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 2,465 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 patologove2025.cz 123
78.156.158.74 kladnobezpecne.cz 72
78.156.158.91 mesto-most.cz 69
78.156.143.203 sudujeme.cz 39
78.156.158.93 prokladno.cz 21
78.156.158.152 perito.eu 18
78.156.158.72 mujpruvodce.cz 17
78.156.135.74 retroservis.cz 16
78.156.158.71 obce.cz 12
78.156.158.73 obrazkovysvet.cz 11
78.156.157.3 jord.cz 11
78.156.158.197 jihlava-city.cz 10
78.156.156.43 qco.cz 9
78.156.158.83 firma-arkov.cz 9
78.156.128.12 optonet.cloud 7
78.156.149.7 zoojihlava.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
78.156.147.130 AS43542 OptoNet Communication, spol. s.r.o. 2.05ms from Prague, CZ
78.156.157.233 AS43542 OptoNet Communication, spol. s.r.o. 1.84ms 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
78.156.159.246 AS43542 OptoNet Communication, spol. s.r.o. 1.86ms from Prague, CZ
78.156.149.33 AS43542 OptoNet Communication, spol. s.r.o. 2.05ms 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
78.156.150.60 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
78.156.135.33 AS43542 OptoNet Communication, spol. s.r.o. 1.91ms from Prague, CZ
78.156.144.20 AS43542 OptoNet Communication, spol. s.r.o. 2.72ms from Prague, CZ
78.156.137.113 AS43542 OptoNet Communication, spol. s.r.o. 1.82ms from Prague, CZ
78.156.143.181 AS43542 OptoNet Communication, spol. s.r.o. 1.89ms from Prague, CZ
78.156.128.83 AS43542 OptoNet Communication, spol. s.r.o. 1.80ms from Prague, CZ
78.156.131.249 AS43542 OptoNet Communication, spol. s.r.o. 2.01ms from Prague, CZ
78.156.133.39 AS43542 OptoNet Communication, spol. s.r.o. 1.78ms from Prague, CZ
78.156.140.1 AS207945 CNI Group s.r.o. 1.84ms 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
157.30.1.3 AS400190 Freeport-McMoRan Inc. 0.35ms from Amsterdam, NL
23.24.118.211 AS7922 Comcast Cable Communications, LLC 6.56ms from Ashburn, US
101.25.86.19 AS4837 CHINA UNICOM China169 Backbone 6.06ms from Beijing, CN
99.101.178.163 AS7018 AT&T Enterprises, LLC 18.53ms from Chicago, US
47.184.5.195 AS5650 Frontier Communications of America, Inc. 2.13ms from Dallas, US
75.166.191.179 AS209 CenturyLink Communications, LLC 1.95ms from Denver, US
87.200.211.243 AS15802 Emirates Integrated Telecommunications Company PJSC 3.34ms from Dubai, AE
3.249.231.3 AS16509 Amazon.com, Inc. 0.15ms from Dublin, IE
51.138.184.163 AS8075 Microsoft Corporation 0.48ms from Dublin, IE
95.119.175.147 AS6805 Telefonica Germany GmbH & Co.OHG 2.47ms from Hamburg, DE
14.238.2.147 AS45899 VNPT Corp 0.66ms from Hanoi, VN
103.121.24.3 AS141395 NETELASTIC TECHNOLOGIES (PRIVATE) LIMITED 16.74ms from Karachi, PK
158.140.55.3 AS394972 Valley Electric Association 3.96ms from Las Vegas, US
216.229.11.35 AS7806 Binary Net, LLC 0.27ms from Lincoln, US
2.219.126.179 AS5607 Sky UK Limited 4.49ms from London, GB
114.19.240.3 AS2516 KDDI CORPORATION 3.17ms from Osaka, JP
183.180.165.3 AS2519 ARTERIA Networks Corporation 6.18ms from Osaka, JP
63.153.107.243 AS209 CenturyLink Communications, LLC 15.34ms from Seattle, US
125.31.178.67 AS18310 SK Broadband Co Ltd 6.00ms from Seoul, KR
175.246.213.67 AS4766 Korea Telecom 3.49ms from Seoul, KR
176.221.178.211 AS35805 JSC "Silknet" 4.75ms from Tbilisi, GE
71.230.131.99 AS7922 Comcast Cable Communications, LLC 9.74ms from Ashburn, US
44.254.100.3 AS16509 Amazon.com, Inc. 0.20ms from Boardman, US
136.30.124.51 AS19165 Webpass Inc. 0.64ms from Chicago, US
184.85.159.243 AS16625 Akamai Technologies, Inc. 0.41ms from Helsinki, FI

Traceroute

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

$
traceroute -a -n -q1 -m5 78.156.132.193
traceroute to 78.156.132.193 (78.156.132.193): 5 hops max, 52 byte packets
3 *
4 *
5 *
Measurement taken from IPinfo ProbeNet in Vilnius, LT
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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