Back to ...
Understanding Selective Service System numbers
Sharon Toon of SSS explains the elements that make up a "draft" number like the example below:
40 - 105 - 47 - 110
First element (40) = The state code. Every state, U.S. territory and New York City has a number from 1 to 56. Sharon provided a list of those state numbers.
Second element (105) = The Selective Service local board number. Each state had anywhere from a few dozen to hundreds of local boards.
Third element (47) = The registrant's birth year. In this case, 1947
Fourth element (110) = Line number. Local boards maintained a ledger of draft registrants for each year. This registrant's record would be in the 1947 ledger on Line 110.
Selective Service System state number codes
56 states and territories in alphabetical order
(Courtesy of Sharon Toon of SSS)