AS104

Summary

Country	United States
Organization	University of Colorado at Boulder
Domain	colorado.edu
Number of IPv4	74,752
Number of IPv6	7.9229× 1028
AS Type	Education
Registry	ARIN
Allocated	April 09, 1987 (about 37 years ago)
Updated	June 25, 2019 (about 4 years ago)

IP Ranges

AS104 announces 19 IPv4 ranges and 2 IPv6 ranges.

That's a total of 74,752 IPv4 addresses and 7.9229× 10²⁸ IPv6 addresses.

Prefix	Organization	Size	Registry	Status
128.138.0.0/16	University of Colorado	65,536	ARIN	ALLOCATION
146.5.20.0/22	National Solar Observatory	1,024	ARIN	ALLOCATION
192.12.238.0/24	University of Colorado	256	ARIN	ALLOCATION
192.12.240.0/24	University of Colorado	256	ARIN	ALLOCATION
192.12.241.0/24	University of Colorado	256	ARIN	ALLOCATION
192.12.242.0/24	University of Colorado	256	ARIN	ALLOCATION
192.12.244.0/24	University of Colorado	256	ARIN	ALLOCATION
192.12.245.0/24	University of Colorado	256	ARIN	ALLOCATION
198.11.16.0/20	University of Colorado Boulder	4,096	ARIN	ALLOCATION
198.59.7.0/24	University of Colorado Boulder	256	ARIN	ALLOCATION
198.59.51.0/24	University of Colorado Boulder	256	ARIN	ALLOCATION
198.59.52.0/24	University of Colorado Boulder	256	ARIN	ALLOCATION
198.59.54.0/24	University of Colorado Boulder	256	ARIN	ALLOCATION
198.59.55.0/24	University of Colorado Boulder	256	ARIN	ALLOCATION
198.59.70.0/24	University of Colorado Boulder	256	ARIN	ALLOCATION
198.59.81.0/24	University of Colorado Boulder	256	ARIN	ALLOCATION
198.59.82.0/24	University of Colorado Boulder	256	ARIN	ALLOCATION
198.59.83.0/24	University of Colorado Boulder	256	ARIN	ALLOCATION
204.228.80.0/24	University of Colorado Boulder	256	ARIN	ALLOCATION

Prefix	Organization	Size	Registry	Status
2001:468:501::/48	University Corporation for Atmospheric Research	1.2089× 1024	ARIN	REALLOCATION
2620:18f::/32	University of Colorado Boulder	7.9228× 1028	ARIN	ALLOCATION

Peers

There is no peer for AS104.

Upstreams

There are 2 upstreams for AS104:

Downstreams

There is no downstream for AS104.