Eis um adicional interessante para nossas tabelas de siglas onde, como podem ver, estão a faixa de CEPs para cada estado:
AC;Acre ;69900000;69999000
AL;Alagoas ;57000000;57999000
AM;Amazonas ;69000000;69899000
AP;Amapa ;68900000;68999000
BA;Bahia ;40000000;48999000
CE;Ceara ;60000000;63999000
DF;Distrito Federal ;70000000;73999000
ES;Espirito Santo ;29000000;29999000
GO;Goias ;72800000;76999000
MA;Maranhao ;65000000;65999000
MG;Minas Gerais ;30000000;39999000
MS;Mato Grosso do Su;79000000;79999000
MT;Mato Grosso ;78000000;78899000
PA;Para ;66000000;68899000
PB;Paraiba ;58000000;58999000
PE;Pernambuco ;50000000;56999000
PI;Piaui ;64000000;64999000
PR;Parana ;80000000;87999000
RJ;Rio de Janeiro ;20000000;28999000
RN;Rio Grande do Nor;59000000;59999000
RO;Rondonia ;78900000;78999000
RR;Roraima ;69300000;69399000
RS;Rio Grande do Sul;90000000;99999000
SC;Santa Catarina ;88000000;89999000
SE;Sergipe ;49000000;49999000
SP;Sao Paulo ;01001000;19999000
TO;Tocantins ;77000000;77999000