All ASNs

Autonomous System details for AS14

AS14

Columbia University • columbia.edu

AS14 — Columbia University

AS Name

COLUMBIA-GW

Country

United States (US)

Website

columbia.edu

Number of IPv4

208,896

Number of IPv6

7.92 × 10²⁸

ASN type

Education

Status

Assigned

Registry

ARIN

Allocated

Last updated

June 28, 2010

IP Ranges

11 IPv4 prefixes, 1 IPv6 prefixes

Prefix	Company	Number of IPs
128.59.0.0/16	Columbia University	65,536
129.236.0.0/16	Lamont-Doherty Earth Observatory of Columbia University	65,536
160.39.0.0/16	Columbia University	65,536
192.5.43.0/24	Columbia University	256
192.12.82.0/24	Columbia University	256
207.10.136.0/21	Columbia University	2,048
209.2.47.0/24	Lamont-Doherty Earth Observatory of Columbia University	256
209.2.48.0/22	Nysernet/Columbia University	1,024
209.2.185.0/24	Columbia University	256
209.2.208.0/20	The Interchurch Center/Columbia University	4,096
209.2.224.0/20	Columbia University	4,096
2001:18d8::/32	Columbia University	7.92 × 10²⁸

IP ranges are the different blocks of IP addresses advertised by an Autonomous System (AS). These ranges can be used by the same organization operating the AS, or by different organizations.

Peers of AS14

0 peers

AS14 has no peers recorded.

Peering is a direct, often free, traffic exchange between Autonomous Systems (ASNs). They share routes only to their own networks and customers, making connections faster and cheaper for that specific traffic, without providing full internet access to each other.

Upstreams of AS14

3 upstreams

AS174 AS3630 AS3754

AS14 uses these Autonomous Systems as its upstreams.

An upstream (or transit provider) is another AS that AS14 pays for full internet connectivity, allowing it to reach all global destinations and be reachable by them.

Downstreams of AS14

0 downstreams

AS14 has no downstreams recorded.

A downstream is a customer Autonomous System that pays another AS (its provider) for internet access. The provider AS carries the downstream's traffic and makes its network reachable.