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ASN Lookup Tool
AS637 DNIC-ASBLK-00616-00665

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ASN Extended Info API & BGP Active Prefixes API
ASN Details
ASN
AS637
Organisation
United States Department of Defense (DoD)
Name
DNIC-ASBLK-00616-00665
Total IPv4 Addresses
894,720
Total IPv4 Prefixes
593
Total IPv6 Prefixes
0
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#404 out of 79,018
Registry
Arin
Registered Country
US flagUS
Registered Country Name
United States of America (the)
Registered Date
1990-04-19
Registration Last Change
2025-09-12
Receiving From
ASN
Organisation
AS27064
US flagUnited States Department of Defense (DoD)
AS27066
US flagUnited States Department of Defense (DoD)
AS27065
US flagUnited States Department of Defense (DoD)
AS1733
US flagUnited States Department of Defense (DoD)
IPv4 Active Prefixes
PrefixRange FromRange To
137.234.0.0/22137.234.0.0137.234.3.255
137.234.64.0/22137.234.64.0137.234.67.255
137.234.80.0/22137.234.80.0137.234.83.255
137.234.84.0/24137.234.84.0137.234.84.255
137.234.86.0/24137.234.86.0137.234.86.255
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