Autonomous System details

AS16246

O2 Czech Republic, a.s. · o2.cz

Czechia

BitTorrent

Need more data or want to access it via API or data downloads? Sign up to get free access

AS16246 – O2 Czech Republic, a.s.

Field	Value
Country	Czechia
Website	o2.cz
Hosted domains	703
IPv4 addresses	133,120
IPv6 addresses	713,053,462,628,379,038,341,895,553,024
ASN type	ISP
Registry	ripe
Allocated	22 years ago on Oct 21, 2003
Updated	2 years 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
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
213.180.32.0/19	O2 Czech Republic, a.s.	8,192
95.143.128.0/20	O2 Czech Republic, a.s.	4,096
176.98.96.0/20	O2 Czech Republic, a.s.	4,096
178.17.96.0/20	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
91.197.116.0/22	CATR	1,024
185.15.252.0/22	O2 Czech Republic, a.s.	1,024

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

Get this data and more with IPinfo's powerful IP Ranges API - quickly and easily identify company-owned IP ranges.

IP Ranges API

WHOIS Details

Join for free to view WHOIS details ›


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

Get this data and more with IPinfo's WHOIS product - effortless access to POCs, ORGs, and Networks, for actionable intelligence.

IP WHOIS API & Database

Hosted Domains

There are 703 domain names hosted across 211 IP addresses on this ASN.

Join for free to explore hosted domains ›

IP Address	Domain	Domains on this IP
188.175.126.28	██████████	42
82.150.165.218	██████████	34
188.175.30.5	██████████	32
94.74.222.181	██████████	31
94.74.229.44	██████████	30
213.180.34.211	██████████	27
94.74.194.116	██████████	26
213.180.35.58	██████████	20
94.74.220.5	██████████	17
86.63.219.180	██████████	15

Discover all domains hosted on a single IP address with IPinfo's powerful Hosted Domains (Reverse IP) solution.

Useful for Cybersecurity

Hosted Domains API & Database

Peers

There are 14 peers for this ASN.

Peers	Name
AS12570	O2 Czech Republic, a.s.
AS197197	CETIN a.s.
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.
AS5610	O2 Czech Republic, a.s.
AS62178	MASTER IT Technologies, a.s.

Get this data and more insights on related domains, allocation dates, registry names, IP counts with IPinfo's IP-to-ASN product.

ASN API & Database

Upstreams

There is 1 peer for this ASN.

upstreams	Name
AS5610	O2 Czech Republic, a.s.

Get this data and more insights on related domains, allocation dates, registry names, IP counts with IPinfo's IP-to-ASN product.

ASN API & Database

Downstreams

There are 13 downstreams for this ASN.

Downstreams	Name
AS12570	O2 Czech Republic, a.s.
AS197197	CETIN a.s.
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.
AS62178	MASTER IT Technologies, a.s.

Get this data and more insights on related domains, allocation dates, registry names, IP counts with IPinfo's IP-to-ASN product.

