AS5610

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Summary

IP address summary information
Name	O2 Czech Republic, a.s.
Country	Czechia
Website	host.io/o2.cz·o2.cz
Hosted domains	7,008
IPv4 addresses	1,542,400
IPv6 addresses	9.51 × 10²⁹
ASN type	ISP
Registry	RIPE
Allocated	24 years ago on Jul 22, 2002
Updated	2 years ago on Jun 12, 2024

Ranking

#431

Overall rank

among 74,608 networks

Traffic

#398

Infrastructure

#423

#2inCzechia

Learn how ASN rankings work

Geolocation

Share of IPv4 footprint per hexagonLessMore

Countries by IPv4 share

Czechia
100%

Held location over 90 days: 89%
Held location over 1 year: 87%
Median days between moves: 138 days
Geolocation scope: National

How consistently this network's IPs hold their geolocation. Read relative to the network type, not as a quality score.

Activity

A pronounced day/night rhythm — the signature of a consumer/eyeball network whose users sleep at night.

Mon

IP Ranges

Netblock	Company	Num of IPs
88.100.0.0/14	O2 Czech Republic, a.s.	262,144
90.180.0.0/14	O2 Czech Republic, a.s.	262,144
85.70.0.0/15	O2 Czech Republic, a.s.	131,072
85.160.0.0/15	O2 Czech Republic, a.s.	131,072
88.100.0.0/15	O2 Czech Republic, a.s.	131,072
90.178.0.0/15	O2 Czech Republic, a.s.	131,072
109.80.0.0/15	O2 Czech Republic, a.s.	131,072
80.188.0.0/16	O2 Czech Republic, a.s.	65,536
83.208.0.0/16	O2 Czech Republic, a.s.	65,536
85.70.0.0/16	O2 Czech Republic, a.s.	65,536

IP Ranges

WHOIS


  ASHandle:       █████
  OrgID:          █████
  ASName:         ██████
  ASNumber:       AS█████
  RegDate:        ████-██-██
  Updated:        ████-██-██
  TechHandle:     ████-████
  Source:         ████

Hosted Domains

There are 7,008 domain names hosted across 1,928 IP addresses on this ASN.

IP Address	Domain	Count
90.183.125.35		231
90.182.39.34		177
194.228.93.211		160
160.218.161.165		146
194.228.235.215		137

Places

IPs in this network linked to physical places, based on their Wi-Fi networks.

Places IPs2,454
Hotel472
Grocery Store396
Restaurant380

Category	In AS5610	Example IP

Places

Peers

There are 50 peers for this ASN.

ASN	Name	Rank

Upstreams

There are 4 upstreams for this ASN.

ASN	Name	Rank
AS174	Cogent Communications, LLC
AS1299	Arelion Sweden AB
AS6461	Zayo Bandwidth
AS6939	Hurricane Electric LLC

Downstreams

There are 41 downstreams for this ASN.

ASN	Name	Rank

Pingable IPs

3,119 IPs in this ASN replied to an ICMP ping during our most recent internet scan. Learn more

IP Address	ASN	Details
160.218.122.232 Ping	AS5610O2 Czech Republic, a.s.	13.15ms from Brno, CZ
80.188.48.1 Ping	AS5610O2 Czech Republic, a.s.	1.03ms from Prague, CZ
88.100.172.149 Ping	AS5610O2 Czech Republic, a.s.	10.48ms from Prague, CZ
88.101.77.59 Ping	AS5610O2 Czech Republic, a.s.	4.89ms from Prague, CZ
80.188.93.98 Ping	AS5610O2 Czech Republic, a.s.	0.74ms from Prague, CZ
109.81.193.26 Ping	AS5610O2 Czech Republic, a.s.	4.91ms from Prague, CZ
90.183.49.213 Ping	AS5610O2 Czech Republic, a.s.	1.00ms from Prague, CZ
88.100.237.248 Ping	AS5610O2 Czech Republic, a.s.	1.67ms from Prague, CZ
90.181.143.31 Ping	AS5610O2 Czech Republic, a.s.	2.93ms from Prague, CZ
80.188.56.181 Ping	AS5610O2 Czech Republic, a.s.	1.00ms from Prague, CZ

Other Pingable IPs

IP Address	ASN	Details

Pingable IPs

Important routers in AS5610


80.188.33.25	Prague, Czechia
194.228.190.205	Podolí, Czechia
80.188.228.7	Prague, Czechia
80.188.228.3	Prague, Czechia
90.182.199.92	Prague, Czechia
194.228.92.101	Prague, Czechia
83.208.221.1	Prague, Czechia
194.228.92.85	Prague, Czechia
90.182.199.221	Prague, Czechia
90.182.199.93	Prague, Czechia

Important routers in AS5610

Traceroute

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

$ traceroute -a -n -q1 -f7 -m15 88.103.153.162

traceroute to 88.103.153.162 (88.103.153.162): 15 hops max, 52 byte packets

7 [AS174] 130.117.48.169 1.978 ms

8 [AS174] 154.54.38.206 8.827 ms

9 [AS174] 154.54.77.130 18.186 ms

10 [AS174] 154.54.78.66 19.891 ms

11 [AS174] 149.11.118.5 23.418 ms

12 [AS5610] 194.228.21.200 21.241 ms

13 *

14 *

15 *

Measurement taken from

IPinfo ProbeNet in Amsterdam, NL

On October 2, 2026

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 AS5610 at robtex.

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AS5610

Summary

Ranking

Geolocation

Countries by IPv4 share

Activity

IP Ranges

IP Ranges

WHOIS

Hosted Domains

Places

Places

Peers

Upstreams

Downstreams

Pingable IPs

Other Pingable IPs

Pingable IPs

Important routers in AS5610

Important routers in AS5610

Traceroute

Related Networks

AS13199

AS197307

AS202556

AS202895

AS203629

What is an ASN?

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

Our IP tools

What is my IP?

Map IPs

Summarize IPs

Traceroute

Ranking

Important routers in AS5610

Geolocation

Countries by IPv4 share

Pingable IPs

Other Pingable IPs

Activity

IP Ranges

Places

AS13199

AS197307

AS202556

AS202895

AS203629

AS204064