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 v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →
About Rice University
William Marsh Rice University, also known as Rice University, is a private research university in Houston, Texas, United States. Established in 1912, it spans 300 acres.
Network profile
Source: PeeringDB →Present at 3 internet exchanges: Equinix Dallas, HOUIX: Main, Equinix Ashburn
Top CIDR ranges
| CIDR | IPs | PTR Density | Organization | Country | State | City |
|---|---|---|---|---|---|---|
| 198.32.224.0/20 | 4.1K |
76.2%
|
Rice University | US | Texas | Houston |
| 198.32.232.0/21 | 2.0K |
0.0%
|
Rice University | US | — | — |
| 198.32.224.0/22 | 1.0K |
0.0%
|
Rice University | US | — | — |
| 198.32.228.0/23 | 512 |
0.0%
|
Rice University | US | — | — |
| 198.32.230.0/24 | 256 |
0.0%
|
Rice University | US | — | — |
| 198.32.231.0/25 | 128 |
0.0%
|
Rice University | US | — | — |
| 198.32.231.128/25 | 128 |
0.0%
|
Rice University | NP | — | — |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS4557 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 |
|---|---|---|
| 198.32.234.0/24 | 8,274 | 2026-07-24 14:53:11 |
| 198.32.233.0/24 | 8,271 | 2026-07-24 14:53:11 |
| 198.32.232.0/24 | 8,238 | 2026-07-24 14:53:11 |
| 198.32.224.0/20 | 8,235 | 2026-07-24 14:53:11 |
| 198.32.238.0/24 | 8,063 | 2026-07-24 14:53:11 |
| 198.32.229.0/24 | 88 | 2026-07-23 09:35:45 |
Frequently Asked Questions
What is AS4557?
AS4557 is an Autonomous System Number assigned to Rice 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 AS4557 announce?
AS4557 announces 4.1K IPv4 addresses distributed across 1 routed CIDR prefixes. The network is registered in United States.
Who operates AS4557?
AS4557 is operated by Rice University. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.
What country is AS4557 registered in?
AS4557 is registered in United States. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
