46.183.56.0/21

AS42908 · ORIGINAL AS CZ-NORDICTELECOMREGIONAL

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Summary

Country	Czechia
Domain	o2.cz
ASN	AS42908
Registry	RIPE
ID	CZ-CZNET-20101202

WHOIS Details

inetnum:        46.183.56.0 - 46.183.63.255
netname:        CZ-CZNET-20101202
country:        CZ
org:            ORG-STaN1-RIPE
admin-c:        VAKO1-RIPE
tech-c:         CZO2-RIPE
status:         ALLOCATED PA
mnt-by:         AS5610-MTN
mnt-by:         RIPE-NCC-HM-MNT
created:        2025-04-01T07:33:38Z
last-modified:  2025-04-01T07:33:38Z
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:          46.183.56.0/21
origin:         AS42908
mnt-by:         mnt-nordictelecom
mnt-by:         AS5610-MTN
created:        2024-12-04T08:34:09Z
last-modified:  2025-04-01T10:31:26Z
source:         RIPE

Nearby Ranges

BGP prefixes that overlap with 46.183.0.0/16

Range	ASN	Company	Num of IPs
46.183.248.0/21	AS15693	Today Concepts B.V.	2,048
46.183.136.0/21	AS16245	Gigahost ApS	2,048
46.183.8.0/21	AS41357	34SP.com Limited	2,048
46.183.232.0/21	AS28716	Bit Service srl	2,048
46.183.80.0/21	AS43793	PJSC Rostelecom	2,048
46.183.64.0/21	AS16019	KVE s.r.o.	2,048
46.183.168.0/21	AS197475	Petabit AS	2,048
46.183.176.0/21	AS197453	Biz Telecom LLC	2,048
46.183.192.0/21	AS51551	Capita Business Services Ltd	2,048
46.183.96.0/21	AS34953	RelAix Networks GmbH	2,048
46.183.216.0/21	AS52048	SIA RixHost	2,048
46.183.104.0/23	AS31122		512
46.183.76.0/23	AS51941	BaseN Oy	512
46.183.50.0/23	AS48426	France Network 1	512
46.183.106.0/23	AS62059	Turbo Leisure Ltd	512
46.183.72.0/23	AS51941	BaseN IPv4 allocation	512
46.183.74.0/23	AS51941	BaseN IPv4 allocation	512
46.183.125.0/24	AS56468	MC NETWORKING Sh.p.k.	256
46.183.52.0/24	AS48426	Over-Link Network for Softbooking	256
46.183.78.0/24	AS51941	BaseN Oy	256
46.183.113.0/24	AS49635	Clouding.io Virtual Machine Hosting	256
46.183.190.0/24	AS202259	ISP4U GmbH	256
46.183.145.0/24	AS40824	Webzilla, Inc.	256
46.183.124.0/24	AS56468	MC NETWORKING Sh.p.k.	256
46.183.222.0/24	AS52048	SIA RixHost	256
46.183.120.0/24	AS56468	MC NETWORKING Sh.p.k.	256
46.183.161.0/24	AS25227	JSC Avantel	256
46.183.162.0/24	AS25227	JSC Avantel	256
46.183.163.0/24	AS197695	Domain names registrar REG.RU, Ltd	256
46.183.223.0/24	AS52048	SIA RixHost	256
46.183.112.0/24	AS49635	Clouding.io Virtual Machine Hosting	256
46.183.184.0/24	AS25467	EDIS - Infrastructure in Croatia	256
46.183.49.0/24	AS48426	France Network 2	256
46.183.122.0/24	AS56468	MC NETWORKING Sh.p.k.	256
46.183.116.0/24	AS49635	Clouding.io Virtual Machine Hosting	256
46.183.218.0/24	AS52048	SIA RixHost	256
46.183.123.0/24	AS56468	MC NETWORKING Sh.p.k.	256
46.183.188.0/24	AS202259	ISP4U GmbH	256
46.183.185.0/24	AS25467	EDIS - Infrastructure in North Macedonia	256
46.183.114.0/24	AS49635	Clouding.io Virtual Machine Hosting	256
46.183.119.0/24	AS49635	Clouding.io Virtual Machine Hosting	256
46.183.117.0/24	AS49635	Clouding.io Virtual Machine Hosting	256
46.183.191.0/24	AS202259	ISP4U GmbH	256
46.183.189.0/24	AS202259	ISP4U GmbH	256
46.183.118.0/24	AS49635	Clouding.io Virtual Machine Hosting	256
46.183.217.0/24	AS52048	SIA RixHost	256
46.183.216.0/24	AS52048	SIA RixHost	256
46.183.115.0/24	AS49635	Clouding.io Virtual Machine Hosting	256
46.183.164.0/24	AS202752	JSC Avantel	256

