131.142.0.0/16

AS1742  ·  Harvard University

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Summary

Country United States
Domain harvard.edu
ASN AS1742
Registry ARIN
ID CFA-NET

WHOIS Details

NetHandle:      NET-131-142-0-0-1
OrgID:          SI-2-Z
Parent:         NET-131-0-0-0-0
NetName:        CFA-NET
NetRange:       131.142.0.0 - 131.142.255.255
NetType:        allocation
RegDate:        1988-11-21
Updated:        2023-12-18
TechHandle:     RAH81-ARIN
Source:         ARIN


OrgID:          SI-2-Z
OrgName:        Smithsonian Astrophysical Observatory
CanAllocate:    
Street:         60 Garden St.
City:           Cambridge
State/Prov:     MA
Country:        US
PostalCode:     02138
RegDate:        2023-11-17
Updated:        2025-05-12
OrgAdminHandle: SAP26-ARIN
OrgTechHandle:  SAP26-ARIN
OrgAbuseHandle: SAAP-ARIN
OrgNOCHandle:   SAP26-ARIN
Source:         ARIN


POCHandle:      SAAP-ARIN
IsRole:         Y
LastName:       SAO Admin Abuse POC
FirstName:      
Street:         60 Garden Street
City:           Cambridge
State/Prov:     MA
Country:        US
PostalCode:     02138
RegDate:        2025-05-12
Updated:        2025-05-12
OfficePhone:    +1-617-496-7931
Mailbox:        achesleigh@cfa.harvard.edu
Mailbox:        sao-arin-abuse@cfa.harvard.edu
Source:         ARIN


POCHandle:      SAP26-ARIN
IsRole:         Y
LastName:       SAO Admin POC
FirstName:      
Street:         60 Garden Street
City:           Cambridge
State/Prov:     MA
Country:        US
PostalCode:     02138
RegDate:        2025-05-12
Updated:        2025-05-12
OfficePhone:    +1-617-496-7931
Mailbox:        achesleigh@cfa.harvard.edu
Mailbox:        sao-arin@cfa.harvard.edu
Source:         ARIN


POCHandle:      RAH81-ARIN
IsRole:         N
LastName:       Hewett
FirstName:      Robert
Street:         Smithsonian Astrophysical Observatory
Street:         60 Garden St.
City:           Cambridge
State/Prov:     MA
Country:        US
PostalCode:     02138
RegDate:        1997-10-08
Updated:        2025-01-06
OfficePhone:    +1-617-384-6594
FaxPhone:       +1-617-496-7500
Mailbox:        rhewett@cfa.harvard.edu
Source:         ARIN

