diff --git a/example/index.html b/example/index.html
index 1b36a1e35..0fe63d1f6 100644
--- a/example/index.html
+++ b/example/index.html
@@ -107,11 +107,12 @@ <h3>Validation callback</h3>
 import 'file?name=libphonenumber.js!./node_modules/react-intl-tel-input/dist/libphonenumber.js';
 import './node_modules/react-intl-tel-input/dist/main.css';
 
-const changeHandler = (status, value, countryData, number, id) => {
+const handler = (status, value, countryData, number, id) => {
   console.log(status, value, countryData, number, id);
 };
 
-ReactDOM.render(&lt;IntlTelInput onPhoneNumberChange={changeHandler}
+ReactDOM.render(&lt;IntlTelInput onPhoneNumberChange={handler}
+                              onPhoneNumberBlur={handler}
                               css={['intl-tel-input', 'form-control']}
                               utilsScript={'libphonenumber.js'} /&gt;, document.getElementById('content'));
 </code></pre>
@@ -243,7 +244,12 @@ <h2>Props</h2>
               <tr>
                 <th scope="row">onPhoneNumberChange</th>
                 <td><code>null</code></td>
-                <td>Validation callback function. It returns validation status, input box value and selected country data.</td>
+                <td>Optional validation callback function. It returns validation status, input box value and selected country data.</td>
+              </tr>
+              <tr>
+                <th scope="row">onPhoneNumberBlur</th>
+                <td><code>null</code></td>
+                <td>Optional validation callback function. It returns validation status, input box value and selected country data.</td>
               </tr>
             </tbody>
           </table>
diff --git a/src/containers/IntlTelInputApp.js b/src/containers/IntlTelInputApp.js
index 5aabb23b5..ee9d3f287 100644
--- a/src/containers/IntlTelInputApp.js
+++ b/src/containers/IntlTelInputApp.js
@@ -48,6 +48,7 @@ export default class IntlTelInputApp extends Component {
     // specify the path to the libphonenumber script to enable validation/formatting
     utilsScript: '',
     onPhoneNumberChange: null,
+    onPhoneNumberBlur: null,
     onSelectFlag: null,
     disabled: false,
   };
@@ -74,6 +75,7 @@ export default class IntlTelInputApp extends Component {
     preferredCountries: PropTypes.arrayOf(PropTypes.string),
     utilsScript: PropTypes.string,
     onPhoneNumberChange: PropTypes.func,
+    onPhoneNumberBlur: PropTypes.func,
     onSelectFlag: PropTypes.func,
     disabled: PropTypes.bool,
     placeholder: PropTypes.string,
@@ -778,6 +780,14 @@ export default class IntlTelInputApp extends Component {
 
   handleOnBlur() {
     this.removeEmptyDialCode();
+    if (typeof this.props.onPhoneNumberBlur === 'function') {
+      const value = this.state.value;
+      const isValid = this.isValidNumber(value);
+      const fullNumber = this.formatFullNumber(value);
+      this.props.onPhoneNumberBlur(
+        isValid, value, this.selectedCountryData,
+        fullNumber, this.getExtension());
+    }
   }
 
   bindDocumentClick() {
@@ -920,14 +930,18 @@ export default class IntlTelInputApp extends Component {
     return false;
   }
 
+  formatFullNumber(number) {
+    return window.intlTelInputUtils
+      ? this.getNumber(window.intlTelInputUtils.numberFormat.INTERNATIONAL)
+      : number;
+  }
+
   notifyPhoneNumberChange(newNumber) {
     if (typeof this.props.onPhoneNumberChange === 'function') {
-      const result = this.isValidNumber(newNumber);
-      const fullNumber = window.intlTelInputUtils ?
-        this.getNumber(window.intlTelInputUtils.numberFormat.INTERNATIONAL) :
-        newNumber;
+      const isValid = this.isValidNumber(newNumber);
+      const fullNumber = this.formatFullNumber(newNumber);
       this.props.onPhoneNumberChange(
-        result, newNumber, this.selectedCountryData,
+        isValid, newNumber, this.selectedCountryData,
         fullNumber, this.getExtension());
     }
   }
diff --git a/src/example.js b/src/example.js
index 667d535ec..a25782105 100644
--- a/src/example.js
+++ b/src/example.js
@@ -23,6 +23,12 @@ const lookup = (callback) => {
   };
 };
 
