Autonomous System details

AS25512

CD-Telematika a.s.  ·  cdt.cz

Need more data or want to access it via API or data downloads? Sign up to get free access

Sign up for free ›

AS25512 – CD-Telematika a.s.

Field Value
Country Czechia
Website cdt.cz
Hosted domains 1,947
IPv4 addresses 117,760
IPv6 addresses 79,228,162,514,264,337,593,543,950,336
ASN type Hosting
Registry ripe
Allocated 23 years ago on Dec 17, 2002
Updated 6 months ago on Jul 29, 2025
Netblock Company Num of IPs
89.203.128.0/17 CD-Telematika a.s. 32,768
82.202.64.0/18 CD-Telematika a.s. 16,384
85.13.64.0/18 CD-Telematika a.s. 16,384
213.235.128.0/18 CD-Telematika a.s. 16,384
82.117.128.0/19 CD-Telematika a.s. 8,192
195.146.96.0/19 CD-Telematika a.s. 8,192
212.11.96.0/19 CD-Telematika a.s. 8,192
81.19.32.0/20 CD-Telematika a.s. 4,096
85.184.16.0/20 CD-Telematika a.s. 4,096
131.117.192.0/21 CD-Telematika a.s. 2,048
185.134.0.0/22 CD-Telematika a.s. 1,024

Netblock Company
2001:1a48::/32 CD-Telematika 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


                                                ASHandle:       AS25512
                                                OrgID:          AS25512
                                                ASName:         AS25512
                                                ASNumber:       AS25512
                                                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.

Hosted Domains

There are 1,947 domain names hosted across 534 IP addresses on this ASN.

IP Address Domain Domains on this IP
81.19.42.5 █████████ 96
82.202.105.206 ██████████ 94
89.203.160.25 ██████████ 45
89.203.197.145 ██████████ 44
85.13.80.72 ██████████ 43
195.146.100.73 ██████████ 43
81.19.42.107 ██████████ 42
195.146.111.115 ██████████ 41
81.19.42.113 ██████████ 40
212.11.104.13 ██████████ 36

Discover all domains hosted on a single IP address with IPinfo's powerful Hosted Domains (Reverse IP) solution.
Useful for Cybersecurity

Peers

There are 57 peers for this ASN.

Peers Name
AS1299 Arelion Sweden AB
AS13335 Cloudflare, Inc.
AS14840 BR.Digital Telecom
AS16509 Amazon.com, Inc.
AS174 Cogent Communications, LLC
AS1764 Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbH
AS197019 WEDOS Internet, a.s.
AS197550 Internet4you.cz, spol. s r.o.
AS198150 SIACOM JSC
AS200355 CadcaNet plus s. r. o.
AS200678 Komplet NET s.r.o.
AS200828 TERMS a.s.
AS20609 KAZA.cz s.r.o.
AS206159 Fresh Data s.r.o.
AS20708 SKODA AUTO a.s.
AS21215 UNITED GROUP NETWORK INFRASTRUCTURE d.o.o. Beograd
AS212483 LEVEL EIGHTY-SIX COMMUNICATIONS LTD
AS213387 TeSuNet s.r.o.
AS216450 Letiste Praha, a. s.
AS22356 Durand do Brasil Ltda
AS24482 SG.GS
AS29504 Freenet Liberec, z.s.
AS3161 IT PROFI s.r.o.
AS32590 Valve Corporation
AS33891 Core-Backbone GmbH
AS35046 OMEGA plus Chrudim s.r.o.
AS36236 NetActuate, Inc
AS39120 Convergenze S.p.A.
AS40994 Hohl IT e.U.
AS43507 RETE internet, s.r.o.
AS43614 Economia a.s.
AS43733 Viva Armenia CJSC
AS44306 OMONIA d.o.o.
AS4455 IX Reach Ltd
AS47131 PH, spol. s r. o.
AS47868 AS SUPRO-NET
AS48417 ITS akciova spolecnost
AS49544 i3D.net B.V
AS50975 KYOCERA AVX Components s.r.o.
AS51184 Fonira Telekom GmbH
AS51331 SychrovNET s.r.o
AS51449 Kabelova televize Usti nad Orlici, spol. s r. o.
AS51524 Ales Tesacek
AS53062 ALT | GRUPO BRASIL TECPAR
AS54113 Fastly, Inc.
AS56450 Alberon Letohrad s.r.o
AS56717 OG Soft s.r.o.
AS56827 mirnet s.r.o.
AS57463 NetIX Communications JSC
AS60275 RVTech s.r.o.
AS6204 INTERKVM HOST SRL
AS6461 Zayo Bandwidth
AS6663 Euroweb Romania S.R.L.
AS6881 NIX.CZ z.s.p.o.
AS6939 Hurricane Electric LLC
AS8218 Zayo Infrastructure France SA
AS9498 BHARTI Airtel Ltd.
Get this data and more insights on related domains, allocation dates, registry names, IP counts with IPinfo's IP-to-ASN product.

