ASN Information - AS14

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General Information

Name: Columbia University
Domain: columbia.edu
Country: US
Type: education
Registry: ARIN

Prefix Counts

IPv4 Count: 208,896
IPv6 Count: 79,228,162,514,264,337,593,543,950,336

IPv4 Prefixes

CIDR Country Network Name Organization Registry Status Size
128.59.0.0/16 US CU-NET Columbia University ARIN allocation 65,536
129.236.0.0/16 US LDGO-NET Lamont-doherty Earth Observatory of Columbia University ARIN allocation 65,536
160.39.0.0/16 US CU-NET-160-39 Columbia University ARIN allocation 65,536
192.5.43.0/24 US CUCSNET Columbia University ARIN allocation 256
192.12.82.0/24 US NET-CU-NEVIS-NET Columbia University ARIN allocation 256
207.10.136.0/21 US SPRINT-CF0A8800-21 Columbia University ARIN reassignment 2,048
209.2.47.0/24 US SPRINT-D1022F Nysernet/columbia University ARIN reassignment 256
209.2.48.0/22 US SPRINT-D10233 Nysernet/columbia University ARIN reassignment 1,024
209.2.185.0/24 US SPRINT-CF0A8800-24 Columbia University ARIN reassignment 256
209.2.208.0/20 US SPRINT-D102D0 The Interchurch Center/columbia University ARIN reassignment 4,096
209.2.224.0/20 US SPRINT-D102E000-21 Columbia University ARIN reassignment 4,096

IPv6 Prefixes

CIDR Country Network Name Organization Registry Status
2001:18d8::/32 US COLUMBIA-6 Columbia University ARIN allocation

Network Relationships

Upstreams: AS174, AS1239, AS3630, AS3754