diff --git a/.isort.cfg b/.isort.cfg
new file mode 100644
index 0000000..981833b
--- /dev/null
+++ b/.isort.cfg
@@ -0,0 +1,5 @@
+[settings]
+profile=black
+line_length=100
+atomic=true
+skip=migrations
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
new file mode 100644
index 0000000..ecf9a4a
--- /dev/null
+++ b/.pre-commit-config.yaml
@@ -0,0 +1,42 @@
+fail_fast: true
+repos:
+- repo: https://github.com/pre-commit/pre-commit-hooks
+  rev: v4.2.0
+  hooks:
+  - id: trailing-whitespace
+  - id: debug-statements
+  - id: check-added-large-files
+    stages: [commit]
+
+- repo: https://github.com/commitizen-tools/commitizen
+  rev: v2.24.0
+  hooks:
+  - id: commitizen
+    stages: [commit-msg]
+
+- repo: https://github.com/pre-commit/mirrors-yapf
+  rev: v0.32.0
+  hooks:
+  - id: yapf
+    stages: [commit]
+    args:
+    - --parallel
+    - --in-place
+    exclude: ^.*\b(migrations)\b.*$
+
+- repo: https://github.com/pycqa/isort
+  rev: 5.10.1
+  hooks:
+    - id: isort
+      stages: [commit]
+
+- repo: https://github.com/pre-commit/mirrors-mypy
+  rev: v0.942
+  hooks:
+  - id: mypy
+    additional_dependencies: [
+      django-stubs,
+      types-freezegun,
+      types-python-dateutil,
+    ]
+    stages: [commit]
diff --git a/.prospector.yml b/.prospector.yml
index c032c01..7e91956 100644
--- a/.prospector.yml
+++ b/.prospector.yml
@@ -1,4 +1,4 @@
-strictness: medium
+strictness: high
 test-warnings: true
 doc-warnings: false
 autodetect: true
diff --git a/.pylintrc b/.pylintrc
index 25d1095..3af2655 100644
--- a/.pylintrc
+++ b/.pylintrc
@@ -1,7 +1,7 @@
 [MASTER]
 profile=no
 persistent=yes
-ignore=migrations__init__.py
+ignore=migrations,__init__.py
 cache-size=500
 
 [MESSAGES CONTROL]
@@ -20,7 +20,7 @@ cache-size=500
 # E1101 Instace XX has no YY member (Django create members on the fly)
 # E1103 Instace of list has no YY member (Django create members on the fly)
 # E1120 Weird behavior with class based views
-disable=C0111,C1001,I0011,I0012,W0704,W0142,W0212,W0201,W0232,W0613,W0702,R0201,R0801,R0924,E1101,E1002,E1103,E1120,C0330,R0901
+disable=C0111,C1001,I0011,I0012,W0704,W0142,W0212,W0201,W0232,W0613,W0702,R0201,R0801,R0924,E1101,E1002,E1103,E1120,C0330,R0901,C0415
 
 [REPORTS]
 output-format=parseable
diff --git a/.style.yapf b/.style.yapf
new file mode 100644
index 0000000..9c0d2dd
--- /dev/null
+++ b/.style.yapf
@@ -0,0 +1,14 @@
+[style]
+based_on_style = pep8
+dedent_closing_brackets = true
+coalesce_brackets = false
+allow_split_before_dict_value = false
+column_limit = 100
+split_before_dot = false
+split_all_top_level_comma_separated_values = true
+spaces_around_tuple_delimiters = false
+space_between_ending_comma_and_closing_bracket = false
+blank_line_before_nested_class_or_def = false
+align_closing_bracket_with_visual_indent = true
+split_before_first_argument = false
+split_before_expression_after_opening_paren = true
diff --git a/.yapfignore b/.yapfignore
new file mode 100644
index 0000000..e69de29
diff --git a/ax3_model_extras/validators.py b/ax3_model_extras/validators.py
index f2749fb..a9ea9e5 100644
--- a/ax3_model_extras/validators.py
+++ b/ax3_model_extras/validators.py
@@ -1,5 +1,8 @@
 import magic
+import phonenumbers
+from django.core.exceptions import ValidationError
 from django.core.validators import BaseValidator
+from django.utils.deconstruct import deconstructible
 from django.utils.translation import gettext_lazy as _
 
 
@@ -60,3 +63,33 @@ def compare(self, a, b):
             return mime not in b
         except AttributeError:
             return True
+
+
+@deconstructible
+class PhoneNumberValidator:
+    message = _('Invalid phone number.')
+    code = 'invalid_phone_number'
+
+    def __init__(self, iso_code, message=None, code=None):
+        self.iso_code = iso_code
+
+        if message is not None:
+            self.message = message
+        if code is not None:
+            self.code = code
+
+    def __call__(self, value):
+        try:
+            mobile_number = phonenumbers.parse(str(value), self.iso_code)
+
+            if not phonenumbers.is_valid_number(mobile_number):
+                raise ValidationError(self.message, code=self.code)
+
+        except phonenumbers.NumberParseException as exc:
+            raise ValidationError(str(exc), code=self.code) from exc
+
+    def __eq__(self, other):
+        return (
+            isinstance(other, self.__class__) and self.iso_code == other.iso_code
+            and self.message == other.message and self.code == other.code
+        )
diff --git a/ax3_model_extras/webp.py b/ax3_model_extras/webp.py
index a6cd303..3bfb921 100644
--- a/ax3_model_extras/webp.py
+++ b/ax3_model_extras/webp.py
@@ -2,7 +2,6 @@
 import subprocess
 
 from django.core.files.base import ContentFile
-
 from PIL import Image
 
 
diff --git a/mypy.ini b/mypy.ini
new file mode 100644
index 0000000..1600c07
--- /dev/null
+++ b/mypy.ini
@@ -0,0 +1,11 @@
+[mypy]
+python_version = 3.8
+check_untyped_defs = True
+ignore_missing_imports = True
+show_error_codes = True
+disable_error_code = attr-defined,union-attr,misc
+warn_unused_ignores = True
+warn_redundant_casts = True
+warn_return_any = True
+warn_unused_configs = True
+exclude = ['build/']
diff --git a/setup.py b/setup.py
index f3e5ffd..e27e61b 100644
--- a/setup.py
+++ b/setup.py
@@ -23,7 +23,8 @@
     install_requires=[
         'django >= 3.2',
         'python-resize-image',
-        'python_magic'
+        'python_magic',
+        'phonenumbers',
     ],
     classifiers=[
         'Programming Language :: Python :: 3.6',