Upstreams

There are 4 upstreams for this ASN.

upstreams Name
AS1299 Arelion Sweden AB
AS174 Cogent Communications, LLC
AS6461 Zayo Bandwidth
AS6939 Hurricane Electric LLC
Get this data and more insights on related domains, allocation dates, registry names, IP counts with IPinfo's IP-to-ASN product.

Downstreams

There are 28 downstreams for this ASN.

Downstreams Name
AS1299 Arelion Sweden AB
AS174 Cogent Communications, LLC
AS197550 Internet4you.cz, spol. s r.o.
AS200355 CadcaNet plus s. r. o.
AS200678 Komplet NET s.r.o.
AS200828 TERMS a.s.
AS20609 KAZA.cz s.r.o.
AS206159 Fresh Data s.r.o.
AS20708 SKODA AUTO a.s.
AS213387 TeSuNet s.r.o.
AS216450 Letiste Praha, a. s.
AS3161 IT PROFI s.r.o.
AS35046 OMEGA plus Chrudim s.r.o.
AS43507 RETE internet, s.r.o.
AS43614 Economia a.s.
AS47131 PH, spol. s r. o.
AS47868 AS SUPRO-NET
AS48417 ITS akciova spolecnost
AS50975 KYOCERA AVX Components s.r.o.
AS51331 SychrovNET s.r.o
AS51449 Kabelova televize Usti nad Orlici, spol. s r. o.
AS51524 Ales Tesacek
AS56450 Alberon Letohrad s.r.o
AS56717 OG Soft s.r.o.
AS56827 mirnet s.r.o.
AS60275 RVTech s.r.o.
AS6461 Zayo Bandwidth
AS6881 NIX.CZ z.s.p.o.
Get this data and more insights on related domains, allocation dates, registry names, IP counts with IPinfo's IP-to-ASN product.

