AS21828
Tulare County Office of Education
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 |
|---|---|---|---|---|---|---|
| 206.78.0.0/19 | 8.2K |
0.1%
|
Tulare County Office of Education | US | California | Visalia |
| 206.78.160.0/19 | 8.2K |
0.0%
|
Tulare County Office of Education | US | California | Tulare |
| 204.155.0.0/20 | 4.1K |
0.2%
|
Tulare County Office of Education | US | California | Tulare |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS21828 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 |
|---|---|---|
| 206.78.160.0/19 | 4,681 | 2026-07-24 13:53:42 |
| 206.78.0.0/19 | 4,667 | 2026-07-24 13:53:42 |
| 204.155.0.0/20 | 4,666 | 2026-07-24 13:53:42 |
Frequently Asked Questions
What is AS21828?
AS21828 is an Autonomous System Number assigned to Tulare County Office of Education. 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 AS21828 announce?
AS21828 announces 20.5K IPv4 addresses distributed across 3 routed CIDR prefixes. The network is registered in United States.
Who operates AS21828?
AS21828 is operated by Tulare County Office of Education. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.
What country is AS21828 registered in?
AS21828 is registered in United States. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
