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 v1.1.0 — a transparent heuristic, not a definitive verdict. How it works →
About Princeton University
Princeton University is a private Ivy League research university in Princeton, New Jersey, United States. Founded in 1746 in Elizabeth as the College of New Jersey, Princeton is the fourth-oldest institution of higher education in the United States and one of the nine colonial colleges chartered before the American Revolution.
AS88 — global IP footprint
Cities where AS88 has measurable IPv4 allocation. Click any dot to open that city's page. Size and color scale with IP count.
Top CIDR ranges
| CIDR | IPs | PTR Density | Organization | Country | State | City |
|---|---|---|---|---|---|---|
| 128.112.0.0/16 | 65.5K |
16.8%
|
Princeton University | US | New Jersey | Princeton |
| 140.180.0.0/16 | 65.5K |
15.9%
|
Princeton University | US | New Jersey | Princeton |
| 66.180.176.0/20 | 4.1K |
5.2%
|
Princeton University | US | New Jersey | Princeton |
| 204.153.48.0/22 | 1.0K |
6.6%
|
Princeton University | US | New Jersey | Princeton |
| 205.172.164.0/22 | 1.0K |
0.0%
|
Princeton University | US | — | — |
| 192.12.53.0/24 | 256 |
0.0%
|
Princeton University | US | — | — |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS88 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.
| Prefix | Announcement samples | Last seen |
|---|---|---|
| 66.180.176.0/20 | 4,294 | 2026-07-23 15:09:12 |
| 140.180.0.0/16 | 4,202 | 2026-07-23 15:09:12 |
| 128.112.0.0/16 | 4,198 | 2026-07-23 15:09:12 |
| 204.153.50.0/24 | 4,151 | 2026-07-23 15:51:46 |
| 204.153.49.0/24 | 4,151 | 2026-07-23 15:51:46 |
| 204.153.51.0/24 | 4,149 | 2026-07-23 15:51:46 |
| 204.153.48.0/24 | 4,147 | 2026-07-23 15:51:46 |
| 205.172.164.0/22 | 4,084 | 2026-07-23 15:51:46 |
Frequently Asked Questions
What is AS88?
AS88 is an Autonomous System Number assigned to Princeton University. An ASN identifies a network that controls a specific set of IP addresses and determines how traffic is routed across the internet via BGP (Border Gateway Protocol).
How many IP addresses does AS88 announce?
AS88 announces 137.5K IPv4 addresses distributed across 6 routed CIDR prefixes. The network is registered in United States.
Who operates AS88?
AS88 is operated by Princeton University. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.
What country is AS88 registered in?
AS88 is registered in United States. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
