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ASN Lookup Tool
AS5610 O2-CZECH-REPUBLIC

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ASN Extended Info API & BGP Active Prefixes API
ASN Details
ASN
AS5610
Organisation
O2 Czech Republic, a.s.
Name
O2-CZECH-REPUBLIC
Total IPv4 Addresses
1541593
Total IPv4 Prefixes
96
Total IPv6 Prefixes
7
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#269 out of 77,273
Registry
Ripe
Registered Country
CZ flag CZ
Registered Country Name
Czechia
Registered Date
2002-07-22
Registration Last Change
2023-01-10
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 9
Transit To

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

 

ASN
Organisation
AS65125
WORLD flagPrivate Use AS
AS59747
CZ flagNIX.CZ z.s.p.o.
AS25238
CZ flagMONETA Money Bank, a.s.
AS55002
US flagF5, Inc.
AS28952
SK flagO2 Business Services, a.s
Showing 5 of 39
IPv4 Active Prefixes

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

Prefix5.23.39.0/24
Range From5.23.39.0
Range To5.23.39.255
Prefix37.188.128.0/17
Range From37.188.128.0
Range To37.188.255.255
Prefix80.188.0.0/19
Range From80.188.0.0
Range To80.188.31.255
Prefix80.188.32.0/21
Range From80.188.32.0
Range To80.188.39.255
Prefix80.188.40.0/24
Range From80.188.40.0
Range To80.188.40.255
Showing 5 of 96
IPv6 Active Prefixes
Prefix2001:67c:dd4::/48
Range From2001:67c:dd4::
Range To2001:67c:dd4:ffff:ffff:ffff:ffff:ffff
Prefix2001:41d8::/32
Range From2001:41d8::
Range To2001:41d8:ffff:ffff:ffff:ffff:ffff:ffff
Prefix2a00:1028::/32
Range From2a00:1028::
Range To2a00:1028:ffff:ffff:ffff:ffff:ffff:ffff
Prefix2a00:1029::/32
Range From2a00:1029::
Range To2a00:1029:ffff:ffff:ffff:ffff:ffff:ffff
Prefix2a00:102a::/31
Range From2a00:102a::
Range To2a00:102b:ffff:ffff:ffff:ffff:ffff:ffff
Showing 5 of 7
Autonomous System (AS) is a network (or collection of networks) that are all managed and supervised by a single entity or organisation. This tool provides a comprehensive ownership and connectivity report for any given AS number.