AS33199
Amherst Communications
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
- Isp allocation +5
- Trust score 70 / 100
Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →
Top CIDR ranges
| CIDR | IPs | PTR Density | Organization | Country | State | City |
|---|---|---|---|---|---|---|
| 135.132.192.0/18 | 16.4K |
0.0%
|
Amherst Communications | US | — | — |
| 167.253.132.0/22 | 1.0K |
0.0%
|
Amherst Communications | US | Wisconsin | Amherst |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS33199 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 |
|---|---|---|
| 167.253.132.0/22 | 6,538 | 2026-07-30 12:01:29 |
| 135.132.192.0/18 | 5,837 | 2026-07-30 12:00:00 |
Frequently Asked Questions
What is AS33199?
AS33199 is an Autonomous System Number assigned to Amherst Communications. 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 AS33199 announce?
AS33199 announces 17.4K IPv4 addresses distributed across 2 routed CIDR prefixes. The network is registered in United States.
Who operates AS33199?
AS33199 is operated by Amherst Communications. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.
What country is AS33199 registered in?
AS33199 is registered in United States. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
