AS1742
Harvard University · harvard.edu
United States
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| Field | Value |
|---|---|
| Country |
United States
|
| Website | harvard.edu |
| Hosted domains | 295 |
| 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 295 domain names hosted across 54 IP addresses on this ASN.
| IP Address | Domain | Domains on this IP |
|---|---|---|
| 128.103.64.94 | ██████████ | 103 |
| 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 |
| 140.247.173.13 | ██████████ | 3 |
| 140.247.173.125 | █████████ | 3 |
| 131.142.21.12 | ██████████ | 3 |
| 140.247.60.45 | ██████████ | 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
243 IPs in this ASN replied to an ICMP ping during our most recent internet scan. Learn more.
| IP Address | ASN | Details |
|---|---|---|
| 140.247.25.65 |
1.23ms from Boston,
US
|
|
| 140.247.112.44 |
1.36ms from Boston,
US
|
|
| 140.247.148.55 |
1.46ms from Boston,
US
|
|
| 140.247.231.225 |
1.33ms from Boston,
US
|
|
| 128.103.219.1 |
1.43ms from Boston,
US
|
|
| 140.247.91.129 |
1.20ms from Boston,
US
|
|
| 128.103.146.1 |
1.48ms from Boston,
US
|
|
| 140.247.135.117 |
1.50ms from Boston,
US
|
|
| 140.247.134.252 |
1.31ms from Boston,
US
|
|
| 140.247.212.86 |
1.48ms from Boston,
US
|
|
| 140.247.232.149 |
1.54ms from Boston,
US
|
|
| 128.103.95.1 |
1.61ms from Providence,
US
|
|
| 140.247.233.194 |
1.01ms from Boston,
US
|
|
| 128.103.137.1 |
1.30ms from Boston,
US
|
|
| 140.247.64.65 |
1.59ms from Boston,
US
|
|
| 128.103.36.1 |
1.48ms from Boston,
US
|
|
| 128.103.172.1 |
1.47ms from Boston,
US
|
|
| 128.103.200.161 |
1.28ms from Boston,
US
|
|
| 128.103.175.1 |
1.25ms from Boston,
US
|
|
| 140.247.74.73 |
1.52ms from Boston,
US
|
|
| 128.103.196.1 |
1.36ms from Boston,
US
|
|
| 140.247.200.126 |
1.65ms from Boston,
US
|
|
| 128.103.208.1 |
1.26ms from Boston,
US
|
|
| 2607:fb60:e:c::1 |
5.86ms from New York City,
US
|
|
| 140.247.151.35 |
1.97ms from Providence,
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 |
|---|---|---|
| 86.101.203.62 |
0.82ms from Budapest,
HU
|
|
| 69.207.187.14 |
19.75ms from Chicago,
US
|
|
| 103.158.171.30 |
0.75ms from Delhi,
IN
|
|
| 2.19.86.110 |
0.30ms from Duesseldorf,
DE
|
|
| 91.18.99.94 |
8.59ms from Frankfurt am Main,
DE
|
|
| 171.245.83.238 |
2.76ms from Hanoi,
VN
|
|
| 203.176.205.78 |
0.96ms from Hong Kong,
HK
|
|
| 174.170.19.174 |
7.70ms from Houston,
US
|
|
| 13.40.64.110 |
0.57ms from London,
GB
|
|
| 120.159.99.254 |
2.67ms from Melbourne,
AU
|
|
| 159.149.193.126 |
1.15ms from Milan,
IT
|
|
| 73.5.145.174 |
6.38ms from Minneapolis,
US
|
|
| 153.212.211.46 |
11.00ms from Osaka,
JP
|
|
| 76.178.187.46 |
10.71ms from Seattle,
US
|
|
| 121.190.26.110 |
1.98ms from Seoul,
KR
|
|
| 116.233.174.254 |
3.69ms from Shanghai,
CN
|
|
| 123.240.99.190 |
3.68ms from Taipei,
TW
|
|
| 27.84.241.190 |
4.90ms from Tokyo,
JP
|
|
| 118.20.193.126 |
9.45ms from Tokyo,
JP
|
|
| 153.199.101.174 |
2.79ms from Tokyo,
JP
|
|
| 75.170.153.254 |
9.21ms from Ashburn,
US
|
|
| 180.223.110.174 |
0.20ms from Ashburn,
US
|
|
| 75.245.172.190 |
15.33ms from Atlanta,
US
|
|
| 71.213.39.254 |
13.06ms from Chicago,
US
|
|
| 58.61.216.222 |
3.08ms from Guangzhou,
CN
|
Traceroute
Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this ASN. Learn more.
IPinfo ProbeNet
in Al Fujairah City, AE
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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