IP Address Information For 131.142.41.8
IP address information can vary in different details, from the IP's server and datacenters, WHOIS information, all the way to geolocation and longitude/latitude coordinates, and
goes all the way to the IP address' network organization, IP ranges, appearance in DNSBL blacklists, and more.
In this page we have collected a sample of information for the IP address 131.142.41.8.
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General information:
- IP Address: 131.142.41.8
- DNS Hostname (PTR Record): head.cfa.harvard.edu
- DNS Nameservers: a1-171.akam.net, a10-66.akam.net, a11-67.akam.net, a16-64.akam.net, a6-66.akam.net, a7-65.akam.net
- DNS Zone: 142.131.in-addr.arpa
- Network route: 131.142.0.0/16
- Network owner: Harvard University
- ASN #: 1742
- Part of range: 131.142.41.0/24
Geographic location:
- Country: United States - US
- City: Cambridge
- State/Region: Massachusetts
- Longitude: -71.105743
- Latitude: 42.375111
- Timezone: -04:00
Location on the map:
Network speed information:
-
Mobile:,Download299.41MbpsUpload20.34Mbps
-
Broadband:,Download390.28MbpsUpload203.00Mbps
IP Address 131.142.41.8 WHOIS Information:
# # ARIN WHOIS data and services are subject to the Terms of Use # available at: https://www.arin.net/resources/registry/whois/tou/ # # If you see inaccuracies in the results, please report at # https://www.arin.net/resources/registry/whois/inaccuracy_reporting/ # # Copyright 1997-2026, American Registry for Internet Numbers, Ltd. # NetRange: 131.142.0.0 - 131.142.255.255 CIDR: 131.142.0.0/16 NetName: CFA-NET NetHandle: NET-131-142-0-0-1 Parent: NET131 (NET-131-0-0-0-0) NetType: Direct Allocation OriginAS: Organization: Smithsonian Astrophysical Observatory (SI-2-Z) RegDate: 1988-11-21 Updated: 2023-12-18 Ref: https://rdap.arin.net/registry/ip/131.142.0.0 OrgName: Smithsonian Astrophysical Observatory OrgId: SI-2-Z Address: 60 Garden St. City: Cambridge StateProv: MA PostalCode: 02138 Country: US RegDate: 2023-11-17 Updated: 2025-05-12 Ref: https://rdap.arin.net/registry/entity/SI-2-Z OrgAbuseHandle: SAAP-ARIN OrgAbuseName: SAO Admin Abuse POC OrgAbusePhone: +1-617-496-7931 OrgAbuseEmail: achesleigh@cfa.harvard.edu OrgAbuseRef: https://rdap.arin.net/registry/entity/SAAP-ARIN OrgNOCHandle: SAP26-ARIN OrgNOCName: SAO Admin POC OrgNOCPhone: +1-617-496-7931 OrgNOCEmail: achesleigh@cfa.harvard.edu OrgNOCRef: https://rdap.arin.net/registry/entity/SAP26-ARIN OrgTechHandle: SAP26-ARIN OrgTechName: SAO Admin POC OrgTechPhone: +1-617-496-7931 OrgTechEmail: achesleigh@cfa.harvard.edu OrgTechRef: https://rdap.arin.net/registry/entity/SAP26-ARIN RTechHandle: RAH81-ARIN RTechName: Hewett, Robert A RTechPhone: +1-617-384-6594 RTechEmail: rhewett@cfa.harvard.edu RTechRef: https://rdap.arin.net/registry/entity/RAH81-ARIN # # ARIN WHOIS data and services are subject to the Terms of Use # available at: https://www.arin.net/resources/registry/whois/tou/ # # If you see inaccuracies in the results, please report at # https://www.arin.net/resources/registry/whois/inaccuracy_reporting/ # # Copyright 1997-2026, American Registry for Internet Numbers, Ltd. #
Reputation information:
- Sender score: None - IP doesnt send emails
Blacklists information:
- Listed in Spamhaus: no
- Listed in Barracuda: no
- Listed in Spamcop: no
- More blacklists: Full blacklists test on 131.142.41.8
Email behaviour monitor:
The IP address 131.142.41.8 appears to be an active mail server. The following charts represent data the community has gathered by observing the mail sending behaviour of this IP address during the last 10 days from 31-05-26 to 10-06-26: