AS3851
Nevada System of Higher Education
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
- Enterprise allocation +4
- Trust score 69 / 100
Experimental · trust-vectors model v1.1.0 — a transparent heuristic, not a definitive verdict. How it works →
Network profile
Source: PeeringDB →AS3851 — global IP footprint
Cities where AS3851 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 |
|---|---|---|---|---|---|---|
| 131.216.0.0/16 | 65.5K |
23.4%
|
Nevada System of Higher Education | US | Nevada | Las Vegas |
| 134.197.0.0/16 | 65.5K |
4.0%
|
Nevada System of Higher Education | US | Nevada | Reno |
| 207.197.0.0/17 | 32.8K |
3.6%
|
Nevada System of Higher Education | US | Nevada | Las Vegas |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS3851 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 |
|---|---|---|
| 207.197.0.0/19 | 7,949 | 2026-07-18 12:15:49 |
| 131.216.0.0/16 | 7,841 | 2026-07-18 12:28:26 |
| 134.197.0.0/16 | 7,820 | 2026-07-18 12:19:33 |
| 207.197.64.0/18 | 7,807 | 2026-07-18 12:29:28 |
| 207.197.32.0/19 | 7,805 | 2026-07-18 12:28:50 |
Frequently Asked Questions
What is AS3851?
AS3851 is an Autonomous System Number assigned to Nevada System of Higher Education. 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 AS3851 announce?
AS3851 announces 163.8K IPv4 addresses distributed across 3 routed CIDR prefixes. The network is registered in United States.
Who operates AS3851?
AS3851 is operated by Nevada System of Higher Education. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.
What country is AS3851 registered in?
AS3851 is registered in United States. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
