AS1540

Name: AS1540 — Headquarters, USAISC
Creator: ipdex

Headquarters, USAISC Unknown registered in United States

780IPv4 prefixes

26IPv6 prefixes

#13,176AS Rank

#42Rank in United States

2004-05-12Allocated

Headquarters, USAISC (AS1540) — Unknown, registered in United States. announces 780 IPv4 prefixes + 26 IPv6 prefixes. Rank in United States: #42. Allocated: 2004-05-12.

IPv4 780IPv6 26

Announced prefixes · 806

v4 6.71.196.0/23 unknown
v4 6.71.198.0/23 unknown
v4 6.71.200.0/23 unknown
v4 6.71.202.0/23 unknown
v4 6.71.204.0/23 unknown
v4 6.71.206.0/23 unknown
v4 6.71.208.0/23 unknown
v4 6.71.210.0/23 unknown
v4 6.71.212.0/23 unknown
v4 6.71.214.0/23 unknown
v4 6.71.216.0/23 unknown
v4 6.71.218.0/23 unknown
v4 6.71.220.0/23 unknown
v4 6.71.222.0/23 unknown
v4 6.71.224.0/23 unknown
v4 6.71.226.0/23 unknown
v4 6.71.228.0/23 unknown
v4 6.71.230.0/23 unknown
v4 6.72.0.0/20 unknown
v4 6.72.192.0/23 unknown
v4 6.72.194.0/23 unknown
v4 6.72.20.0/22 unknown
v4 6.72.200.0/23 unknown
v4 6.72.202.0/23 unknown
v4 6.72.204.0/23 unknown
v4 6.72.206.0/23 unknown
v4 6.72.208.0/23 unknown
v4 6.72.210.0/23 unknown
v4 6.72.212.0/23 unknown
v4 6.72.214.0/23 unknown
v4 6.72.216.0/23 unknown
v4 6.72.218.0/23 unknown
v4 6.72.224.0/21 unknown
v4 6.72.232.0/22 unknown
v4 6.72.240.0/22 unknown
v4 6.72.244.0/22 unknown
v4 6.72.248.0/22 unknown
v4 6.72.254.0/23 unknown
v4 6.73.193.0/24 unknown
v4 6.73.194.0/24 unknown
v4 6.73.195.0/24 unknown
v4 6.73.196.0/24 unknown
v4 6.73.209.0/24 unknown
v4 6.73.220.0/23 unknown
v4 6.73.222.0/24 unknown
v4 6.73.224.0/23 unknown
v4 6.73.226.0/23 unknown
v4 6.73.228.0/23 unknown
v4 6.73.230.0/23 unknown
v4 6.73.232.0/23 unknown

— Routing status unavailable

Prefix history

Announced prefixes Source: ipdex daily snapshot · sparse rows, value holds until the next change (steps)

Data table

Day	Announced prefixes
2026-06-12	773
2026-06-13	773
2026-06-14	747
2026-06-16	751
2026-06-17	763
2026-06-19	814
2026-06-20	806

AS topology · Customer cone 1

Providers · 1

AS27064 United States Department of Defense (DoD)

Peers · 2

AS306 United States Department of Defense (DoD)
AS367 United States Department of Defense (DoD)

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