diff --git a/src/PhoneNumberField.php b/src/PhoneNumberField.php
index 01df135..131f9ed 100644
--- a/src/PhoneNumberField.php
+++ b/src/PhoneNumberField.php
@@ -32,6 +32,7 @@ class PhoneNumberField extends \acf_field
      */
     public $defaults = [
         'country' => 'us',
+        'placeholder' => '+1 555-555-5555',
     ];
 
     /**
@@ -80,9 +81,10 @@ public function render_field($field)
         }
 
         echo sprintf(
-            '<input type="tel" name="%s[number]" value="%s" />',
+            '<input type="tel" name="%s[number]" value="%s" placeholder="%s" />',
             $field['name'],
-            $field['value']['number']
+            $field['value']['number'],
+            $field['placeholder'] ?? $this->defaults['placeholder']
         );
 
         echo sprintf(
@@ -111,6 +113,14 @@ public function render_field_settings($field)
             'default_value' => $this->defaults['country'],
             'choices' => (new PhoneNumber())->getCountries()
         ]);
+
+        acf_render_field_setting($field, [
+            'label' => __('Placeholder', 'acf-phone-number'),
+            'instructions' => __('The placeholder text for the phone number.', 'acf-phone-number'),
+            'type' => 'text',
+            'name' => 'placeholder',
+            'default_value' => $this->defaults['placeholder'],
+        ]);
     }
 
     /**