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
217.197.112.0/20	AS20655	e-Style ISP LLC	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
217.197.0.0/20	AS5495	Saint Petersburg State University	4,096
217.197.176.0/20	AS20845	DIGI Tavkozlesi es Szolgaltato Kft.	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
217.197.56.0/22	AS3301	Ide och ResursCentrum AB	1,024
217.197.164.0/22	AS41869	Blix Fiber	1,024
217.197.172.0/22	AS201776	Miranda-Media Ltd	1,024
217.197.60.0/22	AS3301	Local serviceprovider	1,024
217.197.162.0/24	AS212238	Think Huge Ltd	256
217.197.97.0/24	AS212552	Deployish Limited	256
217.197.111.0/24	AS29119	MISMELINK NETWORKS, SL	256
217.197.171.0/24	AS46450	Wired ISP Inc.	256
217.197.22.0/24	AS51487	DONNALIVE	256
217.197.29.0/24	AS51487	ISP MOLINA	256
217.197.30.0/24	AS51487	DONNA LIVE S.COOP.	256
217.197.108.0/24	AS59877	VA TELECOM SAS	256
217.197.170.0/24	AS6079	Wired ISP Inc.	256
217.197.54.0/24	AS1257	Ljungby Energi AB Box 262 341 25 Ljungby	256
217.197.169.0/24	AS7015	Wired ISP Inc.	256
217.197.109.0/24	AS197883	Serinya Telecom SAS	256
217.197.110.0/24	AS198126	LG-NET SAS	256
217.197.105.0/24	AS199793	Bank Eskhata OJSC	256
217.197.163.0/24	AS199967	Think Huge Ltd	256
217.197.102.0/24	AS201990	Jakub Bartlomiej Osuch trading as Techgroup	256
217.197.103.0/24	AS203020	truview LLC	256
217.197.106.0/24	AS204471	2S Computers SRL	256
217.197.100.0/24	AS205219	WISP.ONE S.R.L.	256
217.197.107.0/24	AS210644	ROST LLC	256
217.197.98.0/24	AS211611	Exim Host SRL	256
217.197.160.0/24	AS212238	Think Huge Ltd	256
217.197.161.0/24	AS212238	Think Huge Ltd	256

Hosted domains

There are 74 domain names hosted across 26 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	ceskepivo.com	12
217.197.152.168	lanovky.net	10
217.197.159.36	sukm.cz	9
217.197.154.34	zaluzie-hulin.cz	9
217.197.159.38	utulekkromeriz.cz	3
217.197.152.130	elkoep.eu	3
217.197.152.33	pneuform.cz	3
217.197.157.238	ux.cz	3
217.197.154.27	nanofolie.sk	2
217.197.148.9	vipadvokati.cz	2
217.197.144.137	mojekuze.cz	2
217.197.158.116	coptel.cz	2
217.197.159.40	socialnisluzbykm.cz	1
217.197.159.39	skolahroukromeriz.cz	1
217.197.154.143	zahradni-architektura.cz	1
217.197.159.74	gkm.cz	1
217.197.152.172	altivar.cz	1
217.197.148.82	ddmax.cz	1
217.197.149.135	dolezel.org	1
217.197.152.163	aukcerealit.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

