Telephone Area Codes
收藏data.gov2025-12-20 收录
下载链接：
https://catalog.data.gov/dataset/telephone-area-codes-00427
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资源简介：
Maryland Telephone Area Code Boundaries represents the telephone area codes for the State of Maryland. They are also known as Numbering Plan Areas (NPA). The...
马里兰州电话区号边界数据集（Maryland Telephone Area Code Boundaries）涵盖了马里兰州的电话区号边界信息。此类编号区域亦被称为编号计划区（Numbering Plan Areas，简称NPA）。其……
提供机构：
State of Maryland
