# Find an Address from a Mobile Number: Address API | FastKYC

> Retrieve address details linked to a mobile number, aggregated from telecom, utility and financial data sources, to prefill and verify customer addresses.

Source: https://www.fastkyc.com/apis/mobile-to-address/

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[Identity APIs](/apis/identity/)

# Mobile to Address API

Retrieve address details linked to a mobile number, aggregated from telecom, utility and financial data sources, to prefill and verify customer addresses.

[Book a Demo](/book-demo/)

Category

[Identity APIs](/apis/identity/)

Built for

-   [Fintech & Payments](/industries/fintech-payments/)
-   [Telecom](/industries/telecom/)
-   [Real Estate & Rentals](/industries/real-estate/)

## What the Mobile to Address API does

Mobile to Address returns the addresses associated with a mobile number, aggregating records from telecom, utility and financial sources.

Addresses are the hardest field to collect accurately and the easiest to falsify. Having independently sourced addresses to compare against a declared one turns an unverifiable claim into something you can actually assess.

## Where teams use the Mobile to Address API

1.  Corroborating a declared address during onboarding
    
2.  Pre-filling address fields to reduce drop-off
    
3.  Detecting address mismatches in fraud screening
    
4.  Supporting field verification decisions
    

## Frequently Asked Questions (FAQs)

How current are the addresses?

They reflect what the source records hold, which can lag a recent move. Multiple addresses often represent a genuine history.

Is this address proof?

It is corroboration, not proof. For formal KYC address proof you still need an accepted document.

What are the privacy obligations?

Address data is personal data. Collect explicit consent, state the purpose, and restrict internal access.

## Related APIs

-   [Mobile to PAN API Find the PAN linked to a mobile number and name, validated against trusted telecom and financial sources, so customers don't have to type their PAN.](/apis/mobile-to-pan/)
-   [Mobile to Name API Retrieve the registered full name for an Indian mobile number using telecom and banking-grade sources, to match a customer's name to their phone.](/apis/mobile-to-name/)
-   [DIN Verify API Retrieve detailed director information including personal details, DIN status and linked entities, using PAN, DIN or KID.](/apis/din-verify/)
-   [Contact Details by GST API Fetch the mobile number and email address registered against a GST number, giving you verified contact details for a business you are onboarding.](/apis/gst-to-contact-details/)

## Start verifying with the Mobile to Address API

Book a walkthrough and we will show the call, the response and how it fits your onboarding flow.

[Book a Demo](/book-demo/) [Browse All APIs](/apis/)

-   One API key for every check
-   Verified against official Indian records
-   Built for onboarding at scale