Autonomous System details

AS49101

CEZNET s.r.o.  ·  ceznet.cz

Czechia

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AS49101 – CEZNET s.r.o.

Field Value
Country Czechia
Website ceznet.cz
Hosted domains 10,703
IPv4 addresses 16,384
IPv6 addresses 158,456,325,028,528,676,000,000,000,000
ASN type ISP
Registry ripe
Allocated 17 years ago on Apr 14, 2009
Updated 5 months ago on Nov 26, 2025

IP Ranges

Netblock Company Num of IPs
46.36.32.0/19 GTT a.s. 8,192
82.144.128.0/19 CEZNET s.r.o. 8,192
Netblock Company
2a02:d00::/32 CEZNET s.r.o.
2a02:25b0::/32 GTT a.s.
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WHOIS Details

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                                                ASHandle:       AS49101
                                                OrgID:          AS49101
                                                ASName:         AS49101
                                                ASNumber:       AS49101
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA
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Hosted Domains

There are 10,703 domain names hosted across 785 IP addresses on this ASN.

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IP Address Domain Domains on this IP
46.36.34.102 ████████ 9
82.144.138.60 ██████████ 6
82.144.132.149 ██████████ 5
82.144.132.86 ██████████ 4
46.36.34.98 █████████ 3
82.144.132.46 ██████████ 3
82.144.132.98 ██████████ 3
82.144.156.99 ██████████ 3
82.144.137.77 █████████ 2
82.144.137.125 ██████████ 2

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Peers

There are 4 peers for this ASN.

Peers Name
AS39791 Telco Pro Services, a. s.
AS42422 SecurityNet.cz s.r.o.
AS49244 Scancom s.r.o.
AS51449 Kabelova televize Usti nad Orlici, spol. s r. o.
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ASN API & Database

Upstreams

There is 1 peer for this ASN.

upstreams Name
AS39791 Telco Pro Services, a. s.
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ASN API & Database

Downstreams

There are 3 downstreams for this ASN.

Downstreams Name
AS42422 SecurityNet.cz s.r.o.
AS49244 Scancom s.r.o.
AS51449 Kabelova televize Usti nad Orlici, spol. s r. o.
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ASN API & Database

Pingable IPs

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

IP Address ASN Details
82.144.152.145 AS49101 CEZNET s.r.o. 11.42ms from Prague, CZ
82.144.144.1 AS49101 CEZNET s.r.o. 3.34ms from Prague, CZ
82.144.132.126 AS49101 CEZNET s.r.o. 6.00ms from Prague, CZ
46.36.34.92 AS49101 CEZNET s.r.o. 0.34ms from Prague, CZ
82.144.155.1 AS49101 CEZNET s.r.o. 7.81ms from Prague, CZ
82.144.133.211 AS49101 CEZNET s.r.o. 4.18ms from Prague, CZ
2a02:d00:0:3117::1 AS49101 CEZNET s.r.o. 0.36ms from Prague, CZ
46.36.59.251 AS49101 CEZNET s.r.o. 0.32ms from Prague, CZ
2a02:d00:c000::2 AS49101 CEZNET s.r.o. 6.15ms from Prague, CZ
46.36.43.6 AS49101 CEZNET s.r.o. 9.35ms from Prague, CZ
82.144.159.10 AS49101 CEZNET s.r.o. 7.74ms from Prague, CZ
82.144.142.2 AS49101 CEZNET s.r.o. 2.76ms from Prague, CZ
82.144.134.196 AS49101 CEZNET s.r.o. 12.51ms from Prague, CZ
46.36.42.1 AS49101 CEZNET s.r.o. 0.29ms from Prague, CZ
82.144.137.237 AS49101 CEZNET s.r.o. 4.78ms from Prague, CZ
82.144.138.126 AS49101 CEZNET s.r.o. 5.98ms from Prague, CZ
82.144.140.155 AS49101 CEZNET s.r.o. 0.29ms from Prague, CZ
82.144.139.18 AS49101 CEZNET s.r.o. 0.29ms from Prague, CZ
2a02:25b0:0:1689::2 AS49101 CEZNET s.r.o. 2.77ms from Prague, CZ
82.144.129.1 AS49101 CEZNET s.r.o. 2.90ms from Prague, CZ
46.36.32.73 AS49101 CEZNET s.r.o. 0.34ms from Prague, CZ
46.36.33.9 AS49101 CEZNET s.r.o. 0.46ms from Prague, CZ
82.144.157.1 AS49101 CEZNET s.r.o. 7.78ms from Prague, CZ
82.144.135.202 AS49101 CEZNET s.r.o. 7.61ms from Prague, CZ
82.144.158.1 AS49101 CEZNET s.r.o. 7.81ms 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
120.4.121.61 AS4837 CHINA UNICOM China169 Backbone 5.80ms from Beijing, CN
44.235.41.141 AS16509 Amazon.com, Inc. 0.38ms from Boardman, US
77.8.113.253 AS6805 Telefonica Germany GmbH & Co.OHG 0.98ms from Hamburg, DE
113.2.205.141 AS4837 CHINA UNICOM China169 Backbone 5.50ms from Harbin, CN
218.158.44.61 AS4766 Korea Telecom 4.12ms from Incheon, KR
221.143.49.173 AS9318 SK Broadband Co Ltd 1.02ms from Incheon, KR
149.160.149.13 AS27198 Indiana University 3.23ms from Indianapolis, US
217.68.65.141 AS21459 OneAdvanced It Services Limited 0.82ms from London, GB
158.41.124.253 AS25160 Vorboss Limited 0.67ms from London, GB
66.98.118.109 AS25820 IT7 Networks Inc 0.40ms from Los Angeles, US
4.71.145.61 AS3356 Level 3 Parent, LLC 0.71ms from New York City, US
60.153.152.221 AS17676 SoftBank Corp. 4.14ms from Osaka, JP
78.44.166.173 AS16019 Vodafone Czech Republic a.s. 0.64ms from Prague, CZ
115.11.71.189 AS4766 Korea Telecom 4.91ms from Seoul, KR
8.219.152.77 AS45102 Alibaba (US) Technology Co., Ltd. 0.74ms from Singapore, SG
116.86.218.141 AS55430 Starhub Ltd 1.34ms from Singapore, SG
202.47.4.253 AS24446 5G NETWORK OPERATIONS PTY LTD 0.37ms from Sydney, AU
202.100.147.237 AS140061 Qinghai Telecom 0.22ms from Xining, CN
123.55.105.173 AS4134 CHINANET BACKBONE 7.83ms from Zhengzhou, CN
91.181.1.173 AS5432 Proximus NV 1.75ms from Brussels, BE
201.198.244.93 AS11830 Instituto Costarricense de Electricidad y Telecom. 3.56ms from Curridabat, CR
178.24.6.253 AS3209 Vodafone GmbH 2.31ms from Hamburg, DE
123.215.161.77 AS9318 SK Broadband Co Ltd 1.60ms from Incheon, KR
102.33.157.189 AS327782 Metrofibre Networx 0.48ms from Johannesburg, ZA
66.209.178.253 AS40438 Canhost Inc. 0.29ms from Kelowna, CA

Traceroute

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

$
traceroute -a -n -q1 -m8 82.144.153.101
traceroute to 82.144.153.101 (82.144.153.101): 8 hops max, 52 byte packets
3 *
5 [AS49101] 82.144.140.94 15.036 ms
6 *
7 *
8 *
Measurement taken from IPinfo ProbeNet in Frankfurt am Main, DE
On

Related Networks

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 AS49101 at robtex.

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