Nearby Ranges

BGP prefixes that overlap with 131.0.0.0/8

Range ASN Company Num of IPs
131.244.0.0/15 AS24014 Bond University Limited 131,072
131.248.0.0/16 AS2497 ITOCHU Techno-Solutions Corporation 65,536
131.123.0.0/16 AS11050 Kent State University 65,536
131.1.0.0/16 AS20746 OLIVETTI S.p.A. 65,536
131.159.0.0/16 AS209335 Technical University of Munich 65,536
131.128.0.0/16 AS14348 University of Rhode Island 65,536
131.246.0.0/16 AS199578 Rheinland-Pfaelzische Technische Universitaet Kaiserslautern-Landau 65,536
131.168.0.0/16 AS16509 Amazon.com, Inc. 65,536
131.116.0.0/16 AS1729 Telia Company AB 65,536
131.194.0.0/16 AS19342 Trinity University 65,536
131.183.0.0/16 AS2025 University of Toledo 65,536
131.93.0.0/16 AS20115 Charter Communications LLC 65,536
131.175.0.0/16 AS198949 CINECA Consorzio Interuniversitario 65,536
131.169.0.0/16 AS1754 Deutsches Elektronen-Synchrotron DESY 65,536
131.160.0.0/16 AS158 Oy L M Ericsson Ab 65,536
131.175.0.0/16 AS137 CINECA Consorzio Interuniversitario 65,536
131.230.0.0/16 AS15119 Southern Illinois University Carbondale 65,536
131.174.0.0/16 AS1103 Radboud Universiteit Nijmegen 65,536
131.127.0.0/16 AS16509 Amazon.com, Inc. 65,536
131.115.0.0/16 AS1729 Telia Company AB 65,536
131.68.0.0/16 AS138 DoD Network Information Center 65,536
131.177.0.0/16 AS1759 Telia Finland Oyj 65,536
131.96.0.0/16 AS10631 Georgia State University 65,536
131.156.0.0/16 AS11417 Northern Illinois University 65,536
131.254.0.0/16 AS1938 Institut National de Recherche en Informatique et Automatique de Rennes 65,536
131.239.0.0/16 AS11426 Crown Castle Fiber LLC 65,536
131.224.0.0/16 AS1103 Rijksinstituut voor Volksgezondheid en Milieuhygiene 65,536
131.155.0.0/16 AS1161 P.O. Box 513 65,536
131.197.0.0/16 AS19773 Motorola - Network Computing Services 65,536
131.212.0.0/16 AS217 University of Minnesota 65,536
131.66.0.0/16 AS138 DoD Network Information Center 65,536
131.190.0.0/16 AS11003 The Procter and Gamble Company 65,536
131.203.0.0/16 AS132264 Two Degrees Mobile Limited 65,536
131.180.0.0/16 AS1128 P.O. Box 354 65,536
131.167.0.0/16 AS13335 BATTELLE MEMORIAL INSTITUTE 65,536
131.109.0.0/16 AS14464 Rhode Island Network for Educ. Technology 65,536
131.230.0.0/16 AS15118 Southern Illinois University Carbondale 65,536
131.198.0.0/16 AS1341 Rockwell Collins, Inc. 65,536
131.199.0.0/16 AS1341 Rockwell Collins, Inc. 65,536
131.203.0.0/16 AS134359 Two Degrees Mobile Limited 65,536
131.243.0.0/16 AS16 Lawrence Berkeley National Laboratory 65,536
131.151.0.0/16 AS11348 Missouri University of Science and Technology 65,536
131.67.0.0/16 AS138 DoD Network Information Center 65,536
131.91.0.0/16 AS12013 Florida Atlantic University 65,536
131.172.0.0/16 AS135893 LATROBE UNIVERSITY 65,536
131.211.0.0/16 AS1103 Heidelberglaan 8 65,536
131.114.0.0/16 AS137 UNI-Pisa 65,536
131.154.0.0/16 AS137 INFN - CNAF - Bologna 65,536
131.182.0.0/16 AS270 National Aeronautics and Space Administration 65,536

Hosted domains

There are 24 domain names hosted across 10 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
131.142.21.11 universeforum.org 8
131.142.21.13 chathull.com 5
131.142.21.12 microobservatory.org 3
131.142.185.10 adslabs.org 2
131.142.195.56 minorplanetcenter.net 2
131.142.195.62 hitran.org 1
131.142.198.76 fromearthtotheuniverse.org 1
131.142.198.86 lightexhibit.org 1
131.142.198.52 premeta.com 1
131.142.18.11 coolstars20half.com 1

Hosted domains API

Our Hosted Domains API, or Reverse IP API returns a full list of domains that are hosted on a single IP address.
Useful for Cybersecurity

