---
title: Discovery App Scan Capabilities
slug: discovery-app-req-guide/discovery-app-scan-capabilities
createdAt: 2026-11-05T05:56:17.749Z
---

Each Discovery App is capable of simultaneously scanning subnets of four /24, two /23 or one /22. Scan times can vary based on the number and types of connected devices. Generally, a scan of a /24 subnet with the maximum number of 256 devices will take 20-40 minutes to complete. This means four /24 subnets can be simultaneously scanned in an average time of 30 minutes. Table 2 shows the estimated scan times for various amounts of /24 subnets and Discovery Apps.

Table 2: Discovery App Scan Capabilities

| **Number of Subnets** | **Number of IPs** | **Number of Discovery Apps** | **Hours to complete scan** |
| --------------------- | ----------------- | ---------------------------- | -------------------------- |
| 4                     | 1,024             | 1                            | 0.5                        |
| 25                    | 6,400             | 1                            | 3                          |
| 100                   | 25,600            | 1                            | 13                         |
| 200                   | 52,200            | 2                            | 13                         |
| 400                   | 102,400           | 4                            | 13                         |

A single Discovery App can easily scan over 20,000 IPs per day. If daily scans for each IP are not required, subnet scans can be configured to run on alternating days to increase the IP scanning capacity from a single DA. Otherwise, multiple DA’s may be required.