AS397112
Illinois Mathematics and Science Academy
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 →
AS397112 — global IP footprint
Cities where AS397112 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 |
|---|---|---|---|---|---|---|
| 143.195.0.0/17 | 32.8K |
0.1%
|
Illinois Mathematics and Science Academy | US | Illinois | Aurora |
| 143.195.128.0/18 | 16.4K |
0.0%
|
Illinois Mathematics and Science Academy | US | — | — |
| 143.195.192.0/19 | 8.2K |
0.0%
|
Illinois Mathematics and Science Academy | US | — | — |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS397112 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 |
|---|---|---|
| 143.195.128.0/18 | 13,407 | 2026-07-24 15:46:57 |
| 143.195.192.0/19 | 13,377 | 2026-07-24 15:46:57 |
| 143.195.0.0/17 | 13,363 | 2026-07-24 15:46:57 |
| 143.195.3.0/24 | 11,984 | 2026-07-24 15:46:57 |
| 143.195.2.0/24 | 11,968 | 2026-07-24 15:46:57 |
| 143.195.1.0/24 | 11,960 | 2026-07-24 15:46:57 |
Frequently Asked Questions
What is AS397112?
AS397112 is an Autonomous System Number assigned to Illinois Mathematics and Science Academy. 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 AS397112 announce?
AS397112 announces 57.3K IPv4 addresses distributed across 3 routed CIDR prefixes. The network is registered in United States.
Who operates AS397112?
AS397112 is operated by Illinois Mathematics and Science Academy. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.
What country is AS397112 registered in?
AS397112 is registered in United States. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
