AS8745 — AS-BG-BAS

Network type: education

AS8745 announces 3 IPv4 prefixes covering 17,408 addresses and 1 IPv6 prefixes.

About this network

The Bulgarian Academy of Sciences (AS-BG-BAS) — Bulgaria's national scientific academy, founded in 1869 and the umbrella for the country's state research institutes. Roughly 17,000 IPv4 addresses plus an IPv6 /32.

What it's used for

• Connectivity for the Academy's institutes, laboratories and administration. The reverse DNS is straightforward academic naming under bas.bg, with per-institute subdomains (mechanics, biophysics and the rest) and the Academy's border routers and mail servers sitting in the same space.
• The AS aggregates the institutes rather than giving each its own; a researcher's workstation and the Academy's core routers share one address plan.

Notable

• Institutional, not eyeball. A national academy's address space carries staff, labs and scientific computing, so it looks like a large campus network: named hosts, no dynamic pools, and only a couple of upstreams.
• An IPv6 /32 for a research organisation of this size reflects the academic networks' early and generous IPv6 adoption — Europe's research community was deploying it while commercial ISPs were still ignoring it.

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

Announced prefixes

• 85.209.188.0/22
• 195.96.224.0/19
• 213.191.192.0/19
• 2a01:8880::/32

Upstream networks

• AS8262 Evolink EAD
• AS6802 Bulgarian Research and Education Network Association (BREN)

Adjacent networks

• AS8262 Evolink EAD
• AS6802 Bulgarian Research and Education Network Association (BREN)