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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
117,632
Total IPv4 Prefixes
11
Total IPv6 Prefixes
1
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#1,787 out of 79,187
Registry
Ripe
Registered Country
CZ flagCZ
Registered Country Name
Czechia
Registered Date
2002-12-17
Registration Last Change
2025-07-29
Receiving From
ASN
Organisation
AS174
US flagCogent Communications, LLC
AS6461
US flagZayo Bandwidth
AS6939
US flagHurricane Electric LLC
AS1299
SE flagArelion Sweden AB
AS49544
NL flagi3D.net B.V
Showing 5 of 14
Transit To
ASN
Organisation
AS43507
CZ flagRETE internet, s.r.o.
AS48417
CZ flagITS akciova spolecnost
AS47868
CZ flagSUPRO, spol. s r.o.
AS197550
CZ flagInternet4you.cz, spol. s r.o.
AS56450
CZ flagAlberon Letohrad s.r.o
Showing 5 of 22
IPv4 Active Prefixes
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