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HTTP/S request tool
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What is my IPv4 and IPv6?
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Misc tools
Password generator
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beta
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DNS propagation check
Port scan + probeing
WHOIS / RDAP lookup
HTTP/S request tool
TLS/SSL certificate check
beta
E-mail DNSBL blacklist check
Reverse DNS
CIDR calculator
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beta
What is my IPv4 and IPv6?
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Color picker
Lorem ipsum generator
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Result
AS1742, Harvard University
Last update of data:
28-04-2024 20:48 UTC
ASN:
AS1742 (HARVARD-UNIV)
Country:
US - United States (North America)
Org.:
Harvard University
https://www.harvard.edu
Social media:
@facebook
@twitter/X
@instagram
@instagram
@linkedin
Stats:
Peers
8
IX'es
-
Prefixes
12
IPv4
+203K
IPv6
8,4E+28
Contact:
Harvard University
HUIT Network Services
Patrick McEvilly - Director
784 Memorial Drive
02139
Cambridge
US
+1-617-495-9205
Abuse
abuse@harvard.edu
+1-617-495-3574
History
Date
Peers
IX'es
Prefixes
IPv4
IPv6
Before 28-04-2024
5
-
12
+203K
8,4E+28
28-04-2024
+3
-
-
-
-
Current
8
-
12
+203K
8,4E+28
Peers
Country
Relationship
ASN
Organization
Peers
Prefix'es
United States
Upstream
AS1239
Sprint
5.723
268
United States
Upstream
AS11164
Internet2
101
7
United States
Upstream
AS174
Cogent Communications
6.785
1.463
United States
Upstream
AS3356
Level 3 Parent, LLC
6.668
791
United States
Upstream
AS10578
Harvard University
29
8
United States
Upstream
AS11537
Internet2
124
11
United States
Downstream
AS13315
Harvard Business School
1
3
United States
Downstream
AS40127
Longwood Medical and Academic Area (LMA)
2
1
Announced (uniq) prefixes
Country
ASN
Announced prefix
Description
Size
United States
AS1742
65.112.0.0/20
Harvard University
4.096
United States
AS1742
67.134.204.0/22
Harvard University
1.024
United States
AS1742
128.103.0.0/16
Harvard University
65.536
United States
AS1742
131.142.0.0/16
Harvard University
65.536
United States
AS1742
140.247.0.0/16
Harvard University
65.536
United States
AS1742
192.5.66.0/24
Harvard University
256
United States
AS1742
192.54.223.0/24
Harvard University
256
United States
AS1742
192.131.102.0/24
Harvard University
256
United States
AS1742
199.94.60.0/22
Harvard University
1.024
Country
ASN
Announced prefix
Description
Size
United States
AS1742
2602:fca9::/36
Harvard University
5,0E+27
United States
AS1742
2607:fb60::/32
Harvard University
7,9E+28
United States
AS1742
2620:32:8000::/48
Harvard University
1,2E+24
Log
000
+000
Parse input (ASN)
000
+000
Search database for 'AS1742'
002
+002
1 ASN's found
002
+000
Done
002
+000
Load details of AS1742
013
+011
12 prefixes found
020
+007
8 peers found
022
+002
No matching IX connections found!
027
+005
6 links loaded, 6 verified
032
+005
2 historical items loaded
032
+000
Done