AS18964
Adventist Health System Sunbelt Healthcare Corporation
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 |
|---|---|---|---|---|---|---|
| 204.139.64.0/18 | 16.4K |
0.0%
|
Adventist Health System Sunbelt Healthcare Corporation | US | Florida | Orlando |
| 204.156.96.0/20 | 4.1K |
0.0%
|
Adventist Health System Sunbelt Healthcare Corporation | US | — | — |
| 204.156.120.0/24 | 256 |
0.0%
|
Adventist Health System Sunbelt Healthcare Corporation | US | — | — |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS18964 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 |
|---|---|---|
| 204.139.87.0/24 | 9,757 | 2026-07-29 21:01:18 |
| 204.156.96.0/20 | 9,741 | 2026-07-29 21:01:18 |
| 204.139.67.0/24 | 9,737 | 2026-07-29 21:01:18 |
| 204.139.64.0/18 | 9,725 | 2026-07-29 21:01:18 |
| 204.139.84.0/24 | 9,714 | 2026-07-29 21:25:44 |
| 204.139.88.0/24 | 9,676 | 2026-07-29 21:22:46 |
| 204.139.85.0/24 | 9,663 | 2026-07-29 21:26:22 |
| 204.156.120.0/24 | 9,449 | 2026-07-29 21:01:18 |
| 204.139.64.0/24 | 9,362 | 2026-07-29 21:01:18 |
| 204.139.66.0/24 | 9,349 | 2026-07-29 21:01:18 |
| 204.139.101.0/24 | 3,771 | 2026-07-29 20:28:14 |
| 204.139.96.0/24 | 3,742 | 2026-07-29 21:01:39 |
| 204.139.102.0/24 | 3,434 | 2026-07-29 20:28:14 |
| 204.139.112.0/24 | 667 | 2026-07-29 20:28:48 |
Frequently Asked Questions
What is AS18964?
AS18964 is an Autonomous System Number assigned to Adventist Health System Sunbelt Healthcare Corporation. 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 AS18964 announce?
AS18964 announces 20.7K IPv4 addresses distributed across 3 routed CIDR prefixes. The network is registered in United States.
Who operates AS18964?
AS18964 is operated by Adventist Health System Sunbelt Healthcare Corporation. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.
What country is AS18964 registered in?
AS18964 is registered in United States. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
