AS9521 KATECH-AS-KR Korea Automotive Technology Institute

AS9521 (KATECH-AS-KR) is held by the Korea Automotive Technology Institute (KATECH), the country's dedicated R&D institute for automotive technology and components, headquartered in Cheonan, South Chungcheong Province.

What it's used for

This is a research-campus network, and the routing evidence is unambiguous about it. RIS sees 5 IPv4 prefixes totalling 1,280 addresses, no IPv6, and a single BGP neighbour. Four of the five prefixes are contiguous /24s out of 203.250.184.0–203.250.187.0 — one /22-worth of legacy space announced as its component /24s — with a lone 210.219.46.0/24 alongside from a separate allocation. That is an institute's own site space: enough for labs, test facilities, servers and staff, and nothing more.

The single neighbour is the important number. It means KATECH takes transit from one provider and peers with nobody, which is what a national research institute looks like when it connects through a single upstream (in Korea, typically a national research network or a domestic carrier) rather than running its own interconnection. There is no customer cone here and no evidence of the network carrying anyone else's traffic.

Notable

• KATECH's remit spans conventional auto parts through to electric, hydrogen and autonomous-vehicle research, with testing and certification facilities that are physically distributed — but the routed footprint stays centralised in one small AS.
• 1,280 addresses across 5 prefixes with one upstream is a stable, low-churn profile typical of an institutional network that has not needed to grow its public address space in years.