Once you have tracking numbers, you manage them from Tracking > Numbers. This page covers every change to a number you already own, from linking it to a call flow to deleting it. To move a number out of Nimbata, see Port a number out.

Assign a call flow

After setting up your call flows, you need to link them to your tracking numbers so that anyone who calls is routed to the correct destination.

  1. Go to Tracking > Numbers

    Inside the Nimbata app, go to TrackingNumbers.

  2. 1Open the call flow list

    Click the Select a call flow field. This expands the list of available call flows.

  3. 2Pick the call flow

    Select the call flow you want to assign to the tracking number. The list ends with Create Call Flow, which opens the builder for a new one.

    Tracking Numbers

    Phone numbers that capture incoming calls and attribute them to a source.

    Search
    Group bySourceNone
    NameNumbersCall FlowStatus
    Google Ads· 1 number
    Emergency Repairs(415) 555-0142US · LocalSelect a call flow1Main line2After hoursCreate Call FlowNo call flow
    Click Select a call flow (1) and pick a call flow (2). The number becomes Active.

Assign the same call flow to multiple numbers at once

  1. 1Select the numbers

    Tick the checkboxes next to all the tracking numbers you want to link.

  2. 2Click the shuffle icon

    A bar with the number of selected rows appears next to the search box. Click its shuffle icon (Assign call flow to multiple tracking numbers). It works once you select two or more numbers, all of them active: remove pending numbers from your selection first.

    Search2 selected2
    Group bySourceNone
    NameNumbersCall Flow
    All online sources Pool· 2 numbers
    1Tracking Num Pool(415) 555-0131US · LocalSelect a call flow
    Tracking Num Pool(415) 555-0132US · LocalSelect a call flow
    Tick the numbers (1), then click the shuffle icon (2) in the selection bar.

  3. 1Pick the call flow

    Select the call flow you want to apply and click Change. To take the numbers off their call flows instead, pick Remove Call Flows.

    Pick the call flow, then click Change (1).

Your tracking numbers are now ready to use.

Detailed guide: Build a call flow

Change the number format

The appearance (format) of your tracking numbers in Nimbata should match how phone numbers are written on your website. Whether the DNI script finds the number on your page depends on your swap target, not on this setting: see How swap target matching works.

In Nimbata, you can display tracking numbers in one of the following formats, shown with +1 as an example country code:

If text-based swapping isn’t reliable on your site (e.g. numbers are rendered dynamically), use Span Tag swapping for precise replacement.

  1. Go to Tracking > Numbers

    Inside the Nimbata app, navigate to TrackingNumbers.

  2. 1Change the format

    For a single number:

    • Click the number you wish to reformat.
    • Change the format to match your website.
    • Click the green check icon to save.

    For multiple numbers at once:

    • Tick the checkboxes next to all numbers you want to edit.
    • Click 123 / Modify number appearance.
    • Select your preferred format under Suggested options, or type it, and click Apply.
    Pick or type the format your website uses, then click Apply (1).

Tip

Using the buttons next to ‘Modify number appearance’ you can also bulk edit names, assign call flows, move numbers to different projects, and change their source.

Move a number to another pool

Adding your tracking numbers to the correct pool is the first step when you want to track your and your clients’ efforts properly. But mistakes do happen, and in Nimbata they are reversible: you can reassign a tracking number to the right pool.

  1. 1Open your tracking numbers overview

    • Log into Nimbata.
    • Go to TrackingNumbers.
    • Locate the tracking number(s) that were accidentally created under a different pool. This example uses the Impression pool.

    Tracking Numbers

    Phone numbers that capture incoming calls and attribute them to a source.

    Search
    Group bySourceNone
    NameNumbersSourceCall Flow
    Google Ads· 2 numbers
    Emergency Repairs(415) 555-0142US · LocalGoogle AdsMain line
    Emergency Repairs(415) 555-0145US · LocalGoogle AdsMain line
    Impression· 1 number
    1Emergency Repairs(415) 555-0147US · LocalImpressionMain line
    The number in the Impression pool (1) should be in the Google Ads pool.

