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.
- Baseline (neutral) 65
- Government allocation +8
- Trust score 73 / 100
Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →
About Institute for Defense Analyses
The Institute for Defense Analyses (IDA) is an American non-profit corporation that administers three federally funded research and development centers (FFRDCs) – the Systems and Analyses Center (SAC), the Science and Technology Policy Institute (STPI), and the Center for Communications and Computing (C&C) – to assist the United States government in addressing national security issues, particularly those requiring scientific and technical expertise. It is headquartered in Alexandria, Virginia.
热门 CIDR 范围
| CIDR | IP 地址 | PTR Density | 组织 | 国家 | State | City |
|---|---|---|---|---|---|---|
| 129.246.0.0/16 | 65.5K |
0.1%
|
Institute for Defense Analyses | US | Virginia | Alexandria |
| 164.217.0.0/16 | 65.5K |
0.0%
|
Institute for Defense Analyses | US | Virginia | Alexandria |
| 198.133.241.0/24 | 256 |
0.0%
|
Institute for Defense Analyses | US | — | — |
BGP 公告前缀
实时 BGP 异常 →前缀 AS166 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 |
|---|---|---|
| 129.246.235.0/24 | 15,417 | 2026-07-29 00:57:22 |
| 129.246.243.0/24 | 15,416 | 2026-07-29 00:57:17 |
| 129.246.101.0/24 | 15,407 | 2026-07-29 00:57:23 |
| 164.217.228.0/24 | 15,404 | 2026-07-29 00:57:17 |
| 164.217.225.0/24 | 15,401 | 2026-07-29 00:57:20 |
| 129.246.253.0/24 | 15,397 | 2026-07-29 00:57:17 |
| 129.246.230.0/24 | 15,393 | 2026-07-29 00:57:27 |
| 129.246.225.0/24 | 15,386 | 2026-07-29 00:57:27 |
| 164.217.254.0/24 | 15,380 | 2026-07-29 00:57:27 |
| 129.246.229.0/24 | 15,373 | 2026-07-29 00:57:27 |
| 164.217.253.0/24 | 15,373 | 2026-07-29 00:57:27 |
| 129.246.228.0/24 | 15,364 | 2026-07-29 00:57:27 |
| 129.246.254.0/24 | 15,359 | 2026-07-29 00:57:27 |
| 164.217.128.0/17 | 13,065 | 2026-07-29 00:57:17 |
| 129.246.128.0/17 | 13,049 | 2026-07-29 00:57:18 |
| 164.217.0.0/17 | 13,036 | 2026-07-29 00:57:17 |
| 129.246.0.0/17 | 13,031 | 2026-07-29 00:57:27 |
| 198.133.241.0/24 | 10,487 | 2026-07-29 00:57:30 |
Frequently Asked Questions
什么是 AS166？
AS166 是分配给 Institute for Defense Analyses 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。
AS166 公告了多少个 IP 地址？
AS166 公告了 131.3K 个 IPv4 地址，分布在 3 个路由 CIDR 前缀中。 该网络在 United States 注册。
谁运营 AS166？
AS166 由 Institute for Defense Analyses 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。
AS166 在哪个国家注册？
AS166 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。
