AS25512 CD-Telematika a.s. 🇨🇿 CZ

Announcing 12 prefixes, seen at the RIS collectors.

IPv4 prefixes

117,760 (460 × /24)

IPv6 prefixes

1 × /32

Upstreams

transit providers observed

Peers

settlement-free adjacencies

Downstreams

transit customers observed

Customer cone

ASes reachable through it

Registry and operator data

AS number: AS25512
Name: CD-Telematika a.s.
Organisation: CD-Telematika a.s.
Country: 🇨🇿 CZ
RIR: RIPENCC
Allocated: 2002-12-17
Network type: NSP
Traffic levels: 100-200Gbps
Scope: Europe
Peering policy: Open
IRR as-set: AS-CDT-NETWORKS
Website: http://www.cdt.cz
Looking glass: https://lg.cdt.cz
PeeringDB: net/6371
Exchanges: 2
Facilities: 2

RPKI coverage of this AS

Its own announcements, validated against the current ROA set

12 valid (100.0%) 0 invalid (0.0%) 0 no ROA (0.0%)

Upstreams

Networks seen providing transit to this one

Network	Country	Cone	IPv4 prefixes	Paths	Source
AS1299 Arelion (fka. Telia Carrier)	🇸🇪 SE	68,823	133	720	CAIDA
AS174 Cogent Communications, LLC	🇺🇸 US	66,170	3,955	510	CAIDA

Peers

Adjacencies that look settlement-free rather than transit

Network	Country	Cone	IPv4 prefixes	Paths	Source
AS6939 Hurricane Electric LLC	🇺🇸 US	54,742	185	223	CAIDA
AS6461 Zayo Bandwidth	🇺🇸 US	54,220	214	18	CAIDA
AS24482 SG.GS	🇸🇬 SG	4,871	45	38	CAIDA
AS1764 Next Layer Telecommunications	🇦🇹 AT	391	69	29	CAIDA
AS8218 Zayo Europe	🇫🇷 FR	342	19	12	CAIDA
AS29504 Freenet Liberec, z.s.	🇨🇿 CZ	0	1	44	CAIDA

Downstreams

Networks this one appears to provide transit to

Network	Country	Cone	IPv4 prefixes	Paths	Source
AS6881 NIX.CZ z.s.p.o.	🇨🇿 CZ	5	3	12	CAIDA
AS51331 SychrovNET s.r.o	🇨🇿 CZ	3	7	122	CAIDA
AS35046 OMEGA plus Chrudim s.r.o.	🇨🇿 CZ	3	3	5	CAIDA
AS20609 KAZA.cz s.r.o.	🇨🇿 CZ	2	2	99	CAIDA
AS43614 Economia a.s.	🇨🇿 CZ	0	2	115	CAIDA
AS56450 Alberon Letohrad s.r.o	🇨🇿 CZ	0	2	100	CAIDA
AS206159 Fresh Data s.r.o.	🇨🇿 CZ	0	1	74	CAIDA
AS200828 TERMS a.s.	🇨🇿 CZ	0	1	67	CAIDA
AS43507 RETE internet, s.r.o.	🇨🇿 CZ	0	2	61	CAIDA
AS47868 AVONET, s.r.o.	🇨🇿 CZ	0	2	59	CAIDA
AS51524 Ales Tesacek	🇨🇿 CZ	0	1	41	CAIDA
AS197550 Internet4you.cz, spol. s r.o.	🇨🇿 CZ	0	1	41	CAIDA
AS3161 IT PROFI s.r.o.	🇨🇿 CZ	0	1	41	CAIDA
AS56827 mirnet s.r.o.	🇨🇿 CZ	0	1	41	CAIDA
AS200355 CadcaNet plus s. r. o.	🇸🇰 SK	0	3	40	CAIDA
AS47131 PH, spol. s r. o.	🇨🇿 CZ	0	3	36	CAIDA
AS50975 KYOCERA AVX Components s.r.o.	🇨🇿 CZ	0	1	36	CAIDA
AS56717 OG Soft s.r.o.	🇨🇿 CZ	0	1	29	CAIDA
AS213387 TeSuNet s.r.o.	🇨🇿 CZ	0	1	29	CAIDA
AS20708 SKODA AUTO a.s.	🇨🇿 CZ	0	3	26	CAIDA
AS216450 Letiste Praha, a. s.	🇨🇿 CZ	0	5	15	CAIDA
AS60275 RVTech s.r.o.	🇨🇿 CZ	0	0	11	inferred
AS48417 ITS akciova spolecnost	🇨🇿 CZ	0	9	6	CAIDA
AS51449 Kabelova televize Usti nad Orlici, spol. s r. o.	🇨🇿 CZ	0	4	4	CAIDA

Relationships marked inferred come from where the two networks sit on the AS paths the collectors see, which is a guess and is wrong for some of them. The rest are stated by CAIDA's published inference over a much wider set of collectors.