AS3477

Name: AS3477 — National Oceanic and Atmospheric Administration
Creator: ipdex

National Oceanic and Atmospheric Administration Unknown registered in United States

82IPv4 prefixes

26IPv6 prefixes

100%RPKI-valid

#2,443AS Rank

327/327RIS visibility

#314Rank in United States

1994-03-08Allocated

National Oceanic and Atmospheric Administration (AS3477) — Unknown, registered in United States. announces 82 IPv4 prefixes + 26 IPv6 prefixes. Rank in United States: #314. Allocated: 1994-03-08.

IPv4 82IPv6 26

Announced prefixes · 108

v4 137.75.100.0/22 valid
v4 137.75.106.0/24 valid
v4 137.75.108.0/22 valid
v4 137.75.112.0/22 valid
v4 137.75.116.0/22 valid
v4 137.75.120.0/24 valid
v4 137.75.224.0/22 valid
v4 137.75.64.0/18 valid
v4 137.75.68.0/22 valid
v4 137.75.72.0/22 valid
v4 137.75.76.0/22 valid
v4 137.75.80.0/22 valid
v4 137.75.82.0/24 valid
v4 137.75.88.0/21 valid
v4 137.75.96.0/22 valid
v4 140.172.0.0/16 valid
v4 140.208.192.0/20 valid
v4 140.208.252.0/22 valid
v4 140.208.253.0/24 valid
v4 140.90.0.0/16 valid
v4 140.90.101.0/24 valid
v4 140.90.190.0/24 valid
v4 140.90.28.0/24 valid
v4 151.207.12.0/24 valid
v4 151.207.13.0/24 valid
v4 151.207.8.0/24 valid
v4 151.207.9.0/24 valid
v4 155.206.0.0/16 valid
v4 161.55.0.0/16 valid
v4 161.55.224.0/24 valid
v4 161.55.56.0/23 valid
v4 165.92.182.0/24 valid
v4 165.92.184.0/24 valid
v4 165.92.186.0/24 valid
v4 165.92.187.0/24 valid
v4 165.92.222.0/24 valid
v4 192.111.123.0/24 valid
v4 192.133.29.0/24 valid
v4 192.153.129.0/24 valid
v4 192.35.128.0/24 valid
v4 192.35.129.0/24 valid
v4 192.58.1.0/24 valid
v4 192.58.2.0/24 valid
v4 192.58.3.0/24 valid
v4 192.67.134.0/24 valid
v4 192.67.97.0/24 valid
v4 192.94.173.0/24 valid
v4 198.180.147.0/24 valid
v4 198.206.32.0/19 valid
v4 198.51.11.0/24 valid

RPKI: rpki.cloudflare.com · 2026-06-17

Routing: 82 IPv4 · 26 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	108
2026-06-13	108
2026-06-14	107
2026-06-15	108

AS topology · Customer cone 11

Providers · 2

AS11956 National Oceanic and Atmospheric Administration
AS26100 National Oceanic and Atmospheric Administration

Customers · 10

AS49 National Institute of Standards and Technology
AS2648 National Oceanic and Atmospheric Administration
AS3635 U.S. Department of Commerce, Bureau of Economic Analysis
AS5744 United States Patent and Trademark Office
AS6629 National Oceanic and Atmospheric Administration
AS12076 Microsoft Corporation

Embed this on your site

Free badges and live charts — they update as the index does. No key, link back to ipdex.

Badge

Markdown

[![AS3477 on ipdex](https://ipdex.io/badge/asn/3477.svg)](https://ipdex.io/asn/AS3477/)

HTML

<a href="https://ipdex.io/asn/AS3477/"><img src="https://ipdex.io/badge/asn/3477.svg" alt="AS3477 on ipdex"></a>

Live chart (iframe)

<iframe src="https://ipdex.io/embed/asn/3477" width="680" height="260" frameborder="0" scrolling="no" title="ipdex chart" style="border:0;max-width:100%"></iframe>

oEmbed-enabled: paste the page URL into platforms that support oEmbed and the chart embeds automatically.