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ASN Lookup Tool
AS4723 ASN-DOLPHIN

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ASN Extended Info API & BGP Active Prefixes API
ASN Details
ASN
AS4723
Organisation
DOLPHIN
Name
ASN-DOLPHIN
Total IPv4 Addresses
41,984
Total IPv4 Prefixes
7
Total IPv6 Prefixes
0
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#4,422 out of 78,154
Registry
Radb
Registered Country
JP flag JP
Registered Country Name
Japan
Registered Date
Registration Last Change
Receiving From

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

ASN
Organisation
AS4713
JP flagNTT Communications Corporation
AS2497
JP flagInternet Initiative Japan Inc.
AS2500
JP flagWIDE Project in Japan
AS7500
JP flag'M' Root DNS Server hosted by WIDE Project
IPv4 Active Prefixes

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

Prefix61.122.64.0/19
Range From61.122.64.0
Range To61.122.95.255
Prefix175.100.208.0/23
Range From175.100.208.0
Range To175.100.209.255
Prefix175.100.210.0/23
Range From175.100.210.0
Range To175.100.211.255
Prefix175.100.224.0/19
Range From175.100.224.0
Range To175.100.255.255
Prefix210.135.64.0/19
Range From210.135.64.0
Range To210.135.95.255
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.