Ask HN: How does Nextdoor verify phone billing address matches home address?

Vendors exist to get enriched data from phone numbers via API call. “Phone|mobile number intelligence” is the search query to use.<p>(have used for anti fraud in finance)

I&#x27;m curious about the technical implementation behind Nextdoor&#x27;s address verification process.<p>&quot;To verify your account, your phone plan’s billing address must match the address you used to join Nextdoor.&quot;<p>Does anyone know how they actually accomplish this?