178.72.192.0/18

AS41046 · O2 Czech Republic, a.s.

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Summary

Country	Czechia
Domain	o2.cz
ASN	AS41046
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 are contained by 178.72.192.0/18

Range	ASN	Company	Num of IPs
178.72.192.0/19	AS41046	DeCeTel s.r.o	8,192

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
178.72.128.0/18	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
178.72.16.0/21	AS3342	Cibicom A/S	2,048
178.72.104.0/21	AS48541	Comstar-R Broadband Users	2,048
178.72.100.0/22	AS41822	JSC Regional Technical Centre	1,024
178.72.84.0/22	AS41822	JSC Regional Technical Centre	1,024
178.72.4.0/22	AS213195	Teracom AB	1,024
178.72.92.0/23	AS41822	JSC Regional Technical Centre	512
178.72.94.0/24	AS41822	JSC Regional Technical Centre	256
178.72.95.0/24	AS41822	JSC Regional Technical Centre	256

Hosted domains

There are 87 domain names hosted across 48 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
178.72.223.142	rabcan.cz	7
178.72.246.202	varak.net	4
178.72.196.198	plchsystems.cz	4
178.72.244.144	fojtik.wtf	3
178.72.233.66	mychoyce.shop	3
178.72.223.87	komoras.cz	2
178.72.196.17	genog.info	2
178.72.224.2	osmak-degu.cz	2
178.72.232.230	lubena.eu	2
178.72.245.32	snoopinet.com	2
178.72.224.235	svj934.cz	2
178.72.206.36	particum.cz	2
178.72.206.34	pmse.cz	1
178.72.196.75	kngz.tech	1
178.72.247.162	ambg.eu	1
178.72.196.222	monitor-monster.com	1
178.72.247.218	lightningdonate.com	1
178.72.252.102	snshld.net	1
178.72.246.194	stoklasovi.eu	1
178.72.200.71	cech-tym.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

