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 6.73.234.0/23 unknown
v4 6.73.236.0/23 unknown
v4 6.73.238.0/23 unknown
v4 6.73.240.0/23 unknown
v4 6.73.242.0/23 unknown
v4 6.73.244.0/23 unknown
v4 6.73.246.0/23 unknown
v4 6.73.248.0/23 unknown
v4 6.73.250.0/23 unknown
v4 6.73.252.0/24 unknown
v4 6.73.253.0/24 unknown
v4 6.75.91.0/24 unknown
v4 6.77.0.0/23 unknown
v4 6.77.2.0/23 unknown
v4 6.77.24.0/23 unknown
v4 6.77.26.0/23 unknown
v4 6.77.28.0/23 unknown
v4 6.77.34.0/23 unknown
v4 6.77.36.0/23 unknown
v4 6.77.4.0/23 unknown
v4 6.77.40.0/23 unknown
v4 6.77.44.0/23 unknown
v4 6.77.46.0/23 unknown
v4 6.77.48.0/23 unknown
v4 6.77.50.0/23 unknown
v4 6.77.54.0/23 unknown
v4 6.77.56.0/23 unknown
v4 6.77.6.0/23 unknown
v4 6.77.8.0/23 unknown
v4 6.79.32.0/21 unknown
v6 2608:103:2740::/48 unknown
v6 2608:103:4f0::/48 unknown
v6 2608:104:2a20::/48 unknown
v6 2608:104:500::/48 unknown
v6 2608:109:15b0::/48 unknown
v6 2608:122:3ff0::/48 unknown
v6 2608:123:4220::/48 unknown
v6 2608:124:b70::/48 unknown
v6 2608:125:4ee0::/48 unknown
v6 2608:127:17f0::/48 unknown
v6 2608:127:5ba0::/48 unknown
v6 2608:128:5bc0::/48 unknown
v6 2608:129:2a10::/48 unknown
v6 2608:129:5bd0::/48 unknown
v6 2608:12a:7464::/48 unknown
v6 2608:140:2080::/48 unknown
v6 2608:142:d90::/48 unknown
v6 2608:144:2f30::/48 unknown
v6 2608:148:1b50::/48 unknown
v6 2608:149:1b80::/48 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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