AS1742
Harvard University · harvard.edu
United States
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| Field | Value |
|---|---|
| Country |
United States
|
| Website | harvard.edu |
| Hosted domains | 296 |
| Number of IPv4 | 203,520 |
| Number of IPv6 | 84,185,967,300,503,931,839,013,978,112 |
| ASN type | Education |
| Registry | arin |
| Allocated | 34 years ago on Feb 19, 1992 |
| Updated | 2 years ago on Dec 21, 2023 |
IP Ranges
| Netblock | Company | Num of IPs |
|---|---|---|
| 128.103.0.0/16 | Harvard University | 65,536 |
| 131.142.0.0/16 | Smithsonian Astrophysical Observatory | 65,536 |
| 140.247.0.0/16 | Harvard University | 65,536 |
| 65.112.0.0/20 | Harvard University | 4,096 |
| 199.94.60.0/22 | Harvard University | 1,024 |
| 67.134.204.0/22 | Harvard University | 1,024 |
| 140.247.111.0/24 | Harvard University | 256 |
| 140.247.152.0/24 | Harvard University | 256 |
| 140.247.174.0/24 | Harvard University | 256 |
| 140.247.236.0/24 | Harvard University | 256 |
| 192.131.102.0/24 | Harvard University | 256 |
| 192.54.223.0/24 | Harvard University | 256 |
| 192.5.66.0/24 | Harvard University | 256 |
| Netblock | Company |
|---|---|
| 2607:fb60::/32 | Harvard University |
| 2602:fca9::/36 | Harvard University |
| 2607:fb60:2404::/46 | Harvard University |
| 2620:32:8000::/48 | Smithsonian Astrophysical Observatory |
WHOIS Details
ASHandle: AS1742
OrgID: AS1742
ASName: AS1742
ASNumber: AS1742
RegDate: 0000-00-00
Updated: 0000-00-00
TechHandle: AA00-AAAA
Source: AAAA
Hosted Domains
There are 296 domain names hosted across 54 IP addresses on this ASN.
| IP Address | Domain | Domains on this IP |
|---|---|---|
| 128.103.64.94 | ██████████ | 105 |
| 128.103.64.74 | ████████ | 94 |
| 131.142.21.11 | ██████████ | 8 |
| 131.142.21.13 | ██████████ | 5 |
| 140.247.63.51 | ███████ | 4 |
| 65.112.0.71 | ██████████ | 4 |
| 140.247.63.234 | ████████ | 3 |
| 140.247.173.13 | ██████████ | 3 |
| 128.103.124.40 | ██████████ | 3 |
| 140.247.89.135 | █████████ | 3 |
Peers
There are 7 peers for this ASN.
| Peers | Name |
|---|---|
| AS10578 | Harvard University |
| AS11164 | Internet2 |
| AS11537 | Internet2 |
| AS13315 | Harvard Business School |
| AS174 | Cogent Communications |
| AS3356 | Level 3 Parent, LLC |
| AS40127 | Longwood Medical and Academic Area (LMA) |
Downstreams
There are 2 downstreams for this ASN.
Pingable IPs
244 IPs in this ASN replied to an ICMP ping during our most recent internet scan. Learn more.
| IP Address | ASN | Details |
|---|---|---|
| 140.247.36.197 |
1.39ms from Boston,
US
|
|
| 140.247.95.36 |
1.29ms from Boston,
US
|
|
| 140.247.111.91 |
3.53ms from Boston,
US
|
|
| 128.103.28.1 |
1.51ms from Boston,
US
|
|
| 140.247.123.198 |
1.33ms from Boston,
US
|
|
| 140.247.204.12 |
1.42ms from Boston,
US
|
|
| 140.247.212.151 |
1.37ms from Boston,
US
|
|
| 128.103.170.130 |
1.35ms from Boston,
US
|
|
| 140.247.68.174 |
1.31ms from Boston,
US
|
|
| 128.103.0.57 |
1.11ms from Boston,
US
|
|
| 140.247.83.223 |
1.40ms from Boston,
US
|
|
| 140.247.162.232 |
1.59ms from Boston,
US
|
|
| 140.247.128.85 |
1.47ms from Boston,
US
|
|
| 128.103.172.1 |
1.39ms from Boston,
US
|
|
| 140.247.105.53 |
1.38ms from Boston,
US
|
|
| 140.247.206.249 |
1.49ms from Boston,
US
|
|
| 2607:fb60:1010:2172::60 |
5.70ms from New York City,
US
|
|
| 140.247.233.194 |
1.06ms from Boston,
US
|
|
| 140.247.186.127 |
1.52ms from Boston,
US
|
|
| 128.103.160.228 |
1.05ms from Boston,
US
|
|
| 128.103.96.1 |
1.37ms from Boston,
US
|
|
| 140.247.64.65 |
1.49ms from Boston,
US
|
|
| 140.247.139.219 |
1.49ms from Boston,
US
|
|
| 140.247.90.40 |
1.32ms from Boston,
US
|
|
| 128.103.215.1 |
1.53ms from Boston,
US
|
Other Pingable IPs
Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.
| IP Address | ASN | Details |
|---|---|---|
| 86.97.94.110 |
4.51ms from Al Fujairah City,
AE
|
|
| 213.184.101.254 |
3.01ms from Amsterdam,
NL
|
|
| 71.210.182.254 |
8.24ms from Ashburn,
US
|
|
| 23.25.106.238 |
6.85ms from Ashburn,
US
|
|
| 94.226.126.46 |
7.80ms from Brussels,
BE
|
|
| 156.222.66.158 |
2.90ms from Cairo,
EG
|
|
| 216.56.51.14 |
3.36ms from Chicago,
US
|
|
| 184.96.48.254 |
1.33ms from Denver,
US
|
|
| 217.87.133.190 |
8.61ms from Frankfurt am Main,
DE
|
|
| 27.74.67.94 |
0.96ms from Ho Chi Minh City,
VN
|
|
| 38.47.223.254 |
0.90ms from Hong Kong,
HK
|
|
| 154.20.194.94 |
0.62ms from Kelowna,
CA
|
|
| 81.84.203.254 |
1.49ms from Lisbon,
PT
|
|
| 115.166.11.110 |
1.60ms from Melbourne,
AU
|
|
| 66.229.147.110 |
4.20ms from Miami,
US
|
|
| 82.49.73.78 |
6.05ms from Milan,
IT
|
|
| 44.247.26.190 |
4.52ms from Portland,
US
|
|
| 108.186.244.254 |
0.83ms from San Jose,
US
|
|
| 187.195.128.62 |
10.61ms from Santiago de Queretaro,
MX
|
|
| 2.70.155.110 |
7.35ms from Stockholm,
SE
|
|
| 140.112.161.254 |
1.67ms from Taipei,
TW
|
|
| 60.250.213.254 |
1.93ms from Taipei,
TW
|
|
| 153.218.120.126 |
2.75ms from Tokyo,
JP
|
|
| 222.149.58.78 |
15.19ms from Tokyo,
JP
|
|
| 219.140.142.46 |
2.35ms from Wuhan,
CN
|
Traceroute
Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this ASN. Learn more.
IPinfo ProbeNet
in Amsterdam, NL
Related Networks
What is an ASN?
Autonomous System Numbers (ASNs) are assigned to entities such as Internet Service Providers and other large organizations that control blocks of IP addresses. This network page, and the organization field that's shown on the main IP address information page and also returned in the geolocation API are based on the ASN.
The ASN details will often correspond to the IP address owner, but for smaller organizations it may be that organization's parent, or their ISP. Find out more about AS1742 at robtex.
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