---
title: "What is Reassigned number?"
url: "https://lookvalid.com/glossary/reassigned-number.md"
canonical_url: "https://lookvalid.com/glossary/reassigned-number"
last_updated: "2026-10-19"
type: "conceptual"
summary: "A reassigned number is a phone number that was disconnected and later given to a different person."
related: ["https://lookvalid.com/glossary/number-portability.md", "https://lookvalid.com/glossary/line-type.md", "https://lookvalid.com/glossary/hlr.md"]
---

# What is Reassigned number?

A reassigned number is a phone number that was disconnected and later given to a different person.

Contact lists go stale this way: the number you hold for a customer may now belong to a stranger. A message meant for your customer lands with someone else, and in the US the FCC runs a Reassigned Numbers Database so callers can check.

A numbering-plan check cannot see reassignment. It needs carrier or database records about when the number last changed hands.

## Related

- [What is Number portability?](https://lookvalid.com/glossary/number-portability.md)
- [What is Line type?](https://lookvalid.com/glossary/line-type.md)
- [What is HLR (Home Location Register)?](https://lookvalid.com/glossary/hlr.md)