AS104
University of Colorado at Boulder — colorado.edu
Summary
| Country |
 United States
|
| Organization | University of Colorado at Boulder |
| Domain | colorado.edu |
| Number of IPv4 | 91,136 |
| Number of IPv6 | 7.9229× 1028 |
| AS Type | Education |
| Registry | ARIN |
| Allocated | April 09, 1987 (about 38 years ago) |
| Updated | June 25, 2019 (about 5 years ago) |
IP Ranges
AS104 announces 20 IPv4 ranges and 2 IPv6 ranges.
That's a total of 91,136 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 |
| 129.19.192.0/18 |
University of Colorado Boulder
|
16,384 | ARIN | REALLOCATION |
| 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
AS104 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
AS104 connects to the global Internet via at least 3 upstream providers. In this setup, AS104 acts as a customer, subscribing to these transit services to obtain full BGP routing information and ensure reliable, redundant access to external networks.
Downstreams
AS104 currently has no downstream networks, meaning it does not serve as a transit provider to customer networks.