diff --git a/packages/core/src/app/address/AddressForm.test.tsx b/packages/core/src/app/address/AddressForm.test.tsx
index 67c2075d3e..669410757b 100644
--- a/packages/core/src/app/address/AddressForm.test.tsx
+++ b/packages/core/src/app/address/AddressForm.test.tsx
@@ -153,34 +153,39 @@ describe('AddressForm Component', () => {
         expect(onChange).toHaveBeenCalledWith(fieldId, fieldValue);
     });
 
-    describe('new phone number validation experiment', () => {
+    describe('phone number validation setting', () => {
         const phoneFormFieldMock = {
             fieldType: 'text',
             id: 'phone',
             name: 'phone',
         } as FormField;
 
-        const getConfigMockWithPhoneExperimentTrue = (
-            providerWithCustomCheckout: string | null = null,
-        ) => {
+        const getConfigMockWithPhoneValidation = (isPhoneNumberValidationEnabled: boolean) => {
             const config = getStoreConfig();
 
             return {
                 ...config,
                 checkoutSettings: {
                     ...config.checkoutSettings,
-                    features: {
-                        ...config.checkoutSettings.features,
-                        'CHECKOUT-9019.use_new_phone_number_validation': true,
-                    },
-                    providerWithCustomCheckout,
+                    isPhoneNumberValidationEnabled,
                 },
             };
         };
 
-        it('renders legacy phone field when PayPal Fastlane powers custom checkout', () => {
+        it('renders new phone number field when isPhoneNumberValidationEnabled is true', () => {
             jest.spyOn(checkoutService.getState().data, 'getConfig').mockReturnValue(
-                getConfigMockWithPhoneExperimentTrue('bigcommerce_payments_fastlane'),
+                getConfigMockWithPhoneValidation(true),
+            );
+
+            renderAddressFormComponent({ formFields: [...formFields, phoneFormFieldMock] });
+
+            expect(screen.getByTestId('intl-tel-input-mock')).toBeInTheDocument();
+            expect(screen.queryByTestId('phoneInput-text')).not.toBeInTheDocument();
+        });
+
+        it('renders legacy phone field when isPhoneNumberValidationEnabled is false', () => {
+            jest.spyOn(checkoutService.getState().data, 'getConfig').mockReturnValue(
+                getConfigMockWithPhoneValidation(false),
             );
 
             renderAddressFormComponent({ formFields: [...formFields, phoneFormFieldMock] });
@@ -189,15 +194,15 @@ describe('AddressForm Component', () => {
             expect(screen.getByTestId('phoneInput-text')).toBeInTheDocument();
         });
 
-        it('renders new phone number field when custom checkout provider is not PayPal Fastlane', () => {
+        it('renders legacy phone field when isPhoneNumberValidationEnabled is missing from config', () => {
             jest.spyOn(checkoutService.getState().data, 'getConfig').mockReturnValue(
-                getConfigMockWithPhoneExperimentTrue('100%_definitely_not_fastlane'),
+                getStoreConfig(),
             );
 
             renderAddressFormComponent({ formFields: [...formFields, phoneFormFieldMock] });
 
-            expect(screen.getByTestId('intl-tel-input-mock')).toBeInTheDocument();
-            expect(screen.queryByTestId('phoneInput-text')).not.toBeInTheDocument();
+            expect(screen.queryByTestId('intl-tel-input-mock')).not.toBeInTheDocument();
+            expect(screen.getByTestId('phoneInput-text')).toBeInTheDocument();
         });
     });
 
diff --git a/packages/core/src/app/address/AddressForm.tsx b/packages/core/src/app/address/AddressForm.tsx
index 60870b2234..29f18a0693 100644
--- a/packages/core/src/app/address/AddressForm.tsx
+++ b/packages/core/src/app/address/AddressForm.tsx
@@ -9,7 +9,6 @@ import {
     useThemeContext,
 } from '@bigcommerce/checkout/contexts';
 import { TranslatedString } from '@bigcommerce/checkout/locale';
-import { isPayPalFastlaneMethod } from '@bigcommerce/checkout/paypal-fastlane-integration';
 import {
     type AutocompleteItem,
     CheckboxFormField,
@@ -20,7 +19,6 @@ import {
 import { isExperimentEnabled } from '@bigcommerce/checkout/utility';
 
