AS1742 Harvard University
General Info - AS1742
203,520
84,181,131,597,225,508,506,687,242,240
IP Address Ranges
| Netblock | Number of IPs | |
|---|---|---|
| 65.112.0.0/20 | 4,096 | |
| 67.134.204.0/22 | 1,024 | |
| 128.103.0.0/16 | 65,536 | |
| 131.142.0.0/16 | 65,536 | |
| 140.247.0.0/18 | 16,384 | |
| 140.247.64.0/19 | 8,192 | |
| 140.247.96.0/21 | 2,048 | |
| 140.247.104.0/22 | 1,024 | |
| 140.247.108.0/23 | 512 | |
| 140.247.110.0/24 | 256 | |
| 140.247.111.0/24 | 256 | |
| 140.247.112.0/20 | 4,096 | |
| 140.247.128.0/20 | 4,096 | |
| 140.247.144.0/21 | 2,048 | |
| 140.247.152.0/24 | 256 | |
| 140.247.153.0/24 | 256 | |
| 140.247.154.0/23 | 512 | |
| 140.247.156.0/22 | 1,024 | |
| 140.247.160.0/21 | 2,048 | |
| 140.247.168.0/22 | 1,024 | |
| 140.247.172.0/23 | 512 | |
| 140.247.174.0/24 | 256 | |
| 140.247.175.0/24 | 256 | |
| 140.247.176.0/23 | 512 | |
| 140.247.178.0/24 | 256 | |
| 140.247.179.0/25 | 128 | |
| 140.247.179.128/26 | 64 | |
| 140.247.179.192/26 | 64 | |
| 140.247.180.0/22 | 1,024 | |
| 140.247.184.0/21 | 2,048 | |
| 140.247.192.0/19 | 8,192 | |
| 140.247.224.0/21 | 2,048 | |
| 140.247.232.0/22 | 1,024 | |
| 140.247.236.0/24 | 256 | |
| 140.247.237.0/24 | 256 | |
| 140.247.238.0/23 | 512 | |
| 140.247.240.0/20 | 4,096 | |
| 192.5.66.0/24 | 256 | |
| 192.54.223.0/24 | 256 | |
| 192.131.102.0/24 | 256 | |
| 199.94.60.0/22 | 1,024 |
| Netblock | Number of IPs | |
|---|---|---|
| 2602:fca9::/36 | 4,951,760,157,141,521,099,596,496,896 | |
| 2607:fb60::/35 | 9,903,520,314,283,042,199,192,993,792 | |
| 2607:fb60:2000::/38 | 1,237,940,039,285,380,274,899,124,224 | |
| 2607:fb60:2400::/46 | 4,835,703,278,458,516,698,824,704 | |
| 2607:fb60:2404::/46 | 4,835,703,278,458,516,698,824,704 | |
| 2607:fb60:2408::/45 | 9,671,406,556,917,033,397,649,408 | |
| 2607:fb60:2410::/44 | 19,342,813,113,834,066,795,298,816 | |
| 2607:fb60:2420::/43 | 38,685,626,227,668,133,590,597,632 | |
| 2607:fb60:2440::/42 | 77,371,252,455,336,267,181,195,264 | |
| 2607:fb60:2480::/41 | 154,742,504,910,672,534,362,390,528 | |
| 2607:fb60:2500::/40 | 309,485,009,821,345,068,724,781,056 | |
| 2607:fb60:2600::/39 | 618,970,019,642,690,137,449,562,112 | |
| 2607:fb60:2800::/37 | 2,475,880,078,570,760,549,798,248,448 | |
| 2607:fb60:3000::/36 | 4,951,760,157,141,521,099,596,496,896 | |
| 2607:fb60:4000::/34 | 19,807,040,628,566,084,398,385,987,584 | |
| 2607:fb60:8000::/33 | 39,614,081,257,132,168,796,771,975,168 | |
| 2620:32:8000::/48 | 1,208,925,819,614,629,174,706,176 |
What is an Autonomous System (AS)?
An Autonomous System (AS) is a collection of connected networks that operate under a common administrative domain and share routing policies. Each AS is identified by a unique Autonomous System Number (ASN), which is used to exchange routing information with other ASs. AS can control how traffic flows through networks and then filter out unwanted traffic.
