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 v1.1.0 — 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.
Network profile
Source: PeeringDB →AS14 — global IP footprint
Cities where AS14 has measurable IPv4 allocation. Click any dot to open that city's page. Size and color scale with IP count.
Top CIDR ranges
| CIDR | IPs | PTR Density | Organization | Country | State | City |
|---|---|---|---|---|---|---|
| 128.59.0.0/16 | 65.5K |
61.5%
|
Columbia University | US | New York | New York |
| 129.236.0.0/16 | 65.5K |
12.9%
|
Columbia University | US | New York | New York |
| 160.39.0.0/16 | 65.5K |
35.0%
|
Columbia University | US | New York | New York |
| 209.2.208.0/20 | 4.1K |
0.0%
|
Columbia University | US | — | — |
| 209.2.224.0/20 | 4.1K |
32.3%
|
Columbia University | US | New York | Queens |
| 207.10.136.0/21 | 2.0K |
12.9%
|
Columbia University | US | — | — |
| 209.2.48.0/22 | 1.0K |
0.0%
|
Columbia University | US | — | — |
| 192.5.43.0/24 | 256 |
14.1%
|
Columbia University | US | — | — |
| 192.12.82.0/24 | 256 |
5.5%
|
Columbia University | US | — | — |
| 209.2.47.0/24 | 256 |
0.0%
|
Columbia University | US | New York | New York |
| 209.2.185.0/24 | 256 |
0.0%
|
Columbia University | US | — | — |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS14 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.
| Prefix | Announcement samples | Last seen |
|---|---|---|
| 192.5.43.0/24 | 8,724 | 2026-07-23 15:28:55 |
| 207.10.136.0/21 | 8,720 | 2026-07-23 15:28:55 |
| 192.12.82.0/24 | 8,699 | 2026-07-23 15:28:55 |
| 129.236.0.0/16 | 7,991 | 2026-07-23 15:29:03 |
| 209.2.47.0/24 | 7,937 | 2026-07-23 15:29:03 |
| 209.2.48.0/22 | 7,924 | 2026-07-23 15:29:03 |
| 160.39.0.0/16 | 7,924 | 2026-07-23 15:29:03 |
| 209.2.185.0/24 | 7,906 | 2026-07-23 15:29:03 |
| 209.2.208.0/20 | 7,898 | 2026-07-23 15:29:03 |
| 128.59.0.0/16 | 7,893 | 2026-07-23 15:29:03 |
| 209.2.224.0/20 | 7,886 | 2026-07-23 15:29:03 |
Frequently Asked Questions
What is AS14?
AS14 is an Autonomous System Number assigned to Columbia University. An ASN identifies a network that controls a specific set of IP addresses and determines how traffic is routed across the internet via BGP (Border Gateway Protocol).
How many IP addresses does AS14 announce?
AS14 announces 208.9K IPv4 addresses distributed across 11 routed CIDR prefixes. The network is registered in United States.
Who operates AS14?
AS14 is operated by Columbia University. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.
What country is AS14 registered in?
AS14 is registered in United States. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
