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	711
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 711 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	██████████	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
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 16 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.
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.

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
94.74.228.225	AS16246 O2 Czech Republic, a.s.	`0.92ms` from Prague, CZ
188.175.232.129	AS16246 O2 Czech Republic, a.s.	`6.21ms` from Prague, CZ
188.175.28.57	AS16246 O2 Czech Republic, a.s.	`8.81ms` from Prague, CZ
94.74.244.2	AS16246 O2 Czech Republic, a.s.	`5.62ms` from Prague, CZ
95.143.129.129	AS16246 O2 Czech Republic, a.s.	`3.80ms` from Prague, CZ
77.87.236.161	AS16246 O2 Czech Republic, a.s.	`6.18ms` from Prague, CZ
188.175.129.42	AS16246 O2 Czech Republic, a.s.	`6.40ms` from Prague, CZ
94.74.194.217	AS16246 O2 Czech Republic, a.s.	`0.85ms` from Prague, CZ
188.175.56.1	AS16246 O2 Czech Republic, a.s.	`8.68ms` from Prague, CZ
188.175.96.151	AS16246 O2 Czech Republic, a.s.	`6.44ms` from Prague, CZ
86.63.214.1	AS16246 O2 Czech Republic, a.s.	`4.21ms` from Prague, CZ
213.180.43.37	AS16246 O2 Czech Republic, a.s.	`0.86ms` from Prague, CZ
188.175.164.230	AS16246 O2 Czech Republic, a.s.	`7.67ms` from Prague, CZ
188.175.112.237	AS16246 O2 Czech Republic, a.s.	`0.88ms` from Prague, CZ
188.175.62.114	AS16246 O2 Czech Republic, a.s.	`8.74ms` from Prague, CZ
188.175.162.225	AS16246 O2 Czech Republic, a.s.	`7.55ms` from Prague, CZ
86.63.208.249	AS16246 O2 Czech Republic, a.s.	`5.64ms` from Prague, CZ
188.175.199.1	AS16246 O2 Czech Republic, a.s.	`3.17ms` from Prague, CZ
188.175.25.45	AS16246 O2 Czech Republic, a.s.	`8.77ms` from Prague, CZ
188.175.68.1	AS16246 O2 Czech Republic, a.s.	`6.74ms` from Prague, CZ
188.175.116.112	AS16246 O2 Czech Republic, a.s.	`6.46ms` from Prague, CZ
94.74.233.119	AS16246 O2 Czech Republic, a.s.	`5.43ms` from Prague, CZ
213.180.49.251	AS16246 O2 Czech Republic, a.s.	`5.41ms` from Prague, CZ
188.175.32.214	AS16246 O2 Czech Republic, a.s.	`8.79ms` from Prague, CZ
188.175.103.106	AS16246 O2 Czech Republic, a.s.	`3.25ms` 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
105.104.11.6	AS36947 Telecom Algeria	`9.27ms` from Algiers, DZ
37.17.176.86	AS41798 JSC Transtelecom	`0.96ms` from Almaty, KZ
104.208.173.6	AS8075 Microsoft Corporation	`0.21ms` from Boydton, US
76.184.75.6	AS11427 Charter Communications Inc	`7.27ms` from Dallas, US
117.255.157.102	AS9829 National Internet Backbone	`12.16ms` from Delhi, IN
117.30.23.6	AS4134 CHINANET-BACKBONE	`5.46ms` from Fuzhou, CN
200.119.133.214	AS13682 TELECOMUNICACIONES DE GUATEMALA, SOCIEDAD ANONIMA	`0.99ms` from Guatemala City, GT
95.95.175.6	AS2860 NOS COMUNICACOES, S.A.	`2.13ms` from Lisbon, PT
81.129.29.182	AS2856 British Telecommunications PLC	`4.00ms` from London, GB
74.177.126.134	AS8075 Microsoft Corporation	`0.21ms` from London, GB
93.46.41.6	AS12874 Fastweb SpA	`0.88ms` from Milan, IT
76.64.91.230	AS577 Bell Canada	`4.52ms` from Montreal, CA
35.137.215.214	AS33363 Charter Communications, Inc	`9.17ms` from Orlando, US
14.192.126.54	AS131934 ICC Corporation	`4.18ms` from Osaka, JP
126.92.108.70	AS17676 SoftBank Corp.	`3.66ms` from Osaka, JP
114.170.126.246	AS4713 NTT DOCOMO BUSINESS,Inc.	`13.09ms` from Osaka, JP
100.50.147.214	AS14618 Amazon.com, Inc.	`0.20ms` from Reston, US
206.87.227.6	AS393249 University of British Columbia	`4.25ms` from Seattle, US
122.220.70.54	AS17506 ARTERIA Networks Corporation	`0.87ms` from Tokyo, JP
64.211.220.6	AS23249 Avectra	`2.31ms` from Ashburn, US
37.99.199.246	AS198477 TI SPARKLE GREECE SA	`0.75ms` from Athens, GR
35.160.187.54	AS16509 Amazon.com, Inc.	`0.15ms` from Boardman, US
23.25.7.86	AS7922 Comcast Cable Communications, LLC	`5.04ms` from Chicago, US
45.25.129.102	AS7018 AT&T Enterprises, LLC	`6.24ms` from Dallas, US
203.186.84.198	AS9269 Hong Kong Broadband Network Ltd.	`0.63ms` from Hong Kong, HK

Traceroute

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

traceroute -a -n -q1 -f4 188.175.165.49

traceroute to 188.175.165.49 (188.175.165.49): 64 hops max, 52 byte packets

4 [AS5610] 194.228.21.200 0.711 ms

5 *

6 [AS16246] 188.175.254.251 5.863 ms

7 [AS16246] 188.175.255.217 40.695 ms

8 [AS16246] 188.175.255.234 6.866 ms

9 [AS16246] 188.175.254.12 7.492 ms

10 [AS16246] 188.175.254.1 8.189 ms

11 [AS16246] 188.175.254.14 8.528 ms

12 [AS16246] 188.175.165.49 7.924 ms

Measurement taken from

IPinfo ProbeNet in Prague, CZ

On January 19th 2026

Related Networks

AS203365

Optet network, s. r. o.

More details

AS204150

David Zakoucky

More details

AS208648

Playground HUB s.r.o.

More details

AS212362

INERA.CZ s.r.o.

More details

AS215718

IBA Group a.s.

More details

AS40964

ASTELNET 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