$ query “AS397112” --type=asn → 1 result(s)
AS397112 · ILLINOIS-MATH-SCIENCE
Illinois Mathematics and Science Academy
AS397112 belongs to Illinois Mathematics and Science Academy and is an educational/research stub network, based in the United States since 2018. The system announces a respectable 57 344 IPv4 addresses. Most of its address space is geolocated to the United States, with additional presence in Australia. No IPv6 support — it's 2026, just saying.
Basic Information
- Country
- 🇺🇸 United States
- Category
- Education/Research
- Network Role
- Stub Network
- Data Origin
- Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
- Registered
- October 16, 2018
- Last Changed
- March 04, 2026
- Last Seen
- April 17, 2026 (active)
Prefix Summary
- IPv4 Prefixes (raw / aggregated)
- 6 / 3
- IPv6 Prefixes (raw / aggregated)
- 0 / 0
- IPv4 Addresses
- 57 344
- Largest IPv4 Prefix
- /17 (32 768 addresses)
- Geolocated Countries
- 🇺🇸 United States (65 536 IPs), 🇦🇺 Australia (24 576 IPs)
- Prefix Changed
- March 04, 2026
Reputation
- Reputation
- Pristine — 0 flagged IPs
Connectivity Summary
- Upstream Providers
- 2 upstreams providing transit
- Degree
- 2 unique BGP neighbors
- Reach
- 0 networks in customer cone
Upstream Providers (2)
Prefix Lists
IPv4 Prefixes (6 total)
- 143.195.0.0/17 (32 768 addresses (/17 prefix))
- 143.195.128.0/18 (16 384 addresses (/18 prefix))
- 143.195.192.0/19 (8 192 addresses (/19 prefix))