Autonomous System details

AS16246

O2 Czech Republic, a.s. · o2.cz

Czechia

BitTorrent

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AS16246 – O2 Czech Republic, a.s.

Field	Value
Country	Czechia
Website	o2.cz
Hosted domains	725
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	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
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.

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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 725 domain names hosted across 213 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	██████████	34
188.175.30.5	██████████	32
94.74.222.181	█████████	30
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

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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.
AS41453	SITEL spol. 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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ASN API & Database

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	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.

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ASN API & Database

Pingable IPs

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

IP Address	ASN	Details
213.180.45.28	AS16246 O2 Czech Republic, a.s.	`4.11ms` from Prague, CZ
188.175.54.123	AS16246 O2 Czech Republic, a.s.	`8.85ms` from Prague, CZ
92.240.171.252	AS16246 O2 Czech Republic, a.s.	`3.26ms` from Prague, CZ
86.63.220.37	AS16246 O2 Czech Republic, a.s.	`3.33ms` from Prague, CZ
188.175.218.129	AS16246 O2 Czech Republic, a.s.	`3.21ms` from Prague, CZ
82.150.169.55	AS16246 O2 Czech Republic, a.s.	`4.15ms` from Prague, CZ
188.175.23.129	AS16246 O2 Czech Republic, a.s.	`8.64ms` from Prague, CZ
92.240.176.13	AS16246 O2 Czech Republic, a.s.	`3.30ms` from Prague, CZ
188.175.98.6	AS16246 O2 Czech Republic, a.s.	`6.36ms` from Prague, CZ
188.175.2.16	AS16246 O2 Czech Republic, a.s.	`8.80ms` from Prague, CZ
188.175.189.228	AS16246 O2 Czech Republic, a.s.	`6.35ms` from Prague, CZ
188.175.15.1	AS16246 O2 Czech Republic, a.s.	`8.74ms` from Prague, CZ
188.175.185.12	AS16246 O2 Czech Republic, a.s.	`12.64ms` from Prague, CZ
188.175.99.208	AS16246 O2 Czech Republic, a.s.	`6.37ms` from Prague, CZ
94.74.197.1	AS16246 O2 Czech Republic, a.s.	`5.89ms` from Prague, CZ
92.240.187.49	AS16246 O2 Czech Republic, a.s.	`3.30ms` from Prague, CZ
188.175.212.65	AS16246 O2 Czech Republic, a.s.	`3.21ms` from Prague, CZ
188.175.243.1	AS16246 O2 Czech Republic, a.s.	`6.28ms` from Prague, CZ
86.63.214.1	AS16246 O2 Czech Republic, a.s.	`4.21ms` from Prague, CZ
86.63.218.117	AS16246 O2 Czech Republic, a.s.	`3.76ms` from Prague, CZ
92.240.180.104	AS16246 O2 Czech Republic, a.s.	`3.34ms` from Prague, CZ
77.87.237.225	AS16246 O2 Czech Republic, a.s.	`6.17ms` from Prague, CZ
86.63.219.113	AS16246 O2 Czech Republic, a.s.	`0.85ms` from Prague, CZ
188.175.65.1	AS16246 O2 Czech Republic, a.s.	`6.71ms` from Prague, CZ
86.63.204.214	AS16246 O2 Czech Republic, a.s.	`5.54ms` 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	`0.99ms` from Almaty, KZ
96.127.40.198	AS8987 Amazon Data Services Ireland Ltd	`0.27ms` from Boardman, US
64.95.72.70	AS14742 Unitas Global	`1.01ms` from Boston, US
116.168.35.182	AS4837 CHINA UNICOM China169 Backbone	`2.34ms` from Chongqing, CN
27.9.45.70	AS4837 CHINA UNICOM China169 Backbone	`3.61ms` from Chongqing, CN
76.184.75.6	AS11427 Charter Communications Inc	`6.94ms` from Dallas, US
94.203.211.118	AS15802 Emirates Integrated Telecommunications Company PJSC	`3.31ms` from Dubai, AE
93.131.156.6	AS6805 Telefonica Germany GmbH & Co.OHG	`3.65ms` from Duesseldorf, DE
116.102.56.182	AS24086 Viettel Corporation	`2.14ms` from Ho Chi Minh City, VN
121.233.129.198	AS4134 CHINANET-BACKBONE	`5.38ms` from Huai'an, CN
160.26.30.70	AS23781 Toyama University	`5.80ms` from Osaka, JP
58.125.178.150	AS9318 SK Broadband Co Ltd	`8.12ms` from Seoul, KR
136.110.62.38	AS396982 Google LLC	`0.13ms` from Singapore, SG
62.2.108.134	AS6730 Sunrise GmbH	`3.67ms` from Zuerich, CH
65.185.50.246	AS10796 Charter Communications Inc	`8.94ms` from Columbus, US
104.151.155.166	AS399081 Centranet, LLC	`6.33ms` from Dallas, US
96.52.22.6	AS6327 Shaw Communications	`3.53ms` from Edmonton, CA
223.6.132.70	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`4.29ms` from Hangzhou, CN
76.82.93.70	AS20001 Charter Communications Inc	`8.96ms` from Los Angeles, US
46.26.1.118	AS12430 VODAFONE ESPANA S.A.U.	`12.35ms` from Madrid, ES
188.241.99.118	AS200845 AVATEL TELECOM, SA	`8.97ms` from Madrid, ES
181.131.175.134	AS13489 UNE EPM TELECOMUNICACIONES S.A.	`4.59ms` from Medellin, CO
93.46.41.6	AS12874 Fastweb SpA	`0.89ms` from Milan, IT
60.166.94.246	AS4134 CHINANET-BACKBONE	`9.34ms` from Nanchang, CN
182.226.202.86	AS17858 LG POWERCOMM	`3.52ms` from Seoul, KR

Traceroute

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

traceroute -a -n -q1 -f4 -m17 176.98.109.0

traceroute to 176.98.109.0 (176.98.109.0): 17 hops max, 52 byte packets

4 [AS64049] 103.198.140.174 165.972 ms

5 [AS64049] 103.198.140.56 143.462 ms

6 *

7 [AS174] 154.54.60.129 144.684 ms

8 [AS174] 154.54.62.218 154.332 ms

9 [AS174] 154.54.63.141 163.526 ms

10 [AS174] 154.54.63.146 156.554 ms

11 [AS174] 154.54.73.94 161.265 ms

12 [AS174] 149.11.118.5 167.767 ms

13 [AS5610] 90.182.199.221 167.318 ms

14 [AS16246] 188.175.255.251 167.092 ms

15 *

16 *

17 *

Measurement taken from

IPinfo ProbeNet in Kolhapur, IN

On December 6th 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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