AS18555 — THE-ART-INST - The Art Institute of Chicago

AS18555 announces 1 IPv4 prefixes covering 4,096 addresses and 0 IPv6 prefixes.

About this network

THE-ART-INST is the autonomous system for The Art Institute of Chicago.

What it's used for

• The address space carries internal museum infrastructure, evidenced by reverse DNS entries such as 1800.artic.edu and 2600.artic.edu.
• The AS announces 4096 IPv4 addresses across 2 prefixes with only 3 observed neighbours, indicating a small, self-contained internal network rather than a transit or access provider.

Notable

• Registrants for both prefixes (NETBLK-ARTIC) align perfectly with the announcer, listing "The Art Institute of Chicago".
• The inventory consists of two contiguous /21 blocks (198.40.16.0/21 and 198.40.24.0/21), forming a neatly subdivided corporate estate typical of a large institutional site.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 198.40.16.0/20

Upstream networks

• AS6461 Zayo Bandwidth
• AS22335 Metropolitan Research and Education Network
• AS6079 RCN

Adjacent networks

• AS6461 Zayo Bandwidth
• AS22335 Metropolitan Research and Education Network
• AS6079 RCN

Routing security

• RPKI: 0 valid, 0 invalid and 2 not-found announcements; 0 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 11 route objects.
• Listed in as-sets: AS-ICN-CUSTOMERS, AS-RCN-CUSTOMER.