Autonomous System details
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
There is no peer for AS104.
Downstreams
There is no downstream for AS104.