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
- Trust score 65 / 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 |
|---|---|---|---|---|---|---|
| 201.131.20.0/22 | 1.0K |
0.2%
|
BTU COMUNICACION SA DE CV | MX | — | — |
| 38.65.133.0/24 | 256 |
0.0%
|
BTU COMUNICACION SA DE CV | US | — | — |
| 200.33.20.0/24 | 256 |
0.0%
|
BTU COMUNICACION SA DE CV | MX | Guerrero | Acapulco de Juárez |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS28399 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 |
|---|---|---|
| 200.33.20.0/24 | 21,044 | 2026-08-03 14:47:53 |
| 201.131.23.0/24 | 16,866 | 2026-08-03 15:03:40 |
| 201.131.22.0/24 | 16,860 | 2026-08-03 15:03:40 |
| 201.131.21.0/24 | 16,859 | 2026-08-03 15:03:40 |
| 201.131.20.0/24 | 15,441 | 2026-08-03 15:03:40 |
| 38.65.133.0/24 | 15,389 | 2026-08-03 15:03:40 |
Frequently Asked Questions
What is AS28399?
AS28399 is an Autonomous System Number assigned to BTU COMUNICACION SA DE CV. 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 AS28399 announce?
AS28399 announces 1.5K IPv4 addresses distributed across 3 routed CIDR prefixes. The network is registered in Mexico.
Who operates AS28399?
AS28399 is operated by BTU COMUNICACION SA DE CV. The organization is based in Mexico. You can view all IP ranges and related ASNs on the organization page.
What country is AS28399 registered in?
AS28399 is registered in Mexico. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
