Zip5 Record Layout Field Name Beg. Position End Position Length Comments State 1 2 2 Zip Code 3 7 5 Carrier 8 12 5 Pricing Locality 13 14 2 Rural Indicator 15 15 1 Effective 1/1/2007 Blank=urban, R=rural, B=super rural Bene Lab CB Locality 16 17 2 Lab competitive bid locality Z1 = CBA 1 Z2 = CBA 2 Z9 = Not a demonstration locality Rural Indicator2 18 18 1 What was effective 12/1/2006 Filler 19 20 2 Plus Four Flag 21 21 1 0 = no +4 extension, 1 = +4 extension Filler 22 75 54 Year/Quarter 76 80 5 YYYYQ