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ASN Lookup Tool
AS306 DNIC-ASBLK-00306-00371

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ASN Extended Info API & BGP Active Prefixes API
ASN Details
ASN
AS306
Organisation
United States Department of Defense (DoD)
Name
DNIC-ASBLK-00306-00371
Total IPv4 Addresses
4,558,336
Total IPv4 Prefixes
981
Total IPv6 Prefixes
56
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#111 out of 79,369
Registry
Arin
Registered Country
US flagUS
Registered Country Name
United States of America (the)
Registered Date
Registration Last Change
2025-09-12
Receiving From
ASN
Organisation
AS367
US flagUnited States Department of Defense (DoD)
AS306
US flagUnited States Department of Defense (DoD)
AS27064
US flagUnited States Department of Defense (DoD)
AS1540
US flagHeadquarters, USAISC
AS27066
US flagUnited States Department of Defense (DoD)
Transit To
ASN
Organisation
AS575
US flagHeadquarters, USAISC
AS306
US flagUnited States Department of Defense (DoD)
AS64512
WORLD flagPrivate Use AS
AS65500
WORLD flagPrivate Use AS
AS64530
WORLD flagPrivate Use AS
Showing 5 of 67
IPv4 Active Prefixes
PrefixRange FromRange To
55.10.0.0/1655.10.0.055.10.255.255
55.15.0.0/1755.15.0.055.15.127.255
55.15.128.0/1855.15.128.055.15.191.255
55.15.192.0/2155.15.192.055.15.199.255
55.15.200.0/2255.15.200.055.15.203.255
Showing 5 of 981
IPv6 Active Prefixes
PrefixRange FromRange To
2608:10a:1100::/402608:10a:1100::2608:10a:11ff:ffff:ffff:ffff:ffff:ffff
2608:10a:2100::/402608:10a:2100::2608:10a:21ff:ffff:ffff:ffff:ffff:ffff
2608:10a:7311::/482608:10a:7311::2608:10a:7311:ffff:ffff:ffff:ffff:ffff
2608:10a:7322::/482608:10a:7322::2608:10a:7322:ffff:ffff:ffff:ffff:ffff
2608:10a:7336::/482608:10a:7336::2608:10a:7336:ffff:ffff:ffff:ffff:ffff
Showing 5 of 56