numbering plan area編輯正在努力提供更完整的內容，建議 20 分鐘後再回來看看numbering plan areanumbering plan area — 名詞名詞1. a geographic region assigned a specific telephone area code1.名詞釋義電話區碼區域a geographic region assigned a specific telephone area code例句New York City is in numbering plan area 212.