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ASN Lookup Tool
AS166 IDA-AS

Powered By:
ASN Extended Info API & BGP Active Prefixes API
ASN Details
ASN
AS166
Organisation
Institute for Defense Analyses
Name
IDA-AS
Total IPv4 Addresses
131584
Total IPv4 Prefixes
52
Total IPv6 Prefixes
0
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#1,590 out of 77,436
Registry
Arin
Registered Country
US flag US
Registered Country Name
United States of America (the)
Registered Date
1988-03-29
Registration Last Change
2022-05-20
Receiving From

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

ASN
Organisation
AS6939
US flagHurricane Electric LLC
AS22925
US flagAllied Telecom Group, LLC
IPv4 Active Prefixes

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

Prefix129.246.0.0/18
Range From129.246.0.0
Range To129.246.63.255
Prefix129.246.64.0/19
Range From129.246.64.0
Range To129.246.95.255
Prefix129.246.96.0/22
Range From129.246.96.0
Range To129.246.99.255
Prefix129.246.100.0/24
Range From129.246.100.0
Range To129.246.100.255
Prefix129.246.101.0/24
Range From129.246.101.0
Range To129.246.101.255
Showing 5 of 52
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.