AS Number
AS102
AS Name
NSF-HQ-AS
Org Name
U.S. National Science Foundation
Registry

arin

RegDate

Updated

2025-02-11

AS102 Looking Glass
IPv4Prefixes

4

IPv6Prefixes

1

IPv4 NUMs

66,048

IPv6 NUMs(/64)

16,777,216

66,048 IPv4 Addresses
CIDR Description IP Num
128.150.0.0/24 National Science Foundation 256
128.150.0.0/16 National Science Foundation 65536
192.12.209.0/24 National Science Foundation 256
198.181.231.0/24 National Science Foundation 256
CIDR Description IP NUMs(prefix /64)
2620:10f:6000::/40 National Science Foundation 16777216
AS Description Country/Region IPv4 NUMs IPv6 NUMs IPv4 IPv6
AS6223 CENTURYLINK-MTIPS1-STN - CenturyLink Communications, LLC, US United States 2,560 1,114,112 IPv4 IPv4 IPv6 IPv6
ASNumber:       102
ASName:         NSF-HQ-AS
ASHandle:       AS102
RegDate:        1987-03-31
Updated:        2025-02-11    
Ref:            https://rdap.arin.net/registry/autnum/102


OrgName:        U.S. National Science Foundation
OrgId:          NSF
Address:        2415 Eisenhower Avenue
City:           Alexandria
StateProv:      VA
PostalCode:     22314
Country:        US
RegDate:        
Updated:        2025-02-11
Ref:            https://rdap.arin.net/registry/entity/NSF


OrgTechHandle: BEVER25-ARIN
OrgTechName:   Beverstock, David 
OrgTechPhone:  +1-571-296-5657 
OrgTechEmail:  dbeverst@nsf.gov
OrgTechRef:    https://rdap.arin.net/registry/entity/BEVER25-ARIN

OrgNOCHandle: BEVER25-ARIN
OrgNOCName:   Beverstock, David 
OrgNOCPhone:  +1-571-296-5657 
OrgNOCEmail:  dbeverst@nsf.gov
OrgNOCRef:    https://rdap.arin.net/registry/entity/BEVER25-ARIN

OrgAbuseHandle: BEVER25-ARIN
OrgAbuseName:   Beverstock, David 
OrgAbusePhone:  +1-571-296-5657 
OrgAbuseEmail:  dbeverst@nsf.gov
OrgAbuseRef:    https://rdap.arin.net/registry/entity/BEVER25-ARIN

OrgNOCHandle: NSFNO-ARIN
OrgNOCName:   NSF NOC
OrgNOCPhone:  +1-703-292-5050 
OrgNOCEmail:  arin-noc@nsf.gov
OrgNOCRef:    https://rdap.arin.net/registry/entity/NSFNO-ARIN

OrgAbuseHandle: NSFAB-ARIN
OrgAbuseName:   NSF Abuse
OrgAbusePhone:  +1-703-292-5050 
OrgAbuseEmail:  arin-abuse@nsf.gov
OrgAbuseRef:    https://rdap.arin.net/registry/entity/NSFAB-ARIN