Autonomous System details

AS16246

O2 Czech Republic, a.s. · o2.cz

Czechia

BitTorrent

Mobile

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	712
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 712 domain names hosted across 212 IP addresses on this ASN.

Join for free to explore hosted domains ›

IP Address	Domain	Domains on this IP
188.175.126.28	██████████	43
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
86.63.219.180	██████████	19
94.74.220.5	██████████	17

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 15 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.
AS50784	Intraweb servis s.r.o.
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 14 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.
AS50784	Intraweb servis s.r.o.
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

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

IP Address	ASN	Details
95.143.135.129	AS16246 O2 Czech Republic, a.s.	`6.68ms` from Prague, CZ
188.175.4.224	AS16246 O2 Czech Republic, a.s.	`8.77ms` from Prague, CZ
86.63.193.19	AS16246 O2 Czech Republic, a.s.	`3.82ms` from Prague, CZ
188.175.208.1	AS16246 O2 Czech Republic, a.s.	`3.22ms` from Prague, CZ
86.63.198.9	AS16246 O2 Czech Republic, a.s.	`5.55ms` from Prague, CZ
188.175.11.1	AS16246 O2 Czech Republic, a.s.	`8.70ms` from Prague, CZ
92.240.190.9	AS16246 O2 Czech Republic, a.s.	`3.35ms` from Prague, CZ
82.150.175.226	AS16246 O2 Czech Republic, a.s.	`3.51ms` from Prague, CZ
86.63.207.254	AS16246 O2 Czech Republic, a.s.	`7.64ms` from Prague, CZ
188.175.3.201	AS16246 O2 Czech Republic, a.s.	`8.81ms` from Prague, CZ
86.63.205.88	AS16246 O2 Czech Republic, a.s.	`5.55ms` from Prague, CZ
188.175.199.1	AS16246 O2 Czech Republic, a.s.	`3.21ms` from Prague, CZ
188.175.74.122	AS16246 O2 Czech Republic, a.s.	`6.29ms` from Prague, CZ
94.74.238.85	AS16246 O2 Czech Republic, a.s.	`3.55ms` from Prague, CZ
86.63.208.159	AS16246 O2 Czech Republic, a.s.	`5.61ms` from Prague, CZ
188.175.181.1	AS16246 O2 Czech Republic, a.s.	`8.69ms` from Prague, CZ
188.175.29.156	AS16246 O2 Czech Republic, a.s.	`8.81ms` from Prague, CZ
95.143.137.129	AS16246 O2 Czech Republic, a.s.	`3.83ms` from Prague, CZ
188.175.218.65	AS16246 O2 Czech Republic, a.s.	`3.21ms` from Prague, CZ
188.175.126.69	AS16246 O2 Czech Republic, a.s.	`5.59ms` from Prague, CZ
213.180.61.186	AS16246 O2 Czech Republic, a.s.	`3.34ms` from Prague, CZ
92.240.174.182	AS16246 O2 Czech Republic, a.s.	`3.37ms` from Prague, CZ
188.175.63.194	AS16246 O2 Czech Republic, a.s.	`8.66ms` from Prague, CZ
188.175.161.213	AS16246 O2 Czech Republic, a.s.	`7.57ms` from Prague, CZ
94.74.203.199	AS16246 O2 Czech Republic, a.s.	`5.63ms` 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
81.206.5.54	AS1136 KPN B.V.	`1.52ms` from Amsterdam, NL
89.132.208.22	AS21334 One Hungary Ltd.	`6.64ms` from Budapest, HU
52.28.23.118	AS16509 Amazon.com, Inc.	`0.17ms` from Frankfurt am Main, DE
217.93.21.150	AS3320 Deutsche Telekom AG	`4.78ms` from Frankfurt am Main, DE
27.100.186.198	AS9946 KCTV JEJU BROADCASTING	`9.15ms` from Incheon, KR
162.236.237.86	AS7018 AT&T Enterprises, LLC	`18.20ms` from Kansas City, US
184.95.205.102	AS22652 Videotron Ltee	`16.15ms` from Montreal, CA
72.226.21.182	AS12271 Charter Communications Inc	`3.43ms` from New York City, US
65.127.172.102	AS209 CenturyLink Communications, LLC	`3.63ms` from Phoenix, US
34.200.170.182	AS14618 Amazon.com, Inc.	`0.20ms` from Reston, US
121.150.10.150	AS4766 Korea Telecom	`5.07ms` from Seoul, KR
175.241.192.118	AS4766 Korea Telecom	`7.30ms` from Seoul, KR
27.32.16.166	AS7545 TPG Telecom Limited	`5.01ms` from Sydney, AU
96.89.237.134	AS7922 Comcast Cable Communications, LLC	`6.76ms` from Boston, US
51.12.7.6	AS8075 Microsoft Corporation	`2.43ms` from Copenhagen, DK
93.197.174.22	AS3320 Deutsche Telekom AG	`4.68ms` from Frankfurt am Main, DE
113.116.33.214	AS4134 CHINANET-BACKBONE	`1.71ms` from Guangzhou, CN
212.166.224.134	AS12430 VODAFONE ESPANA S.A.U.	`7.57ms` from Madrid, ES
150.31.164.246	AS2497 Internet Initiative Japan Inc.	`1.75ms` from Osaka, JP
52.22.36.6	AS14618 Amazon.com, Inc.	`0.23ms` from Reston, US
186.211.140.134	AS14840 BR.Digital Telecom	`0.63ms` from Rio de Janeiro, BR
79.19.199.54	AS3269 Telecom Italia S.p.A.	`2.50ms` from Rome, IT
201.23.189.118	AS22085 Claro S/A	`1.33ms` from Sao Paulo, BR
116.231.157.182	AS4812 China Telecom (Group)	`4.86ms` from Shanghai, CN
117.131.26.102	AS9808 China Mobile Communications Group Co., Ltd.	`4.04ms` from Shanghai, CN

Traceroute

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

traceroute -a -n -q1 188.175.55.125

traceroute to 188.175.55.125 (188.175.55.125): 64 hops max, 52 byte packets

1 [AS42473] 178.255.154.92 0.454 ms

2 *

3 [AS5610] 194.228.21.200 0.663 ms

4 *

5 *

6 [AS16246] 188.175.255.217 2804.618 ms

7 [AS16246] 188.175.255.221 10.431 ms

8 [AS16246] 188.175.255.203 16.712 ms

9 [AS16246] 188.175.0.113 16.317 ms

10 [AS16246] 188.175.55.125 9.603 ms

Measurement taken from

IPinfo ProbeNet in Prague, CZ

On January 9th 2026

Related Networks

AS199350

Ministerstvo financi

More details

AS203376

Mailkit s.r.o.

More details

AS210984

Zerops s.r.o.

More details

AS215353

Josef Hrabe

More details

AS215757

Carrier Refrigeration Operation Czech Republic s.r.o.

More details

AS29583

Spinoco Czech Republic, a.s.

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