AS3671
SLAC National Accelerator Laboratory
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 →
Top CIDR ranges
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS3671 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 |
|---|---|---|
| 198.51.111.0/24 | 4,427 | 2026-07-18 19:45:40 |
| 134.79.0.0/16 | 4,346 | 2026-07-18 19:45:40 |
Frequently Asked Questions
What is AS3671?
AS3671 is an Autonomous System Number assigned to SLAC National Accelerator Laboratory. 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 AS3671 announce?
AS3671 announces 65.8K IPv4 addresses distributed across 18 routed CIDR prefixes. The network is registered in United States.
Who operates AS3671?
AS3671 is operated by SLAC National Accelerator Laboratory. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.
What country is AS3671 registered in?
AS3671 is registered in United States. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
