diff --git a/app/client/cypress/e2e/Regression/ClientSide/Widgets/PhoneInput/PhoneInput_Part2_spec.ts b/app/client/cypress/e2e/Regression/ClientSide/Widgets/PhoneInput/PhoneInput_Part2_spec.ts
index 9eede0aa2b7..cbf6b2ecf1c 100644
--- a/app/client/cypress/e2e/Regression/ClientSide/Widgets/PhoneInput/PhoneInput_Part2_spec.ts
+++ b/app/client/cypress/e2e/Regression/ClientSide/Widgets/PhoneInput/PhoneInput_Part2_spec.ts
@@ -292,6 +292,9 @@ describe(
 
       agHelper.ClearNType(locators._input, "100");
       agHelper.ValidateToastMessage("Value Changed");
+      agHelper.WaitUntilToastDisappear("Value Changed");
+      agHelper.ClearNType(locators._input, "a");
+      cy.get(locators._toastMsg).should("not.exist");
 
       // onFocus
       propPane.SelectPlatformFunction("onFocus", "Show alert");
diff --git a/app/client/src/widgets/PhoneInputWidget/widget/index.tsx b/app/client/src/widgets/PhoneInputWidget/widget/index.tsx
index 6fc16f1570e..7b215fc4d87 100644
--- a/app/client/src/widgets/PhoneInputWidget/widget/index.tsx
+++ b/app/client/src/widgets/PhoneInputWidget/widget/index.tsx
@@ -411,13 +411,18 @@ class PhoneInputWidget extends BaseInputWidget<
       "value",
       parseIncompletePhoneNumber(formattedValue),
     );
-    this.props.updateWidgetMetaProperty("text", formattedValue, {
-      triggerPropertyName: "onTextChanged",
-      dynamicString: this.props.onTextChanged,
-      event: {
-        type: EventType.ON_TEXT_CHANGE,
-      },
-    });
+    // This regular expression validates that the input:
+    // - Does not start with a whitespace character
+    // - Contains only digits, spaces, parentheses, plus, and minus symbols
+    if (/^(?!\s)[\d\s()+-]*$/.test(value)) {
+      this.props.updateWidgetMetaProperty("text", formattedValue, {
+        triggerPropertyName: "onTextChanged",
+        dynamicString: this.props.onTextChanged,
+        event: {
+          type: EventType.ON_TEXT_CHANGE,
+        },
+      });
+    }
     if (!this.props.isDirty) {
       this.props.updateWidgetMetaProperty("isDirty", true);
     }