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 SRI International
SRI International, originally the Stanford Research Institute (SRI), is a nonprofit scientific research institute and organization headquartered in Menlo Park, California, United States. It was established in 1946 by trustees of Stanford University to serve as a center of innovation.
Top CIDR ranges
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS264 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 |
|---|---|---|
| 128.57.92.0/24 | 14,730 | 2026-09-12 15:44:37 |
| 128.57.216.0/24 | 14,729 | 2026-09-12 15:44:37 |
| 128.57.90.0/24 | 14,668 | 2026-09-12 15:44:37 |
| 128.57.217.0/24 | 14,654 | 2026-09-12 15:44:37 |
| 128.57.89.0/24 | 14,634 | 2026-09-12 15:44:37 |
| 128.57.93.0/24 | 14,629 | 2026-09-12 15:44:37 |
| 128.57.47.0/24 | 14,616 | 2026-09-12 15:44:37 |
| 192.47.243.0/24 | 13,646 | 2026-09-12 14:29:55 |
| 192.5.38.0/24 | 13,638 | 2026-09-12 14:29:55 |
| 128.57.62.0/24 | 13,405 | 2026-09-12 14:29:41 |
| 128.57.60.0/24 | 13,338 | 2026-09-12 14:29:41 |
| 128.57.50.0/24 | 13,299 | 2026-09-12 14:29:41 |
| 128.57.61.0/24 | 13,254 | 2026-09-12 14:29:41 |
| 128.57.208.0/24 | 12,536 | 2026-09-12 14:29:55 |
| 128.57.209.0/24 | 12,433 | 2026-09-12 14:29:55 |
| 128.18.0.0/16 | 12,341 | 2026-09-12 14:29:55 |
| 128.57.128.0/23 | 12,313 | 2026-09-12 14:29:55 |
| 192.5.67.0/24 | 12,210 | 2026-09-12 14:29:55 |
| 192.47.254.0/24 | 12,085 | 2026-09-12 14:29:55 |
| 192.12.16.0/24 | 12,083 | 2026-09-12 14:29:55 |
| 192.12.204.0/24 | 12,045 | 2026-09-12 14:29:55 |
| 192.5.93.0/24 | 12,044 | 2026-09-12 14:29:55 |
| 192.33.33.0/24 | 12,042 | 2026-09-12 14:29:55 |
| 192.5.92.0/24 | 12,030 | 2026-09-12 14:29:55 |
| 192.35.160.0/24 | 12,026 | 2026-09-12 14:29:55 |
| 192.35.159.0/24 | 12,024 | 2026-09-12 14:29:55 |
| 192.48.80.0/24 | 12,020 | 2026-09-12 14:29:55 |
| 192.67.67.0/24 | 12,019 | 2026-09-12 14:29:55 |
| 192.12.203.0/24 | 12,019 | 2026-09-12 14:29:55 |
| 192.12.202.0/24 | 12,019 | 2026-09-12 14:29:55 |
| 192.12.201.0/24 | 12,019 | 2026-09-12 14:29:55 |
| 192.12.199.0/24 | 12,016 | 2026-09-12 14:29:55 |
| 192.12.200.0/24 | 12,010 | 2026-09-12 14:29:55 |
| 192.12.198.0/24 | 12,007 | 2026-09-12 14:29:55 |
| 192.12.197.0/24 | 12,002 | 2026-09-12 14:29:55 |
| 192.12.5.0/24 | 11,865 | 2026-09-12 14:29:55 |
| 192.12.33.0/24 | 11,813 | 2026-09-12 14:29:55 |
Frequently Asked Questions
What is AS264?
AS264 is an Autonomous System Number assigned to SRI International. 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 AS264 announce?
AS264 announces 75.0K IPv4 addresses distributed across 28 routed CIDR prefixes. The network is registered in United States.
Who operates AS264?
AS264 is operated by SRI International. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.
What country is AS264 registered in?
AS264 is registered in United States. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
