diff --git a/pydantic_extra_types/phone_numbers.py b/pydantic_extra_types/phone_numbers.py
index 4c25e452..f776cdc4 100644
--- a/pydantic_extra_types/phone_numbers.py
+++ b/pydantic_extra_types/phone_numbers.py
@@ -8,7 +8,7 @@
 
 from typing import Any, Callable, ClassVar, Generator
 
-from pydantic import GetCoreSchemaHandler
+from pydantic import GetCoreSchemaHandler, GetJsonSchemaHandler
 from pydantic_core import PydanticCustomError, core_schema
 
 try:
@@ -41,6 +41,14 @@ class PhoneNumber(str):
     max_length: int = 64
     """The maximum length of the phone number."""
 
+    @classmethod
+    def __get_pydantic_json_schema__(
+        cls, schema: core_schema.CoreSchema, handler: GetJsonSchemaHandler
+    ) -> dict[str, Any]:
+        json_schema = handler(schema)
+        json_schema.update({'format': 'phone'})
+        return json_schema
+
     @classmethod
     def __get_pydantic_core_schema__(cls, source: type[Any], handler: GetCoreSchemaHandler) -> core_schema.CoreSchema:
         return core_schema.general_after_validator_function(
diff --git a/tests/test_phone_numbers.py b/tests/test_phone_numbers.py
index 62fce284..1d3a1051 100644
--- a/tests/test_phone_numbers.py
+++ b/tests/test_phone_numbers.py
@@ -50,3 +50,20 @@ def test_parse_error() -> None:
 def test_parsed_but_not_a_valid_number() -> None:
     with pytest.raises(ValidationError, match='value is not a valid phone number'):
         Something(phone_number='+1 555-1212')
+
+
+def test_json_schema() -> None:
+    assert Something.model_json_schema() == {
+        'title': 'Something',
+        'type': 'object',
+        'properties': {
+            'phone_number': {
+                'title': 'Phone Number',
+                'type': 'string',
+                'format': 'phone',
+                'minLength': 7,
+                'maxLength': 64,
+            }
+        },
+        'required': ['phone_number'],
+    }