AS203939
Mosaic Data Services, Inc.
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 →
Network profile
Source: PeeringDB →Present at 2 internet exchanges: DACS-IX East: Main, Nell-IX NoVA
Top CIDR ranges
| CIDR | IPs | PTR Density | Organization | Country | State | City |
|---|---|---|---|---|---|---|
| 185.125.184.0/22 | 1.0K |
86.0%
|
Mosaic Data Services, Inc. | US | Maryland | Beltsville |
| 185.204.14.0/23 | 512 |
97.7%
|
Mosaic Data Services, Inc. | US | Maryland | Beltsville |
| 23.136.116.0/24 | 256 |
99.2%
|
Mosaic Data Services, Inc. | US | — | — |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS203939 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 |
|---|---|---|
| 23.136.116.0/24 | 15,356 | 2026-07-31 04:43:56 |
| 185.204.14.0/23 | 7,787 | 2026-07-31 04:43:56 |
| 185.125.184.0/22 | 7,772 | 2026-07-31 04:43:56 |
Frequently Asked Questions
What is AS203939?
AS203939 is an Autonomous System Number assigned to Mosaic Data Services, Inc.. 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 AS203939 announce?
AS203939 announces 1.8K IPv4 addresses distributed across 3 routed CIDR prefixes. The network is registered in United States.
Who operates AS203939?
AS203939 is operated by Mosaic Data Services, Inc.. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.
What country is AS203939 registered in?
AS203939 is registered in United States. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
