217.197.144.0/20

AS42908 · ORIGINAL AS CZ-NORDICTELECOMREGIONAL

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Summary

Country	Czechia
Domain	o2.cz
ASN	AS42908
Registry	RIPE
ID	CZ-CZNET-20041021

WHOIS Details

inetnum:        217.197.144.0 - 217.197.159.255
netname:        CZ-CZNET-20041021
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:          217.197.144.0/20
origin:         AS42908
mnt-by:         mnt-nordictelecom
mnt-by:         AS5610-MTN
created:        2025-02-04T19:56:22Z
last-modified:  2025-04-01T10:56:15Z
source:         RIPE

Nearby Ranges

BGP prefixes that overlap with 217.197.0.0/16

Range	ASN	Company	Num of IPs
217.197.224.0/20	AS24739	JSC Severen-Telecom	4,096
217.197.80.0/20	AS29670	Lehrter Str. 53	4,096
217.197.32.0/20	AS34080	MIRAMO spol. s.r.o.	4,096
217.197.112.0/20	AS20655	e-Style ISP LLC	4,096
217.197.176.0/20	AS20845	DIGI Tavkozlesi es Szolgaltato Kft.	4,096
217.197.0.0/20	AS5495	Saint Petersburg State University	4,096
217.197.240.0/20	AS34139	CJSC TSINET, Broadband network segment	4,096
217.197.136.0/21	AS42560	Telemach BH d.o.o. Sarajevo	2,048
217.197.128.0/21	AS15576	Cirrax GmbH	2,048
217.197.172.0/22	AS197726	Miranda-Media Ltd	1,024
217.197.48.0/22	AS3246	Ljungby Energi AB	1,024
217.197.200.0/22	AS20985	pptp dynamic address pool (Chernogolovka)	1,024
217.197.56.0/22	AS3301	Ide och ResursCentrum AB	1,024
217.197.164.0/22	AS50304	Blix Fiber	1,024
217.197.60.0/22	AS3301	Local serviceprovider	1,024
217.197.204.0/22	AS20985	pptp dynamic address pool (Chernogolovka)	1,024
217.197.196.0/22	AS20985	pptp dynamic address pool (Chernogolovka)	1,024
217.197.194.0/23	AS20985	pptp dynamic address pool (Noginsk)	512
217.197.162.0/24	AS9009	Think Huge Ltd	256
217.197.171.0/24	AS30337	Wired ISP Inc.	256
217.197.20.0/24	AS51487	DONNALIVE	256
217.197.193.0/24	AS197460	dynamic addresses for Zencom LTD, Zvenigorod	256
217.197.30.0/24	AS51487	DONNA LIVE S.COOP.	256
217.197.192.0/24	AS197460	dynamic addresses for Zencom LTD, Zvenigorod	256
217.197.28.0/24	AS51487	ENRIQUE GARCIA	256
217.197.18.0/24	AS51487	PANIX	256
217.197.160.0/24	AS9009	Think Huge Ltd	256
217.197.161.0/24	AS9009	Think Huge Ltd	256
217.197.54.0/24	AS3246	Ljungby Energi AB Box 262 341 25 Ljungby	256
217.197.22.0/24	AS51487	DONNALIVE	256
217.197.29.0/24	AS51487	ISP MOLINA	256
217.197.23.0/24	AS51487	PANIX	256
217.197.168.0/24	AS30337	Wired ISP Inc.	256
217.197.163.0/24	AS9009	Think Huge Ltd	256
217.197.16.0/24	AS51487	PANIX	256
217.197.25.0/24	AS51487	ISPMURCIA	256

Hosted domains

There are 82 domain names hosted across 30 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
217.197.152.167	e-pivo.cz	12
217.197.159.36	expozicekarlakryla.cz	10
217.197.152.168	skiatlas.eu	10
217.197.154.34	ip-kamerove-systemy.cz	9
217.197.157.238	chvalcov.cz	3
217.197.154.27	mactac.sk	3
217.197.152.33	pneuform.cz	3
217.197.152.130	elkoep.com.ua	3
217.197.159.38	utulekkromeriz.cz	3
217.197.158.116	coptel.cz	2
217.197.149.135	dolezel.org	2
217.197.152.148	rf-control.hu	2
217.197.148.9	ka-ak.cz	2
217.197.144.137	hydor.cz	2
217.197.152.163	aukcerealit.eu	1
217.197.152.172	altivar.cz	1
217.197.159.37	hdmedia.cz	1
217.197.156.147	sekac.cz	1
217.197.154.143	zahradni-architektura.cz	1
217.197.159.39	skolahroukromeriz.cz	1

