AS27

Summary

Country	United States
Organization	University of Maryland
Domain	umd.edu
Number of IPv4	140,800
Number of IPv6	7.2536× 1024
AS Type	Education
Registry	ARIN
Allocated	August 28, 1984 (about 41 years ago)
Updated	February 18, 2014 (about 11 years ago)

IP Ranges

AS27 announces 7 IPv4 ranges and 6 IPv6 ranges.

That's a total of 140,800 IPv4 addresses and 7.2536× 10²⁴ IPv6 addresses.

Prefix	Organization	Size	Registry	Status
128.8.0.0/16	University of Maryland	65,536	ARIN	ALLOCATION
129.2.0.0/16	University of Maryland	65,536	ARIN	ALLOCATION
192.54.94.0/23	University of Maryland	512	ARIN	ALLOCATION
192.54.96.0/21	University of Maryland	2,048	ARIN	ALLOCATION
192.54.100.0/22	University of Maryland	1,024	ARIN	ALLOCATION
206.196.160.0/20	University of Maryland	4,096	ARIN	ALLOCATION
206.196.184.0/21	University of Maryland	2,048	ARIN	ALLOCATION

Prefix	Organization	Size	Registry	Status
2605:880::/48	University of Maryland	1.2089× 1024	ARIN	ALLOCATION
2605:880:1::/48	University of Maryland	1.2089× 1024	ARIN	ALLOCATION
2605:880:10::/48	University of Maryland	1.2089× 1024	ARIN	ALLOCATION
2605:880:20::/48	University of Maryland	1.2089× 1024	ARIN	ALLOCATION
2605:880:22::/48	University of Maryland	1.2089× 1024	ARIN	ALLOCATION
2605:880:30::/48	University of Maryland	1.2089× 1024	ARIN	ALLOCATION

Peers

AS27 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

AS27 connects to the global Internet via at least 1 upstream provider. In this setup, AS27 acts as a customer, subscribing to these transit services to obtain full BGP routing information and ensure reliable, redundant access to external networks.

Downstreams

AS27 currently has no downstream networks, meaning it does not serve as a transit provider to customer networks.