178.72.224.0/19

AS41046 · O2 Czech Republic, a.s.

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Summary

Country	Czechia
Domain	o2.cz
ASN	AS41046
Parent Range	178.72.192.0/18
Registry	RIPE
ID	CZ-CZNET-20100318

WHOIS Details

inetnum:        178.72.192.0 - 178.72.255.255
netname:        CZ-CZNET-20100318
org:            ORG-STaN1-RIPE
country:        CZ
admin-c:        CZO2-RIPE
tech-c:         CZO2-RIPE
status:         ALLOCATED PA
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         AS5610-MTN
created:        2017-12-28T11:46:43Z
last-modified:  2024-06-20T15:31:27Z
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

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

route:          178.72.192.0/18
origin:         AS41046
mnt-by:         KTVTRINEC-MNT
created:        2018-03-26T08:32:02Z
last-modified:  2018-03-26T08:32:02Z
source:         RIPE

Overlapping Ranges

BGP prefixes that contain 178.72.224.0/19

Range	ASN	Company	Num of IPs
178.72.192.0/18	AS41046	O2 Czech Republic, a.s.	16,384

Nearby Ranges

BGP prefixes that overlap with 178.72.0.0/16

Range	ASN	Company	Num of IPs
178.72.64.0/18	AS8359	MTS PJSC	16,384
178.72.192.0/18	AS41046	O2 Czech Republic, a.s.	16,384
178.72.128.0/18	AS49505	JSC Selectel	16,384
178.72.32.0/19	AS203995	Lyse Tele AS	8,192
178.72.192.0/19	AS41046	DeCeTel s.r.o	8,192
178.72.104.0/21	AS48541	Comstar-R Broadband Users	2,048
178.72.16.0/21	AS3342	Cibicom A/S	2,048
178.72.68.0/22	AS8359	Tumen branch of PJSC MTS	1,024
178.72.4.0/22	AS213195	Teracom AB	1,024
178.72.100.0/22	AS41822	JSC Regional Technical Centre	1,024
178.72.84.0/22	AS41822	JSC Regional Technical Centre	1,024
178.72.92.0/23	AS41822	JSC Regional Technical Centre	512
178.72.95.0/24	AS41822	JSC Regional Technical Centre	256
178.72.94.0/24	AS41822	JSC Regional Technical Centre	256

Hosted domains

There are 56 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
178.72.224.168	dejmi.space	7
178.72.224.67	mantic.photos	6
178.72.246.202	loslex.cz	4
178.72.252.2	cabraboda.eu	3
178.72.244.144	fojtik.fun	3
178.72.233.66	nas-office.cz	3
178.72.224.235	hlinkaj.cz	2
178.72.224.212	rpavlik.cz	2
178.72.245.32	snoopinet.com	2
178.72.232.230	laponte.cz	2
178.72.224.2	draciostrava.cz	2
178.72.244.183	globalsystem.cz	1
178.72.252.102	snshld.net	1
178.72.224.157	dum-pojisteni.cz	1
178.72.247.162	ambg.eu	1
178.72.253.246	stepanovsky.org	1
178.72.242.19	danisek.cz	1
178.72.245.83	flexiblecomp.cz	1
178.72.242.220	tomovo.cz	1
178.72.246.194	stoklasovi.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

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

IP Address	ASN	Details
178.72.233.173	AS41046 O2 Czech Republic, a.s.	`6.64ms` from Prague, CZ
178.72.244.209	AS41046 O2 Czech Republic, a.s.	`1.05ms` from Prague, CZ
178.72.252.57	AS41046 O2 Czech Republic, a.s.	`5.73ms` from Prague, CZ
178.72.253.245	AS41046 O2 Czech Republic, a.s.	`5.43ms` from Prague, CZ
178.72.226.129	AS41046 O2 Czech Republic, a.s.	`0.68ms` from Prague, CZ
178.72.247.97	AS41046 O2 Czech Republic, a.s.	`6.25ms` from Prague, CZ
178.72.224.116	AS41046 O2 Czech Republic, a.s.	`6.29ms` from Prague, CZ
178.72.242.203	AS41046 O2 Czech Republic, a.s.	`6.31ms` from Prague, CZ
178.72.246.17	AS41046 O2 Czech Republic, a.s.	`6.24ms` from Prague, CZ
178.72.245.65	AS41046 O2 Czech Republic, a.s.	`6.26ms` from Prague, CZ
178.72.255.89	AS41046 O2 Czech Republic, a.s.	`6.71ms` from Prague, CZ
178.72.254.185	AS41046 O2 Czech Republic, a.s.	`5.80ms` 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
79.107.70.67	AS25472 Nova Telecommunications & Media Single Member S.A	`9.25ms` from Athens, GR
35.163.177.163	AS16509 Amazon.com, Inc.	`0.21ms` from Boardman, US
108.251.201.83	AS7018 AT&T Enterprises, LLC	`8.84ms` from Chicago, US
82.5.82.19	AS5089 Virgin Media Limited	`7.73ms` from London, GB
193.163.99.3	AS3215 Orange S.A.	`0.86ms` from Lyon, FR
121.164.231.227	AS4766 Korea Telecom	`2.05ms` from Seoul, KR
180.171.58.19	AS4812 China Telecom (Group)	`3.80ms` from Shanghai, CN
18.140.216.179	AS16509 Amazon.com, Inc.	`0.12ms` from Singapore, SG
171.126.191.35	AS4837 CHINA UNICOM China169 Backbone	`9.70ms` from Taiyuan, CN
212.135.208.3	AS216211 CYBERVERSE LLC	`0.23ms` from Tokyo, JP
206.204.135.3	AS15704 XTRA TELECOM S.A.	`4.34ms` from Valencia, ES
146.186.145.51	AS3999 The Pennsylvania State University	`9.61ms` from Ashburn, US
75.217.148.3	AS6167 Verizon Business	`16.82ms` from Dallas, US
73.229.179.67	AS7922 Comcast Cable Communications, LLC	`4.49ms` from Denver, US
141.209.23.35	AS27274 Central Michigan University	`4.48ms` from Detroit, US
90.212.106.195	AS5607 Sky UK Limited	`5.78ms` from Erith, GB
80.217.85.51	AS1257 Tele2 Sverige AB	`3.94ms` from Goeteborg, SE
154.194.254.131	AS134365 Ansheng Network Technology Co., Limited	`1.61ms` from Hong Kong, HK
188.28.73.99	AS206067 Hutchison 3G UK Limited	`8.93ms` from London, GB
79.132.76.131	AS136787 PacketHub S.A.	`0.17ms` from Milan, IT
94.233.8.163	AS12389 PJSC Rostelecom	`18.77ms` from Moscow, RU
126.92.124.131	AS17676 SoftBank Corp.	`3.55ms` from Osaka, JP
186.248.59.195	AS23106 AMERICAN TOWER DO BRASIL-COMUNICAÇÂO MULTIMÍDIA LT	`10.65ms` from Osasco, BR
186.207.243.67	AS28573 Claro NXT Telecomunicacoes Ltda	`11.05ms` from Osasco, BR
103.209.156.195	AS45352 IP ServerOne Solutions Sdn Bhd	`0.43ms` from Sepang, MY

Traceroute

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

traceroute -a -n -q1 -f5 178.72.252.249

traceroute to 178.72.252.249 (178.72.252.249): 64 hops max, 52 byte packets

5 [AS16246] 188.175.255.245 1.422 ms

6 *

7 [AS41046] 178.72.252.249 6.755 ms

Measurement taken from

IPinfo ProbeNet in Prague, CZ

On March 13th 2026

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