78.156.140.0/24

AS207945 · CNI Group s.r.o.

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Summary

Country	Czechia
Domain	ceskaoptickasit.cz
ASN	AS207945
Parent Range	78.156.128.0/19
Registry	RIPE
ID	CZ-CESKA_OPTICKA_SIT-ON

WHOIS Details

inetnum:        78.156.140.0 - 78.156.140.255
netname:        CZ-CESKA_OPTICKA_SIT-ON
descr:          Ceska opticka sit
country:        CZ
admin-c:        TJ1042-RIPE
tech-c:         TJ1042-RIPE
status:         ASSIGNED PA
mnt-by:         MNT-OPTONET
created:        2008-06-24T18:39:29Z
last-modified:  2016-06-28T01:59:27Z
source:         RIPE
abuse-email:    abuse@optonet.cz
abuse-c:        AOC17-RIPE
abuse-org:      ORG-OCLS3-RIPE

person:         Tichy Josef
address:        OptoNet Communication, spol. s r.o.
address:        Cerveny Kriz 250
address:        568 02 Jihlava
address:        Czech republic
phone:          +420564040133
e-mail:         tichy@optonet.cz
nic-hdl:        TJ1042-RIPE
mnt-by:         MNT-OPTONET_JT
created:        2007-08-06T07:09:45Z
last-modified:  2017-10-30T21:56:13Z
source:         RIPE

route:          78.156.128.0/19
descr:          CZ-OPTONET-20070816
origin:         AS43542
mnt-by:         MNT-OPTONET
created:        2007-09-13T11:21:05Z
last-modified:  2007-09-13T11:21:05Z
source:         RIPE

Overlapping Ranges

BGP prefixes that contain 78.156.140.0/24

Range	ASN	Company	Num of IPs
78.156.128.0/19	AS43542	OptoNet Communication, spol. s.r.o.	8,192

Nearby Ranges

BGP prefixes that overlap with 78.156.0.0/16

Range	ASN	Company	Num of IPs
78.156.224.0/19	AS43574	PJSC Rostelecom	8,192
78.156.192.0/19	AS44034	Hi3G Access AB	8,192
78.156.96.0/19	AS39642	Sinal A/S	8,192
78.156.32.0/19	AS43507	RETE internet, s.r.o.	8,192
78.156.0.0/19	AS25400	Telia Norge AS	8,192
78.156.128.0/19	AS43542	OptoNet Communication, spol. s.r.o.	8,192
78.156.32.0/20	AS43507	Roudnice nad Labem	4,096
78.156.64.0/20	AS8220	COLT Telecom	4,096
78.156.80.0/21	AS8220	COLT Technology	2,048

Hosted domains

There are 14 domain names hosted across 5 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
78.156.140.148	softcon.cz	5
78.156.140.195	pisenopevnine.cz	4
78.156.140.84	jisr-institute.cz	2
78.156.140.65	lepart.cz	2
78.156.140.132	ceskydisk.cz	1

Hosted domains API

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Useful for Cybersecurity

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Pingable IPs

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

IP Address	ASN	Details
78.156.140.201	AS207945 CNI Group s.r.o.	`1.85ms` 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
197.53.145.248	AS8452 TE-AS	`7.50ms` from Cairo, EG
98.121.176.248	AS11426 Charter Communications Inc	`13.39ms` from Charlotte, US
172.73.105.168	AS11426 Charter Communications Inc	`5.53ms` from Charlotte, US
217.231.186.24	AS3320 Deutsche Telekom AG	`9.51ms` from Frankfurt am Main, DE
166.204.98.40	AS20057 AT&T Enterprises, LLC	`3.89ms` from Fremont, US
198.110.213.72	AS237 Merit Network Inc.	`11.78ms` from Grand Rapids, US
156.247.114.56	AS9294 GNET INC.	`0.87ms` from Hong Kong, HK
89.197.115.72	AS47474 Virtual1 Limited	`0.92ms` from London, GB
68.224.201.120	AS22773 Cox Communications Inc.	`8.40ms` from Providence, US
59.21.40.88	AS4766 Korea Telecom	`6.69ms` from Seoul, KR
114.80.221.248	AS4811 China Telecom (Group)	`3.47ms` from Shanghai, CN
210.193.228.152	AS17477 Macquarie Technology Operations Pty Limited	`0.61ms` from Sydney, AU
113.237.214.104	AS4837 CHINA UNICOM China169 Backbone	`8.16ms` from Tieling, CN
74.176.54.184	AS8075 Microsoft Corporation	`0.14ms` from Tokyo, JP
73.159.216.40	AS7922 Comcast Cable Communications, LLC	`11.80ms` from Boston, US
174.103.181.200	AS10796 Charter Communications Inc	`4.44ms` from Chicago, US
97.243.27.216	AS6167 Verizon Business	`14.21ms` from Chicago, US
150.221.181.136	AS11427 Charter Communications Inc	`5.11ms` from Dallas, US
46.242.119.216	AS42610 PJSC Rostelecom	`1.08ms` from Moscow, RU
159.41.187.136	AS8011 MongoDB, Inc.	`0.10ms` from Mumbai, IN
68.129.68.88	AS701 Verizon Business	`2.20ms` from New York City, US
180.4.83.56	AS4713 NTT DOCOMO BUSINESS,Inc.	`7.21ms` from Osaka, JP
49.27.231.136	AS4766 Korea Telecom	`7.92ms` from Seoul, KR
220.243.154.136	AS23724 IDC, China Telecommunications Corporation	`2.77ms` from Tianjin, CN
150.241.217.200	AS20473 The Constant Company, LLC	`0.10ms` from Tokyo, JP

Traceroute

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

traceroute -a -n -q1 -f2 78.156.140.225

traceroute to 78.156.140.225 (78.156.140.225): 64 hops max, 52 byte packets

2 [] 91.210.17.48 5.052 ms

3 [AS43542] 78.156.128.83 1.909 ms

4 [AS207945] 78.156.140.225 1.869 ms

Measurement taken from

IPinfo ProbeNet in Prague, CZ

On February 7th 2026

What are IP address ranges?

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