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ASN Lookup Tool
AS647 DNIC-ASBLK-00616-00665

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ASN Extended Info API & BGP Active Prefixes API
ASN Details
ASN
AS647
Organisation
DoD Network Information Center
Name
DNIC-ASBLK-00616-00665
Total IPv4 Addresses
402,688
Total IPv4 Prefixes
472
Total IPv6 Prefixes
0
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#664 out of 78,077
Registry
Arin
Registered Country
US flag US
Registered Country Name
United States of America (the)
Registered Date
1990-04-19
Registration Last Change
2009-06-18
Receiving From

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

ASN
Organisation
AS27066
US flagDoD Network Information Center
IPv4 Active Prefixes

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

Prefix138.183.0.0/17
Range From138.183.0.0
Range To138.183.127.255
Prefix164.231.102.0/24
Range From164.231.102.0
Range To164.231.102.255
Prefix164.231.111.0/24
Range From164.231.111.0
Range To164.231.111.255
Prefix205.56.0.0/19
Range From205.56.0.0
Range To205.56.31.255
Prefix205.56.92.0/22
Range From205.56.92.0
Range To205.56.95.255
Showing 5 of 472
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.