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ASN Lookup Tool
AS637 DoD Network Information Center

An 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.

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ASN Lookup for:

AS637

Powered By:
ASN Extended Info API
BGP Active Prefixes API
ASN Details JSON View

ASN Details

ASN
AS637
Organisation
DoD Network Information Center
AS Name
DNIC-ASBLK-00616-00665
IPv4 Addresses Announced
902,656
IPv4 Prefixes Announced
364
IPv6 Prefixes Announced
0
IPv4 Bogon Prefixes
0
IPv6 Bogon Prefixes
0
IPv4 Space Rank
#405 out of 75,562
Registry
Arin
Registered Country
US
Registration Date
1990-04-19
Registration Change
2009-06-18

Receiving From

ASN
Organisation
AS367
DoD Network Information Center
AS27064
DoD Network Information Center
AS27066
DoD Network Information Center
AS1733
DoD Network Information Center

Active Prefixes IPv4

Prefix
Range From
Range To
Prefix 137.232.237.0/24
Range From 137.232.237.0
Range To 137.232.237.255
Prefix 137.233.195.0/24
Range From 137.233.195.0
Range To 137.233.195.255
Prefix 137.234.104.0/22
Range From 137.234.104.0
Range To 137.234.107.255
Prefix 137.234.108.0/23
Range From 137.234.108.0
Range To 137.234.109.255
Prefix 137.234.110.0/24
Range From 137.234.110.0
Range To 137.234.110.255
Prefix 137.234.111.0/24
Range From 137.234.111.0
Range To 137.234.111.255
Prefix 137.234.112.0/20
Range From 137.234.112.0
Range To 137.234.127.255
Prefix 137.234.128.0/22
Range From 137.234.128.0
Range To 137.234.131.255
Prefix 137.234.132.0/22
Range From 137.234.132.0
Range To 137.234.135.255
Prefix 137.234.136.0/23
Range From 137.234.136.0
Range To 137.234.137.255
Showing 10 of 364 Results View More >