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自律システム

AS3477

National Oceanic and Atmospheric Administration

アナウンスされたIP数
321,536
CIDRプレフィックス
54
ASN
AS3477

Reputation · trust score

A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.

73/100
Moderate
How this score is built

Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →

AS3477 — グローバルIPフットプリント

ASがある都市3477 測定可能なIPv4割り当てがあります。任意の点をクリックすると、その都市のページが開きます。サイズと色はIP数に応じて変化します。

3D地球儀で表示 →

トップCIDR範囲

CIDRIP数PTR Density組織StateCity
140.90.0.0/16 65.5K
11.5%
National Oceanic and Atmospheric Administration US Maryland Crofton
140.172.0.0/16 65.5K
7.3%
National Oceanic and Atmospheric Administration US Colorado Boulder
155.206.0.0/16 65.5K
0.4%
National Oceanic and Atmospheric Administration US Florida Wimauma
161.55.0.0/16 65.5K
2.4%
National Oceanic and Atmospheric Administration US Washington Seattle
137.75.64.0/19 8.2K
2.0%
National Oceanic and Atmospheric Administration US Maryland Bowie
198.206.32.0/19 8.2K
8.3%
National Oceanic and Atmospheric Administration US
205.156.0.0/19 8.2K
4.8%
National Oceanic and Atmospheric Administration US Maryland Silver Spring
137.75.96.0/20 4.1K
0.1%
National Oceanic and Atmospheric Administration US
140.208.192.0/20 4.1K
0.0%
National Oceanic and Atmospheric Administration US
204.228.176.0/20 4.1K
37.9%
National Oceanic and Atmospheric Administration US
205.156.32.0/20 4.1K
12.5%
National Oceanic and Atmospheric Administration US Maryland Silver Spring
137.75.112.0/21 2.0K
0.2%
National Oceanic and Atmospheric Administration US
204.228.176.0/21 2.0K
44.9%
National Oceanic and Atmospheric Administration US
205.156.48.0/21 2.0K
12.7%
National Oceanic and Atmospheric Administration US
137.75.224.0/22 1.0K
0.0%
National Oceanic and Atmospheric Administration US
140.208.252.0/22 1.0K
0.1%
National Oceanic and Atmospheric Administration US North Carolina Weaverville
204.193.244.0/22 1.0K
0.0%
National Oceanic and Atmospheric Administration US Virginia Springfield
204.228.184.0/22 1.0K
38.0%
National Oceanic and Atmospheric Administration US
137.75.120.0/23 512
0.0%
National Oceanic and Atmospheric Administration US
151.207.8.0/23 512
0.0%
National Oceanic and Atmospheric Administration US
151.207.12.0/23 512
0.0%
National Oceanic and Atmospheric Administration US
165.92.186.0/23 512
0.0%
National Oceanic and Atmospheric Administration US
192.35.128.0/23 512
0.0%
National Oceanic and Atmospheric Administration US
192.58.2.0/23 512
0.0%
National Oceanic and Atmospheric Administration US
199.104.104.0/23 512
21.5%
National Oceanic and Atmospheric Administration US
199.242.232.0/23 512
1.6%
National Oceanic and Atmospheric Administration US
204.193.242.0/23 512
0.0%
National Oceanic and Atmospheric Administration US
204.228.190.0/23 512
35.0%
National Oceanic and Atmospheric Administration US
205.156.62.0/23 512
0.0%
National Oceanic and Atmospheric Administration US
205.167.24.0/23 512
10.0%
National Oceanic and Atmospheric Administration US
137.75.123.0/24 256
0.8%
National Oceanic and Atmospheric Administration US
165.92.182.0/24 256
0.0%
National Oceanic and Atmospheric Administration US
165.92.184.0/24 256
0.0%
National Oceanic and Atmospheric Administration US
165.92.222.0/24 256
0.0%
National Oceanic and Atmospheric Administration US
170.110.254.0/24 256
0.0%
National Oceanic and Atmospheric Administration US
192.58.1.0/24 256
0.0%
National Oceanic and Atmospheric Administration US
192.67.97.0/24 256
5.9%
National Oceanic and Atmospheric Administration US
192.67.134.0/24 256
1.6%
National Oceanic and Atmospheric Administration US
192.94.173.0/24 256
2.0%
National Oceanic and Atmospheric Administration US Michigan Ann Arbor
192.111.123.0/24 256
14.1%
National Oceanic and Atmospheric Administration US
192.133.29.0/24 256
0.0%
National Oceanic and Atmospheric Administration US
192.153.129.0/24 256
0.4%
National Oceanic and Atmospheric Administration US
198.51.11.0/24 256
0.0%
National Oceanic and Atmospheric Administration US
198.180.147.0/24 256
55.5%
National Oceanic and Atmospheric Administration US
198.200.151.0/24 256
18.8%
National Oceanic and Atmospheric Administration US
199.242.231.0/24 256
2.3%
National Oceanic and Atmospheric Administration US
204.145.202.0/24 256
7.0%
National Oceanic and Atmospheric Administration US
204.193.241.0/24 256
0.0%
National Oceanic and Atmospheric Administration US
204.193.242.0/24 256
0.0%
National Oceanic and Atmospheric Administration US
204.228.175.0/24 256
12.9%
National Oceanic and Atmospheric Administration US
204.228.188.0/24 256
18.8%
National Oceanic and Atmospheric Administration US
205.156.61.0/24 256
0.0%
National Oceanic and Atmospheric Administration US
205.159.118.0/24 256
0.0%
National Oceanic and Atmospheric Administration US
205.166.33.0/24 256
14.5%
National Oceanic and Atmospheric Administration US
206.197.238.0/24 256
0.4%
National Oceanic and Atmospheric Administration US Maryland Frederick

