ASN Lookup Tool
AS23623 CHUO-U

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ASN Extended Info API & BGP Active Prefixes API
ASN Details
ASN
AS23623
Organisation
Chuo University
Name
CHUO-U
Total IPv4 Addresses
65536
Total IPv4 Prefixes
1
Total IPv6 Prefixes
0
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#3,139 out of 76,964
Registry
Jpnic
Registered Country
JP flag JP
Registered Country Name
Japan
Registered Date
NA
Registration Last Change
NA
Receiving From

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

ASN
Organisation
JP flagfor assignment to JPNIC members
IPv4 Active Prefixes

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

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.