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

IP Address	ASN	Details
178.72.254.185	AS41046 O2 Czech Republic, a.s.	`5.70ms` from Prague, CZ
178.72.203.1	AS41046 O2 Czech Republic, a.s.	`1.00ms` from Prague, CZ
178.72.253.210	AS41046 O2 Czech Republic, a.s.	`5.54ms` from Prague, CZ
178.72.233.172	AS41046 O2 Czech Republic, a.s.	`6.69ms` from Prague, CZ
178.72.193.33	AS41046 O2 Czech Republic, a.s.	`1.11ms` from Prague, CZ
178.72.213.129	AS41046 O2 Czech Republic, a.s.	`0.64ms` from Prague, CZ
178.72.206.129	AS41046 O2 Czech Republic, a.s.	`2.10ms` from Prague, CZ
178.72.255.57	AS41046 O2 Czech Republic, a.s.	`6.66ms` from Prague, CZ
178.72.242.203	AS41046 O2 Czech Republic, a.s.	`6.35ms` from Prague, CZ
178.72.195.1	AS41046 O2 Czech Republic, a.s.	`0.82ms` from Prague, CZ
178.72.252.113	AS41046 O2 Czech Republic, a.s.	`5.67ms` from Prague, CZ
178.72.244.209	AS41046 O2 Czech Republic, a.s.	`0.97ms` from Prague, CZ
178.72.196.32	AS41046 O2 Czech Republic, a.s.	`3.76ms` from Prague, CZ
178.72.245.73	AS41046 O2 Czech Republic, a.s.	`6.22ms` from Prague, CZ
178.72.200.63	AS41046 O2 Czech Republic, a.s.	`3.26ms` from Prague, CZ
178.72.223.73	AS41046 O2 Czech Republic, a.s.	`6.28ms` from Prague, CZ
178.72.205.65	AS41046 O2 Czech Republic, a.s.	`0.65ms` from Prague, CZ
178.72.194.65	AS41046 O2 Czech Republic, a.s.	`0.64ms` from Prague, CZ
178.72.222.129	AS41046 O2 Czech Republic, a.s.	`6.24ms` from Prague, CZ
178.72.247.97	AS41046 O2 Czech Republic, a.s.	`6.22ms` from Prague, CZ
178.72.207.25	AS41046 O2 Czech Republic, a.s.	`0.87ms` from Prague, CZ
178.72.192.1	AS41046 O2 Czech Republic, a.s.	`6.37ms` from Prague, CZ
178.72.197.190	AS41046 O2 Czech Republic, a.s.	`2.66ms` from Prague, CZ
178.72.226.1	AS41046 O2 Czech Republic, a.s.	`0.67ms` from Prague, CZ
178.72.246.121	AS41046 O2 Czech Republic, a.s.	`6.22ms` 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
13.223.93.66	AS14618 Amazon.com, Inc.	`0.77ms` from Ashburn, US
98.169.154.34	AS22773 Cox Communications Inc.	`4.07ms` from Ashburn, US
117.213.34.66	AS9829 National Internet Backbone	`17.12ms` from Chennai, IN
192.236.0.242	AS393238 ImOn Communications, LLC	`4.77ms` from Chicago, US
31.31.26.242	AS1547 INTERDNESTRKOM, Sovmestnoe Zakrytoe Aktsionernoe Obshchestvo	`2.00ms` from Chisinau, MD
14.165.108.98	AS45899 VNPT Corp	`2.30ms` from Da Nang, VN
103.119.196.2	AS140165 Realnet Telecom Pvt Ltd	`0.19ms` from Delhi, IN
91.53.164.162	AS3320 Deutsche Telekom AG	`5.73ms` from Frankfurt am Main, DE
119.182.179.130	AS4837 CHINA UNICOM China169 Backbone	`4.42ms` from Jinan, CN
210.187.84.114	AS4788 TM TECHNOLOGY SERVICES SDN. BHD.	`1.19ms` from Kuala Lumpur, MY
66.113.79.162	AS23308 UTILITY TELEPHONE, INC.	`0.42ms` from Los Angeles, US
64.27.42.162	AS25843 EvolveIP, LLC	`6.25ms` from Los Angeles, US
46.243.254.2	AS208825 REDLINE OOO	`0.30ms` from Moscow, RU
104.229.132.210	AS11351 Charter Communications Inc	`16.94ms` from New York City, US
38.108.234.210	AS174 Cogent Communications, LLC	`0.74ms` from New York City, US
47.17.191.50	AS6128 Cablevision Systems Corp.	`9.07ms` from New York City, US
69.30.32.34	AS6423 Digital Fortress	`0.58ms` from Portland, US
220.89.85.226	AS4766 Korea Telecom	`4.66ms` from Seoul, KR
202.121.96.146	AS4538 China Education and Research Network Center	`1.88ms` from Shanghai, CN
46.245.93.146	AS43754 Asiatech Data Transmission company	`14.93ms` from Yerevan, AM
107.13.188.2	AS11426 Charter Communications Inc	`11.79ms` from Ashburn, US
38.142.7.98	AS174 Cogent Communications, LLC	`0.21ms` from Ashburn, US
65.114.164.82	AS209 CenturyLink Communications, LLC	`6.37ms` from Ashburn, US
157.253.73.2	AS3603 University de Los Andes	`1.35ms` from Bogota, CO
41.65.64.130	AS36992 ETISALAT MISR	`7.67ms` from Cairo, EG

Traceroute

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

traceroute -a -n -q1 -f2 178.72.223.241

traceroute to 178.72.223.241 (178.72.223.241): 64 hops max, 52 byte packets

2 [AS29134] 217.31.48.15 0.315 ms

3 *

4 *

5 *

6 [AS16246] 188.175.254.236 1.106 ms

7 *

8 [AS41046] 178.72.223.241 8.468 ms

Measurement taken from

IPinfo ProbeNet in Prague, CZ

On December 28th 2025

What are IP address ranges?

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