AS3999
The Pennsylvania State University
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
- Academic allocation +6
- Trust score 71 / 100
Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →
About Pennsylvania State University
The Pennsylvania State University is a public state-related land-grant research university with campuses and facilities throughout Pennsylvania, United States. Founded in 1855 as the Farmers' High School of Pennsylvania, Penn State was named the state's first land-grant university eight years later.
Network profile
Source: PeeringDB →AS3999 — 全球 IP 足迹
AS 所在城市3999 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。
热门 CIDR 范围
| CIDR | IP 地址 | PTR Density | 组织 | 国家 | State | City |
|---|---|---|---|---|---|---|
| 104.38.0.0/15 | 131.1K |
5.6%
|
The Pennsylvania State University | US | Pennsylvania | Philadelphia |
| 128.118.0.0/16 | 65.5K |
24.5%
|
The Pennsylvania State University | US | Pennsylvania | Port Matilda |
| 130.203.0.0/16 | 65.5K |
2.8%
|
The Pennsylvania State University | US | Pennsylvania | State College |
| 146.186.0.0/16 | 65.5K |
18.4%
|
The Pennsylvania State University | US | Pennsylvania | Monaca |
| 150.231.0.0/16 | 65.5K |
0.1%
|
The Pennsylvania State University | US | Pennsylvania | Hummelstown |
| 66.71.0.0/17 | 32.8K |
7.3%
|
The Pennsylvania State University | US | Pennsylvania | Reading |
| 75.102.64.0/18 | 16.4K |
0.2%
|
The Pennsylvania State University | US | Pennsylvania | Collegeville |
| 192.5.158.0/23 | 512 |
29.1%
|
The Pennsylvania State University | US | — | — |
| 192.5.160.0/23 | 512 |
0.0%
|
The Pennsylvania State University | US | — | — |
| 192.5.157.0/24 | 256 |
0.0%
|
The Pennsylvania State University | US | Pennsylvania | State College |
| 192.112.253.0/24 | 256 |
0.0%
|
The Pennsylvania State University | US | Pennsylvania | State College |
BGP 公告前缀
实时 BGP 异常 →前缀 AS3999 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 |
|---|---|---|
| 192.5.157.0/24 | 16,854 | 2026-07-30 21:18:56 |
| 66.71.0.0/17 | 16,450 | 2026-07-30 21:18:56 |
| 75.102.64.0/18 | 16,428 | 2026-07-30 21:18:56 |
| 192.112.253.0/24 | 16,361 | 2026-07-30 21:18:56 |
| 192.5.160.0/24 | 16,350 | 2026-07-30 21:18:56 |
| 128.118.0.0/16 | 16,345 | 2026-07-30 21:18:56 |
| 146.186.0.0/16 | 16,338 | 2026-07-30 21:18:56 |
| 130.203.0.0/16 | 16,333 | 2026-07-30 21:18:56 |
| 192.5.161.0/24 | 16,331 | 2026-07-30 21:18:56 |
| 192.5.158.0/24 | 16,323 | 2026-07-30 21:18:56 |
| 192.5.159.0/24 | 16,285 | 2026-07-30 21:18:56 |
| 104.38.0.0/15 | 16,225 | 2026-07-30 21:18:56 |
| 150.231.0.0/16 | 16,163 | 2026-07-30 21:18:56 |
Frequently Asked Questions
什么是 AS3999？
AS3999 是分配给 The Pennsylvania State University 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。
AS3999 公告了多少个 IP 地址？
AS3999 公告了 443.9K 个 IPv4 地址，分布在 11 个路由 CIDR 前缀中。 该网络在 United States 注册。
谁运营 AS3999？
AS3999 由 The Pennsylvania State University 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。
AS3999 在哪个国家注册？
AS3999 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。
