You can:
See the examples:
WhatsappApiFactory factory = WhatsappApiFactory.newInstance();
WhatsappBusinessManagementApi whatsappBusinessManagementApi = factory.newBusinessManagementApi(TestConstants.TOKEN);
var phoneNumbers = whatsappBusinessManagementApi.retrievePhoneNumbers(TestConstants.WABA_ID);
ObjectMapper mapper = new ObjectMapper();
System.out.println(mapper.writeValueAsString(phoneNumbers));
WhatsappApiFactory factory = WhatsappApiFactory.newInstance();
WhatsappBusinessManagementApi whatsappBusinessManagementApi = factory.newBusinessManagementApi(TestConstants.TOKEN);
var phoneNumber = whatsappBusinessManagementApi.retrievePhoneNumber(TestConstants.PHONE_NUMBER_ID);
ObjectMapper mapper = new ObjectMapper();
System.out.println(mapper.writeValueAsString(phoneNumber));
WhatsappApiFactory factory = WhatsappApiFactory.newInstance();
WhatsappBusinessManagementApi whatsappBusinessManagementApi = factory.newBusinessManagementApi(TestConstants.TOKEN);
var phoneNumber = whatsappBusinessManagementApi.retrievePhoneNumber(TestConstants.PHONE_NUMBER_ID, "name_status", "verified_name");
ObjectMapper mapper = new ObjectMapper();
System.out.println(mapper.writeValueAsString(phoneNumber));
See full examples here