###UPS
/\b(1Z ?[0-9A-Z]{3} ?[0-9A-Z]{3} ?[0-9A-Z]{2} ?[0-9A-Z]{4} ?[0-9A-Z]{3} ?[0-9A-Z]|[\dT]\d\d\d ?\d\d\d\d ?\d\d\d)\b/
###FEDEX
/(\b96\d{20}\b)|(\b\d{15}\b)|(\b\d{12}\b)/
/\b((98\d\d\d\d\d?\d\d\d\d|98\d\d) ?\d\d\d\d ?\d\d\d\d( ?\d\d\d)?)\b/
/^[0-9]{15}$/
###USPS
/(\b\d{30}\b)|(\b91\d+\b)|(\b\d{20}\b)/
/^E\D{1}\d{9}\D{2}$|^9\d{15,21}$/
/^91[0-9]+$/
/^[A-Za-z]{2}[0-9]+US$/