Prosečne GPS koordinate za poštanski broj 571223: 19.578, 110.461
Spisak gradova:
>> Yongfeng Town/永丰镇等 571223, Hainan/海南, "Ding'an County/定安县", GPS koordinate: 19.57784,110.46113
Spisak gradova:
>> Yongfeng Town/永丰镇等 571223, Hainan/海南, "Ding'an County/定安县", GPS koordinate: 19.57784,110.46113