How to Dynamically Select a Local Caller ID Based on Customer Number in Amazon Connect Outbound Campaigns?

Hi Everyone,

I'm currently running outbound voice campaigns using Amazon Connect, and I’d like to implement a solution where the caller ID number is selected dynamically based on the customer's phone number.

Scenario: We have multiple phone numbers claimed in our Amazon Connect instance — from different areas (e.g., +1, +14, +18, etc.). Our customers are from various states / areas, and we want to appear local when we call them.

For example: If a customer's number starts with +1 (USA), we want the system to automatically use one of our +1 numbers as the caller ID.

If the number starts with +18 (USA), then a number starts with the same code from our inventory should be used.

The goal is to increase the call pickup rate and maintain a local presence by displaying a familiar caller ID to each customer.

Question:

1. How can I configure Amazon Connect to dynamically select the appropriate caller ID number based on the customer's number in an outbound campaign?

2. Any sample architecture or best practices would be appreciated.

Thank you in advance for the guidance!

One important consideration: since the outbound number is selected when creating the campaign, and the call flow only executes after the call connects or ring to the customer, we can't use the flow to dynamically change the caller ID using lambda. The number associated with the campaign will always be shown to the customer, so modifying it within the flow has no effect on what the customer sees.