 import { EMPTY_ARRAY, isFloatingLabelEnabled } from '../common/utility';
-import getProviderWithCustomCheckout from '../payment/getProviderWithCustomCheckout';
 
 import {
     type AddressFormProps,
@@ -67,17 +65,8 @@ const AddressForm: React.FC<AddressFormProps> = ({
     const isFloatingLabelEnabledValue = config
         ? isFloatingLabelEnabled(config.checkoutSettings)
         : false;
-    const isPayPalFastlaneEnabled = isPayPalFastlaneMethod(
-        getProviderWithCustomCheckout(config?.checkoutSettings.providerWithCustomCheckout),
-    );
-    // PayPal Fastlane stores keep the legacy phone input for now, due to incident
-    const isNewPhoneValidationExperimentEnabled =
-        !isPayPalFastlaneEnabled &&
-        isExperimentEnabled(
-            config?.checkoutSettings,
-            'CHECKOUT-9019.use_new_phone_number_validation',
-            false,
-        );
+    const isPhoneNumberValidationEnabled =
+        config?.checkoutSettings.isPhoneNumberValidationEnabled ?? false;
     const isNewGooglePlacesApiEnabled = isExperimentEnabled(
         config?.checkoutSettings,
         'CHECKOUT-10026.new_google_places_api',
@@ -236,9 +225,7 @@ const AddressForm: React.FC<AddressFormProps> = ({
                                 inputId={getAddressFormFieldInputId(addressFieldName)}
                                 // stateOrProvince can sometimes be a dropdown or input, so relying on id is not sufficient
                                 isFloatingLabelEnabled={isFloatingLabelEnabledValue}
-                                isNewPhoneValidationExperimentEnabled={
-                                    isNewPhoneValidationExperimentEnabled
-                                }
+                                isPhoneNumberValidationEnabled={isPhoneNumberValidationEnabled}
                                 key={`${field.id}-${field.name}`}
                                 label={
                                     field.custom || isExtraField(field) ? (
diff --git a/packages/ui/src/form/DynamicFormField/DynamicFormField.test.tsx b/packages/ui/src/form/DynamicFormField/DynamicFormField.test.tsx
index e1ebceb0c6..1504708778 100644
--- a/packages/ui/src/form/DynamicFormField/DynamicFormField.test.tsx
+++ b/packages/ui/src/form/DynamicFormField/DynamicFormField.test.tsx
@@ -158,7 +158,7 @@ describe('DynamicFormField Component', () => {
         ).toBeInTheDocument();
     });
 
-    describe('phone validation with isNewPhoneValidationExperimentEnabled', () => {
+    describe('phone validation with isPhoneNumberValidationEnabled', () => {
         // Phone field: fieldType 'text' + name containing 'phone' resolves to TELEPHONE internally
         const phoneFieldMock: FormFieldType = {
             custom: false,
@@ -187,7 +187,7 @@ describe('DynamicFormField Component', () => {
 
         const renderMockFormField = (overrides: {
             field: FormFieldType;
-            isNewPhoneValidationExperimentEnabled: boolean;
+            isPhoneNumberValidationEnabled: boolean;
             placeholder?: string;
         }) =>
             render(
@@ -197,8 +197,8 @@ describe('DynamicFormField Component', () => {
                             <FormProvider initialIsSubmitted>
                                 <DynamicFormField
                                     field={overrides.field}
-                                    isNewPhoneValidationExperimentEnabled={
-                                        overrides.isNewPhoneValidationExperimentEnabled
+                                    isPhoneNumberValidationEnabled={
+                                        overrides.isPhoneNumberValidationEnabled
                                     }
                                     placeholder={overrides.placeholder}
                                 />
@@ -217,13 +217,13 @@ describe('DynamicFormField Component', () => {
             mockSetCountry.mockClear();
         });
 
