AS55

Summary

Country	United States
Organization	University of Pennsylvania
Domain	upenn.edu
Number of IPv4	262,400
Number of IPv6	7.9228× 1028
AS Type	Education
Registry	ARIN
Allocated	December 18, 1985 (about 40 years ago)
Updated	October 14, 2021 (about 3 years ago)

IP Ranges

AS55 announces 5 IPv4 ranges and 1 IPv6 range.

That's a total of 262,400 IPv4 addresses and 7.9228× 10²⁸ IPv6 addresses.

Prefix	Organization	Size	Registry	Status
128.91.0.0/16	University of Pennsylvania	65,536	ARIN	ALLOCATION
130.91.0.0/16	University of Pennsylvania	65,536	ARIN	ALLOCATION
158.130.0.0/16	University of Pennsylvania	65,536	ARIN	ALLOCATION
165.123.0.0/16	University of Pennsylvania	65,536	ARIN	ALLOCATION
192.84.2.0/24	University of Pennsylvania	256	ARIN	ALLOCATION

Prefix	Organization	Size	Registry	Status
2607:f470::/32	University of Pennsylvania	7.9228× 1028	ARIN	ALLOCATION

Peers

AS55 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

AS55 connects to the global Internet via at least 4 upstream providers. In this setup, AS55 acts as a customer, subscribing to these transit services to obtain full BGP routing information and ensure reliable, redundant access to external networks.

Downstreams

AS55 serves as a transit provider the following ASes, delivering the BGP routes needed for global connectivity. This downstream relationship underscores AS55's role in extending Internet access beyond its own infrastructure.