can i locate my lost iphone if it is dead and the service has been transfered to another phone.

To track a lost of stolen iPhone, all three of the following must true:

1. You had activated Find My before the phone went missing
2. It is powered on
3. It is connected to a network

If any one of the above is not true, you can't track it.

See this link for guidance on what to do if your iPhone is lost of stolen --> If your iPhone, iPad, or iPod touch is lost or stolen - Apple Support

No. If your iPhone, iPad, or iPod touch is lost or stolen - Apple Support