-        it('shows a validation error when the phone number is invalid and the experiment is enabled', async () => {
+        it('shows a validation error when the phone number is invalid and the setting is enabled', async () => {
             mockGetSelectedCountryData.mockReturnValue({ iso2: 'us' });
             mockIsValidNumber.mockReturnValue(false);
 
             renderMockFormField({
                 field: { ...phoneFieldMock, required: true },
-                isNewPhoneValidationExperimentEnabled: true,
+                isPhoneNumberValidationEnabled: true,
             });
 
             fireEvent.change(screen.getByTestId('phone-text'), {
@@ -242,7 +242,7 @@ describe('DynamicFormField Component', () => {
 
             renderMockFormField({
                 field: { ...phoneFieldMock, required: true },
-                isNewPhoneValidationExperimentEnabled: true,
+                isPhoneNumberValidationEnabled: true,
             });
 
             fireEvent.change(screen.getByTestId('phone-text'), {
@@ -261,7 +261,7 @@ describe('DynamicFormField Component', () => {
 
             renderMockFormField({
                 field: phoneFieldMock,
-                isNewPhoneValidationExperimentEnabled: true,
+                isPhoneNumberValidationEnabled: true,
             });
 
             // Leave value empty, submit directly
@@ -272,15 +272,15 @@ describe('DynamicFormField Component', () => {
             });
         });
 
-        it('does not validate phone when the experiment flag is disabled', async () => {
+        it('does not validate phone when the setting is disabled', async () => {
             mockIsValidNumber.mockReturnValue(false);
 
             renderMockFormField({
                 field: phoneFieldMock,
-                isNewPhoneValidationExperimentEnabled: false,
+                isPhoneNumberValidationEnabled: false,
             });
 
-            // Experiment off: IntlTelInput is not rendered, regular tel input is used instead
+            // Setting off: IntlTelInput is not rendered, regular tel input is used instead
             fireEvent.change(screen.getByRole('textbox'), { target: { value: '123' } });
             await userEvent.click(screen.getByText('Submit'));
 
@@ -289,61 +289,58 @@ describe('DynamicFormField Component', () => {
             });
         });
 
-        it('renders the legacy phone input when the field has a max length, even when the experiment is enabled', async () => {
+        it('renders the validated phone input when the field has a max length', async () => {
+            mockGetSelectedCountryData.mockReturnValue({ iso2: 'us' });
             mockIsValidNumber.mockReturnValue(false);
 
             const { container } = renderMockFormField({
                 field: { ...phoneFieldMock, maxLength: 10 },
-                isNewPhoneValidationExperimentEnabled: true,
+                isPhoneNumberValidationEnabled: true,
             });
 
             const input = screen.getByTestId('phone-text');
 
-            expect(input).toHaveAttribute('type', 'tel');
             expect(input).toHaveAttribute('maxlength', '10');
             // eslint-disable-next-line testing-library/no-container, testing-library/no-node-access
-            expect(container.querySelector('.iti-wrapper')).not.toBeInTheDocument();
+            expect(container.querySelector('.iti-wrapper')).toBeInTheDocument();
 
-            // The legacy input does not apply IntlTelInput phone validation
             fireEvent.change(input, { target: { value: '123' } });
             await userEvent.click(screen.getByText('Submit'));
 
             await waitFor(() => {
-                expect(screen.queryByRole('alert')).not.toBeInTheDocument();
+                expect(screen.getByRole('alert')).toBeInTheDocument();
             });
         });
 
-        it('renders the legacy phone input when the field has a placeholder, even when the experiment is enabled', async () => {
+        it('renders the validated phone input when the field has a placeholder', async () => {
+            mockGetSelectedCountryData.mockReturnValue({ iso2: 'us' });
             mockIsValidNumber.mockReturnValue(false);
 
             const { container } = renderMockFormField({
                 field: { ...phoneFieldMock, default: '1231232' },
-                isNewPhoneValidationExperimentEnabled: true,
+                isPhoneNumberValidationEnabled: true,
                 placeholder: '1231232',
             });
 
             const input = screen.getByTestId('phone-text');
 
-            expect(input).toHaveAttribute('type', 'tel');
-            expect(input).toHaveAttribute('placeholder', '1231232');
             // eslint-disable-next-line testing-library/no-container, testing-library/no-node-access
-            expect(container.querySelector('.iti-wrapper')).not.toBeInTheDocument();
+            expect(container.querySelector('.iti-wrapper')).toBeInTheDocument();
 
