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ASN Lookup Tool
AS25512 CDT-AS

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ASN Extended Info API & BGP Active Prefixes API
ASN Details
ASN
AS25512
Organisation
CD-Telematika a.s.
Name
CDT-AS
Total IPv4 Addresses
117,752
Total IPv4 Prefixes
11
Total IPv6 Prefixes
1
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#1,817 out of 79,085
Registry
Ripe
Registered Country
CZ flagCZ
Registered Country Name
Czechia
Registered Date
2002-12-17
Registration Last Change
2025-07-29
Receiving From

The list of active Autonomous Systems (ASs) which send traffic to that ASN.

ASN
Organisation
AS174
US flagCogent Communications
AS6461
US flagZayo Bandwidth
AS6939
US flagHurricane Electric LLC
AS1299
SE flagArelion Sweden AB
AS49544
NL flagi3D.net B.V
Showing 5 of 13
Transit To

The list of active Autonomous Systems (ASs) which receive traffic from that ASN.

 

ASN
Organisation
AS43507
CZ flagRETE internet, s.r.o.
AS35046
CZ flagOMEGA plus Chrudim s.r.o.
AS48417
CZ flagITS akciova spolecnost
AS47868
CZ flagSUPRO, spol. s r.o.
AS197550
CZ flagInternet4you.cz, spol. s r.o.
Showing 5 of 24
IPv4 Active Prefixes

This provides the list of IPv4 address space routes/prefixes currently announced on Border Gateway Protocol (BGP).

PrefixRange FromRange To
81.19.32.0/2081.19.32.081.19.47.255
82.117.128.0/1982.117.128.082.117.159.255
82.202.64.0/1882.202.64.082.202.127.255
85.13.64.0/1885.13.64.085.13.127.255
85.184.16.0/2085.184.16.085.184.31.255
Showing 5 of 11
IPv6 Active Prefixes
PrefixRange FromRange To
2001:1a48::/322001:1a48::2001:1a48:ffff:ffff:ffff:ffff:ffff:ffff