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There are times when you may want to use the 9 digit zip code validation for US. The 9 digit zip code is usually in format like this #####-####. For a 9 digit US zip code validation use below regular Expression. ^([0-9]{5}-[0-9]{4})$.
New Try the nearest zip code in the area while checking for coverage (ask customer for this). Once it pushes through or validates, proceed with Activation. Once you have reached Lifeline Zip Code verification, enter the Zip Code in the Approval Letter. The zip code is connected with the Lifeline Key. If the zip code is in an area without coverage, it should not have been approved. If you see this, have the customer call the 1-800-851-3473 number and get a new zip code.