AS31822
City University of New York
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 →
AS31822 — global IP footprint
Cities where AS31822 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 |
|---|---|---|---|---|---|---|
| 128.228.0.0/16 | 65.5K |
1.0%
|
City University of New York | US | New York | Queens |
| 134.74.0.0/16 | 65.5K |
0.4%
|
City University of New York | US | New York | Pelham |
| 146.95.0.0/16 | 65.5K |
5.2%
|
City University of New York | US | New York | Queens |
| 146.96.0.0/16 | 65.5K |
2.7%
|
City University of New York | US | New York | New York |
| 146.111.0.0/16 | 65.5K |
0.3%
|
City University of New York | US | New York | Brooklyn |
| 146.245.0.0/16 | 65.5K |
3.9%
|
City University of New York | US | New York | Brooklyn |
| 148.84.0.0/16 | 65.5K |
3.5%
|
City University of New York | US | New York | The Bronx |
| 149.4.0.0/16 | 65.5K |
4.6%
|
City University of New York | US | New York | Queens |
| 150.210.0.0/16 | 65.5K |
0.2%
|
City University of New York | US | New York | New York |
| 163.238.0.0/16 | 65.5K |
0.1%
|
City University of New York | US | New York | Staten Island |
| 198.61.16.0/20 | 4.1K |
2.7%
|
City University of New York | US | New York | Queens |
| 198.180.141.0/24 | 256 |
7.4%
|
City University of New York | US | — | — |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS31822 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 |
|---|---|---|
| 150.210.0.0/16 | 18,741 | 2026-09-11 09:03:31 |
| 149.4.0.0/16 | 18,735 | 2026-09-11 09:03:31 |
| 146.245.0.0/16 | 17,285 | 2026-09-11 09:03:31 |
| 134.74.0.0/16 | 11,800 | 2026-09-11 09:03:30 |
| 128.228.0.0/16 | 11,692 | 2026-09-11 09:03:26 |
| 146.95.0.0/16 | 11,636 | 2026-09-11 09:03:30 |
| 146.96.0.0/16 | 11,337 | 2026-09-11 09:03:26 |
| 148.84.0.0/16 | 11,326 | 2026-09-11 09:03:31 |
| 163.238.0.0/16 | 11,199 | 2026-09-11 09:03:31 |
| 146.111.0.0/16 | 11,150 | 2026-09-11 09:03:30 |
| 198.61.16.0/20 | 10,105 | 2026-09-11 09:03:31 |
| 198.180.141.0/24 | 9,773 | 2026-09-11 09:03:26 |
Frequently Asked Questions
What is AS31822?
AS31822 is an Autonomous System Number assigned to City University of New York. 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 AS31822 announce?
AS31822 announces 659.7K IPv4 addresses distributed across 12 routed CIDR prefixes. The network is registered in United States.
Who operates AS31822?
AS31822 is operated by City University of New York. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.
What country is AS31822 registered in?
AS31822 is registered in United States. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