BGPアナウンス済みプレフィックス

ライブBGP異常 →

プレフィックス AS3477 BGPで実際に発信され、当社のRIPE RISコレクター全体で観測されています。このライブルーティングビューは、上記のレジストリ割り当てとは異なる場合があります。

Prefixアナウンスサンプル最終確認
204.228.182.0/24 49,998 2026-07-30 19:26:07
204.228.188.0/24 47,807 2026-07-30 19:26:07
204.228.190.0/24 44,806 2026-07-30 19:26:07
204.228.186.0/24 44,602 2026-07-30 19:26:07
204.228.189.0/24 43,970 2026-07-30 19:26:07
204.228.178.0/24 43,593 2026-07-30 19:26:07
204.145.202.0/24 41,662 2026-07-30 19:26:07
204.228.176.0/24 41,509 2026-07-30 19:26:07
199.104.104.0/24 41,392 2026-07-30 19:26:07
204.228.187.0/24 41,267 2026-07-30 19:26:07
204.228.175.0/24 41,196 2026-07-30 19:26:07
192.133.29.0/24 41,128 2026-07-30 19:26:07
204.228.185.0/24 41,057 2026-07-30 19:26:07
204.228.184.0/24 40,081 2026-07-30 19:26:07
204.228.181.0/24 39,994 2026-07-30 19:26:07
204.228.180.0/24 39,944 2026-07-30 19:26:07
204.228.177.0/24 39,848 2026-07-30 19:26:07
204.228.183.0/24 39,821 2026-07-30 19:26:07
204.228.191.0/24 39,795 2026-07-30 19:26:07
204.228.179.0/24 39,777 2026-07-30 19:26:07
204.193.242.0/24 33,286 2026-07-30 19:26:07
140.172.0.0/16 29,713 2026-07-30 19:27:03
137.75.72.0/22 29,530 2026-07-30 19:27:03
137.75.64.0/18 29,411 2026-07-30 19:27:03
192.67.97.0/24 28,666 2026-07-30 19:26:07
192.35.129.0/24 28,614 2026-07-30 19:26:07
204.193.243.0/24 22,606 2026-07-30 19:17:07
192.94.173.0/24 22,321 2026-07-30 19:16:39
198.51.11.0/24 15,519 2026-07-30 19:21:17
199.242.231.0/24 11,751 2026-07-30 19:17:07
199.242.232.0/23 11,743 2026-07-30 19:17:07
204.193.245.0/24 11,209 2026-07-30 19:17:07
192.111.123.0/24 9,664 2026-07-30 19:16:38
137.75.82.0/24 9,036 2026-07-30 19:29:46
161.55.56.0/23 8,116 2026-07-30 19:29:46
192.67.134.0/24 7,578 2026-07-30 19:16:39
192.153.129.0/24 7,567 2026-07-30 19:16:39
204.193.241.0/24 7,001 2026-07-30 19:25:18
137.75.100.0/22 6,371 2026-07-30 19:16:39
161.55.224.0/24 6,052 2026-07-30 19:16:38
140.90.101.0/24 5,299 2026-07-30 19:16:38
140.90.190.0/24 5,298 2026-07-30 19:16:38
140.90.0.0/16 5,286 2026-07-30 19:16:38
140.90.28.0/24 5,264 2026-07-30 19:16:38
137.75.120.0/24 4,852 2026-07-30 19:16:36
137.75.112.0/22 4,805 2026-07-30 19:16:36
205.167.24.0/24 4,784 2026-07-30 19:17:07
205.159.118.0/24 4,738 2026-07-30 19:17:07
137.75.224.0/22 4,721 2026-07-30 19:16:38
206.197.238.0/24 4,706 2026-07-30 19:17:07

上位を表示 50 of 86 サンプル量によるアナウンス済みプレフィックス。

Frequently Asked Questions

AS3477とは何ですか?

AS3477はNational Oceanic and Atmospheric Administrationに割り当てられた自律システム番号です。ASNは、特定のIPアドレスセットを制御し、BGP(Border Gateway Protocol)を介してインターネット上でトラフィックがどのようにルーティングされるかを決定するネットワークを識別します。

AS3477はいくつのIPアドレスをアナウンスしていますか?

AS3477は、54個のルーティングされたCIDRプレフィックスに分散された321.5K個のIPv4アドレスをアナウンスしています。 このネットワークはUnited Statesに登録されています。

AS3477は誰が運営していますか?

AS3477はNational Oceanic and Atmospheric Administrationによって運営されています。 この組織はUnited Statesに拠点を置いています。 組織ページで、すべてのIP範囲と関連するASNを表示できます。

AS3477はどの国に登録されていますか?

AS3477はUnited Statesに登録されています。これはネットワークオペレーターの本社所在地を示しますが、アナウンスするIPアドレスは世界中のユーザーにサービスを提供する場合があります。

最終更新日: 2026-07-30 19:40:30 UTC
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