diff --git a/homeassistant/components/modem_callerid/sensor.py b/homeassistant/components/modem_callerid/sensor.py
index de8e4b2f73c..db901511d5f 100644
--- a/homeassistant/components/modem_callerid/sensor.py
+++ b/homeassistant/components/modem_callerid/sensor.py
@@ -4,7 +4,7 @@ from __future__ import annotations
 
 from phone_modem import PhoneModem
 
-from homeassistant.components.sensor import SensorEntity
+from homeassistant.components.sensor import RestoreSensor
 from homeassistant.config_entries import ConfigEntry
 from homeassistant.const import EVENT_HOMEASSISTANT_STOP, STATE_IDLE
 from homeassistant.core import Event, HomeAssistant, callback
@@ -40,7 +40,7 @@ async def async_setup_entry(
     )
 
 
-class ModemCalleridSensor(SensorEntity):
+class ModemCalleridSensor(RestoreSensor):
     """Implementation of USB modem caller ID sensor."""
 
     _attr_should_poll = False
@@ -62,9 +62,21 @@ class ModemCalleridSensor(SensorEntity):
 
     async def async_added_to_hass(self) -> None:
         """Call when the modem sensor is added to Home Assistant."""
-        self.api.registercallback(self._async_incoming_call)
         await super().async_added_to_hass()
 
+        if (last_state := await self.async_get_last_state()) is not None:
+            self._attr_extra_state_attributes[CID.CID_NAME] = last_state.attributes.get(
+                CID.CID_NAME, ""
+            )
+            self._attr_extra_state_attributes[CID.CID_NUMBER] = (
+                last_state.attributes.get(CID.CID_NUMBER, "")
+            )
+            self._attr_extra_state_attributes[CID.CID_TIME] = last_state.attributes.get(
+                CID.CID_TIME, 0
+            )
+
+        self.api.registercallback(self._async_incoming_call)
+
     @callback
     def _async_incoming_call(self, new_state: str) -> None:
         """Handle new states."""