AS21633

Name: AS21633 — U.S. Department of the Interior
Creator: ipdex

U.S. Department of the Interior Unknown registered in United States

4IPv4 prefixes

0IPv6 prefixes

#21,014AS Rank

327/327RIS visibility

#6,069Rank in United States

2001-06-01Allocated

U.S. Department of the Interior (AS21633) — Unknown, registered in United States. announces 4 IPv4 prefixes + 0 IPv6 prefixes. Rank in United States: #6069. Allocated: 2001-06-01.

IPv4 4IPv6 0

Announced prefixes · 4

v4 137.227.192.0/21 unknown
v4 137.227.96.0/21 unknown
v4 205.173.0.0/24 unknown
v4 205.173.4.0/24 unknown

Routing: 4 IPv4 · 0 IPv6 announced · RIS visibility 327/327 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	4
2026-06-13	4

AS topology · Customer cone 1

Providers · 2

AS3549 Level 3 Parent, LLC
AS22284 U.S. Department of the Interior

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