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ASN Lookup Tool
AS203577 FS

Powered By:
ASN Extended Info API & BGP Active Prefixes API
ASN Details
ASN
AS203577
Organisation
Fumon Shimadate
Name
FS
Total IPv4 Addresses
256
Total IPv4 Prefixes
1
Total IPv6 Prefixes
10
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#78,777 out of 79,076
Registry
Ripe
Registered Country
JP flagJP
Registered Country Name
Japan
Registered Date
2022-07-29
Registration Last Change
2025-07-13
Receiving From

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

ASN
Organisation
AS6939
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AS53667
US flagFranTech Solutions
AS63798
JP flagIndustrial Cyber Security Center of Excellence I..
AS150369
JP flagTelHi Corporation Niu-Building 2F,2-1-17,Nihonba..
IPv4 Active Prefixes

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

PrefixRange FromRange To
216.146.29.0/24216.146.29.0216.146.29.255
IPv6 Active Prefixes
PrefixRange FromRange To
2a06:41:8100::/422a06:41:8100::2a06:41:813f:ffff:ffff:ffff:ffff:ffff
2a06:41:8140::/432a06:41:8140::2a06:41:815f:ffff:ffff:ffff:ffff:ffff
2a06:41:8160::/442a06:41:8160::2a06:41:816f:ffff:ffff:ffff:ffff:ffff
2a06:41:8170::/482a06:41:8170::2a06:41:8170:ffff:ffff:ffff:ffff:ffff
2a06:41:8171::/482a06:41:8171::2a06:41:8171:ffff:ffff:ffff:ffff:ffff
Showing 5 of 10