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ASN Lookup Tool
AS32666 CWRU-AS-1

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ASN Extended Info API & BGP Active Prefixes API
ASN Details
ASN
AS32666
Organisation
Case Western Reserve University
Name
CWRU-AS-1
Total IPv4 Addresses
66304
Total IPv4 Prefixes
19
Total IPv6 Prefixes
1
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#2,796 out of 77,276
Registry
Arin
Registered Country
US flag US
Registered Country Name
United States of America (the)
Registered Date
2004-06-25
Registration Last Change
2017-12-08
Receiving From

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

ASN
Organisation
AS600
US flagOARnet
AS3112
US flagOARnet
IPv4 Active Prefixes

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

Prefix129.22.0.0/20
Range From129.22.0.0
Range To129.22.15.255
Prefix129.22.16.0/20
Range From129.22.16.0
Range To129.22.31.255
Prefix129.22.32.0/20
Range From129.22.32.0
Range To129.22.47.255
Prefix129.22.48.0/20
Range From129.22.48.0
Range To129.22.63.255
Prefix129.22.64.0/20
Range From129.22.64.0
Range To129.22.79.255
Showing 5 of 19
IPv6 Active Prefixes
Prefix2606:ea00::/32
Range From2606:ea00::
Range To2606:ea00:ffff:ffff:ffff:ffff:ffff:ffff
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.