AS1742
Harvard University — harvard.edu
Summary
| Country |
 United States
|
| Organization | Harvard University |
| Domain | harvard.edu |
| Number of IPv4 | 204,864 |
| Number of IPv6 | 8.4491× 1028 |
| AS Type | Education |
| Registry | ARIN |
| Allocated | February 19, 1992 (about 33 years ago) |
| Updated | December 21, 2023 (about 1 year ago) |
IP Ranges
AS1742 announces 15 IPv4 ranges and 4 IPv6 ranges.
That's a total of 204,864 IPv4 addresses and 8.4491× 1028 IPv6 addresses.
| Prefix | Organization | Size | Registry | Status |
|---|---|---|---|---|
| 65.112.0.0/20 |
Harvard University
|
4,096 | ARIN | REASSIGNMENT |
| 67.134.204.0/22 |
Harvard University
|
1,024 | ARIN | REASSIGNMENT |
| 128.103.0.0/16 |
Harvard University
|
65,536 | ARIN | ALLOCATION |
| 131.142.0.0/16 |
Smithsonian Astrophysical Observatory
|
65,536 | ARIN | ALLOCATION |
| 140.247.0.0/16 |
Harvard University
|
65,536 | ARIN | ALLOCATION |
| 140.247.111.0/24 |
Harvard University
|
256 | ARIN | ALLOCATION |
| 140.247.152.0/24 |
Harvard University
|
256 | ARIN | ALLOCATION |
| 140.247.174.0/24 |
Harvard University
|
256 | ARIN | ALLOCATION |
| 140.247.179.128/26 |
Harvard University
|
64 | ARIN | ALLOCATION |
| 140.247.236.0/24 |
Harvard University
|
256 | ARIN | ALLOCATION |
| 192.5.66.0/24 |
Harvard University
|
256 | ARIN | ALLOCATION |
| 192.43.216.0/24 |
Harvard University
|
256 | ARIN | ALLOCATION |
| 192.54.223.0/24 |
Harvard University
|
256 | ARIN | ALLOCATION |
| 192.131.102.0/24 |
Harvard University
|
256 | ARIN | ALLOCATION |
| 199.94.60.0/22 |
Harvard University
|
1,024 | ARIN | REASSIGNMENT |
| Prefix | Organization | Size | Registry | Status |
|---|---|---|---|---|
| 2602:fca9::/36 |
Harvard University
|
4.9518× 1027 | ARIN | ALLOCATION |
| 2607:fb60::/32 |
Harvard University
|
7.9228× 1028 | ARIN | ALLOCATION |
| 2607:fb60:2400::/40 |
Harvard University
|
3.0949× 1026 | ARIN | ALLOCATION |
| 2620:32:8000::/48 |
Smithsonian Astrophysical Observatory
|
1.2089× 1024 | ARIN | ALLOCATION |
Peers
AS1742 actively fosters the following peering relationships that enhance network performance through direct, settlement-free traffic exchange. Even with a modest number of peers, each connection serves as a strategic asset—optimizing routing, reducing latency, and minimizing transit costs.
Upstreams
AS1742 connects to the global Internet via at least 5 upstream providers. In this setup, AS1742 acts as a customer, subscribing to these transit services to obtain full BGP routing information and ensure reliable, redundant access to external networks.