AS91 — RPI-AS

AS91 announces 11 IPv4 prefixes covering 330,496 addresses and 2 IPv6 prefixes.

About this network

The network of Rensselaer Polytechnic Institute (RPI-AS), the private research university in Troy, New York and the oldest technological university in the US.

What it's used for

• Campus and research networking for RPI.

Notable

• An institutional/educational address, not commercial hosting. The low AS number reflects how early RPI connected, handed out sequentially in the internet's first years.

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

Announced prefixes

• 128.113.0.0/16
• 128.213.0.0/16
• 129.5.0.0/16
• 129.161.0.0/16
• 146.8.0.0/16
• 192.12.91.0/24
• 192.12.92.0/24
• 204.76.222.0/23
• 204.76.224.0/22
• 204.76.228.0/23
• 204.145.205.0/24
• 2620:0:bf0::/48
• 2620:0:2820::/48

Upstream networks

• AS174 Cogent Communications, LLC
• AS3356 Level 3 Parent, LLC
• AS13536 FirstLight Fiber, Inc.
• AS3754 NYSERNet

Adjacent networks

• AS174 Cogent Communications, LLC
• AS3356 Level 3 Parent, LLC
• AS13536 FirstLight Fiber, Inc.
• AS3754 NYSERNet