Tracking numbers are bought and released through trackers, which makes it easy to lose sight of how many you actually hold. The Phone Numbers page is the single list of every number in a company — what it's for, when you got it, and whether it's still costing you money.

### Finding the Page

![](https://d2k1yc19c4o170.cloudfront.net/help-assets/docs/company-numbers.png)

Go to **Settings → Phone Numbers** inside the company.

### What Each Column Tells You

* **Number** — the tracking number itself.
* **Tracker** — which tracker owns it. A number pool has several numbers against one tracker; a campaign or offline tracker normally has one.
* **Purchase Date** — when the number was added to your account.
* **Release Date** — when it was released, or a dash if it's still active.
* **Status** — a tick for active. Released numbers stay listed with their release date, so the history doesn't disappear.
* **Manage** — settings for the tracker the number belongs to.

### Why This Page Is Worth Checking

**Reconciling your bill.** Numbers are the recurring cost in call tracking. If a usage total looks higher than expected, this page shows you exactly which numbers were live and which tracker to blame. See [Account Usage](https://help.calltracker.io/hc/ct/articles/account-usage-tracking-overview).

**Finding numbers you have forgotten.** A campaign that ended six months ago keeps its number, and keeps billing, until the tracker is released. Scanning for trackers you no longer recognise is the fastest way to find that.

**Checking pool size against reality.** A number pool's numbers all appear here, so you can see at a glance how many a pool is holding.

### Searching

Use the search box to find a number or filter by tracker name — handy when a customer quotes a number back to you and you need to know which campaign it belongs to.

### Adding and Removing Numbers

You don't buy numbers here. **Setup a Tracking Number** starts the [tracker setup wizard](https://help.calltracker.io/hc/ct/articles/setting-up-your-first-tracker), because every number belongs to a tracker.

Removing one works the same way in reverse: release the tracker and its numbers go with it. See [Releasing a Tracker](https://help.calltracker.io/hc/ct/articles/releasing-a-tracker).

> **Note** Released numbers cannot be recovered — they return to the carrier and may be reassigned. Check this page before releasing anything that's printed on materials still in circulation.