CD-Telematika a.s.
AS25512 is CD-Telematika a.s. (cdt.cz). It announces 117,760 IPv4 addresses in 11 prefixes, and 1 IPv6 prefixes.
Czechia· RIPE· allocated 2002-12-17· isp
Where its space is
The IPv4 it announces that IP Geolocation places, by country. A /24 counts for the AS announcing most of it.
Registry record
Its ASN Whois record, as the registry publishes it.
- handle
- CDT-AS
- name
- CD-Telematika a.s.
- org
- ORG-CTa3-RIPE
- org name
- CD-Telematika a.s.
- org address
- Pernerova 2819/2a, 130 00,, Praha 3, CZECH REPUBLIC
- org country
- CZ
- country
- CZ
- source
- ripe
- status
- ASSIGNED
- created
- 2002-12-17
- updated
- 2025-07-29
- descr
- The Czech Republic
- remarks
- # TRANSIT / # Peering / # CUSTOMERS / End of list
- maintainer
- RIPE-NCC-END-MNT|CDT-MNT
- abuse name
- CDT hostmaster
- abuse email
- abuse@cdt.cz
- abuse phone
- +420 210021 699
- abuse kind
- role
What the databases see
Addresses each address-keyed database holds in the IPv4 it announces, as a share of that space, with its largest providers. Counts overlap.
- VPN IP857watchguard0.73%
- anyip, geonix, proxyseller0.36%
- floppydata0.00%
- floppydata, dataimpulse0.00%
- 0.00%
- None here
- Hosting IP41,72835.43%
- None here
- None here
- None here
- SSH IP1,2961.10%
- SMTP IP1310.11%
- 0.14%
IPv4 prefixes
Every IPv4 prefix BGP Route saw it announce. A prefix another AS also announces says so.
| PREFIX | COUNTRY | RPKI | PEERS | FIRST SEEN |
|---|---|---|---|---|
| 81.19.32.0/20 | Czechia | valid | 17 | 2026-10-02 |
| 82.117.128.0/19 | Czechia | valid | 17 | 2026-10-02 |
| 82.202.64.0/18 | Czechia | valid | 17 | 2026-10-02 |
| 85.13.64.0/18 | Czechia | valid | 17 | 2026-10-02 |
| 85.184.16.0/20 | Czechia | valid | 17 | 2026-10-02 |
| 89.203.128.0/17 | Czechia | valid | 17 | 2026-10-02 |
| 131.117.192.0/21 | Czechia | valid | 17 | 2026-10-02 |
| 185.134.0.0/22 | Czechia | valid | 17 | 2026-10-02 |
| 195.146.96.0/19 | Czechia | valid | 17 | 2026-10-02 |
| 212.11.96.0/19 | Czechia | valid | 17 | 2026-10-02 |
| 213.235.128.0/18 | Czechia | valid | 17 | 2026-10-02 |
IPv6 prefixes
Every IPv6 prefix BGP Route saw it announce.
| PREFIX | COUNTRY | RPKI | PEERS | FIRST SEEN |
|---|---|---|---|---|
| 2001:1a48::/32 | Czechia | valid | 20 | 2026-10-02 |
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