# Check if a phone number or phone number 1k prefix exists in SafeList.

**GET /v1/SafeList/Numbers**

Check if a phone number or phone number 1k prefix exists in SafeList.


## Servers
- https://accounts.twilio.com: https://accounts.twilio.com ()


## Authentication methods
- Account sid auth token


## Parameters


### Query parameters
- **PhoneNumber** (string)
  The phone number or phone number 1k prefix to be fetched from SafeList. Phone numbers must be in [E.164 format](https://www.twilio.com/docs/glossary/what-e164).


## Responses
### 200
OK
#### Headers
- **Access-Control-Allow-Origin** (string)
  Specify the origin(s) allowed to access the resource
- **Access-Control-Allow-Methods** (string)
  Specify the HTTP methods allowed when accessing the resource
- **Access-Control-Allow-Headers** (string)
  Specify the headers allowed when accessing the resource
- **Access-Control-Allow-Credentials** (boolean)
  Indicates whether the browser should include credentials
- **Access-Control-Expose-Headers** (string)
  Headers exposed to the client

#### Body: application/json (object)
- **sid** (string | null)
  The unique string that we created to identify the SafeList resource.
- **phone_number** (string | null)
  The phone number or phone number 1k prefix in SafeList.


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