AS25512 CDT-AS CD-Telematika a.s.
🇨🇿Org handle: ORG-CTa3-RIPE
The Czech Republic
RIPE NCCallocated
Announced Prefixes (BGP)
12total
11 IPv41 IPv6
IPv4 Addresses
Allocated (RIR)117,760
Announced (BGP)117,760
IPv6 Addresses
Allocated (RIR)7.9×10²⁸
Announced (BGP)7.9×10²⁸
Routing hygiene
Score 7/100 · Low riskRPKI ROA coverage
100%
no RPKI invalid prefixes
IRR route objects
100%
no origin mismatches
Hijack signals
0
0 announced against others' ROAs, 0 own announced by others
Upstreams
2
diversity 28/100
- Routes concentrated on one upstream (83% of routes)
Based on 12 announced prefixes, updated daily (2026-10-25). How the score works · RPKI explained
Listed on the threat map (2026-10-25)
Large hosting providers appear because attackers rent their servers, not necessarily because of the operator.
Announced Prefixes
(BGP)12|
Prefix | RPKI | IRR | Last Seen |
|---|---|---|---|
| Valid | RIPE | 2026-10-25 | |
| Valid | RIPE | 2026-10-25 | |
| Valid | RIPE | 2026-10-25 | |
| Valid | RIPE | 2026-10-25 | |
| Valid | RIPE | 2026-10-25 | |
| Valid | RIPE | 2026-10-25 | |
| Valid | RIPE | 2026-10-25 | |
| Valid | RIPE | 2026-10-25 | |
| Valid | RIPE | 2026-10-25 | |
| Valid | RIPE | 2026-10-25 |
1-10 of 12
1 / 2
Allocated Prefixes
(RIR)43Prefix | Country | RIR | Status |
|---|---|---|---|
| 81.19.32.0/20 | 🇨🇿 CZ | RIPENCC | allocated |
| 82.117.128.0/19 | 🇨🇿 CZ | RIPENCC | allocated |
| 82.202.64.0/18 | 🇨🇿 CZ | RIPENCC | allocated |
| 85.13.64.0/18 | 🇨🇿 CZ | RIPENCC | allocated |
| 85.184.16.0/20 | 🇨🇿 CZ | RIPENCC | allocated |
| 89.203.128.0/17 | 🇨🇿 CZ | RIPENCC | allocated |
| 131.117.192.0/21 | 🇨🇿 CZ | RIPENCC | allocated |
| 185.134.0.0/22 | 🇨🇿 CZ | RIPENCC | allocated |
| 195.146.96.0/19 | 🇨🇿 CZ | RIPENCC | allocated |
| 212.11.96.0/19 | 🇨🇿 CZ | RIPENCC | allocated |
1-10 of 43
1 / 5
All 12 announced prefixes of AS25512 →
BGP Neighbours
(seen in AS paths)Upstreams (2)
Networks AS25512 hands its own prefixes to: transit providers, or peers at an exchange.
Downstreams (19)
Networks whose own prefixes AS25512 passes on: usually its customers.
- AS216450Prgaero Letiste Praha, A. S5
- AS48417ITS CZ ITS Akciova Spolecnost4
- AS20609Kazaczsro KAZA.Cz S.R.O3
- AS43614ECONOMIA CZ Economia A.S3
- AS47868SUPRO AVONET, S.R.O3
- AS43507RETE Internet, S.R.O2
- AS56450ALBERON Letohrad S.R.O2
- AS200828THOSTING TERMS A.S2
- AS206159Cz Fresh Data S.R.O2
- AS3161ASITPROFI IT PROFI S.R.O1
- AS6881NIXCZ NIX.CZ Z.S.P.O1
- AS20708SKODA AUTO SKODA AUTO A.S1
- AS51524ASNETDELUXE Ales Tesacek1
- AS56717RESAL OG Soft S.R.O1
- AS56827ASMIRNETCZ Mirnet S.R.O1
- AS60275RVTECH S.R.O1
- AS197550ASINET4YOU Internet4you.Cz, Spol. S R.O1
- AS200355CADCANET Plus S. R. O1
- AS213387TESUNET S.R.O1
Abuse Contact
+31205354444
External Links
Learn more
- What is an ASN?Autonomous systems, ASN ranges and how they are assigned
- RPKI and route origin validationWhat the RPKI badges on the prefix list mean
- How to run an ASPA checkVerify the upstream providers listed above
- IPv4 transfers in the RIPE NCC regionMonthly volume and the latest registry transfers
- ASN data in AI agents and SIEMMCP server and API integrations
API
Open https://api.ipctl.io/v1/asn/25512Returns ASN details, announced prefixes, and BGP routing data.
curl -s "https://api.ipctl.io/v1/asn/25512" | jq