from Hacker News

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

by deejaybog on 6/2/25, 5:50 PM with 3 comments

• by toomuchtodo on 6/2/25, 5:55 PM

  Vendors exist to get enriched data from phone numbers via API call. “Phone|mobile number intelligence” is the search query to use.

  (have used for anti fraud in finance)

• by deejaybog on 6/2/25, 5:50 PM

  I'm curious about the technical implementation behind Nextdoor's address verification process.

  "To verify your account, your phone plan’s billing address must match the address you used to join Nextdoor."

  Does anyone know how they actually accomplish this?