Question: When did the us start using zip codes?
Disambiguated questions and answers: question: When did the USPS start using zip codes?
When did the USPS start using the extended zip+4 code?
answer: 1963
1983
question: When did the US start utilizing ZIP codes?
When did the US start using ZIP+4 codes?
answer: 1963
July 1, 1963
1983
question: When did the US begin using zip codes?
When did the US begin using extended zip codes?
answer: 1963
July 1, 1963
1983
Natural Questions answer: 1963 (from the Wikipedia article "ZIP Code")