 
 <prompt> Wetin be di designation wey fit give beta location of di area wey you dey ship go for Guam? Based on di question wey dey before dis one, write one context wey get di answer. E fit be 1 - 20 sentences. Context: <response>: In 1899, di local postage stamps dem bin dey overprinted "Guam" as dem do for di oda former Spanish colonies, but dis one no dey happen again shortly after and na regular U.S. postage stamps dem dey use since then. Because Guam na part of di U.S. Postal System (postal abbreviation: GU, ZIP code range: 96910–96932), mail wey dey go Guam from di U.S. mainland dey see as domestic and no extra charges dey required. Private shipping companies like FedEx, UPS, and DHL, however, no get any obligation to do so, and dem no dey see Guam as domestic. 