Pingable IPs

29 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
131.142.18.11 AS1742 Harvard University 1.59ms from Boston, US
131.142.185.22 AS1742 Harvard University 1.51ms from Boston, US
131.142.198.129 AS1742 Harvard University 1.47ms from Boston, US
131.142.33.101 AS1742 Harvard University 1.99ms from Providence, US
131.142.21.13 AS1742 Harvard University 1.60ms from Boston, US
131.142.195.55 AS1742 Harvard University 1.50ms 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
94.66.147.112 AS6799 Ote SA (Hellenic Telecommunications Organisation) 6.86ms from Athens, GR
117.9.184.224 AS4837 CHINA UNICOM China169 Backbone 5.84ms from Beijing, CN
2.99.152.16 AS13285 TalkTalk Communications Limited 5.86ms from London, GB
24.24.138.48 AS20001 Charter Communications Inc 4.97ms from Los Angeles, US
36.152.156.240 AS56046 China Mobile communications corporation 1.47ms from Nanjing, CN
67.85.146.16 AS6128 Cablevision Systems Corp. 10.80ms from New York City, US
98.85.248.208 AS14618 Amazon.com, Inc. 0.22ms from Reston, US
14.7.162.176 AS17858 LG POWERCOMM 5.86ms from Seoul, KR
49.128.192.80 AS38705 KOREA DATA 1.10ms from Seoul, KR
178.73.245.128 AS42708 Glesys AB 0.84ms from Stockholm, SE
24.85.186.64 AS6327 Shaw Communications 9.62ms from Vancouver, CA
149.210.131.144 AS20857 Signet B.V. 0.55ms from Amsterdam, NL
31.187.244.32 AS50266 Odido Netherlands B.V. 5.54ms from Amsterdam, NL
52.236.155.16 AS8075 Microsoft Corporation 0.26ms from Amsterdam, NL
81.244.219.80 AS5432 Proximus NV 3.12ms from Brussels, BE
35.193.118.208 AS396982 Google LLC 0.12ms from Council Bluffs, US
64.182.125.48 AS54489 CoreSpace, Inc. 0.84ms from Dallas, US
81.31.255.32 AS56876 Ociris GmbH 0.71ms from Frankfurt am Main, DE
35.228.182.64 AS396982 Google LLC 0.14ms from Hamina, FI
8.223.35.208 AS45102 Alibaba (US) Technology Co., Ltd. 0.87ms from Hong Kong, HK
67.48.164.240 AS11427 Charter Communications Inc 12.21ms from Houston, US
101.173.97.48 AS1221 Telstra Limited 5.72ms from Melbourne, AU
20.169.84.16 AS8075 Microsoft Corporation 0.21ms from Phoenix, US
168.61.5.160 AS8075 Microsoft Corporation 0.58ms from San Jose, US
43.201.32.208 AS16509 Amazon.com, Inc. 0.86ms from Seoul, KR

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.

$
traceroute -a -n -q1 -f3 -m28 131.142.69.85
traceroute to 131.142.69.85 (131.142.69.85): 28 hops max, 52 byte packets
3 [AS749] 11.95.17.73 0.493 ms
4 *
6 *
7 *
8 *
9 *
10 [AS4837] 219.158.6.210 15.333 ms
11 [AS4837] 219.158.6.6 173.176 ms
12 *
13 [AS174] 154.54.43.13 155.186 ms
14 *
15 [AS174] 154.54.163.249 189.808 ms
16 [AS174] 154.54.90.22 212.772 ms
17 [AS174] 154.54.95.110 221.903 ms
18 [AS174] 154.54.166.74 207.004 ms
19 [AS174] 154.54.7.130 235.942 ms
20 [AS174] 154.54.169.198 234.333 ms
21 [AS174] 154.54.169.225 239.133 ms
22 [AS174] 38.104.186.114 232.919 ms
23 [AS1742] 128.103.0.129 240.096 ms
24 *
25 [AS1742] 128.103.252.90 270.998 ms
26 *
27 *
28 *
Measurement taken from IPinfo ProbeNet in Qingdao, CN
On

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IP address ranges, or netblocks, are groups of related IP addresses. They are usually represented as a base IP address, followed by a slash, and then a netmask which represents how many IP addresses are contained within the netblock. This format is known as CIDR. You'll also sometimes see netblocks given as a start ip address, and an end ip address, or an ip address range.

Traffic works its way around the internet based on the routing table, which contains a list of networks and their associated netblocks.

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