ASN API & Database

Pingable IPs

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

IP Address	ASN	Details
92.240.161.201	AS16246 O2 Czech Republic, a.s.	`4.33ms` from Prague, CZ
213.180.33.230	AS16246 O2 Czech Republic, a.s.	`0.83ms` from Prague, CZ
188.175.214.193	AS16246 O2 Czech Republic, a.s.	`3.25ms` from Prague, CZ
188.175.22.35	AS16246 O2 Czech Republic, a.s.	`8.85ms` from Prague, CZ
188.175.127.1	AS16246 O2 Czech Republic, a.s.	`2.49ms` from Prague, CZ
188.175.154.58	AS16246 O2 Czech Republic, a.s.	`8.93ms` from Prague, CZ
188.175.83.9	AS16246 O2 Czech Republic, a.s.	`6.46ms` from Prague, CZ
188.175.137.1	AS16246 O2 Czech Republic, a.s.	`2.35ms` from Prague, CZ
188.175.6.153	AS16246 O2 Czech Republic, a.s.	`8.78ms` from Prague, CZ
188.175.157.49	AS16246 O2 Czech Republic, a.s.	`12.69ms` from Prague, CZ
178.17.98.193	AS16246 O2 Czech Republic, a.s.	`6.20ms` from Prague, CZ
188.175.80.86	AS16246 O2 Czech Republic, a.s.	`6.48ms` from Prague, CZ
213.180.32.70	AS16246 O2 Czech Republic, a.s.	`3.19ms` from Prague, CZ
92.240.174.72	AS16246 O2 Czech Republic, a.s.	`3.37ms` from Prague, CZ
188.175.64.1	AS16246 O2 Czech Republic, a.s.	`6.81ms` from Prague, CZ
188.175.163.147	AS16246 O2 Czech Republic, a.s.	`7.58ms` from Prague, CZ
188.175.236.89	AS16246 O2 Czech Republic, a.s.	`3.77ms` from Prague, CZ
188.175.117.33	AS16246 O2 Czech Republic, a.s.	`6.40ms` from Prague, CZ
188.175.11.1	AS16246 O2 Czech Republic, a.s.	`8.76ms` from Prague, CZ
86.63.201.137	AS16246 O2 Czech Republic, a.s.	`5.64ms` from Prague, CZ
92.240.169.142	AS16246 O2 Czech Republic, a.s.	`3.30ms` from Prague, CZ
92.240.188.204	AS16246 O2 Czech Republic, a.s.	`3.32ms` from Prague, CZ
77.87.234.1	AS16246 O2 Czech Republic, a.s.	`6.16ms` from Prague, CZ
2a02:350:100::1:ff06:1	AS16246 O2 Czech Republic, a.s.	`1.70ms` from Prague, CZ
92.240.163.34	AS16246 O2 Czech Republic, a.s.	`3.39ms` 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
20.56.7.118	AS8075 Microsoft Corporation	`0.36ms` from Amsterdam, NL
107.91.79.134	AS20057 AT&T Enterprises, LLC	`2.75ms` from Atlanta, US
80.131.53.182	AS3320 Deutsche Telekom AG	`1.86ms` from Berlin, DE
96.127.40.198	AS8987 Amazon Data Services Ireland Ltd	`0.31ms` from Boardman, US
185.36.164.6	AS200133 HUmani Society	`2.74ms` from Brussels, BE
107.9.94.246	AS7843 Charter Communications Inc	`13.50ms` from Chicago, US
48.209.167.102	AS8075 Microsoft Corporation	`0.19ms` from Dublin, IE
87.183.255.86	AS3320 Deutsche Telekom AG	`4.34ms` from Frankfurt am Main, DE
14.147.5.150	AS4134 CHINANET-BACKBONE	`1.71ms` from Guangzhou, CN
41.15.67.198	AS29975 Vodacom	`14.68ms` from Johannesburg, ZA
67.227.141.6	AS32244 Liquid Web, L.L.C	`0.18ms` from Lansing, US
80.29.189.38	AS3352 TELEFONICA DE ESPANA S.A.U.	`1.75ms` from Madrid, ES
82.48.73.118	AS3269 Telecom Italia S.p.A.	`3.91ms` from Milan, IT
129.241.160.246	AS224 SIKT - KUNNSKAPSSEKTORENS TJENESTELEVERANDOR	`8.04ms` from Oslo, NO
220.119.156.6	AS4766 Korea Telecom	`7.23ms` from Seoul, KR
52.230.69.70	AS8075 Microsoft Corporation	`0.49ms` from Singapore, SG
125.100.41.150	AS17506 ARTERIA Networks Corporation	`1.08ms` from Tokyo, JP
125.41.184.166	AS4837 CHINA UNICOM China169 Backbone	`1.06ms` from Zhengzhou, CN
85.2.163.86	AS3303 Swisscom (Switzerland) Ltd	`2.43ms` from Zuerich, CH
108.197.220.6	AS7018 AT&T Enterprises, LLC	`9.61ms` from Atlanta, US
20.21.217.118	AS8075 Microsoft Corporation	`0.23ms` from Az Za`ayin, QA
162.128.33.198	AS21859 Zenlayer Inc	`0.83ms` from Karachi, PK
185.121.239.246	AS212286 LonConnect Ltd	`0.36ms` from London, GB
87.219.219.6	AS12479 Orange Espagne SA	`12.77ms` from Madrid, ES
212.231.225.38	AS15704 XTRA TELECOM S.A.	`1.46ms` from Madrid, ES

Traceroute

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

traceroute -a -n -q1 188.175.11.4

traceroute to 188.175.11.4 (188.175.11.4): 64 hops max, 52 byte packets

1 [AS42473] 178.255.154.92 0.327 ms

2 *

3 [AS5610] 194.228.21.200 0.65 ms

4 *

5 *

6 [AS16246] 188.175.255.217 6.593 ms

7 [AS16246] 188.175.255.221 14.534 ms

8 [AS16246] 188.175.255.203 14.153 ms

9 [AS16246] 94.74.239.154 9.648 ms

10 [AS16246] 188.175.0.227 8.791 ms

11 [AS16246] 188.175.11.4 9.278 ms

Measurement taken from

IPinfo ProbeNet in Prague, CZ

On February 16th 2026

Related Networks

AS197246

Glow Internet s.r.o.

More details

AS200635

pragmatel s.r.o.

More details

AS201654

CEZNET s.r.o.

More details

AS203645

Jan Ryznar

More details

AS207945

CNI Group s.r.o.

More details

AS208648

Playground HUB s.r.o.

More details

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.

Data built with users in mind: reliable, accurate, and easy-to-use

Discover why industry-leading companies around the globe love our data. IPinfo's accurate insights fuel use cases from cybersecurity, data enrichment, web personalization, and much more.

Get Started for Free Contact Sales