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自治系统

AS3477

National Oceanic and Atmospheric Administration

已宣布的 IP 地址
321,536
CIDR 前缀
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 — 全球 IP 足迹

AS 所在城市3477 拥有可衡量的 IPv4 分配。点击任意圆点可打开该城市的页面。大小和颜色随 IP 数量变化。

在 3D 地球上查看 →

热门 CIDR 范围

CIDRIP 地址PTR Density组织国家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 公告前缀

实时 BGP 异常 →

前缀 AS3477 实际源自 BGP,通过我们的 RIPE RIS 收集器观测。此实时路由视图可能与上述注册分配有所不同。

Prefix公告样本最后观测
204.228.182.0/24 50,013 2026-07-30 21:13:05
204.228.188.0/24 47,822 2026-07-30 21:13:05
204.228.190.0/24 44,821 2026-07-30 21:13:05
204.228.186.0/24 44,617 2026-07-30 21:13:05
204.228.189.0/24 43,985 2026-07-30 21:13:05
204.228.178.0/24 43,608 2026-07-30 21:13:05
204.145.202.0/24 41,677 2026-07-30 21:13:05
204.228.176.0/24 41,524 2026-07-30 21:13:05
199.104.104.0/24 41,408 2026-07-30 21:21:18
204.228.187.0/24 41,282 2026-07-30 21:13:05
204.228.175.0/24 41,211 2026-07-30 21:13:05
192.133.29.0/24 41,146 2026-07-30 21:17:21
204.228.185.0/24 41,072 2026-07-30 21:13:05
204.228.184.0/24 40,096 2026-07-30 21:13:05
204.228.181.0/24 40,009 2026-07-30 21:13:05
204.228.180.0/24 39,959 2026-07-30 21:13:05
204.228.177.0/24 39,863 2026-07-30 21:13:05
204.228.183.0/24 39,836 2026-07-30 21:13:05
204.228.191.0/24 39,810 2026-07-30 21:13:05
204.228.179.0/24 39,792 2026-07-30 21:13:05
204.193.242.0/24 33,301 2026-07-30 21:13:05
140.172.0.0/16 29,735 2026-07-30 21:13:36
137.75.72.0/22 29,552 2026-07-30 21:13:36
137.75.64.0/18 29,433 2026-07-30 21:13:36
192.67.97.0/24 28,686 2026-07-30 21:17:10
192.35.129.0/24 28,632 2026-07-30 21:17:04
204.193.243.0/24 22,612 2026-07-30 21:18:55
192.94.173.0/24 22,328 2026-07-30 21:18:55
198.51.11.0/24 15,525 2026-07-30 21:20:42
199.242.231.0/24 11,758 2026-07-30 21:21:32
199.242.232.0/23 11,750 2026-07-30 21:21:32
204.193.245.0/24 11,215 2026-07-30 21:18:55
192.111.123.0/24 9,671 2026-07-30 21:18:55
137.75.82.0/24 9,045 2026-07-30 21:18:55
161.55.56.0/23 8,128 2026-07-30 21:19:04
192.67.134.0/24 7,585 2026-07-30 21:18:55
192.153.129.0/24 7,574 2026-07-30 21:18:55
204.193.241.0/24 7,009 2026-07-30 21:18:55
137.75.100.0/22 6,378 2026-07-30 21:18:55
161.55.224.0/24 6,059 2026-07-30 21:18:55
140.90.101.0/24 5,306 2026-07-30 21:18:56
140.90.190.0/24 5,305 2026-07-30 21:18:55
140.90.0.0/16 5,293 2026-07-30 21:18:55
140.90.28.0/24 5,271 2026-07-30 21:18:55
137.75.120.0/24 4,857 2026-07-30 20:58:19
137.75.112.0/22 4,810 2026-07-30 20:58:19
205.167.24.0/24 4,790 2026-07-30 21:18:55
205.159.118.0/24 4,744 2026-07-30 21:18:55
137.75.224.0/22 4,728 2026-07-30 21:18:55
206.197.238.0/24 4,712 2026-07-30 21:18:55

显示前 50 of 86 按样本量公告的前缀。

Frequently Asked Questions

什么是 AS3477?

AS3477 是分配给 National Oceanic and Atmospheric Administration 的自治系统编号 (Autonomous System Number)。ASN 标识一个控制特定 IP 地址集的网络,并通过 BGP(边界网关协议)确定流量如何在互联网上传输。

AS3477 公告了多少个 IP 地址?

AS3477 公告了 321.5K 个 IPv4 地址,分布在 54 个路由 CIDR 前缀中。 该网络在 United States 注册。

谁运营 AS3477?

AS3477 由 National Oceanic and Atmospheric Administration 运营。 该组织总部位于 United States。 您可以在组织页面查看所有 IP 范围和相关 ASNs。

AS3477 在哪个国家注册?

AS3477 在 United States 注册。这表明网络运营商的总部所在地,尽管其公告的 IP 地址可能服务全球用户。

最后更新:2026-07-31 01:55:31 UTC
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