90.183.52.1	AS5610 O2 Czech Republic, a.s.	`0.62ms` from Prague, CZ
90.183.127.69	AS5610 O2 Czech Republic, a.s.	`0.95ms` from Prague, CZ
90.183.12.28	AS5610 O2 Czech Republic, a.s.	`6.83ms` from Prague, CZ
90.183.130.196	AS5610 O2 Czech Republic, a.s.	`1.73ms` from Prague, CZ
90.183.98.232	AS5610 O2 Czech Republic, a.s.	`0.64ms` from Prague, CZ
90.183.154.49	AS5610 O2 Czech Republic, a.s.	`2.55ms` from Prague, CZ
90.183.121.31	AS5610 O2 Czech Republic, a.s.	`0.51ms` from Prague, CZ
90.183.67.45	AS5610 O2 Czech Republic, a.s.	`0.91ms` from Prague, CZ
90.183.143.113	AS5610 O2 Czech Republic, a.s.	`1.69ms` from Prague, CZ
90.183.109.91	AS5610 O2 Czech Republic, a.s.	`13.18ms` from Prague, CZ
90.183.161.129	AS5610 O2 Czech Republic, a.s.	`1.94ms` from Prague, CZ
90.183.16.249	AS5610 O2 Czech Republic, a.s.	`0.88ms` from Prague, CZ
90.183.116.238	AS5610 O2 Czech Republic, a.s.	`1.85ms` from Prague, CZ
90.183.108.241	AS5610 O2 Czech Republic, a.s.	`13.00ms` 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
91.181.54.48	AS5432 Proximus NV	`5.00ms` from Amsterdam, NL
23.11.217.128	AS20940 Akamai International B.V.	`0.26ms` from Ashburn, US
93.116.153.112	AS8926 Moldtelecom SA	`3.33ms` from Chisinau, MD
3.14.52.80	AS16509 Amazon.com, Inc.	`0.17ms` from Columbus, US
163.227.194.0	AS153834 S.D Enterprise	`1.88ms` from Dhaka, BD
46.92.200.96	AS3320 Deutsche Telekom AG	`4.47ms` from Frankfurt am Main, DE
52.175.33.64	AS8075 Microsoft Corporation	`0.29ms` from Hong Kong, HK
2.96.143.48	AS13285 TalkTalk Communications Limited	`2.56ms` from Manchester, GB
84.69.173.128	AS5378 Vodafone Limited	`11.25ms` from Manchester, GB
66.229.150.144	AS7922 Comcast Cable Communications, LLC	`9.89ms` from Miami, US
95.32.38.144	AS12389 PJSC Rostelecom	`8.62ms` from Moscow, RU
185.46.11.112	AS197695 "Domain names registrar REG.RU", Ltd	`1.04ms` from Moscow, RU
34.47.183.160	AS396982 Google LLC	`0.08ms` from Mumbai, IN
71.236.53.144	AS7922 Comcast Cable Communications, LLC	`10.36ms` from Murfreesboro, US
37.23.71.48	AS12389 PJSC Rostelecom	`5.61ms` from Novosibirsk, RU
175.238.86.160	AS4766 Korea Telecom	`1.88ms` from Seoul, KR
161.151.57.240	AS6253 The Prudential Insurance Company of America	`1.26ms` from Tokyo, JP
182.69.28.80	AS24560 Bharti Airtel Ltd., Telemedia Services	`2.82ms` from Ahmedabad, IN
39.103.42.160	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`1.98ms` from Beijing, CN
54.148.92.0	AS16509 Amazon.com, Inc.	`0.13ms` from Boardman, US
102.132.217.208	AS37680 Cool Ideas Service Provider (Pty) Ltd	`1.57ms` from Cape Town, ZA
122.174.113.0	AS24560 Bharti Airtel Ltd., Telemedia Services	`9.51ms` from Chennai, IN
40.122.72.80	AS8075 Microsoft Corporation	`0.20ms` from Des Moines, US
93.119.244.208	AS12360 KEVAG Telekom GmbH	`1.99ms` from Frankfurt am Main, DE
52.29.26.112	AS16509 Amazon.com, Inc.	`0.17ms` from Frankfurt am Main, DE

Traceroute

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

traceroute -a -n -q1 90.183.8.153

traceroute to 90.183.8.153 (90.183.8.153): 64 hops max, 52 byte packets

1 [AS42473] 178.255.154.92 0.24 ms

2 *

3 [AS5610] 90.183.8.153 0.884 ms

Measurement taken from

IPinfo ProbeNet in Prague, CZ

On November 14th 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.

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