AS14 Columbia University

COLUMBIA-GW - Columbia University · registered in the United States

IPv4 addresses208,89611 prefixes · 0.007% of announced IPv4

Rank in United States#310largest network in US by IPv4 space, of 18,338 · 0.02% of US

Rank worldwide#1,046of 79,396 networks with IPv4

IPv61 x /32 (65,536 x /48)1 prefixes

CountryUnited States18,679 ASNs registered there

Open AS14 in ASN lookup Look up an IP in this network (128.59.0.1) All networks in United States

IPv4 prefixes

All 11 prefixes, in address order.

128.59.0.0/16
129.236.0.0/16
160.39.0.0/16
192.5.43.0/24
192.12.82.0/24
207.10.136.0/21
209.2.47.0/24
209.2.48.0/22
209.2.185.0/24
209.2.208.0/20
209.2.224.0/20

IPv6 prefixes

All 1 prefix.

2001:18d8::/32

Similar-sized networks in United States

ASNNameIPv4 addresses

AS2055#307 LSU - Louisiana State University211,456

AS38#308 UIUC - University of Illinois210,944

AS10846#309 DEERE - Deere & Company209,152

AS7896#311 NU-AS - The Board of Regents of the University of Nebraska208,640

AS7270#312 NET2PHONE - IDT Corporation208,128

AS3464#313 ASC-NET - Alabama Supercomputer Authority207,616

IP-to-ASN data: iptoasn.com (public domain). Snapshot downloaded 2026-11-11, refreshed daily. Ranges are what each network announces in BGP, not registry allocations. Data sources