AS16246 O2 Czech Republic, a.s. details

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AS16246 – O2 Czech Republic, a.s.

Field	Value
Country	Czechia
Website	o2.cz
Hosted domains	742
Number of IPv4	133,120
Number of IPv6	713,053,462,628,379,038,341,895,553,024
ASN type	ISP
Registry	ripe
Allocated	22 years ago on Oct 21, 2003
Updated	a year ago on Jun 20, 2024

Netblock	Company	Num of IPs
188.175.0.0/16	O2 Czech Republic, a.s.	65,536
94.74.192.0/18	O2 Czech Republic, a.s.	16,384
213.180.32.0/19	O2 Czech Republic, a.s.	8,192
82.150.160.0/19	O2 Czech Republic, a.s.	8,192
86.63.192.0/19	O2 Czech Republic, a.s.	8,192
92.240.160.0/19	O2 Czech Republic, a.s.	8,192
176.98.96.0/20	O2 Czech Republic, a.s.	4,096
178.17.96.0/20	O2 Czech Republic, a.s.	4,096
95.143.128.0/20	O2 Czech Republic, a.s.	4,096
77.87.232.0/21	CATR	2,048
78.108.152.0/21	Assignment for PorubaNET's FO customers	2,048
185.15.252.0/22	O2 Czech Republic, a.s.	1,024
91.197.116.0/22	CATR	1,024

Netblock	Company
2a02:350::/29	O2 Czech Republic, a.s.
2a03:b4c0::/32	O2 Czech Republic, a.s.

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WHOIS Details

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                                                ASHandle:       AS16246
                                                OrgID:          AS16246
                                                ASName:         AS16246
                                                ASNumber:       AS16246
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA

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Hosted Domains

There are 742 domain names hosted across 222 IP addresses on this ASN.

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IP Address	Domain	Domains on this IP
188.175.126.28	██████████	43
82.150.165.218	██████████	33
188.175.30.5	██████████	32
94.74.229.44	███████	30
94.74.222.181	██████████	30
213.180.34.211	██████████	27
94.74.194.116	██████████	26
82.150.184.15	██████████	23
86.63.219.180	██████████	19
213.180.35.58	██████████	19

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Peers

There are 16 peers for this ASN.

Peers	Name
AS12570	O2 Czech Republic, a.s.
AS197197	Nova Optika s. r. o.
AS202657	Pavel Jochim
AS207015	Position s.r.o.
AS212315	Frantisek Toman
AS29321	O2 Czech Republic, a.s.
AS31246	NETBOX Autonomous system
AS39736	ICT Support, s.r.o.
AS41046	O2 Czech Republic, a.s.
AS42000	Futruy s.r.o.
AS44070	O2 Czech Republic, a.s.
AS47681	O2 Czech Republic, a.s.
AS49767	O2 Czech Republic, a.s.
AS50784	Intraweb servis s.r.o.
AS5610	O2 Czech Republic, a.s.
AS62178	MASTER IT Technologies, a.s.

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Upstreams

There is 1 peer for this ASN.

upstreams	Name
AS5610	O2 Czech Republic, a.s.

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Downstreams

There are 14 downstreams for this ASN.

Downstreams	Name
AS12570	O2 Czech Republic, a.s.
AS197197	Nova Optika s. r. o.
AS202657	Pavel Jochim
AS207015	Position s.r.o.
AS212315	Frantisek Toman
AS29321	O2 Czech Republic, a.s.
AS31246	NETBOX Autonomous system
AS39736	ICT Support, s.r.o.
AS41046	O2 Czech Republic, a.s.
AS44070	O2 Czech Republic, a.s.
AS47681	O2 Czech Republic, a.s.
AS49767	O2 Czech Republic, a.s.
AS50784	Intraweb servis s.r.o.
AS62178	MASTER IT Technologies, a.s.

