Local Presence

Auto-select a caller ID matching the recipient’s area code to improve answer rates.

Local presence automatically selects a caller ID that matches the recipient’s area code. People are significantly more likely to answer calls from local numbers.

How it works

1. You dial a number (e.g. [phone])
2. The system extracts the area code from the E.164 format (512)
3. It searches your provisioned phone numbers for one with a matching area code
4. If found, that number is used as the caller ID for this call
5. If no exact match, your manually selected caller ID is used as fallback

The matching logic lives in useCallerIdSelection and runs automatically whenever the selected contact changes.

Enabling local presence

On the home screen: check the Prefer local presence calling checkbox below the caller ID dropdown.

In settings: go to Settings → Dialer and toggle Enable local presence. The settings page describes it as: “Automatically select the closest matching caller ID.”

When enabled, the caller ID dropdown still shows your selected number, but the system overrides it at dial time with the best local match.

Preview tool

The settings page includes a Preview Caller ID tool:

1. Go to Settings → Dialer
2. Scroll to the Local Presence section
3. Enter a phone number in the preview field
4. Click Preview
5. The system shows which caller ID would be selected, and whether it’s an exact area code match

This calls GET /v1/local-presence/preview?phoneNumber=X on the backend.

Requirements

• Multiple phone numbers provisioned in your Twilio account with different area codes
• The more area codes you cover, the better your matching rate

If you only have one phone number, local presence has nothing to match against. It will always use your single number.

Best practices

Practice	Why
Cover your target markets	If you call into Texas, provision numbers with 214, 512, 713, 817, 210 area codes
Don’t over-provision	Twilio charges per number per month. Cover your top 10-15 area codes, not every code in the country
Monitor answer rates	Compare answer rates with and without local presence in your analytics dashboard
Stay compliant	Local presence is legal in the US — Consuelo only uses numbers you actually own, not spoofed numbers

Local presence + parallel dialing

When parallel dialing is active with local presence enabled, each call in the batch can use a different caller ID based on the recipient’s area code. Contact A in Austin sees a 512 number, Contact B in Houston sees a 713 number — all in the same batch.

Next steps

• Configure Caller IDs — provision numbers for local presence coverage
• Caller ID — manage your outbound numbers