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 2,467 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 1074
78.156.158.194 novy-bor.cz 401
78.156.158.200 neratovice.cz 345
78.156.158.75 martin.sk 236
78.156.156.10 diamondshiny.com 121
78.156.158.74 polensko.cz 72
78.156.158.91 mesto-most.cz 69
78.156.143.203 hodikovi.xyz 39
78.156.158.93 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 obeczelechovice.cz 13
78.156.158.73 dortsacher.cz 11
78.156.157.3 jord.cz 11
78.156.158.197 jihlava-city.cz 10
78.156.156.43 optokon.cz 9
78.156.158.83 knihovnarudna.cz 9
78.156.128.12 optonet.cloud 7
78.156.149.7 jihlavskepodzemi.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

1,006 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
78.156.147.253 AS43542 OptoNet Communication, spol. s.r.o. 2.03ms from Prague, CZ
78.156.128.17 AS43542 OptoNet Communication, spol. s.r.o. 1.79ms from Prague, CZ
78.156.158.193 AS43542 OptoNet Communication, spol. s.r.o. 1.88ms from Prague, CZ
78.156.157.73 AS43542 OptoNet Communication, spol. s.r.o. 1.85ms from Prague, CZ
78.156.150.121 AS43542 OptoNet Communication, spol. s.r.o. 2.69ms from Prague, CZ
78.156.149.33 AS43542 OptoNet Communication, spol. s.r.o. 1.98ms from Prague, CZ
78.156.144.130 AS43542 OptoNet Communication, spol. s.r.o. 2.73ms from Prague, CZ
78.156.154.1 AS43542 OptoNet Communication, spol. s.r.o. 3.74ms from Prague, CZ
78.156.143.217 AS43542 OptoNet Communication, spol. s.r.o. 1.90ms from Prague, CZ
78.156.152.17 AS43542 OptoNet Communication, spol. s.r.o. 2.33ms from Prague, CZ
78.156.159.246 AS43542 OptoNet Communication, spol. s.r.o. 1.84ms from Prague, CZ
78.156.131.249 AS43542 OptoNet Communication, spol. s.r.o. 2.00ms from Prague, CZ
78.156.135.69 AS43542 OptoNet Communication, spol. s.r.o. 1.92ms from Prague, CZ
78.156.130.13 AS43542 OptoNet Communication, spol. s.r.o. 3.25ms from Prague, CZ
78.156.140.209 AS207945 CNI Group s.r.o. 1.86ms from Prague, CZ
78.156.155.68 AS43542 OptoNet Communication, spol. s.r.o. 1.89ms from Prague, CZ
78.156.156.10 AS43542 OptoNet Communication, spol. s.r.o. 1.86ms from Prague, CZ
78.156.133.1 AS43542 OptoNet Communication, spol. s.r.o. 1.79ms from Prague, CZ
78.156.137.5 AS43542 OptoNet Communication, spol. s.r.o. 1.83ms 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
23.24.118.211 AS7922 Comcast Cable Communications, LLC 6.35ms from Ashburn, US
188.173.214.131 AS48161 NEXTGEN COMMUNICATIONS SRL 8.24ms from Bucharest, RO
76.133.174.3 AS7922 Comcast Cable Communications, LLC 6.85ms from Fremont, US
39.35.133.19 AS17557 Pakistan Telecommunication Company Limited 12.84ms from Islamabad, PK
158.140.55.3 AS394972 Valley Electric Association 4.10ms from Las Vegas, US
99.9.136.227 AS7018 AT&T Enterprises, LLC 3.02ms from Los Angeles, US
216.239.185.131 AS23314 Summit Broadband 6.37ms from Miami, US
191.9.121.195 AS26599 TELEFÔNICA BRASIL S.A 8.56ms from Osasco, BR
44.196.143.83 AS14618 Amazon.com, Inc. 0.23ms from Reston, US
122.35.254.115 AS17858 LG POWERCOMM 7.30ms from Seoul, KR
47.107.186.131 AS37963 Hangzhou Alibaba Advertising Co.,Ltd. 0.15ms from Shenzhen, CN
202.239.189.131 AS2516 KDDI CORPORATION 1.27ms from Tokyo, JP
114.166.225.51 AS4713 NTT Communications Corporation 3.38ms from Tokyo, JP
157.30.1.3 AS400190 Freeport-McMoRan Inc. 0.24ms from Amsterdam, NL
142.111.78.115 AS7018 AT&T Enterprises, LLC 2.07ms from Ashburn, US
71.235.218.147 AS7922 Comcast Cable Communications, LLC 7.08ms from Boston, US
38.88.226.19 AS174 Cogent Communications, LLC 0.24ms from Chicago, US
24.14.228.195 AS7922 Comcast Cable Communications, LLC 5.62ms from Chicago, US
74.140.118.19 AS10796 Charter Communications Inc 16.37ms from Columbus, US
63.179.170.179 AS16509 Amazon.com, Inc. 0.17ms from Frankfurt am Main, DE
73.70.175.163 AS7922 Comcast Cable Communications, LLC 5.15ms from Fremont, US
14.238.2.147 AS45899 VNPT Corp 0.62ms from Hanoi, VN
18.166.235.227 AS16509 Amazon.com, Inc. 0.37ms from Hong Kong, HK
98.199.157.227 AS7922 Comcast Cable Communications, LLC 9.64ms from Houston, US
108.93.176.19 AS7018 AT&T Enterprises, LLC 5.92ms from Los Angeles, US

Traceroute

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

$
traceroute -a -n -q1 -m6 78.156.132.64
traceroute to 78.156.132.64 (78.156.132.64): 6 hops max, 52 byte packets
2 *
3 [] 201.16.2.155 102.099 ms
4 *
5 *
6 *
Measurement taken from IPinfo ProbeNet in Joao Pessoa, BR
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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