46.231.72.0/21

AS42908 · ORIGINAL AS CZ-NORDICTELECOMREGIONAL

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Summary

Country	Czechia
Domain	o2.cz
ASN	AS42908
Registry	RIPE
ID	CZ-CZNET-20110207

WHOIS Details

inetnum:        46.231.72.0 - 46.231.79.255
netname:        CZ-CZNET-20110207
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:          46.231.72.0/21
origin:         AS42908
mnt-by:         cz-libli-master
mnt-by:         mnt-nordictelecom
mnt-by:         AS5610-MTN
created:        2025-02-04T18:47:14Z
last-modified:  2025-04-01T10:31:58Z
source:         RIPE

Nearby Ranges

BGP prefixes that overlap with 46.231.0.0/16

Range	ASN	Company	Num of IPs
46.231.0.0/21	AS12338	ADW Europe SL	2,048
46.231.232.0/21	AS15726	MARCANT AG	2,048
46.231.56.0/21	AS21021	Multimedia Polska Sp. z o.o.	2,048
46.231.200.0/21	AS21069	METANET AG	2,048
46.231.160.0/21	AS25369	Hydra Communications Ltd	2,048
46.231.216.0/21	AS30781	Free Pro SAS	2,048
46.231.184.0/21	AS31727	Node4 Limited	2,048
46.231.112.0/21	AS34920	Team Blue Carrier Limited	2,048
46.231.152.0/21	AS34999	PRO INTERNET Sp. z o.o.	2,048
46.231.80.0/21	AS39647	Enreach Netherlands B.V.	2,048
46.231.120.0/21	AS42612	DinaHosting S.L.	2,048
46.231.176.0/21	AS48173	Orange Business Digital Germany GmbH	2,048
46.231.96.0/21	AS48304	Digmia s.r.o.	2,048
46.231.168.0/21	AS48475	Closed Joint Stock Company Oskolnet	2,048
46.231.144.0/21	AS50624	Outscale SASU	2,048
46.231.32.0/21	AS56376	ALIDA SRL	2,048
46.231.8.0/21	AS57099	Quickline Communications Limited	2,048
46.231.64.0/21	AS59395	Southern Communications Ltd	2,048
46.231.88.0/21	AS61157	PlusServer GmbH	2,048
46.231.52.0/22	AS209386	Sistemas Telematicos del Mediterraneo S.L.	1,024
46.231.244.0/22	AS201290	BlackGATE B.V.	1,024
46.231.48.0/22	AS210143	Lohnsteuerhilfe Bayern e.V.	1,024
46.231.227.0/24	AS39361	Yarcom LLC	256
46.231.229.0/24	AS39361	Yarcom LLC	256
46.231.26.0/24	AS60460	Aziende Italia S.r.l.	256
46.231.27.0/24	AS60460	Aziende Italia S.r.l.	256
46.231.123.0/24	AS42612	DinaHosting S.L.	256
46.231.125.0/24	AS42612	Dinahosting block 5 from net 46.231.120.0/21	256
46.231.28.0/24	AS60460	Aziende Italia S.r.l.	256
46.231.29.0/24	AS60460	Aziende Italia S.r.l.	256
46.231.30.0/24	AS60460	Aziende Italia S.r.l.	256
46.231.31.0/24	AS60460	Aziende Italia S.r.l.	256
46.231.192.0/24	AS198745	ALSO International Services GmbH	256
46.231.193.0/24	AS198745	ALSO International Services GmbH	256
46.231.194.0/24	AS198745	ALSO International Services GmbH	256
46.231.196.0/24	AS198745	ALSO International Services GmbH	256
46.231.230.0/24	AS200737	FOP Samoilovych Illia Mykolaiovych	256
46.231.225.0/24	AS209616	For PE Korotenko Artem Oleksandrovych	256
46.231.228.0/24	AS50576	FREEWAY Plus LLC	256
46.231.215.0/24	AS8492	Obit, Ltd.	256
46.231.255.0/24	AS21162	Innovative Solutions in Media (ISM) B.V.	256
46.231.226.0/24	AS212641	Incom Net Ltd	256
46.231.231.0/24	AS213752	LLC RED LINE TELECOM	256
46.231.224.0/24	AS214190	FOR FOP Voloshchuk Olesia Yurivna	256
46.231.208.0/24	AS8492	Obit, Ltd.	256
46.231.209.0/24	AS8492	Obit, Ltd.	256
46.231.185.0/24	AS31727	NCloud Customers	256
46.231.214.0/24	AS8492	Obit, Ltd.	256
46.231.24.0/24	AS60460	Aziende Italia S.r.l.	256

