area code
noun [ C ] US uk/ˈeə.ri.ə ˌkəʊd/ us/ˈer.i.ə ˌkoʊd/ (UK dialling code)
区号
a series of numbers used before the main phone number when you phone someone outside your own town or area
江苏热线英汉汉英双解词典包含207361条英汉翻译词条，涵盖了常用英语单词及词组短语的翻译及用法，是英语学习的必备工具。