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ASN Lookup Tool
AS37905 BRASTEL-NET

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ASN Extended Info API & BGP Active Prefixes API
ASN Details
ASN
AS37905
Organisation
Brastel Co.,Ltd
Name
BRASTEL-NET
Total IPv4 Addresses
256
Total IPv4 Prefixes
1
Total IPv6 Prefixes
0
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#75,465 out of 77,680
Registry
Jpnic
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
AS2497
JP flagInternet Initiative Japan Inc.
AS2514
JP flagNTT PC Communications, Inc.
IPv4 Active Prefixes

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

Prefix202.173.5.0/24
Range From202.173.5.0
Range To202.173.5.255
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.