1. All IP Ranges
  2. 78.0.0.0/8
  3. 78.156.0.0/16
  4. AS43542  | 78.156.128.0/19

78.156.128.0/19

AS43542  ·  OptoNet Communication, spol. s.r.o.

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Summary

Country Czechia
Domain optonet.cz
ASN AS43542
Registry RIPE
ID CZ-OPTONET-20070816

WHOIS Details

inetnum:        78.156.128.0 - 78.156.159.255
netname:        CZ-OPTONET-20070816
country:        CZ
org:            ORG-OCLS3-RIPE
admin-c:        TJ1042-RIPE
tech-c:         TJ1042-RIPE
status:         ALLOCATED PA
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         MNT-OPTONET
mnt-routes:     MNT-OPTONET
notify:         tichy@optonet.cz
created:        2007-08-16T15:09:40Z
last-modified:  2016-12-20T09:17:11Z
source:         RIPE
abuse-email:    abuse@optonet.cz
abuse-c:        AOC17-RIPE
abuse-org:      ORG-OCLS3-RIPE

organisation:   ORG-OCLS3-RIPE
org-name:       OptoNet Communication, spol. s.r.o.
country:        CZ
org-type:       LIR
address:        Cerveny Kriz 318
address:        586 01
address:        Jihlava
address:        CZECH REPUBLIC
phone:          +420564040152
fax-no:         +420564040134
admin-c:        TJ1042-RIPE
mnt-ref:        RIPE-NCC-HM-MNT
mnt-ref:        MNT-OPTONET
mnt-ref:        MNT-OPTONET_JT
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         MNT-OPTONET
e-mail:         prosecky@optonet.cz
abuse-c:        AOC17-RIPE
created:        2006-09-25T15:28:01Z
last-modified:  2022-12-02T13:59:08Z
source:         RIPE
abuse-email:    abuse@optonet.cz
abuse-c:        AOC17-RIPE
abuse-org:      undefined

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 are contained by 78.156.128.0/19

Range ASN Company Num of IPs
78.156.140.0/24 AS207945 Ceska opticka sit 256

Nearby Ranges

BGP prefixes that overlap with 78.156.0.0/16

Range ASN Company Num of IPs
78.156.96.0/19 AS39642 Sinal A/S 8,192
78.156.192.0/19 AS44034 Hi3G Access AB 8,192
78.156.224.0/19 AS43574 PJSC Rostelecom 8,192
78.156.32.0/19 AS43507 RETE internet, s.r.o. 8,192
78.156.0.0/19 AS41164 Telia Norge AS 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
78.156.8.0/21 AS41164 Get FTTx Customers 2,048
78.156.140.0/24 AS207945 Ceska opticka sit 256

Hosted domains

There are 2,463 domain names hosted across 56 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
78.156.158.199 bohdanec.cz 1073
78.156.158.194 novy-bor.cz 400
78.156.158.200 neratovice.cz 341
78.156.158.75 martin.sk 235
78.156.156.10 journalplus.cz 121
78.156.158.74 kladenske-fedrovani.cz 72
78.156.158.91 mesto-most.cz 69
78.156.143.203 visonet.cz 39
78.156.158.93 mobilita-kladno.cz 21
78.156.158.152 komfortdoma.cz 18
78.156.158.72 zuspetrzalka.sk 17
78.156.135.74 bazarumedveda.cz 16
78.156.158.71 mutrmice.cz 13
78.156.157.3 jord.cz 11
78.156.158.73 dortsacher.cz 11
78.156.158.197 jihlava-city.cz 10
78.156.156.43 optokon.cz 9
78.156.158.83 tuza.cz 9
78.156.128.12 optonet.cloud 7
78.156.149.7 zoojihlava.eu 7