Read more

Pingable IPs

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

IP Address	ASN	Details
217.197.159.2	AS42908 ORIGINAL AS CZ-NORDICTELECOMREGIONAL	`5.69ms` from Prague, CZ
217.197.156.1	AS42908 ORIGINAL AS CZ-NORDICTELECOMREGIONAL	`0.68ms` from Prague, CZ
217.197.147.1	AS42908 ORIGINAL AS CZ-NORDICTELECOMREGIONAL	`0.89ms` from Prague, CZ
217.197.151.173	AS42908 ORIGINAL AS CZ-NORDICTELECOMREGIONAL	`0.85ms` from Prague, CZ
217.197.154.49	AS42908 ORIGINAL AS CZ-NORDICTELECOMREGIONAL	`0.88ms` from Prague, CZ
217.197.145.1	AS42908 ORIGINAL AS CZ-NORDICTELECOMREGIONAL	`0.86ms` from Prague, CZ
217.197.158.17	AS42908 ORIGINAL AS CZ-NORDICTELECOMREGIONAL	`0.84ms` from Prague, CZ
217.197.144.129	AS42908 ORIGINAL AS CZ-NORDICTELECOMREGIONAL	`0.87ms` from Prague, CZ
217.197.157.237	AS42908 ORIGINAL AS CZ-NORDICTELECOMREGIONAL	`0.86ms` from Prague, CZ
217.197.155.129	AS42908 ORIGINAL AS CZ-NORDICTELECOMREGIONAL	`6.58ms` 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
112.35.161.180	AS9808 China Mobile Communications Group Co., Ltd.	`2.03ms` from Beijing, CN
186.170.234.148	AS3816 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC	`3.27ms` from Bogota, CO
34.107.61.36	AS396982 Google LLC	`0.10ms` from Frankfurt am Main, DE
167.99.118.4	AS14061 DigitalOcean, LLC	`0.39ms` from New York City, US
170.82.49.132	AS266438 GNS FIBRA	`0.62ms` from Porto Alegre, BR
62.129.202.100	AS12824 home.pl sp. z o.o.	`1.21ms` from Warsaw, PL
62.4.14.228	AS12876 SCALEWAY S.A.S.	`0.27ms` from Amsterdam, NL
73.219.172.164	AS7922 Comcast Cable Communications, LLC	`12.41ms` from Boston, US
104.199.161.4	AS396982 Google LLC	`0.15ms` from Chang-hua, TW
84.149.48.52	AS3320 Deutsche Telekom AG	`4.93ms` from Frankfurt am Main, DE
86.1.67.84	AS5089 Virgin Media Limited	`4.05ms` from London, GB
194.243.110.36	AS3269 Telecom Italia S.p.A.	`5.38ms` from Milan, IT
174.89.215.20	AS577 Bell Canada	`1.91ms` from Montreal, CA
60.145.147.36	AS17676 SoftBank Corp.	`4.01ms` from Osaka, JP
151.69.202.36	AS1267 WIND TRE S.P.A.	`2.64ms` from Rome, IT
177.77.155.164	AS26599 TELEFÔNICA BRASIL S.A	`12.17ms` from Sao Paulo, BR
75.213.89.196	AS6167 Verizon Business	`11.02ms` from Seattle, US
116.220.110.212	AS9824 JCOM Co., Ltd.	`9.83ms` from Tokyo, JP
206.253.141.148	AS21949 Beanfield Technologies Inc.	`0.47ms` from Toronto, CA
136.146.14.132	AS14340 Salesforce.com, Inc.	`0.51ms` from Ashburn, US
89.165.147.52	AS48161 NEXTGEN COMMUNICATIONS SRL	`1.49ms` from Bucharest, RO
23.202.191.212	AS16625 Akamai Technologies, Inc.	`0.70ms` from Chicago, US
204.156.69.4	AS35950 Volvo Group North America, Inc.	`3.75ms` from Durham, US
178.6.139.100	AS3209 Vodafone GmbH	`11.13ms` from Frankfurt am Main, DE
180.219.47.52	AS17924 SmarTone Mobile Communications Ltd	`16.12ms` from Hong Kong, HK

Traceroute

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

traceroute -a -n -q1 -f8 -m11 217.197.152.0

traceroute to 217.197.152.0 (217.197.152.0): 11 hops max, 52 byte packets

8 [AS6453] 180.87.38.5 12.416 ms

9 *

10 *

11 *

Measurement taken from

IPinfo ProbeNet in Indore, IN

On February 7th 2026

What are IP address ranges?

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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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