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 8 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
185.136.199.135 ██████████ 1
185.136.199.235 ██████████ 1
185.136.198.152 ██████████ 1
185.136.199.236 ████████ 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
185.136.198.65 AS203365 Optet network, s. r. o. 3.21ms from Prague, CZ
185.136.199.1 AS203365 Optet network, s. r. o. 3.20ms from Prague, CZ
185.136.196.1 AS203365 Optet network, s. r. o. 3.21ms 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
205.173.181.21 AS3599 CDW Technologies LLC 0.47ms from Chicago, US
103.152.229.21 AS140887 Mercantile Bank Limited 0.85ms from Dhaka, BD
93.197.123.197 AS3320 Deutsche Telekom AG 4.17ms from Frankfurt am Main, DE
75.46.224.165 AS7018 AT&T Enterprises, LLC 2.08ms from Houston, US
218.235.114.133 AS9318 SK Broadband Co Ltd 6.93ms from Incheon, KR
176.49.8.37 AS12389 PJSC Rostelecom 1.04ms from Krasnoyarsk, RU
84.126.37.213 AS6739 VODAFONE ONO, S.A. 12.78ms from Madrid, ES
64.186.85.85 AS11776 Breezeline 13.09ms from New York City, US
167.20.185.213 AS21928 T-Mobile USA, Inc. 17.18ms from New York City, US
126.86.148.165 AS17676 SoftBank Corp. 4.63ms from Osaka, JP
177.130.64.69 AS28198 SEMPRE TELECOMUNICACOES LTDA 10.03ms from Osasco, BR
186.7.126.181 AS6400 Compañía Dominicana de Teléfonos S. A. 1.42ms from Santo Domingo, DO
210.207.86.37 AS3786 LG DACOM Corporation 1.23ms from Seoul, KR
58.240.63.69 AS4837 CHINA UNICOM China169 Backbone 4.86ms from Shanghai, CN
18.141.128.133 AS16509 Amazon.com, Inc. 0.13ms from Singapore, SG
23.210.97.5 AS16625 Akamai Technologies, Inc. 0.16ms from Singapore, SG
103.252.215.5 AS55547 WOODSNET-PH 0.43ms from Taipei, TW
41.104.45.245 AS36947 Telecom Algeria 15.34ms from Valencia, ES
145.64.245.21 AS28756 European Patent Organisation 7.79ms from Vienna, AT
46.14.249.181 AS3303 Swisscom (Switzerland) Ltd 1.11ms from Zuerich, CH
174.28.10.213 AS209 CenturyLink Communications, LLC 9.78ms from Albuquerque, US
195.121.64.5 AS8737 KPN B.V. 0.42ms from Amsterdam, NL
84.2.24.5 AS5483 Magyar Telekom Plc. 4.62ms from Budapest, HU
104.237.198.181 AS20278 Nexeon Technologies, Inc. 1.08ms from Chicago, US
107.213.8.37 AS7018 AT&T Enterprises, LLC 4.84ms from Chicago, US

Traceroute

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

$
traceroute -a -n -q1 -m4 185.136.197.254
traceroute to 185.136.197.254 (185.136.197.254): 4 hops max, 52 byte packets
1 [AS149573] 151.243.98.1 199.384 ms
2 *
3 *
4 *
Measurement taken from IPinfo ProbeNet in Hyderabad, IN
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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