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 Lookup for:
AS721
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ASN
AS721
Organisation
DoD Network Information Center
AS Name
DNIC-ASBLK-00721-00726
IPv4 Addresses Announced
48,517,120
IPv4 Prefixes Announced
5,512
Bogon Prefixes Announced
9
IPv4 Space Rank
#5 out of 74,593
Registry
ARIN
Registered Country
US
Registration Date
1970-01-01
Registration Change
2009-05-15
Telstra Corporation Limited
SURF B.V.
TELUS Communications Inc.