Hosted domains

There are 10 domain names hosted across 4 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
46.231.74.11	krasov.eu	7
46.231.72.72	kalida.cz	1
46.231.72.241	krmenidemonu.cz	1
46.231.79.189	instalaterstvi-tomis.cz	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

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

IP Address	ASN	Details
46.231.74.178	AS42908 ORIGINAL AS CZ-NORDICTELECOMREGIONAL	`7.93ms` from Prague, CZ
46.231.79.115	AS42908 ORIGINAL AS CZ-NORDICTELECOMREGIONAL	`8.22ms` from Prague, CZ
46.231.72.196	AS42908 ORIGINAL AS CZ-NORDICTELECOMREGIONAL	`4.83ms` from Prague, CZ
46.231.76.57	AS42908 ORIGINAL AS CZ-NORDICTELECOMREGIONAL	`0.87ms` from Prague, CZ
46.231.73.41	AS42908 ORIGINAL AS CZ-NORDICTELECOMREGIONAL	`0.87ms` from Prague, CZ
46.231.78.73	AS42908 ORIGINAL AS CZ-NORDICTELECOMREGIONAL	`0.89ms` from Prague, CZ
46.231.75.195	AS42908 ORIGINAL AS CZ-NORDICTELECOMREGIONAL	`6.32ms` from Prague, CZ
46.231.77.195	AS42908 ORIGINAL AS CZ-NORDICTELECOMREGIONAL	`6.54ms` 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
88.159.54.149	AS1136 KPN B.V.	`2.86ms` from Amsterdam, NL
66.248.0.21	AS7029 Windstream Communications LLC	`10.52ms` from Chicago, US
203.112.212.53	AS45588 Bangladesh Telecommunications Company Limited (BTCL), Nationwide PSTN Operator and Data and Internet Service Provider.	`4.26ms` from Dhaka, BD
93.217.221.229	AS3320 Deutsche Telekom AG	`7.85ms` from Duesseldorf, DE
217.235.48.85	AS3320 Deutsche Telekom AG	`2.30ms` from Duesseldorf, DE
176.163.143.213	AS5410 Bouygues Telecom SA	`6.81ms` from Frankfurt am Main, DE
217.24.236.53	AS9063 VSE NET GmbH	`3.34ms` from Frankfurt am Main, DE
202.192.151.5	AS4538 China Education and Research Network Center	`12.82ms` from Guangzhou, CN
81.154.125.165	AS2856 British Telecommunications PLC	`1.72ms` from London, GB
88.21.109.37	AS3352 TELEFONICA DE ESPANA S.A.U.	`10.18ms` from Madrid, ES
190.103.187.85	AS20080 Florida International University	`0.30ms` from Miami, US
65.220.125.245	AS701 Verizon Business	`1.03ms` from New York City, US
1.177.47.85	AS17577 LG HelloVision Corp.	`10.15ms` from Seoul, KR
141.164.54.21	AS20473 The Constant Company, LLC	`0.18ms` from Seoul, KR
115.16.159.85	AS4766 Korea Telecom	`8.47ms` from Seoul, KR
114.242.222.37	AS4808 China Unicom Beijing Province Network	`3.79ms` from Tianjin, CN
184.67.2.37	AS6327 Shaw Communications Inc.	`0.62ms` from Vancouver, CA
81.186.19.149	AS8248 Computer Technology Institute and Press Diophantus	`10.57ms` from Athens, GR
66.118.116.5	AS46231 Watch Communications	`6.52ms` from Columbus, US
158.41.242.149	AS1448 United Cooperative Services	`3.23ms` from Dallas, US
95.112.14.69	AS6805 Telefonica Germany GmbH & Co.OHG	`2.30ms` from Hamburg, DE
163.227.220.5	AS153863 PT BAHAGIA WYN BERSAMA	`14.75ms` from Jakarta, ID
89.206.181.229	AS8426 ClaraNET LTD	`1.08ms` from London, GB
95.63.175.117	AS12430 VODAFONE ESPANA S.A.U.	`3.55ms` from Madrid, ES
193.19.200.133	AS210218 Open Fiber S.P.A.	`1.10ms` from Milan, IT

Traceroute

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

traceroute -a -n -q1 46.231.73.225

traceroute to 46.231.73.225 (46.231.73.225): 64 hops max, 52 byte packets

1 [AS42473] 178.255.154.92 0.187 ms

2 *

3 [AS5610] 194.228.77.51 0.92 ms

4 [AS42908] 46.231.73.225 0.898 ms

Measurement taken from

IPinfo ProbeNet in Prague, CZ

On October 30th 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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