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ASN Lookup Tool
AS121 DNIC-AS-00121

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ASN Extended Info API & BGP Active Prefixes API
ASN Details
ASN
AS121
Organisation
United States Department of Defense (DoD)
Name
DNIC-AS-00121
Total IPv4 Addresses
9,728
Total IPv4 Prefixes
6
Total IPv6 Prefixes
0
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#9,635 out of 79,099
Registry
Arin
Registered Country
US flagUS
Registered Country Name
United States of America (the)
Registered Date
1987-08-13
Registration Last Change
2025-09-12
Receiving From
ASN
Organisation
AS668
US flagUnited States Department of Defense (DoD)
IPv4 Active Prefixes
PrefixRange FromRange To
214.54.192.0/20214.54.192.0214.54.207.255
214.54.208.0/20214.54.208.0214.54.223.255
214.54.224.0/23214.54.224.0214.54.225.255
214.54.226.0/23214.54.226.0214.54.227.255
214.54.230.0/24214.54.230.0214.54.230.255
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