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
- Trust score 65 / 100
Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →
About National Science Foundation
The United States National Science Foundation (NSF) is an independent agency of the United States federal government that supports fundamental research and education in all the non-medical fields of science and engineering. Its medical counterpart is the National Institutes of Health.
Countries served by U.S. National Science Foundation
Every country where this organization has IPv4 allocations, ranked by IPs held.
ASNs owned by U.S. National Science Foundation
Largest CIDR ranges
| CIDR | IPs | PTR Density | ASN | Country | State | City |
|---|---|---|---|---|---|---|
| 128.150.0.0/16 | 65.5K |
0.2%
|
AS102 | US | Virginia | Alexandria |
| 192.12.209.0/24 | 256 |
0.4%
|
AS102 | US | District of Columbia | Washington |
| 198.181.231.0/24 | 256 |
0.0%
|
AS102 | US | — | — |
Frequently Asked Questions
How many IP addresses does U.S. National Science Foundation own?
U.S. National Science Foundation controls 66.0K IPv4 addresses distributed across 3 CIDR ranges. The organization is registered in United States.
What ASNs does U.S. National Science Foundation operate?
U.S. National Science Foundation operates 1 Autonomous System. Each ASN represents an independently routed network that U.S. National Science Foundation manages for internet traffic delivery.
What type of organization is U.S. National Science Foundation?
U.S. National Science Foundation is categorized as unknown. This classification is based on the organization's primary use of its IP address allocations.
