# Region list

> Query the list of supported regions for Issuing cardholder addresses.

```yaml
openapi: 3.1.0
info:
  title: Region list
  version: 1.0.0
  description: Query the list of supported regions for Issuing cardholder addresses.
paths:
  /api/v1/merchant/common/regionList:
    post:
      summary: Region list
      description: Query the list of supported regions for Issuing cardholder addresses.
      parameters:
        - name: ApiKey
          in: header
          required: true
          description: Issuing API key request header assigned by Onerway.
          schema:
            type: string
            description: Issuing API key request header assigned by Onerway.
      responses:
        "200":
          description: Success
          content:
            application/json:
              schema:
                type: object
                properties:
                  respCode:
                    type: string
                    description: Business response code. `20000` means success.
                  respMsg:
                    type: string
                    description: Response message.
                  data:
                    type: array
                    description: Supported region list.
                    items:
                      type: object
                      properties:
                        regionCode:
                          type: string
                          description: Region or country code, using ISO 3166-1 alpha-2.
                        regionName:
                          type: string
                          description: Region or country name.
                    x-onerway-value:
                      empty: true
                      when:
                        en: Returned as an empty array when no region is available.
                        zh: 无可用地区时返回空数组。
              examples:
                success:
                  summary: Success
                  value:
                    respCode: "20000"
                    respMsg: success
                    data:
                      - regionCode: CN
                        regionName: China
                      - regionCode: US
                        regionName: United States
                      - regionCode: HK
                        regionName: Hong Kong
```