AS21578
Universidad autonoma de Bucaramanga
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 |
|---|---|---|---|---|---|---|
| 181.119.254.0/24 | 256 |
0.0%
|
Universidad autonoma de Bucaramanga | AR | — | — |
| 190.68.254.0/24 | 256 |
0.0%
|
Universidad autonoma de Bucaramanga | CO | — | — |
| 200.69.124.0/24 | 256 |
87.9%
|
Universidad autonoma de Bucaramanga | CO | Bogota D.C. | Suba |
| 201.245.186.0/24 | 256 |
78.5%
|
Universidad autonoma de Bucaramanga | CO | — | — |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS21578 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 |
|---|---|---|
| 190.68.254.0/24 | 139,562 | 2026-07-24 01:28:18 |
| 181.119.254.0/24 | 37,710 | 2026-07-24 02:11:24 |
| 200.69.124.0/24 | 18,854 | 2026-07-24 00:07:16 |
| 201.245.186.0/24 | 18,838 | 2026-07-24 00:07:16 |
Frequently Asked Questions
What is AS21578?
AS21578 is an Autonomous System Number assigned to Universidad autonoma de Bucaramanga. 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 AS21578 announce?
AS21578 announces 1.0K IPv4 addresses distributed across 4 routed CIDR prefixes. The network is registered in Colombia.
Who operates AS21578?
AS21578 is operated by Universidad autonoma de Bucaramanga. The organization is based in Colombia. You can view all IP ranges and related ASNs on the organization page.
What country is AS21578 registered in?
AS21578 is registered in Colombia. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
