| ES2012ABCS |
| The letter/numeral combinations which form the first part of the amateur call will be considered the prefix. Examples: K6, N6, WD4, HG1, HG19, WB2, KC2, OE2, U3, ZS66, etc. Any difference in the numbering, lettering, or order of same shall constitute a separate prefix. See rules of The CQ WPX Awards Program. http://www.py2yp.com/depot/wpxrules.pdf |