北美自然摄影协会（NANPA）是一个非盈利性机构，北美地区专注于自然摄影的社团，提供信息、教育、启示和机遇给所有对自然摄影感兴趣的人，北美自然摄影协会...
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... The FCC has delegated the overall responsibility for the neutral administration of NANP numbering resources to the North American Numbering Plan Administration (NANPA), subject to directives from regulatory authorities in the countries that share the NANP.
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