-            // The legacy input does not apply IntlTelInput phone validation
             fireEvent.change(input, { target: { value: '123' } });
             await userEvent.click(screen.getByText('Submit'));
 
             await waitFor(() => {
-                expect(screen.queryByRole('alert')).not.toBeInTheDocument();
+                expect(screen.getByRole('alert')).toBeInTheDocument();
             });
         });
 
-        it('does not validate phone for non-telephone fields even when experiment is enabled', async () => {
+        it('does not validate phone for non-telephone fields even when the setting is enabled', async () => {
             mockIsValidNumber.mockReturnValue(false);
 
             renderMockFormField({
                 field: nonPhoneFieldMock,
-                isNewPhoneValidationExperimentEnabled: true,
+                isPhoneNumberValidationEnabled: true,
             });
 
             fireEvent.change(screen.getByRole('textbox'), { target: { value: 'John' } });
diff --git a/packages/ui/src/form/DynamicFormField/DynamicFormField.tsx b/packages/ui/src/form/DynamicFormField/DynamicFormField.tsx
index c310fdff57..6899adb0e3 100644
--- a/packages/ui/src/form/DynamicFormField/DynamicFormField.tsx
+++ b/packages/ui/src/form/DynamicFormField/DynamicFormField.tsx
@@ -24,7 +24,7 @@ export interface DynamicFormFieldProps {
     placeholder?: string;
     label?: ReactNode;
     isFloatingLabelEnabled?: boolean;
-    isNewPhoneValidationExperimentEnabled?: boolean;
+    isPhoneNumberValidationEnabled?: boolean;
     selectedCountry?: string;
     onChange?(value: string | string[]): void;
 }
@@ -51,7 +51,7 @@ const DynamicFormField: FunctionComponent<DynamicFormFieldProps> = ({
     extraClass,
     isFloatingLabelEnabled,
     selectedCountry,
-    isNewPhoneValidationExperimentEnabled = false,
+    isPhoneNumberValidationEnabled = false,
 }) => {
     const fieldInputId = inputId || name;
     const fieldName = parentFieldName ? `${parentFieldName}.${name}` : name;
@@ -117,7 +117,7 @@ const DynamicFormField: FunctionComponent<DynamicFormFieldProps> = ({
                 fieldType={fieldType}
                 id={fieldInputId}
                 isFloatingLabelEnabled={isFloatingLabelSupportedFieldType}
-                isNewPhoneValidationExperimentEnabled={isNewPhoneValidationExperimentEnabled}
+                isPhoneNumberValidationEnabled={isPhoneNumberValidationEnabled}
                 label={labelComponent}
                 max={max}
                 maxLength={maxLength}
diff --git a/packages/ui/src/form/DynamicFormField/DynamicFormFieldSelector.tsx b/packages/ui/src/form/DynamicFormField/DynamicFormFieldSelector.tsx
index b9401e643c..debec26dbc 100644
--- a/packages/ui/src/form/DynamicFormField/DynamicFormFieldSelector.tsx
+++ b/packages/ui/src/form/DynamicFormField/DynamicFormFieldSelector.tsx
@@ -22,7 +22,7 @@ interface DynamicFormFieldSelectorProps {
     min?: FormFieldType['min'];
     maxLength?: FormFieldType['maxLength'];
     isFloatingLabelEnabled?: boolean;
-    isNewPhoneValidationExperimentEnabled: boolean;
+    isPhoneNumberValidationEnabled: boolean;
     selectedCountry?: string;
     onChange?(value: string | string[]): void;
 }
@@ -41,16 +41,12 @@ export const DynamicFormFieldSelector: FunctionComponent<DynamicFormFieldSelecto
         min,
         maxLength,
         isFloatingLabelEnabled,
-        isNewPhoneValidationExperimentEnabled,
+        isPhoneNumberValidationEnabled,
         selectedCountry,
         onChange,
     }) => {
-        // skipped for stores with maxLength as it caused formatting issues
-        // and for stores with a default value placeholder (to de-risk)
         const isNewPhoneFieldWithValidation =
-            isNewPhoneValidationExperimentEnabled &&
-            !maxLength &&
-            !placeholder &&
+            isPhoneNumberValidationEnabled &&
             dynamicFormFieldType === DynamicFormFieldType.TELEPHONE;
 
         const renderInput = useCallback(