AS1540

Name: AS1540 — Headquarters, USAISC
Creator: ipdex

Headquarters, USAISC Unknown registered in United States

788IPv4 prefixes

26IPv6 prefixes

#13,176AS Rank

#40Rank in United States

2004-05-12Allocated

Headquarters, USAISC (AS1540) — Unknown, registered in United States. announces 788 IPv4 prefixes + 26 IPv6 prefixes. Rank in United States: #40. Allocated: 2004-05-12.

IPv4 788IPv6 26

Announced prefixes · 814

v4 155.21.174.0/23 unknown
v4 155.21.178.0/23 unknown
v4 155.21.186.0/24 unknown
v4 155.21.187.0/24 unknown
v4 155.21.188.0/23 unknown
v4 155.213.18.0/24 unknown
v4 155.213.19.0/24 unknown
v4 155.213.24.0/21 unknown
v4 155.213.240.0/21 unknown
v4 155.213.252.0/22 unknown
v4 155.214.0.0/17 unknown
v4 155.214.128.0/17 unknown
v4 155.215.0.0/16 unknown
v4 155.217.249.0/24 unknown
v4 155.219.0.0/16 unknown
v4 155.26.196.0/24 unknown
v4 155.29.116.0/24 unknown
v4 155.29.120.0/23 unknown
v4 155.29.122.0/24 unknown
v4 155.29.124.0/24 unknown
v4 155.29.125.0/24 unknown
v4 155.29.126.0/23 unknown
v4 155.29.132.0/24 unknown
v4 155.29.133.0/24 unknown
v4 155.29.134.0/24 unknown
v4 155.29.143.0/24 unknown
v4 155.29.145.0/24 unknown
v4 155.29.151.0/24 unknown
v4 155.29.162.0/24 unknown
v4 155.29.163.0/24 unknown
v4 155.29.164.0/24 unknown
v4 155.29.165.0/24 unknown
v4 155.29.241.0/24 unknown
v4 155.29.247.0/24 unknown
v4 155.29.40.0/23 unknown
v4 155.29.42.0/23 unknown
v4 155.29.44.0/24 unknown
v4 155.29.45.0/24 unknown
v4 155.29.46.0/24 unknown
v4 155.29.47.0/24 unknown
v4 155.29.56.0/21 unknown
v4 155.29.68.0/24 unknown
v4 155.29.69.0/24 unknown
v4 155.29.70.0/23 unknown
v4 155.29.72.0/23 unknown
v4 155.29.74.0/24 unknown
v4 155.29.78.0/24 unknown
v4 155.29.79.0/24 unknown
v4 155.29.80.0/23 unknown
v4 155.29.82.0/24 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

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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