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# proximityUUID

The unique ID of the beacons you’re targeting.

```
var proximityUUID: UUID { get }
```

## Discussion

Typically, the UUID is unique to your company and is the same for all of the beacons that you install. Use the [`major`](/documentation/CoreLocation/CLBeaconRegion/major) and [`minor`](/documentation/CoreLocation/CLBeaconRegion/minor) values to differentiate the beacons in your installation.

---

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