+function log(...args) {
+  /* eslint-disable */
+  console.log(args);
+  /* eslint-enable */
+}
+
 class DemoComponent extends React.Component {
   constructor(props) {
     super(props);
@@ -38,19 +44,22 @@ class DemoComponent extends React.Component {
   }
 
   changeHandler(name, isValid, value, countryData, number, ext) {
-    /* eslint-disable */
-    console.log(isValid, value, countryData, number, ext);
-    /* eslint-enable */
+    log(isValid, value, countryData, number, ext);
     this.setState({
       [name]: value,
     });
   }
 
+  blurHandler(isValid, value, countryData, number, ext) {
+    log(isValid, value, countryData, number, ext);
+  }
+
   render() {
     return (
       <div>
         <IntlTelInput
           onPhoneNumberChange={this.changePhone1}
+          onPhoneNumberBlur={this.blurHandler}
           defaultCountry={'auto'}
           value={this.state.phone1}
           geoIpLookup={lookup}
@@ -61,6 +70,7 @@ class DemoComponent extends React.Component {
 
         <IntlTelInput
           onPhoneNumberChange={this.changePhone2}
+          onPhoneNumberBlur={this.blurHandler}
           defaultCountry={'jp'}
           value={this.state.phone2}
           css={['intl-tel-input', 'form-control']}
diff --git a/src/index.html b/src/index.html
index 1b36a1e35..0fe63d1f6 100644
--- a/src/index.html
+++ b/src/index.html
@@ -107,11 +107,12 @@ <h3>Validation callback</h3>
 import 'file?name=libphonenumber.js!./node_modules/react-intl-tel-input/dist/libphonenumber.js';
 import './node_modules/react-intl-tel-input/dist/main.css';
 
-const changeHandler = (status, value, countryData, number, id) => {
+const handler = (status, value, countryData, number, id) => {
   console.log(status, value, countryData, number, id);
 };
 
-ReactDOM.render(&lt;IntlTelInput onPhoneNumberChange={changeHandler}
+ReactDOM.render(&lt;IntlTelInput onPhoneNumberChange={handler}
+                              onPhoneNumberBlur={handler}
                               css={['intl-tel-input', 'form-control']}
                               utilsScript={'libphonenumber.js'} /&gt;, document.getElementById('content'));
 </code></pre>
@@ -243,7 +244,12 @@ <h2>Props</h2>
               <tr>
                 <th scope="row">onPhoneNumberChange</th>
                 <td><code>null</code></td>
-                <td>Validation callback function. It returns validation status, input box value and selected country data.</td>
+                <td>Optional validation callback function. It returns validation status, input box value and selected country data.</td>
+              </tr>
+              <tr>
+                <th scope="row">onPhoneNumberBlur</th>
+                <td><code>null</code></td>
+                <td>Optional validation callback function. It returns validation status, input box value and selected country data.</td>
               </tr>
             </tbody>
           </table>
diff --git a/tests/TelInput-test.js b/tests/TelInput-test.js
index 1116b4825..8c7544a1e 100644
--- a/tests/TelInput-test.js
+++ b/tests/TelInput-test.js
@@ -312,6 +312,36 @@ describe('TelInput', () => {
     assert(parent.state.value === '');
   });
 
+  it('onPhoneNumberBlur', () => {
+    requests[0].respond(200,
+      { 'Content-Type': 'text/javascript' },
+      libphonenumberUtils);
+    window.eval(getScript().text);
+
+    let expected = '';
+    const onPhoneNumberBlur = (isValid, newNumber, countryData, fullNumber, ext) => {
+      expected = `${isValid},${newNumber},${countryData.iso2},${fullNumber},${ext}`;
+    };
+
+    const parent = ReactTestUtils.renderIntoDocument(
+      <IntlTelInput css={['intl-tel-input', 'form-control phoneNumber']}
+        fieldName={'telephone'}
+        defaultCountry={'tw'}
+        utilsScript={'../example/assets/libphonenumber.js'}
+        onPhoneNumberBlur={onPhoneNumberBlur}
+      />
+    );
+
+    const input = ReactTestUtils.findRenderedComponentWithType(
+      parent,
+      TelInput
+    );
+
+    ReactTestUtils.Simulate.change(findDOMNode(input), { target: { value: '+886911222333' } });
+    ReactTestUtils.Simulate.blur(findDOMNode(input));
+    assert(expected === 'true,+886911222333,tw,+886 911 222 333,null');
+  });
+
   it('has empty value and not nationalMode, not autoHideDialCode and not separateDialCode', () => {
     const parent = ReactTestUtils.renderIntoDocument(
       <IntlTelInput css={['intl-tel-input', 'form-control phoneNumber']}