Home » Regulations » 39 » c The figures normally used in New Zealand amateur radio callsigns are:   a.   any two-digit number, 45 through 99   b.   any two-digit number, 22 through 44   c.   a single digit, 5 through 9   d.   a single digit, 1 through 4 Your answer "c" is not correct. "d" is the right answer. PIB 46, Table 2 - ZL Series See http://www.rsm.govt.nz/cms/tools-and-services/publications/public-information-brochures-pibs/pib-46/ Next