Hosted domains API

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Pingable IPs

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

IP Address	ASN	Details
217.197.147.1	AS42908 ORIGINAL AS CZ-NORDICTELECOMREGIONAL	0.84ms from Prague, CZ
217.197.156.1	AS42908 ORIGINAL AS CZ-NORDICTELECOMREGIONAL	0.84ms from Prague, CZ
217.197.145.1	AS42908 ORIGINAL AS CZ-NORDICTELECOMREGIONAL	0.86ms from Prague, CZ
217.197.155.131	AS42908 ORIGINAL AS CZ-NORDICTELECOMREGIONAL	8.94ms from Prague, CZ
217.197.152.129	AS42908 ORIGINAL AS CZ-NORDICTELECOMREGIONAL	0.84ms from Prague, CZ
217.197.144.45	AS42908 ORIGINAL AS CZ-NORDICTELECOMREGIONAL	0.84ms from Prague, CZ
217.197.151.173	AS42908 ORIGINAL AS CZ-NORDICTELECOMREGIONAL	0.87ms from Prague, CZ
217.197.158.17	AS42908 ORIGINAL AS CZ-NORDICTELECOMREGIONAL	0.78ms from Prague, CZ
217.197.159.2	AS42908 ORIGINAL AS CZ-NORDICTELECOMREGIONAL	5.77ms from Prague, CZ
217.197.154.49	AS42908 ORIGINAL AS CZ-NORDICTELECOMREGIONAL	0.81ms from Prague, CZ
217.197.157.253	AS42908 ORIGINAL AS CZ-NORDICTELECOMREGIONAL	0.82ms 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
88.211.235.84	AS7979 Servers.com, Inc.	0.14ms from Amsterdam, NL
128.24.26.180	AS8075 Microsoft Corporation	0.33ms from Boydton, US
192.105.182.4	AS396905 HomeWorks Connect	0.53ms from Chicago, US
146.139.1.52	AS683 Argonne National Laboratory	2.27ms from Chicago, US
3.249.51.180	AS16509 Amazon.com, Inc.	0.14ms from Dublin, IE
132.164.167.180	AS8075 Microsoft Corporation	0.23ms from Dublin, IE
80.128.107.68	AS3320 Deutsche Telekom AG	5.34ms from Duesseldorf, DE
76.192.7.228	AS7018 AT&T Enterprises, LLC	3.88ms from Houston, US
190.186.49.68	AS25620 COTAS LTDA.	11.74ms from La Paz, BO
5.64.50.164	AS5607 Sky UK Limited	1.48ms from London, GB
79.26.153.180	AS3269 Telecom Italia S.p.A.	12.90ms from Milan, IT
195.170.59.4	AS8395 East Telecom Ltd.	1.27ms from Moscow, RU
71.45.7.100	AS33363 Charter Communications, Inc	14.36ms from Murfreesboro, US
172.254.179.228	AS12271 Charter Communications Inc	1.34ms from New York City, US
64.67.197.180	AS3737 PenTeleData Inc.	7.08ms from New York City, US
35.143.74.196	AS33363 Charter Communications, Inc	8.52ms from Orlando, US
58.80.85.180	AS17506 ARTERIA Networks Corporation	6.99ms from Osaka, JP
20.225.52.116	AS8075 Microsoft Corporation	0.19ms from San Antonio, US
71.198.136.68	AS7922 Comcast Cable Communications, LLC	7.38ms from San Jose, US
202.187.236.68	AS9930 TTNET-MY	2.86ms from Sepang, MY
77.78.23.20	AS8866 Vivacom Bulgaria EAD	6.23ms from Sofia, BG
64.137.90.52	AS150445 Getechbrothers	0.19ms from Tokyo, JP
91.137.32.68	AS196714 Thueringer Netkom GmbH	7.94ms from Berlin, DE
89.165.147.52	AS48161 NEXTGEN COMMUNICATIONS SRL	1.63ms from Bucharest, RO
217.197.183.36	AS20845 DIGI Tavkozlesi es Szolgaltato Kft.	1.34ms from Budapest, HU

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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