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
78.156.224.0/19 AS43574 PJSC Rostelecom 8,192
78.156.192.0/19 AS44034 Hi3G Access AB 8,192
78.156.0.0/19 AS41164 Telia Norge AS 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
78.156.64.0/20 AS8220 COLT Telecom 4,096
78.156.32.0/20 AS43507 Roudnice nad Labem 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 2,465 domain names hosted across 55 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 1066
78.156.158.194 novy-bor.cz 392
78.156.158.200 neratovice.cz 357
78.156.158.75 martin.sk 238
78.156.156.10 strazceponozek.cz 123
78.156.158.74 kladenske-fedrovani.cz 72
78.156.158.91 mesto-most.cz 69
78.156.143.203 hodikovi.xyz 39
78.156.158.93 wismo.cz 21
78.156.158.152 expodarky.cz 18
78.156.158.72 zdenekrysavy.cz 17
78.156.135.74 radiojournal.cz 16
78.156.158.71 jablonnevp.cz 12
78.156.158.73 tornero-ul.cz 11
78.156.157.3 nakivo.cz 11
78.156.158.197 jihlava-city.cz 10
78.156.156.43 optokonkable.com 9
78.156.158.83 knihovnarudna.cz 9
78.156.128.12 rekod.cz 7
78.156.149.7 hodsedozoo.cz 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

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

IP Address ASN Details
78.156.143.181 AS43542 OptoNet Communication, spol. s.r.o. 1.89ms from Prague, CZ
78.156.131.249 AS43542 OptoNet Communication, spol. s.r.o. 2.01ms from Prague, CZ
78.156.149.33 AS43542 OptoNet Communication, spol. s.r.o. 2.05ms from Prague, CZ
78.156.133.39 AS43542 OptoNet Communication, spol. s.r.o. 1.78ms from Prague, CZ
78.156.137.113 AS43542 OptoNet Communication, spol. s.r.o. 1.82ms from Prague, CZ
78.156.135.33 AS43542 OptoNet Communication, spol. s.r.o. 1.91ms from Prague, CZ
78.156.140.1 AS207945 CNI Group s.r.o. 1.84ms from Prague, CZ
78.156.150.60 AS43542 OptoNet Communication, spol. s.r.o. 2.70ms from Prague, CZ
78.156.152.17 AS43542 OptoNet Communication, spol. s.r.o. 2.29ms from Prague, CZ
78.156.159.246 AS43542 OptoNet Communication, spol. s.r.o. 1.86ms from Prague, CZ
78.156.128.83 AS43542 OptoNet Communication, spol. s.r.o. 1.80ms from Prague, CZ
78.156.147.130 AS43542 OptoNet Communication, spol. s.r.o. 2.05ms from Prague, CZ
78.156.158.189 AS43542 OptoNet Communication, spol. s.r.o. 1.88ms from Prague, CZ
78.156.156.10 AS43542 OptoNet Communication, spol. s.r.o. 1.83ms from Prague, CZ
78.156.157.233 AS43542 OptoNet Communication, spol. s.r.o. 1.84ms from Prague, CZ
78.156.155.2 AS43542 OptoNet Communication, spol. s.r.o. 1.91ms from Prague, CZ
78.156.154.1 AS43542 OptoNet Communication, spol. s.r.o. 4.05ms from Prague, CZ
78.156.144.20 AS43542 OptoNet Communication, spol. s.r.o. 2.72ms 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
79.173.201.3 AS8376 Jordan Data Communications Company LLC 1.06ms from Amman, JO
166.67.197.51 AS7046 Verizon Business 6.16ms from Ashburn, US
181.105.46.99 AS7303 Telecom Argentina S.A. 1.69ms from Buenos Aires, AR
73.45.247.131 AS7922 Comcast Cable Communications, LLC 5.32ms from Chicago, US
75.180.6.35 AS10796 Charter Communications Inc 13.03ms from Columbus, US
54.247.164.211 AS16509 Amazon.com, Inc. 0.19ms from Dublin, IE
8.134.233.51 AS37963 Hangzhou Alibaba Advertising Co.,Ltd. 0.08ms from Guangzhou, CN
153.92.140.51 AS44735 Nova hf 1.21ms from Hafnarfjoerdur, IS
123.21.21.51 AS45899 VNPT Corp 1.53ms from Ho Chi Minh City, VN
158.140.55.3 AS394972 Valley Electric Association 3.96ms from Las Vegas, US
94.167.142.83 AS1267 WIND TRE S.P.A. 9.90ms from Milan, IT
213.41.215.227 AS13193 KEYYO SA 1.44ms from Paris, FR
181.220.98.147 AS28573 Claro NXT Telecomunicacoes Ltda 17.28ms from Porto Alegre, BR
39.70.118.99 AS4837 CHINA UNICOM China169 Backbone 8.97ms from Qingdao, CN
52.249.60.195 AS8075 Microsoft Corporation 0.27ms from San Antonio, US
14.50.239.243 AS4766 Korea Telecom 3.73ms from Seoul, KR
39.119.152.131 AS9318 SK Broadband Co Ltd 4.41ms from Seoul, KR
141.163.193.19 AS16509 Amazon.com, Inc. 0.60ms from Sydney, AU
176.221.178.211 AS35805 JSC "Silknet" 4.75ms from Tbilisi, GE
202.239.189.131 AS2516 KDDI CORPORATION 1.14ms from Tokyo, JP
113.137.99.67 AS4134 CHINANET-BACKBONE 8.66ms from Xi'an, CN
98.229.134.35 AS7922 Comcast Cable Communications, LLC 7.32ms from Boston, US
80.99.132.115 AS21334 One Hungary Ltd. 6.75ms from Budapest, HU
185.224.16.131 AS205206 Netsite A/S 0.32ms from Copenhagen, DK
35.202.32.227 AS396982 Google LLC 0.12ms from Council Bluffs, US

Traceroute

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

$
traceroute -a -n -q1 -f2 -m7 78.156.134.13
traceroute to 78.156.134.13 (78.156.134.13): 7 hops max, 52 byte packets
3 *
5 *
6 *
7 *
Measurement taken from IPinfo ProbeNet in Hudiksvall, SE
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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