AS1501

Name: AS1501 — Headquarters, USAISC
Creator: ipdex

Headquarters, USAISC Unknown registered in United States

121IPv4 prefixes

0IPv6 prefixes

#13,171AS Rank

#282Rank in United States

2004-05-12Allocated

Headquarters, USAISC (AS1501) — Unknown, registered in United States. announces 121 IPv4 prefixes + 0 IPv6 prefixes. Rank in United States: #282. Allocated: 2004-05-12.

IPv4 121IPv6 0

Announced prefixes · 121

v4 143.73.71.0/24 unknown
v4 143.73.72.0/24 unknown
v4 143.73.76.0/24 unknown
v4 143.73.77.0/24 unknown
v4 143.73.78.0/24 unknown
v4 143.73.79.0/24 unknown
v4 143.73.83.0/24 unknown
v4 143.73.84.0/24 unknown
v4 143.73.85.0/24 unknown
v4 143.73.86.0/24 unknown
v4 143.73.90.0/24 unknown
v4 143.73.92.0/24 unknown
v4 143.73.94.0/24 unknown
v4 143.73.95.0/24 unknown
v4 143.76.19.0/24 unknown
v4 143.76.48.0/24 unknown
v4 143.86.175.0/24 unknown
v4 143.86.208.0/24 unknown
v4 144.104.103.0/24 unknown
v4 144.105.172.0/24 unknown
v4 144.105.202.0/24 unknown
v4 144.107.186.0/24 unknown
v4 144.107.255.0/24 unknown
v4 146.16.223.0/24 unknown
v4 147.104.100.0/22 unknown
v4 147.104.103.0/24 unknown
v4 147.104.104.0/24 unknown
v4 147.104.118.0/24 unknown
v4 147.104.247.0/24 unknown
v4 147.104.51.0/24 unknown
v4 147.104.62.0/24 unknown
v4 147.104.63.0/24 unknown
v4 150.196.240.0/20 unknown
v4 150.196.246.0/24 unknown
v4 150.196.247.0/24 unknown
v4 155.20.212.0/24 unknown
v4 155.20.218.0/24 unknown
v4 155.20.219.0/24 unknown
v4 155.20.48.0/24 unknown
v4 155.26.111.0/24 unknown
v4 155.26.198.0/24 unknown
v4 155.26.200.0/24 unknown
v4 155.26.224.0/20 unknown
v4 155.26.224.0/24 unknown
v4 155.26.226.0/24 unknown
v4 155.26.228.0/24 unknown
v4 155.26.229.0/24 unknown
v4 155.26.235.0/24 unknown
v4 155.26.48.0/23 unknown
v4 155.26.48.0/24 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	123
2026-06-13	123
2026-06-14	124
2026-06-15	123
2026-06-16	121
2026-06-17	121

AS topology · Customer cone 1

Providers · 1

AS1555 United States Department of Defense (DoD)

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