How To Write Your Address Philippines . When writing addresses on letters and packages, the sender should include the recipient's name, unit or building number, street address, barangay (or district if within manila), the city or municipality and the post code and province. The state of the nation address (sona; Valid Phone Number In Philippines from bostoncyclechic.blogspot.com Instead, focus your conversations on the joys of life: The concept of zip codes was first introduced and used in the united states of america to organize, speed up and improve the efficiency of sending mails. Remember to add a comma after the street address when you address a letter to an apartment.