# Payflow Gateway Country Codes (/api/nvp-soap/payflow/integration-guide/reference/country-codes)



The Payflow API uses the International Standards Organization (ISO) 3166-1 numeric country codes in the following fields: `BILLTOCOUNTRY` and `SHIPTOCOUNTRY`. For a complete list of the current officially assigned ISO 3166-1 3-digit numeric country codes, Refer to [ISO 3166-1 numeric](https://en.wikipedia.org/wiki/ISO_3166-1_numeric#Current_codes)

> **Note:** **Important:** If PayPal is your acquirer, refer instead to the [Countries and Regions Supported by PayPal](/api/nvp-soap/payflow/integration-guide/submit-transactions/#countries-and-regions-supported-by-paypal).