Pingable IPs

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

IP Address ASN Details
213.235.189.1 AS25512 CD-Telematika a.s. 3.22ms from Prague, CZ
212.11.109.1 AS25512 CD-Telematika a.s. 3.01ms from Prague, CZ
82.202.120.2 AS25512 CD-Telematika a.s. 0.88ms from Prague, CZ
131.117.199.1 AS25512 CD-Telematika a.s. 0.36ms from Prague, CZ
89.203.220.57 AS25512 CD-Telematika a.s. 0.26ms from Prague, CZ
82.202.70.81 AS25512 CD-Telematika a.s. 0.66ms from Prague, CZ
213.235.187.1 AS25512 CD-Telematika a.s. 3.26ms from Prague, CZ
82.202.71.46 AS25512 CD-Telematika a.s. 0.78ms from Prague, CZ
213.235.183.93 AS25512 CD-Telematika a.s. 0.61ms from Prague, CZ
2001:1a48:a200::1 AS25512 CD-Telematika a.s. 1.33ms from Prague, CZ
85.13.84.89 AS25512 CD-Telematika a.s. 3.37ms from Prague, CZ
2001:1a48:1111:2::3 AS25512 CD-Telematika a.s. 0.36ms from Prague, CZ
85.13.69.5 AS25512 CD-Telematika a.s. 3.63ms from Prague, CZ
2001:1a48:1112:9::2 AS25512 CD-Telematika a.s. 0.37ms from Prague, CZ
82.202.114.17 AS25512 CD-Telematika a.s. 7.13ms from Prague, CZ
82.202.102.2 AS25512 CD-Telematika a.s. 3.29ms from Prague, CZ
89.203.142.10 AS25512 CD-Telematika a.s. 0.61ms from Prague, CZ
82.117.153.254 AS25512 CD-Telematika a.s. 3.73ms from Prague, CZ
89.203.193.201 AS25512 CD-Telematika a.s. 0.44ms from Prague, CZ
213.235.186.1 AS25512 CD-Telematika a.s. 3.20ms from Prague, CZ
2001:1a48:2a:ffff::1 AS25512 CD-Telematika a.s. 1.68ms from Prague, CZ
195.146.106.1 AS25512 CD-Telematika a.s. 0.35ms from Prague, CZ
212.11.116.49 AS25512 CD-Telematika a.s. 2.50ms from Prague, CZ
195.146.127.125 AS25512 CD-Telematika a.s. 0.34ms from Prague, CZ
81.19.43.26 AS25512 CD-Telematika a.s. 1.47ms 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
4.246.253.24 AS8075 Microsoft Corporation 0.34ms from Ashburn, US
24.147.33.88 AS7922 Comcast Cable Communications, LLC 4.83ms from Boston, US
155.4.175.88 AS8473 Bahnhof AB 4.73ms from Falkenberg, SE
211.214.149.88 AS9318 SK Broadband Co Ltd 2.57ms from Incheon, KR
86.29.251.136 AS5089 Virgin Media Limited 5.61ms from London, GB
172.251.253.56 AS20001 Charter Communications Inc 7.03ms from Los Angeles, US
162.206.180.24 AS7018 AT&T Enterprises, LLC 2.74ms from Miami, US
13.234.102.168 AS16509 Amazon.com, Inc. 0.11ms from Mumbai, IN
126.119.107.120 AS17676 SoftBank Corp. 3.56ms from Osaka, JP
160.218.211.88 AS5610 O2 Czech Republic, a.s. 11.19ms from Prague, CZ
220.124.162.56 AS4766 Korea Telecom 4.53ms from Seoul, KR
220.88.81.88 AS4766 Korea Telecom 1.38ms from Seoul, KR
118.84.113.72 AS4134 CHINANET-BACKBONE 3.37ms from Shanghai, CN
122.225.115.120 AS58461 CT-HangZhou-IDC 8.54ms from Shanghai, CN
111.241.118.152 AS3462 Data Communication Business Group 1.37ms from Taipei, TW
110.43.209.200 AS23724 IDC, China Telecommunications Corporation 2.97ms from Tianjin, CN
87.64.130.136 AS5432 Proximus NV 2.34ms from Brussels, BE
192.150.115.200 AS600 OARnet 7.51ms from Columbus, US
87.166.190.104 AS3320 Deutsche Telekom AG 5.45ms from Frankfurt am Main, DE
136.244.13.24 AS397412 TACHUS INFRASTRUCTURE LLC 2.19ms from Houston, US
175.112.10.120 AS9318 SK Broadband Co Ltd 2.03ms from Incheon, KR
68.102.78.184 AS22773 Cox Communications Inc. 7.71ms from Kansas City, US
88.13.228.168 AS3352 TELEFONICA DE ESPANA S.A.U. 8.71ms from Madrid, ES
119.93.85.200 AS9299 Philippine Long Distance Telephone Company 1.25ms from Manila, PH
73.164.42.88 AS7922 Comcast Cable Communications, LLC 2.71ms from Minneapolis, US

Traceroute

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

$
traceroute -a -n -q1 -f2 -m19 213.235.165.65
traceroute to 213.235.165.65 (213.235.165.65): 19 hops max, 52 byte packets
3 *
4 *
6 [AS64049] 103.198.140.45 166.414 ms
7 *
8 [AS174] 130.117.1.150 180.847 ms
9 [AS174] 154.54.74.165 173.162 ms
10 [AS174] 130.117.51.42 180.895 ms
11 [AS174] 154.54.38.210 219.825 ms
12 [AS174] 154.54.77.134 190.037 ms
13 [AS174] 154.54.77.102 199.303 ms
14 [AS174] 149.6.24.34 185.549 ms
15 [AS25512] 81.19.34.29 184.975 ms
16 [AS25512] 85.13.96.58 191.474 ms
17 *
18 *
19 *
Measurement taken from IPinfo ProbeNet in Kolhapur, IN
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 AS25512 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.

IPinfo for all your IP geolocation needs

Our IP tools

Explore all tools
What is my IP

What is my IP

Test our data accuracy by viewing insights from your IP address.

See your IP address
Map IPs

Map IPs

Paste up to 500,000 IPs to see where they're located on a map.

Try Map IPs
Summarize IPs

Summarize IPs

Use our data visualization tool to create a visual overview of multiple IPs.

Try Summarize IPs