AS number 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 50
Number of IPv4 1,024
Number of IPv6 633,825,300,114,114,700,748,351,602,688
ASN type ISP
Registry ripe
Allocated 10 years ago on Feb 04, 2016
Updated 3 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 50 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 ██████████ 5
185.136.199.235 ██████████ 3
185.136.199.198 ██████████ 3
185.136.199.13 █████████ 2
185.136.199.135 ██████████ 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
185.136.196.1 AS203365 Optet network, s. r. o. 3.21ms from Prague, CZ
185.136.199.32 AS203365 Optet network, s. r. o. 3.19ms 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
48.208.216.213 AS8075 Microsoft Corporation 1.64ms from Amsterdam, NL
130.73.121.181 AS680 Verein zur Foerderung eines Deutschen Forschungsnetzes e.V. 0.77ms from Berlin, DE
3.17.29.181 AS16509 Amazon.com, Inc. 1.02ms from Columbus, US
173.216.75.21 AS19108 Optimum 19.31ms from Dallas, US
40.134.206.165 AS7029 Windstream Communications LLC 0.46ms from Dallas, US
145.64.245.21 AS28756 European Patent Organisation 7.30ms from Frankfurt am Main, DE
86.219.235.245 AS3215 Orange S.A. 12.50ms from Frankfurt am Main, DE
183.55.149.213 AS4134 CHINANET-BACKBONE 4.92ms from Guangzhou, CN
75.46.224.165 AS7018 AT&T Enterprises, LLC 2.92ms from Houston, US
175.106.14.165 AS46023 PT Quantum Tera Network 0.37ms from Jakarta, ID
45.161.224.5 AS268477 Carine oliveira dos santos ME 16.55ms from Joao Pessoa, BR
146.120.60.149 AS44321 Khozinskyi Vadym 0.73ms from Kyiv, UA
70.55.170.245 AS577 Bell Canada 2.80ms from Montreal, CA
37.110.28.245 AS42610 PJSC Rostelecom 1.10ms from Moscow, RU
72.202.216.245 AS22773 Cox Communications Inc. 0.76ms from Phoenix, US
212.14.179.245 AS20632 PJSC MegaFon 17.84ms from Saint Petersburg, RU
175.115.132.133 AS9318 SK Broadband Co Ltd 2.68ms from Seoul, KR
99.208.29.69 AS812 Rogers Communications Canada Inc. 0.63ms from Toronto, CA
46.14.249.181 AS3303 Swisscom (Switzerland) Ltd 1.22ms from Zuerich, CH
52.11.184.133 AS16509 Amazon.com, Inc. 0.20ms from Boardman, US
183.64.111.117 AS4134 CHINANET-BACKBONE 1.01ms from Chongqing, CN
192.30.241.117 AS396073 Majestic Hosting Solutions, LLC 0.49ms from Dallas, US
75.49.159.197 AS7018 AT&T Enterprises, LLC 16.52ms from Dallas, US
217.80.135.53 AS3320 Deutsche Telekom AG 4.91ms from Frankfurt am Main, DE
66.91.130.53 AS20001 Charter Communications Inc 2.03ms from Honolulu, US

Traceroute

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

$
traceroute -a -n -q1 -f5 -m9 185.136.197.222
traceroute to 185.136.197.222 (185.136.197.222): 9 hops max, 52 byte packets
5 [] 91.210.17.48 22.287 ms
7 *
8 *
9 *
Measurement taken from IPinfo ProbeNet in Vilnius, LT
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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