Mailer ID
A six or nine-digit number assigned by the USPS that identifies the specific business sending the mailing. Higher volume mailers are eligible to receive six-digit Mailer IDs, which have a larger range of sequence numbers associated with them; lower volume mailers will receive nine-digit Mailer IDs. To make it possible to distinguish six-digit IDs from nine-digit IDs, all six-digit IDs begin with a digit between 0 and 8, inclusive, while all nine-digit IDs begin with the digit 9.
Read more about this topic: Intelligent Mail Barcode, Data Payload
Famous quotes containing the word mailer:
“This is D.J., Disc Jockey to American turning off. Vietnam, hot dam.”
—Norman Mailer (b. 1923)