How to Migrate Phone Numbers in HighLevel

You just brought on a massive new client who is ready to scale. They have an established business, a recognized brand, and a phone number their customers have been dialing for a decade. You tell them you are moving them into your CRM to automate their follow-up, but there is a catch. You have to migrate their phone number.

Instantly, the nightmare begins. You spend hours bouncing between telecom support desks, carrier forms, and internal settings. A misconfigured transfer leaves the client’s phone line completely dead for three days. Their customers hear a busy signal. Leads bounce. The client is furious before you even launch the first campaign, and you are pulling your hair out playing IT support instead of acting like a high-level agency owner.

You cannot scale an agency if onboarding requires a degree in telecom engineering. HighLevel just streamlined the entire phone number migration process. You no longer need to wrestle with Twilio support tickets. HighLevel coordinates the migration end-to-end, so you can port numbers seamlessly and keep the revenue flowing. Let us get your client’s numbers moved the right way.

Part 1: Gather Your Migration Identifiers

Ready to streamline this? Here is exactly how to do it in 60 seconds:

Before you move anything, you need the right data. Stop guessing and grab these IDs first.

1. For US Numbers: You need the Twilio Account SID (the “gaining” SID if moving to Twilio, or the “losing” SID if moving away), the destination sub-account ID, and the exact phone numbers.
2. For International Numbers: You need the Regulatory Bundle SID, the Address SID, and the exact phone numbers (including the country code).

Part 2: Move Between LeadConnector and Twilio

If you are moving a number from LeadConnector (LC) to Twilio, Twilio to LC, or even LC to LC across two different agencies, the workflow is identical.

1. Gather the required IDs from Part 1.
2. Open a standard HighLevel Support ticket.
3. Provide the IDs, the phone numbers, and your preferred cutover window.
4. Sit back. HighLevel Support will coordinate the entire migration end-to-end and confirm with you the second the traffic is live and ready to test.

Part 3: Move Numbers Within the Same Agency

Moving a number between two LC sub-accounts inside your own agency is incredibly fast and does not require a support ticket.

1. Navigate to Settings and click on Phone Integration.
2. Locate and open the Move Numbers tool.
3. Pick your source number from the list.
4. Choose the destination sub-account and complete the transfer instantly.
5. Note: If the built-in tool fails due to a backend mismatch, simply contact HighLevel Support with the source and destination Location IDs so they can push it through.

Part 4: Port a Non-Twilio Phone Number

Bringing an existing number from an outside carrier (like Verizon, AT&T, or a legacy VoIP) into LeadConnector?

1. Gather the required phone numbers and any requested carrier paperwork (like a Letter of Authorization or recent bill).
2. Open a HighLevel Support ticket detailing your desired cutover window.
3. The HighLevel team will manage the complex porting process directly with the carriers and notify you the moment it is ready to test.

Migrating phone numbers seamlessly ensures your clients never miss a beat and your onboarding remains totally frictionless.

Frequently Asked Questions

Start Your HighLevel Free Trial

Browse all GoHighLevel guides · HighLevel Phone.