Context: In 1899, the local postage stamps were overprinted "Guam" as was done for the other former Spanish colonies, but this was discontinued shortly thereafter and regular U.S. postage stamps have been used ever since. Because Guam is also part of the U.S. Postal System (postal abbreviation: GU, ZIP code range: 96910–96932), mail to Guam from the U.S. mainland is considered domestic and no additional charges are required. Private shipping companies, such as FedEx, UPS, and DHL, however, have no obligation to do so, and do not regard Guam as domestic.

Question: In what year was the local postage stamp overprinted and has since been replaced?
Answer: 1899

Question: What type of postal service does Guam currently have today?
Answer: U.S. postage

Question: What is the current Zip Code range in Guam?
Answer: 96910–96932

Question: Which three major companies do not consider Guam as domestic when shipping is involved?
Answer: FedEx, UPS, and DHL

Question: In what year did Guam get regular U.S. postage stamps?
Answer: Unanswerable

Question: What private shipping company considers Guam as an international nation?
Answer: Unanswerable

Question: Which private shipping company charges more to ship packages to Guam?
Answer: Unanswerable

Question: Which private shipping company gets packages back and forth to Guam fastest?
Answer: Unanswerable

Question: In what year did UPS first start shipping packages to Guam?
Answer: Unanswerable