ASN Lookup Tool
AS721 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.

ASN Details

ASN
AS721
Organisation
DoD Network Information Center
AS Name
DNIC-ASBLK-00721-00726
IPv4 Addresses Announced
48,575,488
IPv4 Prefixes Announced
5,486
Bogon Prefixes Announced
9
IPv4 Space Rank
#5 out of 74,539
Registry
ARIN
Registered Country
US flag US
Registration Date
1970-01-01
Registration Change
2009-05-15

Receiving From

ASN
Organisation
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Organisation
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Organisation
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ASN
Organisation
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ASN
Organisation
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ASN
Organisation
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ASN
Organisation
NL flag SURF B.V.
ASN
Organisation
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ASN
Organisation
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ASN
Organisation
US flag CenturyLink Communications LLC
ASN
Organisation
US flag CenturyLink Communications LLC
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Transit To

ASN
Organisation
ASN
Organisation
US flag DoD Network Information Center
ASN
Organisation
US flag DoD Network Information Center
ASN
Organisation
US flag DoD Network Information Center

Active Prefixes

Showing 10 of 5,486 Results View More >