How do you find network access code on Samsung galaxy S5?

To find the network access code on a Samsung Galaxy S5, go to the "Settings" app and tap on "About device." Look for the "Status" option, and then select "SIM card status." Here, you may find information related to your network, including the access code or PIN if it is set. If you're looking for a specific code for network unlocking, you may need to contact your carrier for assistance.