Autonomous System details

AS203365

Optet network, s. r. o.  ·  optet.cz

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AS203365 – Optet network, s. r. o.

Field Value
Country Czechia
Website optet.cz
Hosted domains 47
IPv4 addresses 1,024
IPv6 addresses 633,825,300,114,114,700,748,351,602,688
ASN type ISP
Registry ripe
Allocated 10 years ago on Feb 04, 2016
Updated 9 months ago on May 21, 2025
Netblock Company Num of IPs
185.136.196.0/22 Optet network, s. r. o. 1,024
Netblock Company
2a06:fe80::/29 Optet network, s. r. o.
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IP Ranges API

WHOIS Details


                                                ASHandle:       AS203365
                                                OrgID:          AS203365
                                                ASName:         AS203365
                                                ASNumber:       AS203365
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA

                                            
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Hosted Domains

There are 47 domain names hosted across 9 IP addresses on this ASN.

IP Address Domain Domains on this IP
185.136.199.238 ██████████ 33
185.136.199.237 ██████████ 4
185.136.199.198 ██████████ 3
185.136.199.13 ██████████ 2
185.136.199.236 ████████ 1
185.136.199.235 ██████████ 1
185.136.198.152 ██████████ 1
185.136.199.135 ██████████ 1
185.136.199.231 ██████████ 1

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Useful for Cybersecurity

Peers

There are 2 peers for this ASN.

Peers Name
AS202979 NGA Services, spol. s r.o.
AS28725 CETIN a.s.
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Upstreams

There are 2 upstreams for this ASN.

upstreams Name
AS202979 NGA Services, spol. s r.o.
AS28725 CETIN a.s.
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Downstreams

There are no downstreams for this ASN.

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Pingable IPs

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

IP Address ASN Details
185.136.199.1 AS203365 Optet network, s. r. o. 3.21ms from Prague, CZ
185.136.198.129 AS203365 Optet network, s. r. o. 3.20ms from Prague, CZ
185.136.196.1 AS203365 Optet network, s. r. o. 3.24ms 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
78.87.112.213 AS3329 VODAFONE-PANAFON HELLENIC TELECOMMUNICATIONS COMPANY SA 2.01ms from Athens, GR
45.91.214.85 AS31276 Die Netz-Werker Systemmanagement und Datennetze AG 0.83ms from Berlin, DE
35.94.40.181 AS16509 Amazon.com, Inc. 0.12ms from Boardman, US
87.51.168.229 AS3292 TDC Holding A/S 1.01ms from Copenhagen, DK
169.151.70.5 AS2386 AT&T Enterprises, LLC 1.89ms from Dallas, US
75.49.159.197 AS7018 AT&T Enterprises, LLC 16.46ms from Dallas, US
40.134.206.165 AS7029 Windstream Communications LLC 0.28ms from Dallas, US
79.217.164.5 AS3320 Deutsche Telekom AG 7.17ms from Frankfurt am Main, DE
80.248.246.181 AS16302 Suomi Communications Oy 0.34ms from Helsinki, FI
115.79.141.85 AS7552 Viettel Group 0.91ms from Ho Chi Minh City, VN
83.32.106.149 AS3352 TELEFONICA DE ESPANA S.A.U. 2.40ms from Madrid, ES
20.70.84.21 AS8075 Microsoft Corporation 0.52ms from Melbourne, AU
58.240.102.85 AS4837 CHINA UNICOM China169 Backbone 3.84ms from Nanjing, CN
187.51.201.181 AS10429 TELEFÔNICA BRASIL S.A 0.81ms from Osasco, BR
20.51.104.85 AS8075 Microsoft Corporation 0.35ms from Quincy, US
125.145.229.21 AS4766 Korea Telecom 6.00ms from Seoul, KR
43.134.161.37 AS132203 Tencent Building, Kejizhongyi Avenue 0.28ms from Singapore, SG
146.185.100.69 AS33873 Arvato Systems GmbH 8.18ms from Strasbourg, FR
13.55.58.229 AS16509 Amazon.com, Inc. 0.12ms from Sydney, AU
187.12.107.149 AS7738 V tal 0.55ms from São Paulo, BR
219.150.88.133 AS17638 ASN for TIANJIN Provincial Net of CT 3.63ms from Tianjin, CN
203.104.128.5 AS38631 LY Corporation 0.70ms from Tokyo, JP
217.96.140.197 AS5617 Orange Polska Spolka Akcyjna 6.27ms from Warsaw, PL
99.21.205.245 AS7018 AT&T Enterprises, LLC 12.02ms from Atlanta, US
80.98.248.69 AS21334 One Hungary Ltd. 10.81ms from Budapest, HU

Traceroute

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

$
traceroute -a -n -q1 -m5 185.136.197.243
traceroute to 185.136.197.243 (185.136.197.243): 5 hops max, 52 byte packets
3 *
4 *
5 *
Measurement taken from IPinfo ProbeNet in Warsaw, PL
On

Related Networks

What is an ASN?

Autonomous System Numbers (ASNs) are assigned to entities such as Internet Service Providers and other large organizations that control blocks of IP addresses. This network page, and the organization field that's shown on the main IP address information page and also returned in the geolocation API are based on the ASN.

The ASN details will often correspond to the IP address owner, but for smaller organizations it may be that organization's parent, or their ISP. Find out more about AS203365 at robtex.

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