AS1637

Name: AS1637 — Headquarters, USAISC
Creator: ipdex

Headquarters, USAISC Unknown registered in United States

122IPv4 prefixes

1IPv6 prefixes

#13,215AS Rank

326/327RIS visibility

#273Rank in United States

2004-05-12Allocated

Headquarters, USAISC (AS1637) — Unknown, registered in United States. announces 122 IPv4 prefixes + 1 IPv6 prefixes. Rank in United States: #273. Allocated: 2004-05-12.

IPv4 122IPv6 1

Announced prefixes · 123

v4 143.46.0.0/16 unknown
v4 143.46.10.0/24 unknown
v4 143.46.11.0/24 unknown
v4 143.46.110.0/24 unknown
v4 143.46.116.0/22 unknown
v4 143.46.12.0/24 unknown
v4 143.46.120.0/22 unknown
v4 143.46.128.0/23 unknown
v4 143.46.130.0/23 unknown
v4 143.46.134.0/23 unknown
v4 143.46.140.0/24 unknown
v4 143.46.141.0/24 unknown
v4 143.46.142.0/24 unknown
v4 143.46.143.0/24 unknown
v4 143.46.144.0/24 unknown
v4 143.46.145.0/24 unknown
v4 143.46.146.0/24 unknown
v4 143.46.147.0/24 unknown
v4 143.46.150.0/24 unknown
v4 143.46.151.0/24 unknown
v4 143.46.158.0/24 unknown
v4 143.46.161.0/24 unknown
v4 143.46.164.0/22 unknown
v4 143.46.168.0/24 unknown
v4 143.46.169.0/24 unknown
v4 143.46.17.0/24 unknown
v4 143.46.170.0/24 unknown
v4 143.46.18.0/24 unknown
v4 143.46.190.0/24 unknown
v4 143.46.193.0/24 unknown
v4 143.46.196.0/24 unknown
v4 143.46.20.0/24 unknown
v4 143.46.21.0/24 unknown
v4 143.46.210.0/24 unknown
v4 143.46.22.0/24 unknown
v4 143.46.229.0/24 unknown
v4 143.46.23.0/24 unknown
v4 143.46.24.0/24 unknown
v4 143.46.240.0/24 unknown
v4 143.46.25.0/24 unknown
v4 143.46.253.0/24 unknown
v4 143.46.26.0/24 unknown
v4 143.46.27.0/24 unknown
v4 143.46.32.0/24 unknown
v4 143.46.33.0/24 unknown
v4 143.46.34.0/24 unknown
v4 143.46.35.0/24 unknown
v4 143.46.36.0/24 unknown
v4 143.46.37.0/24 unknown
v4 143.46.39.0/24 unknown

Routing: 123 IPv4 · 1 IPv6 announced · RIS visibility 326/327 RIS peers · RIPEstat · 2026-06-17

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

AS topology · Customer cone 1

Providers · 1

AS27066 United States Department of Defense (DoD)

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