Hosted domains

There are 5 domain names hosted across 2 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
46.183.58.35	t-cz.com	4
46.183.57.33	smerom.eu	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

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Pingable IPs

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

IP Address	ASN	Details
46.183.57.20	AS42908 ORIGINAL AS CZ-NORDICTELECOMREGIONAL	11.24ms from Prague, CZ
46.183.56.23	AS42908 ORIGINAL AS CZ-NORDICTELECOMREGIONAL	6.77ms from Prague, CZ
46.183.58.33	AS42908 ORIGINAL AS CZ-NORDICTELECOMREGIONAL	0.86ms 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
73.129.189.85	AS7922 Comcast Cable Communications, LLC	9.72ms from Ashburn, US
136.232.209.149	AS55836 Reliance Jio Infocomm Limited	1.76ms from Chennai, IN
67.247.189.133	AS11351 Charter Communications Inc	19.76ms from Chicago, US
79.223.174.245	AS3320 Deutsche Telekom AG	3.18ms from Frankfurt am Main, DE
193.150.219.229	AS1257 Tele2 Sverige AB	1.27ms from Goeteborg, SE
188.165.36.117	AS16276 OVH SAS	0.04ms from Gravelines, FR
153.0.177.21	AS4837 CHINA UNICOM China169 Backbone	14.82ms from Guangzhou, CN
99.145.126.21	AS7018 AT&T Enterprises, LLC	3.16ms from Houston, US
86.58.69.53	AS3212 Telemach Slovenija d.o.o.	2.19ms from Ljubljana, SI
198.244.155.149	AS16276 OVH SAS	0.20ms from London, GB
80.31.119.21	AS3352 TELEFONICA DE ESPANA S.A.U.	7.67ms from Madrid, ES
70.52.24.245	AS577 Bell Canada	4.24ms from Montreal, CA
178.250.159.229	AS29182 JSC IOT	0.67ms from Moscow, RU
222.217.219.53	AS4134 CHINANET-BACKBONE	8.01ms from Nanning, CN
98.0.164.229	AS12271 Charter Communications Inc	1.85ms from New York City, US
173.61.52.5	AS701 Verizon Business	3.39ms from New York City, US
61.152.30.53	AS4812 China Telecom (Group)	1.58ms from Shanghai, CN
114.80.54.53	AS4812 China Telecom (Group)	3.21ms from Shanghai, CN
138.186.54.53	AS52900 BRASIL TECPAR \| AMIGO \| AVATO	19.65ms from Brasilia, BR
81.181.245.149	AS216249 PHOTON SPARK SRL	0.12ms from Bucharest, RO
216.204.122.149	AS7029 Windstream Communications LLC	0.84ms from Chicago, US
174.161.244.37	AS7922 Comcast Cable Communications, LLC	12.90ms from Dallas, US
98.224.242.197	AS7922 Comcast Cable Communications, LLC	8.81ms from Flint, US
84.63.56.133	AS3209 Vodafone GmbH	3.29ms from Frankfurt am Main, DE
4.182.128.197	AS8075 Microsoft Corporation	0.17ms from Frankfurt am Main, DE

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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