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ASN Lookup Tool
AS17661 JPNIC-2Byte-ASBLOCK-AP

Powered By:
ASN Extended Info API & BGP Active Prefixes API
ASN Details
ASN
AS17661
Organisation
for assignment to JPNIC members
Name
JPNIC-2Byte-ASBLOCK-AP
Total IPv4 Addresses
29952
Total IPv4 Prefixes
97
Total IPv6 Prefixes
0
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#5,314 out of 77,427
Registry
Apnic
Registered Country
JP flag JP
Registered Country Name
Japan
Registered Date
NA
Registration Last Change
2019-05-13
Receiving From

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

ASN
Organisation
AS3356
US flagLevel 3 Parent, LLC
AS2516
JP flagKDDI CORPORATION
AS2914
US flagNTT America, Inc.
AS2497
JP flagInternet Initiative Japan Inc.
IPv4 Active Prefixes

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

Prefix27.147.96.0/20
Range From27.147.96.0
Range To27.147.111.255
Prefix103.2.29.0/24
Range From103.2.29.0
Range To103.2.29.255
Prefix119.235.225.0/24
Range From119.235.225.0
Range To119.235.225.255
Prefix119.235.226.0/23
Range From119.235.226.0
Range To119.235.227.255
Prefix119.235.228.0/22
Range From119.235.228.0
Range To119.235.231.255
Showing 5 of 97
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.