Autonomous System details

AS25512

CD-Telematika a.s.  ·  cdt.cz

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AS25512 – CD-Telematika a.s.

Field Value
Country Czechia
Website cdt.cz
Hosted domains 1,957
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 8 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.
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WHOIS Details


                                                ASHandle:       AS25512
                                                OrgID:          AS25512
                                                ASName:         AS25512
                                                ASNumber:       AS25512
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA

                                            
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Hosted Domains

There are 1,957 domain names hosted across 544 IP addresses on this ASN.

IP Address Domain Domains on this IP
81.19.42.5 ██████████ 95
82.202.105.206 ██████████ 94
89.203.160.25 █████████ 45
89.203.197.145 ██████████ 45
195.146.100.73 ██████████ 43
85.13.80.72 ██████████ 42
81.19.42.107 ██████████ 42
195.146.111.115 ██████████ 41
212.11.104.13 ██████████ 40
81.19.42.113 ██████████ 40

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Useful for Cybersecurity

Peers

There are 55 peers for this ASN.

Peers Name
AS1239 Cogent Communications, LLC
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
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
AS21241 Global Payments Europe, s.r.o.
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.
AS4455 IX Reach Ltd
AS47131 PH, spol. s r. o.
AS47232 ISP Alliance a.s.
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
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
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 29 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.
AS21241 Global Payments Europe, s.r.o.
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

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

IP Address ASN Details
89.203.213.1 AS25512 CD-Telematika a.s. 3.24ms from Prague, CZ
82.202.92.5 AS25512 CD-Telematika a.s. 0.36ms from Prague, CZ
82.202.115.193 AS25512 CD-Telematika a.s. 1.97ms from Prague, CZ
82.202.86.17 AS25512 CD-Telematika a.s. 2.46ms from Prague, CZ
212.11.118.135 AS25512 CD-Telematika a.s. 1.83ms from Prague, CZ
89.203.130.6 AS25512 CD-Telematika a.s. 3.92ms from Prague, CZ
82.202.74.85 AS25512 CD-Telematika a.s. 2.34ms from Prague, CZ
213.235.160.130 AS25512 CD-Telematika a.s. 6.94ms from Prague, CZ
2001:1a48:2::2 AS25512 CD-Telematika a.s. 6.01ms from Prague, CZ
85.13.69.5 AS25512 CD-Telematika a.s. 3.67ms from Prague, CZ
89.203.234.26 AS25512 CD-Telematika a.s. 4.42ms from Prague, CZ
89.203.172.1 AS25512 CD-Telematika a.s. 3.23ms from Prague, CZ
89.203.251.114 AS25512 CD-Telematika a.s. 0.46ms from Prague, CZ
213.235.186.1 AS25512 CD-Telematika a.s. 3.22ms from Prague, CZ
82.202.66.166 AS25512 CD-Telematika a.s. 0.48ms from Prague, CZ
89.203.222.49 AS25512 CD-Telematika a.s. 0.26ms from Prague, CZ
212.11.127.91 AS25512 CD-Telematika a.s. 0.96ms from Prague, CZ
82.117.153.254 AS25512 CD-Telematika a.s. 3.71ms from Prague, CZ
85.13.78.5 AS25512 CD-Telematika a.s. 0.36ms from Prague, CZ
89.203.230.92 AS25512 CD-Telematika a.s. 0.42ms from Prague, CZ
2001:1a48:2a:ffff::1 AS25512 CD-Telematika a.s. 1.68ms from Prague, CZ
85.13.117.170 AS25512 CD-Telematika a.s. 0.31ms from Prague, CZ
89.203.202.2 AS25512 CD-Telematika a.s. 0.37ms from Prague, CZ
195.146.112.33 AS25512 CD-Telematika a.s. 0.36ms from Prague, CZ
82.117.152.252 AS25512 CD-Telematika a.s. 3.88ms 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
82.78.203.24 AS8708 DIGI ROMANIA S.A. 0.74ms from Bucharest, RO
104.155.144.104 AS396982 Google LLC 0.12ms from Council Bluffs, US
23.121.37.216 AS7018 AT&T Enterprises, LLC 10.62ms from Miami, US
109.168.191.24 AS12389 PJSC Rostelecom 17.61ms from Moscow, RU
218.71.36.152 AS4134 CHINANET-BACKBONE 8.13ms from Ningbo, CN
186.179.126.136 AS18809 Cable Onda 9.34ms from Panama, PA
174.54.238.56 AS7922 Comcast Cable Communications, LLC 17.29ms from Reston, US
59.86.248.184 AS17839 LG HelloVision Corp. 2.20ms from Seoul, KR
125.45.95.72 AS4837 CHINA UNICOM China169 Backbone 3.64ms from Zhengzhou, CN
152.44.58.248 AS12208 TruVista Communications 4.58ms from Atlanta, US
223.206.62.56 AS45758 Triple T Broadband Public Company Limited 2.85ms from Bangkok, TH
16.28.97.216 AS16509 Amazon.com, Inc. 0.16ms from Cape Town, ZA
175.16.133.88 AS4837 CHINA UNICOM China169 Backbone 3.53ms from Changchun, CN
62.91.173.56 AS20686 Bisping & Bisping GmbH & Co KG 4.02ms from Frankfurt am Main, DE
180.87.214.216 AS136907 HUAWEI CLOUDS 1.16ms from Hong Kong, HK
16.163.225.88 AS16509 Amazon.com, Inc. 0.14ms from Hong Kong, HK
174.74.79.40 AS22773 Cox Communications Inc. 8.42ms from Kansas City, US
86.149.39.88 AS2856 British Telecommunications PLC 5.32ms from London, GB
204.1.109.8 AS2914 NTT America, Inc. 0.23ms from Los Angeles, US
217.67.73.40 AS2914 NTT America, Inc. 0.27ms from Paris, FR
86.217.170.104 AS3215 Orange S.A. 9.19ms from Paris, FR
210.117.87.168 AS9318 SK Broadband Co Ltd 3.43ms from Seoul, KR
49.112.85.136 AS4134 CHINANET-BACKBONE 9.12ms from UEruemqi, CN
77.116.147.72 AS25255 ==> TELE2 AUSTRIA <== 9.11ms from Vienna, AT
79.191.70.152 AS5617 Orange Polska Spolka Akcyjna 2.07ms from Warsaw, PL

Traceroute

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

$
traceroute -a -n -q1 -m5 195.146.126.76
traceroute to 195.146.126.76 (195.146.126.76): 5 hops max, 52 byte packets
1 [AS15169] 142.251.248.129 124.373 ms
2 [AS15169] 192.178.98.38 124.199 ms
3 *
4 *
5 *
Measurement taken from IPinfo ProbeNet in Dallas, US
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.

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