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

1,024 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
78.156.155.66 AS43542 OptoNet Communication, spol. s.r.o. 1.91ms from Prague, CZ
78.156.144.150 AS43542 OptoNet Communication, spol. s.r.o. 2.73ms from Prague, CZ
78.156.147.236 AS43542 OptoNet Communication, spol. s.r.o. 1.97ms from Prague, CZ
78.156.143.185 AS43542 OptoNet Communication, spol. s.r.o. 1.88ms from Prague, CZ
78.156.130.97 AS43542 OptoNet Communication, spol. s.r.o. 2.72ms from Prague, CZ
78.156.131.249 AS43542 OptoNet Communication, spol. s.r.o. 2.03ms from Prague, CZ
78.156.158.193 AS43542 OptoNet Communication, spol. s.r.o. 1.86ms from Prague, CZ
78.156.137.125 AS43542 OptoNet Communication, spol. s.r.o. 1.84ms from Prague, CZ
78.156.149.33 AS43542 OptoNet Communication, spol. s.r.o. 2.03ms from Prague, CZ
78.156.159.246 AS43542 OptoNet Communication, spol. s.r.o. 1.83ms from Prague, CZ
78.156.157.73 AS43542 OptoNet Communication, spol. s.r.o. 1.83ms from Prague, CZ
78.156.150.121 AS43542 OptoNet Communication, spol. s.r.o. 2.71ms from Prague, CZ
78.156.154.1 AS43542 OptoNet Communication, spol. s.r.o. 3.96ms from Prague, CZ
78.156.128.17 AS43542 OptoNet Communication, spol. s.r.o. 1.79ms from Prague, CZ
78.156.152.17 AS43542 OptoNet Communication, spol. s.r.o. 2.35ms from Prague, CZ
78.156.135.65 AS43542 OptoNet Communication, spol. s.r.o. 1.92ms from Prague, CZ
78.156.129.225 AS43542 OptoNet Communication, spol. s.r.o. 2.73ms from Prague, CZ
78.156.140.225 AS207945 CNI Group s.r.o. 1.85ms from Prague, CZ
78.156.133.39 AS43542 OptoNet Communication, spol. s.r.o. 1.79ms from Prague, CZ
78.156.156.94 AS43542 OptoNet Communication, spol. s.r.o. 1.87ms 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
37.150.202.147 AS9198 JSC Kazakhtelecom 9.62ms from Almaty, KZ
20.8.41.147 AS8075 Microsoft Corporation 0.19ms from Amsterdam, NL
172.214.91.99 AS8075 Microsoft Corporation 1.37ms from Ashburn, US
185.211.24.51 AS34177 CELESTE SAS 15.83ms from Aubervilliers, FR
84.36.93.3 AS36992 ETISALAT MISR 10.16ms from Cairo, EG
41.87.202.51 AS37315 Cipherwave 0.92ms from Cape Town, ZA
98.121.86.211 AS11426 Charter Communications Inc 7.96ms from Charlotte, US
165.140.53.3 AS395742 The Brookfield Group, LLC. 5.86ms from Chicago, US
97.135.124.195 AS6167 Verizon Business 12.33ms from Chicago, US
76.112.3.35 AS7922 Comcast Cable Communications, LLC 8.72ms from Flint, US
42.7.185.67 AS4837 CHINA UNICOM China169 Backbone 10.06ms from Liaoyang, CN
217.33.2.179 AS2856 British Telecommunications PLC 2.96ms from London, GB
46.37.165.243 AS61323 ANS ACADEMY LIMITED 0.48ms from Manchester, GB
162.225.18.51 AS7018 AT&T Enterprises, LLC 2.39ms from Miami, US
109.161.5.131 AS12389 PJSC Rostelecom 16.92ms from Moscow, RU
211.17.10.3 AS4713 NTT Communications Corporation 5.25ms from Osaka, JP
195.101.128.227 AS3215 Orange S.A. 4.30ms from Paris, FR
71.238.75.147 AS7922 Comcast Cable Communications, LLC 5.42ms from Portland, US
44.211.14.67 AS14618 Amazon.com, Inc. 0.21ms from Reston, US
76.28.139.243 AS7922 Comcast Cable Communications, LLC 4.44ms from Seattle, US
61.88.124.163 AS7474 SingTel Optus Pty Ltd 8.68ms from Sydney, AU
114.40.20.67 AS3462 Data Communication Business Group 4.74ms from Taichung, TW
140.114.226.51 AS18047 National Tsing-Hua University 2.57ms from Taipei, TW
94.52.12.3 AS48161 NEXTGEN COMMUNICATIONS SRL 5.13ms from Timisoara, RO
156.249.19.227 AS44559 IT HOSTLINE LTD 0.21ms 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 -f3 -m8 78.156.138.220
traceroute to 78.156.138.220 (78.156.138.220): 8 hops max, 52 byte packets
3 [AS749] 11.88.174.49 1.003 ms
4 [] 117.49.34.189 0.983 ms
5 [] 117.49.34.226 8.169 ms
6 *
7 *
8 *
Measurement taken from IPinfo ProbeNet in Jining, CN
On

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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