area 188Area codes locator. The North American Numbering Plan (NANP) divides the territories of North America into Numbering Plan Areas (NPAs), which are encoded numerically with a three-dittiling_area = 236 ft² - 48 ft² = 188 ft². Now, that puts us one step closer to finishing the pool and being able to admire your work while drinking a cold one. That said, the prism isn't the only 3D