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
185.136.199.198 ██████████ 3
185.136.199.235 ██████████ 3
185.136.199.13 █████████ 2
185.136.199.231 ██████████ 1
185.136.199.236 ████████ 1
185.136.198.152 ██████████ 1
185.136.199.135 ██████████ 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
185.136.196.1 AS203365 Optet network, s. r. o. 3.21ms from Prague, CZ
185.136.199.1 AS203365 Optet network, s. r. o. 3.19ms from Prague, CZ
185.136.198.65 AS203365 Optet network, s. r. o. 3.20ms 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
74.196.55.245 AS19108 Optimum 19.37ms from Ashburn, US
69.90.145.101 AS13768 Aptum Technologies 13.27ms from Atlanta, US
34.209.199.53 AS16509 Amazon.com, Inc. 0.14ms from Boardman, US
105.244.97.69 AS36994 Vodacom 4.34ms from Cape Town, ZA
46.2.157.165 AS8386 Vodafone Net Iletisim Hizmetler AS 8.90ms from Denizli, TR
66.219.96.149 AS10843 Advanced Internet Technologies 0.26ms from Fayetteville, US
38.49.148.5 AS28458 IENTC S DE RL DE CV 0.22ms from Guadalajara, MX
89.109.30.37 AS12389 PJSC Rostelecom 6.22ms from Kazan, RU
46.30.138.21 AS196881 Liberty-izone Ltd 0.15ms from London, GB
90.192.82.21 AS5607 Sky UK Limited 1.05ms from London, GB
15.185.42.213 AS16509 Amazon.com, Inc. 0.48ms from Manama, BH
204.16.88.197 AS36071 The T-1 Company, LLC 4.02ms from Pittsburgh, US
216.38.134.37 AS36734 Paxio Inc. 1.18ms from Santa Clara, US
47.102.232.149 AS37963 Hangzhou Alibaba Advertising Co.,Ltd. 2.29ms from Shanghai, CN
110.139.117.149 AS7713 PT Telekomunikasi Indonesia 7.96ms from Surabaya, ID
52.69.141.53 AS16509 Amazon.com, Inc. 0.21ms from Tokyo, JP
83.9.174.69 AS5617 Orange Polska Spolka Akcyjna 3.33ms from Warsaw, PL
76.125.128.181 AS7922 Comcast Cable Communications, LLC 13.05ms from Ashburn, US
96.96.113.245 AS7922 Comcast Cable Communications, LLC 3.12ms from Ashburn, US
119.249.219.133 AS4837 CHINA UNICOM China169 Backbone 10.64ms from Beijing, CN
121.74.197.133 AS9500 One New Zealand Group Limited 5.82ms from Christchurch, NZ
173.216.75.21 AS19108 Optimum 18.91ms from Dallas, US
103.113.213.21 AS137608 Speedster Communications Pvt. Ltd. 5.64ms from Delhi, IN
43.139.131.37 AS45090 Shenzhen Tencent Computer Systems Company Limited 1.97ms from Guangzhou, CN
183.141.126.5 AS4134 CHINANET-BACKBONE 7.52ms from Hangzhou, CN

Traceroute

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

$
traceroute -a -n -q1 -f3 185.136.199.1
traceroute to 185.136.199.1 (185.136.199.1): 64 hops max, 52 byte packets
3 [] 80.249.214.27 14.944 ms
Measurement taken from IPinfo ProbeNet in Amsterdam, NL
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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