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Pingable IPs

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

IP Address	ASN	Details
188.175.167.1	AS16246 O2 Czech Republic, a.s.	`7.32ms` from Prague, CZ
188.175.138.1	AS16246 O2 Czech Republic, a.s.	`1.64ms` from Prague, CZ
213.180.48.236	AS16246 O2 Czech Republic, a.s.	`5.26ms` from Prague, CZ
188.175.65.1	AS16246 O2 Czech Republic, a.s.	`5.40ms` from Prague, CZ
188.175.156.140	AS16246 O2 Czech Republic, a.s.	`11.25ms` from Prague, CZ
86.63.194.134	AS16246 O2 Czech Republic, a.s.	`3.30ms` from Prague, CZ
188.175.102.90	AS16246 O2 Czech Republic, a.s.	`3.05ms` from Prague, CZ
188.175.220.1	AS16246 O2 Czech Republic, a.s.	`3.19ms` from Prague, CZ
188.175.118.26	AS16246 O2 Czech Republic, a.s.	`11.14ms` from Prague, CZ
188.175.240.71	AS16246 O2 Czech Republic, a.s.	`5.04ms` from Prague, CZ
94.74.242.2	AS16246 O2 Czech Republic, a.s.	`8.46ms` from Prague, CZ
213.180.50.169	AS16246 O2 Czech Republic, a.s.	`5.03ms` from Prague, CZ
188.175.225.1	AS16246 O2 Czech Republic, a.s.	`0.72ms` from Prague, CZ
94.74.220.129	AS16246 O2 Czech Republic, a.s.	`2.83ms` from Prague, CZ
94.74.245.219	AS16246 O2 Czech Republic, a.s.	`1.05ms` from Prague, CZ
94.74.247.239	AS16246 O2 Czech Republic, a.s.	`6.20ms` from Prague, CZ
213.180.35.161	AS16246 O2 Czech Republic, a.s.	`0.74ms` from Prague, CZ
94.74.207.106	AS16246 O2 Czech Republic, a.s.	`5.06ms` from Prague, CZ
188.175.106.254	AS16246 O2 Czech Republic, a.s.	`6.54ms` from Prague, CZ
95.143.129.138	AS16246 O2 Czech Republic, a.s.	`3.72ms` from Prague, CZ
94.74.246.1	AS16246 O2 Czech Republic, a.s.	`5.40ms` from Prague, CZ
213.180.53.53	AS16246 O2 Czech Republic, a.s.	`0.89ms` from Prague, CZ
94.74.197.1	AS16246 O2 Czech Republic, a.s.	`5.39ms` from Prague, CZ
188.175.173.1	AS16246 O2 Czech Republic, a.s.	`0.73ms` from Prague, CZ
188.175.32.214	AS16246 O2 Czech Republic, a.s.	`7.39ms` 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
37.17.176.86	AS41798 JSC Transtelecom	`0.94ms` from Almaty, KZ
80.88.7.6	AS328131 Webb Fontaine Nigeria Limited	`12.64ms` from Lagos, NG
113.232.25.86	AS4837 CHINA UNICOM China169 Backbone	`13.93ms` from Liaoyang, CN
77.54.162.198	AS12353 Vodafone Portugal	`1.39ms` from Lisbon, PT
86.151.233.86	AS2856 British Telecommunications PLC	`3.22ms` from London, GB
70.93.102.166	AS20001 Charter Communications Inc	`8.85ms` from Los Angeles, US
34.149.62.166	AS396982 Google LLC	`0.08ms` from Melbourne, AU
151.74.144.102	AS1267 WIND TRE S.P.A.	`17.98ms` from Milan, IT
134.19.172.86	AS201602 NEWTEC S.R.L.	`8.19ms` from Milan, IT
103.90.96.182	AS45117 Ishan's Network	`8.99ms` from Mumbai, IN
114.189.145.198	AS4713 NTT Communications Corporation	`7.72ms` from Osaka, JP
18.229.33.166	AS16509 Amazon.com, Inc.	`0.19ms` from Osasco, BR
107.119.177.38	AS7287 AT&T Enterprises, LLC	`1.67ms` from Seattle, US
103.59.220.54	AS131595 Kingston Technology Fareast Corp.	`1.48ms` from Taipei, TW
210.165.185.86	AS2514 NTT PC Communications, Inc.	`2.25ms` from Tokyo, JP
27.22.193.214	AS4134 CHINANET-BACKBONE	`7.17ms` from Wuhan, CN
31.201.233.166	AS50266 Odido Netherlands B.V.	`6.26ms` from Amsterdam, NL
68.33.167.118	AS7922 Comcast Cable Communications, LLC	`4.94ms` from Ashburn, US
94.71.214.102	AS6799 Ote SA (Hellenic Telecommunications Organisation)	`5.92ms` from Athens, GR
35.155.217.54	AS16509 Amazon.com, Inc.	`0.17ms` from Boardman, US
50.187.157.22	AS7922 Comcast Cable Communications, LLC	`7.26ms` from Boston, US
195.199.107.70	AS1955 KIFU (Governmental Info Tech Development Agency)	`7.62ms` from Budapest, HU
52.29.79.246	AS16509 Amazon.com, Inc.	`0.12ms` from Frankfurt am Main, DE
85.8.72.166	AS9145 EWE TEL GmbH	`8.10ms` from Hamburg, DE
88.200.15.198	AS2107 ARNES	`0.54ms` from Ljubljana, SI

Traceroute

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

traceroute -a -n -q1 -m8 188.175.67.184

traceroute to 188.175.67.184 (188.175.67.184): 8 hops max, 52 byte packets

1 [AS43289] 178.175.137.1 0.222 ms

2 [AS43289] 178.17.160.162 8.824 ms

3 *

4 *

5 [AS5610] 90.182.199.221 30.589 ms

6 *

7 *

8 *

Measurement taken from

IPinfo ProbeNet in Chisinau, MD

On August 17th 2025

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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 AS16246 at robtex.

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