AS6189 — EPFL-AS

AS6189 announces 3 IPv4 prefixes covering 82,176 addresses and 1 IPv6 prefixes.

About this network

EPFL-AS is the Enoch Pratt Free Library, the public library system of Baltimore and Maryland's designated State Library Resource Center. Despite the handle, this is not EPFL in Lausanne; the ARIN registrant is the Baltimore library.

What it's used for

• Sailor, the statewide data network established by Maryland's public libraries, which provides internet access and IT infrastructure to library systems across the state.
• Roughly 82k IPv4 addresses, dominated by a 169.156.0.0/16 and a 64.26.64.0/18, sized for a statewide library network rather than a single building.

Notable

• An institutional public-sector network address. The space serves library branches and the patrons using them, so it behaves like an education network rather than a residential ISP.
• The technical contact on the ASN is registered as the Sailor network engineer, which is the clearest confirmation that this AS is the library-network backbone and not the library's office LAN.

Interesting

• The handle is a genuine trap: EPFL reads instantly as École Polytechnique Fédérale de Lausanne, a Swiss university, and the AS is in fact a US public library. Registry handles reward being read carefully.

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

Announced prefixes

• 64.26.64.0/18
• 169.156.0.0/16
• 192.188.199.0/24
• 2607:f6b0::/32

Upstream networks

• AS6461 Zayo Bandwidth
• AS3356 Level 3 Parent, LLC
• AS6059 University System of Maryland

Adjacent networks

• AS6461 Zayo Bandwidth
• AS3356 Level 3 Parent, LLC
• AS6059 University System of Maryland