  2. 1Remove any associated call flows

    Click the X in the number’s call flow field, under the Call Flow column. This removes the call flow that’s associated with the tracking number(s) you wish to move.

  3. 2Change the source of the number(s)

    • Click the selected source under the Source column (Impression in this example).
    • Select the same Source as the tracking numbers in the pool you wish to move your tracking number(s) to (Google Ads in this example).
    NumbersSourceCall Flow
    (415) 555-0147US · LocalImpressionDirectGoogle Ads2ImpressionOrganic SearchCreate NewMain line1
    Clear the call flow (1), then pick the source of the pool the number should join (2).

  4. 1Reassign the call flow

    Finally, reassign your tracking number(s) to the appropriate call flow(s).

    NumbersCall FlowStatus
    Google Ads· 3 numbers
    (415) 555-0142US · LocalMain lineActive
    (415) 555-0145US · LocalMain lineActive
    (415) 555-0147US · LocalSelect a call flow1No call flow
    The number now sits with the Google Ads numbers. Pick its call flow again (1).

Your tracking number(s) are now under the same pool.

Move a number to another project

Warning

Tracking numbers can only be moved to a different project once no call flow is assigned to them. If the number has a call flow, follow all the steps below. If it has none, skip the step that releases the call flow.

  1. 1Go to Tracking > Numbers

    Inside the Nimbata app, head over to TrackingNumbers and expand the group that contains the number you want to move.

  2. 2Release the call flow from the tracking number

    Select the number, then click the x icon next to the call flow name on the far right.

    NameNumbersCall Flow
    1All online sources Pool· 2 numbers
    Tracking Num Pool(415) 555-0131US · LocalMain line2
    Tracking Num Pool(415) 555-0132US · LocalMain line
    Expand the group (1), then clear the number's call flow with its x (2).

  3. 1Move the tracking number

    With the number still selected, click the Move to different project icon (now highlighted in blue) in the selection bar. On the pop-up, select the destination project and click Move.

    Search1 selected1
    Group bySourceNone
    NameNumbersCall Flow
    All online sources Pool· 2 numbers
    Tracking Num Pool(415) 555-0131US · LocalSelect a call flow
    With the number selected and its call flow cleared, click Move to different project (1).

You receive a confirmation message once the number has been successfully moved.

Delete a number

Tracking numbers must be removed from any active call flow before they can be deleted. Follow both steps below in order.

Before you delete: the tracking number lifecycle

When you delete a tracking number, the following happens:

  • The number is released back to the carrier and becomes available to other users. It cannot be recovered or re-assigned to your account.
  • All historical call data attributed to that number remains in your account. Deleting the number does not delete its call history.
  • Any active call flow that included the number must be updated before deletion. Calls to a number with no assigned flow will not route.
  • If the number was part of a DNI pool, the pool shrinks, which may affect attribution accuracy. Consider replacing the number rather than removing it.
  • Workflows triggered by calls to that number will continue to exist but will no longer fire on it.

If you want to temporarily stop using a number without losing it, removing it from its call flow (without deleting the number itself) is a safer option. You keep paying for the number while it stays in your account.

Delete the tracking number

  1. Remove the tracking number from its call flow

    Go to TrackingNumbers, select the number you want to delete, and click the x icon next to its call flow name on the far right.

    A call flow that a tracking number uses shows In use under Call handlingCall Flows, and you can’t delete it until it’s removed from its numbers. Once it’s removed, you can also delete the call flow if it’s no longer needed.

    Call Flows

    How calls are routed, recorded, and handled before they reach a destination.

    Flow NameStatusLast updated
    Main lineIn use12 days ago
    After hoursNot in use3 weeks ago
    A call flow your numbers use shows In use (1). Once no number uses it, it shows Not in use.

    Note

    Once no call flows are assigned to the tracking number, you can proceed with deletion.

  2. Delete the tracking number

    • Go to TrackingNumbers and locate the tracking number.
    • Click the x icon next to the call flow name on the far right to release any remaining assignment.
    • Select the number, click the bin icon (Delete tracking number) in the selection bar, then click Remove on the confirmation message.

You receive a confirmation notification once the tracking number has been successfully deleted.