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# Phone Numbers

The `pydantic_extra_types.phone_numbers` module provides the [`PhoneNumber`](/guides/pydantic-extra-types-pydantic-extra-types-phone-numbers#phonenumber) data type.

This class depends on the [phonenumbers](https://pypi.org/project/phonenumbers/) package, which is a Python port of Google's [libphonenumber](https://github.com/google/libphonenumber/).

## PhoneNumber

**Bases:** [`str`](https://docs.python.org/3/builtins/stdtypes.html#str)

A wrapper around the `phonenumbers.PhoneNumber` object.

It provides class-level configuration points you can change by subclassing:

## Examples

### Normal usage:

```python
from pydantic import BaseModel
from pydantic_extra_types.phone_numbers import PhoneNumber


class Contact(BaseModel):
    name: str
    phone: PhoneNumber


c = Contact(name='Alice', phone='+1 650-253-0000')
print(c.phone)
# > tel:+1-650-253-0000 (formatted using RFC3966 by default)
```

### Changing defaults by subclassing:

```python
from pydantic_extra_types.phone_numbers import PhoneNumber


class USPhone(PhoneNumber):
    default_region_code = 'US'
    supported_regions = ['US']
    phone_format = 'NATIONAL'


# Now parsing will accept national numbers for the US
p = USPhone('650-253-0000')
print(p)
# > 650-253-0000
```

### Changing defaults by using the provided validator annotation:

```python
from typing import Annotated, Union
import phonenumbers
from pydantic import BaseModel
from pydantic_extra_types.phone_numbers import PhoneNumberValidator

E164NumberType = Annotated[Union[str, phonenumbers.PhoneNumber], PhoneNumberValidator(number_format='E164')]


class Model(BaseModel):
    phone: E164NumberType


m = Model(phone='+1 650-253-0000')
print(m.phone)
# > +16502530000
```

### Attributes

#### default\_region\_code

The default region code to use when parsing phone numbers without an international prefix.

**Type:** [`str`](https://docs.python.org/3/builtins/stdtypes.html#str) | [`None`](https://docs.python.org/3/builtins/constants.html#None) **Default:** `None`

#### supported\_regions

The supported regions. If empty, all regions are supported.

**Type:** [`list`](https://docs.python.org/3/glossary.html#term-list)\[[`str`](https://docs.python.org/3/builtins/stdtypes.html#str)] **Default:** `[]`

#### phone\_format

The format of the phone number.

**Type:** [`str`](https://docs.python.org/3/builtins/stdtypes.html#str) **Default:** `'RFC3966'`

## PhoneNumberValidator

An annotation to validate `phonenumbers.PhoneNumber` objects.

### Attributes

#### default\_region

The default region code to use when parsing phone numbers without an international prefix.

If `None` (the default), the region must be supplied in the phone number as an international prefix.

**Type:** [`str`](https://docs.python.org/3/builtins/stdtypes.html#str) | [`None`](https://docs.python.org/3/builtins/constants.html#None) **Default:** `None`

#### number\_format

The format of the phone number to return. See `phonenumbers.PhoneNumberFormat` for valid values.

**Type:** [`str`](https://docs.python.org/3/builtins/stdtypes.html#str) **Default:** `'RFC3966'`

#### supported\_regions

The supported regions. If empty (the default), all regions are supported.

**Type:** [`Sequence`](https://docs.python.org/3/library/typing.html#typing.Sequence)\[[`str`](https://docs.python.org/3/builtins/stdtypes.html#str)] | [`None`](https://docs.python.org/3/builtins/constants.html#None) **Default:** `None`

## Related pages

- [API Documentation](./api-documentation-index.md)
- [Concepts](./concepts-index.md)
- [Dev Tools](./dev-tools-index.md)
- [Error Messages](./error-messages-index.md)
- [Examples](./examples-index.md)
- [Integrations](./integrations-index.md)
- [Internals](./internals-index.md)
- [Production Tools](./production-tools-index.md)
- [Pydantic](./pydantic-index.md)
- [Pydantic Core](./pydantic-core-index.md)

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