NetRange: 209.2.47.0 - 209.2.51.255
CIDR: 209.2.47.0/24, 209.2.48.0/22
NetName: LDGO
NetHandle: NET-209-2-47-0-2
Parent: NET209 (NET-209-0-0-0-0)
NetType: Direct Allocation
OriginAS:
Organization: Lamont-Doherty Earth Observatory of Columbia University (LDGO)
RegDate: 2025-11-20
Updated: 2025-11-20
Ref: https://rdap.arin.net/registry/ip/209.2.47.0

OrgName: Lamont-Doherty Earth Observatory of Columbia University
OrgId: LDGO
Address: Route 9W
City: Palisades
StateProv: NY
PostalCode: 10964
Country: US
RegDate: 1988-03-16
Updated: 2025-09-18
Ref: https://rdap.arin.net/registry/entity/LDGO

OrgAbuseHandle: CU-NOC-ARIN
OrgAbuseName: Columbia University Computer Operations
OrgAbusePhone: +1-212-854-1919
OrgAbuseEmail: noc@columbia.edu
OrgAbuseRef: https://rdap.arin.net/registry/entity/CU-NOC-ARIN

OrgNOCHandle: CU-NOC-ARIN
OrgNOCName: Columbia University Computer Operations
OrgNOCPhone: +1-212-854-1919
OrgNOCEmail: noc@columbia.edu
OrgNOCRef: https://rdap.arin.net/registry/entity/CU-NOC-ARIN

OrgTechHandle: LDEOI-ARIN
OrgTechName: LDEO IT
OrgTechPhone: +1-845-365-8698
OrgTechEmail: request@ldeo.columbia.edu
OrgTechRef: https://rdap.arin.net/registry/entity/LDEOI-ARIN

OrgAbuseHandle: LDEOI-ARIN
OrgAbuseName: LDEO IT
OrgAbusePhone: +1-845-365-8698
OrgAbuseEmail: request@ldeo.columbia.edu
OrgAbuseRef: https://rdap.arin.net/registry/entity/LDEOI-ARIN

OrgNOCHandle: LDEOI-ARIN
OrgNOCName: LDEO IT
OrgNOCPhone: +1-845-365-8698
OrgNOCEmail: request@ldeo.columbia.edu
OrgNOCRef: https://rdap.arin.net/registry/entity/LDEOI-ARIN

NetRange: 209.2.48.0 - 209.2.51.255
CIDR: 209.2.48.0/22
NetName: SPRINT-D10233
NetHandle: NET-209-2-48-0-1
Parent: LDGO (NET-209-2-47-0-2)
NetType: Reassigned
OriginAS:
Organization: Nysernet/Columbia University (NYSERN-31)
RegDate: 1997-01-23
Updated: 2025-11-20
Ref: https://rdap.arin.net/registry/ip/209.2.48.0

OrgName: Nysernet/Columbia University
OrgId: NYSERN-31
Address: 119th Street and Broadway
City: New York
StateProv: NY
PostalCode: 10027
Country: US
RegDate: 1997-01-23
Updated: 2011-09-24
Ref: https://rdap.arin.net/registry/entity/NYSERN-31

OrgAbuseHandle: CKN23-ARIN
OrgAbuseName: No, Contact Known
OrgAbusePhone: +1-800-555-1234
OrgAbuseEmail: nobody@example.com
OrgAbuseRef: https://rdap.arin.net/registry/entity/CKN23-ARIN

OrgTechHandle: CKN23-ARIN
OrgTechName: No, Contact Known
OrgTechPhone: +1-800-555-1234
OrgTechEmail: nobody@example.com
OrgTechRef: https://rdap.arin.net/registry/entity/CKN23-ARIN

RTechHandle: ZC85-ARIN
RTechName: Hostmaster
RTechPhone: +1-212-854-6778
RTechEmail: hostmaster@columbia.edu
RTechRef: https://rdap.arin.net/registry/entity/ZC85-ARIN