AS25512 — CD-Telematika a.s. CDT
AS Name: CDT-AS
Description: The Czech Republic
Organization: ORG-CTa3-RIPE
Registry: RIPE
Imports from (41)
AS1299AS174AS6881AS47200AS47627AS21241AS34040AS35046AS43507AS44424AS47767AS47868AS48417AS56450AS197550AS49101AS51524AS56827AS198403AS56717AS197698AS47131AS43614AS56456AS20708AS62178AS49488AS60275AS3161AS20609AS30738AS50975AS62159AS197019AS200155AS200355AS201457AS42908AS-NORDICTELECOMAS213387AS206159
Exports to (41)
⚠️ CIRCL BGP Security Rank: 0.0996% (position 4516)
aut-num: AS25512
as-name: CDT-AS
descr: The Czech Republic
org: ORG-CTa3-RIPE
remarks: # TRANSIT
import: from AS1299 accept ANY # TELIA
export: to AS1299 announce AS-CDT-NETWORKS
import: from AS174 accept ANY # COGENT
export: to AS174 announce AS-CDT-NETWORKS
remarks: # Peering
import: from AS6881 accept ANY # NIXCZ
export: to AS6881 announce AS-CDT-NETWORKS
import: from AS47200 accept ANY # NIX Routeservers
export: to AS47200 announce ANY
import: from AS47627 accept ANY # NIXSK Routeservers
export: to AS47627 announce ANY
remarks: # CUSTOMERS
import: from AS6881 accept ANY # NIX
export: to AS6881 announce ANY
import: from AS21241 accept ANY # MUZO
export: to AS21241 announce ANY
import: from AS34040 accept ANY # TTNET
export: to AS34040 announce ANY
import: from AS35046 accept ANY # Omega
export: to AS35046 announce ANY
import: from AS43507 accept ANY # RETE
export: to AS43507 announce ANY
import: from AS44424 accept ANY # MALL
export: to AS44424 announce ANY
import: from AS47767 accept ANY # RCO
export: to AS47767 announce ANY
import: from AS47868 accept ANY # SUPRO
export: to AS47868 announce ANY
import: from AS48417 accept ANY # ITS
export: to AS48417 announce ANY
import: from AS56450 accept ANY # ALBERON
export: to AS56450 announce ANY
import: from AS197550 accept ANY # INTERNET4YOU
export: to AS197550 announce ANY
import: from AS49101 accept ANY # KTCZ
export: to AS49101 announce ANY
import: from AS51524 accept ANY # ATESACEK
export: to AS51524 announce ANY
import: from AS56827 accept ANY # MIRNET SRO
export: to AS56827 announce ANY
import: from AS198403 accept ANY # MATRIGO
export: to AS198403 announce ANY
import: from AS56717 accept ANY # RESAL
export: to AS56717 announce ANY
import: from AS197698 accept ANY # D-H-T
export: to AS197698 announce ANY
import: from AS47131 accept ANY # PHSPOL
export: to AS47131 announce ANY
import: from AS43614 accept ANY # ECONOMIA
export: to AS43614 announce ANY
import: from AS56456 accept ANY # C2NET
export: to AS56456 announce ANY
import: from AS20708 accept ANY # SKODA AUTO a.s.
export: to AS20708 announce ANY
import: from AS62178 accept ANY # MASTER IT
export: to AS62178 announce ANY
import: from AS49488 accept ANY # TLD via NIX
export: to AS49488 announce ANY
import: from AS60275 accept ANY # RVTECH
export: to AS60275 announce ANY
import: from AS3161 accept ANY # IT Profi Vimperk
export: to AS3161 announce ANY
import: from AS20609 accept ANY # Kaza
export: to AS20609 announce ANY
import: from AS30738 accept ANY # Netart
export: to AS30738 announce ANY
import: from AS50975 accept ANY # AVX_AS
export: to AS50975 announce ANY
import: from AS62159 accept ANY # HAPPY Technik
export: to AS62159 announce ANY
import: from AS197019 accept ANY # Wedos
export: to AS197019 announce ANY
import: from AS200155 accept ANY # TCPISEK-CZ
export: to AS200155 announce ANY
import: from AS200355 accept ANY # CADCANET
export: to AS200355 announce ANY
import: from AS201457 accept ANY # KOOPERATIVA-AS
export: to AS201457 announce ANY
import: from AS42908 accept ANY # AS-NORDICTELECOM
export: to AS42908 announce ANY
import: from AS213387 accept ANY # TESUNET
export: to AS213387 announce ANY
import: from AS206159 accept ANY # Fresh Data
export: to AS206159 announce ANY
remarks: End of list
admin-c: DUMY-RIPE
tech-c: DUMY-RIPE
status: ASSIGNED
mnt-by: RIPE-NCC-END-MNT
mnt-by: CDT-MNT
created: 2002-12-17T14:28:40Z
last-modified: 2025-07-29T11:30:12Z
source: RIPE
remarks: ****************************
remarks: * THIS OBJECT IS MODIFIED
remarks: * Please note that all data that is generally regarded as personal
remarks: * data has been removed from this object.
remarks: * To view the original object, please query the RIPE Database at:
remarks: * http://www.ripe.net/whois
remarks: ****************************
Direct Membership
Macros that directly list AS25512 as a member:
AS8251:AS-NIX-PEERINGS(49 members)
AS-CESNET-NIX-PEERS(50 members)
AS-CDT-NETWORKS(56 members)
AS-TO2-NIX-PEER(63 members)
AS24971:AS-MAI-NIX-PEER(74 members)
AS42000:AS-NIXCZ-PEERINGS(80 members)
Expanded Membership
All macros containing AS25512 (directly or via nested macros): 43
Show 43 macros
AS8251:AS-NIX-PEERINGS(49 ASNs)
AS-TO2-NIX-PEER(63 ASNs)
AS-CDT-NETWORKS(70 ASNs)
AS42000:AS-NIXCZ-PEERINGS(80 ASNs)
AS-INTEROUTE(43,471 ASNs)
AS-NIXSK-RSCLIENTS(55,989 ASNs)
AS47627:AS-NIXSK-RSCLIENTS(56,033 ASNs)
AS6881:AS-NIXCZ-CLIENTS(75,302 ASNs)
AS-NIXCZ-CLIENTS(75,315 ASNs)
AS-NIXCZ-RSCLIENTS(81,401 ASNs)
AS208060:AS-PEERS(81,401 ASNs)
AS47110:AS-PEERS(81,401 ASNs)
AS47200:AS-NIXCZ-RSCLIENTS(83,073 ASNs)
AS24971:AS-MAI-NIX-PEER(83,081 ASNs)
AS-GTTCUST6(83,984 ASNs)
AS-TINETCUST6(83,984 ASNs)
AS-GTTCUST(84,520 ASNs)
AS-TINETCUST(84,520 ASNs)
AS-GTT(84,608 ASNs)
AS-TINET(84,608 ASNs)
AS-TISCALI(84,608 ASNs)
AS-CESNET-NIX-PEERS(85,295 ASNs)
AS-TELIANETEU-V6(85,444 ASNs)
AS1299:AS-TWELVE99-EU-V6(85,444 ASNs)
AS-TELIANETEU(85,632 ASNs)
AS1299:AS-TWELVE99-EU-V4(85,632 ASNs)
AS-TELIANET-V6(92,705 ASNs)
AS1299:AS-TWELVE99-V6(92,705 ASNs)
AS-TELIANET(92,989 ASNs)
AS1299:AS-TWELVE99-V4(92,989 ASNs)
AS-BCIX(93,003 ASNs)
AS16374:AS-BCIX-ALL(93,003 ASNs)
AS1299:AS-TWELVE99(93,076 ASNs)
AS-TIXZH(94,757 ASNs)
AS-DECIX(96,509 ASNs)
AS-NFON-DECIX-PEERS-V4(96,509 ASNs)
AS-NFON-DECIX-PEERS-V6(96,509 ASNs)
AS6695:AS-DECIX-FRA(96,509 ASNs)
AS-ST1-IXPS(96,670 ASNs)
AS-DECIX-V6(100,277 ASNs)
AS6695:AS-DECIX-FRA-V6(100,277 ASNs)
AS-CLOUD-IX-PRO(100,911 ASNs)
AS-MERKEL-PEERS(100,925 ASNs)
Upstream AS Paths
24 unique paths, avg length 1.8
AS Looking Glass
Upstream paths (matching graph above)
All 24 Upstream Paths
Complete list of all observed paths
AS25512 IPv4 Address Subnets (11)
| 89.203.128.0/17 | 🇨🇿 CZ | CD-Telematika a.s. The Czech Republic | CDT-AS |
| 213.235.128.0/18 | 🇨🇿 CZ | CD-Telematika a.s. The Czech Republic | CDT-AS |
| 82.202.64.0/18 | 🇨🇿 CZ | CD-Telematika a.s. The Czech Republic | CDT-AS |
| 85.13.64.0/18 | 🇨🇿 CZ | CD-Telematika a.s. The Czech Republic | CDT-AS |
| 195.146.96.0/19 | 🇨🇿 CZ | CD-Telematika a.s. The Czech Republic | CDT-AS |
| 212.11.96.0/19 | 🇨🇿 CZ | CD-Telematika a.s. The Czech Republic | CDT-AS |
| 82.117.128.0/19 | 🇨🇿 CZ | CD-Telematika a.s. The Czech Republic | CDT-AS |
| 81.19.32.0/20 | 🇨🇿 CZ | CD-Telematika a.s. The Czech Republic | CDT-AS |
| 85.184.16.0/20 | 🇨🇿 CZ | CD-Telematika a.s. The Czech Republic | CDT-AS |
| 131.117.192.0/21 | 🇨🇿 CZ | CD-Telematika a.s. The Czech Republic | CDT-AS |
AS25512 IPv6 Address Subnets (1)
| 2001:1a48::/32 | 🇨🇿 CZ | CD-Telematika a.s. The Czech Republic | CDT-AS |