public void setPhoneNumberPrefix(String phoneNumberPrefix) {
        this.phoneNumberPrefix = phoneNumberPrefix;
    }
<p>
The prefix of the phone number. If provided, it must contain <code>+</code> as part of the country code.
</p>

@param phoneNumberPrefix
       The prefix of the phone number. If provided, it must contain <code>+</code> as part of the country code.
aws-java-sdk-connect/src/main/java/com/amazonaws/services/connect/model/SearchAvailablePhoneNumbersRequest.java