AS91

Summary

Country	United States
Organization	Rensselaer Polytechnic Institute
Domain	rpi.edu
Number of IPv4	264,960
Number of IPv6	1.2089× 1024
AS Type	Education
Registry	ARIN
Allocated	November 18, 1986 (about 38 years ago)
Updated	January 05, 2023 (about 2 years ago)

IP Ranges

AS91 announces 10 IPv4 ranges and 1 IPv6 range.

That's a total of 264,960 IPv4 addresses and 1.2089× 10²⁴ IPv6 addresses.

Prefix	Organization	Size	Registry	Status
128.113.0.0/16	Rensselaer Polytechnic Institute	65,536	ARIN	ALLOCATION
128.213.0.0/16	Rensselaer Polytechnic Institute	65,536	ARIN	ALLOCATION
129.161.0.0/16	Rensselaer Hartford Graduate Center, Inc.	65,536	ARIN	ALLOCATION
146.8.0.0/16	Rensselaer Polytechnic Institute	65,536	ARIN	ALLOCATION
192.12.91.0/24	Rensselaer Polytechnic Institute	256	ARIN	ALLOCATION
192.12.92.0/24	Rensselaer Polytechnic Institute	256	ARIN	ALLOCATION
204.76.222.0/23	Rensselaer Polytechnic Institute	512	ARIN	ALLOCATION
204.76.224.0/22	Rensselaer Polytechnic Institute	1,024	ARIN	ALLOCATION
204.76.228.0/23	Rensselaer Polytechnic Institute	512	ARIN	ALLOCATION
204.145.205.0/24	Rensselaer Polytechnic Institute	256	ARIN	ALLOCATION

Prefix	Organization	Size	Registry	Status
2620:0:2820::/48	Rensselaer Polytechnic Institute	1.2089× 1024	ARIN	ALLOCATION

Peers

AS91 does not have any direct peering agreements. Instead, its global connectivity is achieved through transit providers. While this setup ensures comprehensive reach, future peering could reduce latency and optimize route efficiency.

Upstreams

AS91 connects to the global Internet via at least 4 upstream providers. In this setup, AS91 acts as a customer, subscribing to these transit services to obtain full BGP routing information and ensure reliable, redundant access to external networks.

Downstreams

AS91 currently has no downstream networks, meaning it does not serve as a transit provider to customer networks.