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ASN Lookup Tool
AS138 DNIC-AS-00138

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ASN Extended Info API & BGP Active Prefixes API
ASN Details
ASN
AS138
Organisation
DoD Network Information Center
Name
DNIC-AS-00138
Total IPv4 Addresses
236,288
Total IPv4 Prefixes
116
Total IPv6 Prefixes
0
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#961 out of 77,686
Registry
Arin
Registered Country
US flag US
Registered Country Name
United States of America (the)
Registered Date
1987-11-11
Registration Last Change
2009-05-26
Receiving From

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

ASN
Organisation
AS27064
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).

Prefix131.66.0.0/16
Range From131.66.0.0
Range To131.66.255.255
Prefix131.67.0.0/16
Range From131.67.0.0
Range To131.67.255.255
Prefix131.68.0.0/23
Range From131.68.0.0
Range To131.68.1.255
Prefix131.68.2.0/24
Range From131.68.2.0
Range To131.68.2.255
Prefix131.68.3.0/24
Range From131.68.3.0
Range To131.68.3.255
Showing 5 of 116
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.