AS21556

Name: AS21556 — National Aeronautics and Space Administration
Creator: ipdex

National Aeronautics and Space Administration Unknown registered in United States

2IPv4 prefixes

2IPv6 prefixes

#20,971AS Rank

327/327RIS visibility

#6,069Rank in United States

2012-11-01Allocated

National Aeronautics and Space Administration (AS21556) — Unknown, registered in United States. announces 2 IPv4 prefixes + 2 IPv6 prefixes. Rank in United States: #6069. Allocated: 2012-11-01.

IPv4 2IPv6 2

Announced prefixes · 4

v4 192.12.28.0/24 unknown
v4 192.203.230.0/24 unknown
v6 2001:500:a8::/48 unknown
v6 2620:126:e000::/48 unknown

Routing: 2 IPv4 · 2 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 · 3

AS13335 Cloudflare, Inc.
AS42 WoodyNet, Inc.
AS297 National Aeronautics and Space Administration

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