Reputation · trust score
A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.
- Baseline (neutral) 65
- Academic allocation +6
- Trust score 71 / 100
Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →
About Columbia University
Columbia University in the City of New York, commonly referred to as Columbia University, is a private Ivy League research university in New York City, United States. Established in 1754 as King's College by royal charter under George II of Great Britain on the grounds of Trinity Church in Manhattan, it is the oldest institution of higher education in New York and the fifth-oldest in the United States.
Columbia University — global IP footprint
Cities where Columbia University has measurable IPv4 allocation. Click any dot to open that city's page. Size and color scale with IP count.
Countries served by Columbia University
Every country where this organization has IPv4 allocations, ranked by IPs held.
Largest CIDR ranges
| CIDR | IPs | PTR Density | ASN | Country | State | City |
|---|---|---|---|---|---|---|
| 128.59.0.0/16 | 65.5K |
61.5%
|
AS14 | US | New York | New York |
| 129.236.0.0/16 | 65.5K |
12.9%
|
AS14 | US | New York | New York |
| 160.39.0.0/16 | 65.5K |
35.0%
|
AS14 | US | New York | New York |
| 209.2.208.0/20 | 4.1K |
0.0%
|
AS14 | US | — | — |
| 209.2.224.0/20 | 4.1K |
32.3%
|
AS14 | US | New York | Queens |
| 207.10.136.0/21 | 2.0K |
12.9%
|
AS14 | US | — | — |
| 209.2.48.0/22 | 1.0K |
0.0%
|
AS14 | US | — | — |
| 192.5.43.0/24 | 256 |
14.1%
|
AS14 | US | — | — |
| 192.12.82.0/24 | 256 |
5.5%
|
AS14 | US | — | — |
| 209.2.47.0/24 | 256 |
0.0%
|
AS14 | US | New York | New York |
| 209.2.185.0/24 | 256 |
0.0%
|
AS14 | US | — | — |
Frequently Asked Questions
How many IP addresses does Columbia University own?
Columbia University controls 208.9K IPv4 addresses distributed across 11 CIDR ranges. The organization is registered in United States.
What ASNs does Columbia University operate?
Columbia University operates 1 Autonomous System. Each ASN represents an independently routed network that Columbia University manages for internet traffic delivery.
What type of organization is Columbia University?
Columbia University is categorized as academic. This classification is based on the organization's primary use of its IP address allocations.
