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 4 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
185.136.199.198 ██████████ 3
185.136.199.235 ██████████ 3
185.136.199.13 █████████ 2
185.136.199.135 ██████████ 1
185.136.198.152 ██████████ 1
185.136.199.231 ██████████ 1
185.136.199.236 ████████ 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. 3.20ms from Prague, CZ
185.136.196.1 AS203365 Optet network, s. r. o. 3.22ms from Prague, CZ
185.136.198.116 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
72.109.157.197 AS6167 Verizon Business 16.24ms from Atlanta, US
49.233.77.181 AS45090 Shenzhen Tencent Computer Systems Company Limited 1.79ms from Beijing, CN
84.194.12.165 AS6848 Telenet BV 7.87ms from Brussels, BE
179.40.1.5 AS22927 Telefonica de Argentina 12.00ms from Buenos Aires, AR
122.179.242.117 AS24560 Bharti Airtel Ltd., Telemedia Services 10.50ms from Chennai, IN
149.72.115.149 AS11377 SendGrid, Inc. 0.21ms from Chicago, US
122.163.2.133 AS24560 Bharti Airtel Ltd., Telemedia Services 1.80ms from Kolkata, IN
151.42.161.21 AS1267 WIND TRE S.P.A. 5.35ms from Milan, IT
15.222.180.53 AS16509 Amazon.com, Inc. 0.17ms from Montreal, CA
221.170.107.117 AS2518 BIGLOBE Inc. 12.29ms from Osaka, JP
153.132.228.197 AS4713 NTT Communications Corporation 2.87ms from Osaka, JP
15.236.229.5 AS16509 Amazon.com, Inc. 0.14ms from Paris, FR
112.248.165.5 AS4837 CHINA UNICOM China169 Backbone 7.08ms from Qingdao, CN
5.164.153.213 AS34533 JSC "ER-Telecom Holding" 0.74ms from Samara, RU
201.206.244.69 AS11830 Instituto Costarricense de Electricidad y Telecom. 3.28ms from San Pedro, CR
211.195.200.69 AS4766 Korea Telecom 1.52ms from Seoul, KR
13.158.136.53 AS16509 Amazon.com, Inc. 0.26ms from Tokyo, JP
195.121.64.5 AS8737 KPN B.V. 0.48ms from Amsterdam, NL
71.182.130.197 AS701 Verizon Business 6.33ms from Ashburn, US
65.125.9.21 AS209 CenturyLink Communications, LLC 11.14ms from Chicago, US
184.16.183.197 AS5650 Frontier Communications of America, Inc. 8.58ms from Chicago, US
117.5.161.197 AS7552 Viettel Group 2.95ms from Hanoi, VN
45.122.247.21 AS45903 CMC Telecom Infrastructure Company 1.40ms from Ho Chi Minh City, VN
18.130.14.213 AS16509 Amazon.com, Inc. 0.20ms from London, GB
206.245.197.117 AS198440 AllPoints Fibre Networks Limited 1.38ms from London, GB

Traceroute

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

$
traceroute -a -n -q1 185.136.199.1
traceroute to 185.136.199.1 (185.136.199.1): 64 hops max, 52 byte packets
2 [] 91.210.17.48 4.601 ms
Measurement taken from IPinfo ProbeNet in Prague, CZ
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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