# Portability checks

Portability checks verify whether numbers can be ported to DIDWW before a porting request is created. Use them when you
need to confirm portability first, then start a porting request from eligible numbers after review.

## How portability checks work

A portability check starts with a list of numbers. DIDWW reviews the numbers and updates the check status. After review,
numbers can be marked as portable, not portable, or not recognized.

When a reviewed portability check includes portable numbers, you can start the porting process directly from that check
instead of entering the same numbers again in a new request.

```
        ---
config:
  layout: dagre
---
flowchart LR
    A1(("Create New<br>Portability Check")) --> B1["New"]
    B1 --> C1(("&nbsp; &nbsp; Review &nbsp; &nbsp; <br> &nbsp; &nbsp; Started &nbsp; &nbsp; "))
    C1 --> D1["Under Review"]
    D1 --> E1(("&nbsp; Reviewed &nbsp;"))
    E1 --> F1["Reviewed"]
    F1 --> G1(("Start Port In<br>For Portable DIDs"))
    F1 -.-> I1(("Delete<br>Portability Check"))
    G1 --> H1(("Create New<br>Porting Request"))
    B1 -.-> I1

     A1:::customerAction
     B1:::status
     C1:::staffAction
     D1:::status
     E1:::staffAction
     F1:::reviewComplete
     G1:::customerAction
     I1:::customerAction
     H1:::customerAction
    classDef customerAction stroke:#38bdf8,fill:#e0f2fe,stroke-width:2px
    classDef status stroke:#fb923c,fill:#fee2e2,stroke-width:2px
    classDef staffAction stroke:#facc15,fill:#fef3c7,stroke-width:2px
    classDef reviewComplete stroke:#2dd4bf,fill:#ccfbf1,stroke-width:2px
```

## How-to guides

**Create portability check**

Enter numbers and create a portability check.

[Create portability check](create-portability-check.html)

**Start port in from portability check**

Start a porting request from reviewed portable numbers.

[Start port in from portability check](start-port-in-from-portability-check.html)

**Delete portability check**

Delete a portability check when it is no longer needed.

[Delete portability check](delete-portability-check.html)

## Related resources

**Portability check reference**

Look up portability check statuses, filters, and table fields.

[Portability check reference](portability-check-reference.html)

**Create porting request**

Create a porting request manually.

[Create porting request](../porting-requests/create-porting-request.html)

**Number porting**

Review porting requirements and timing before creating a request.

[Number porting](../index.html)

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