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A resource site that contains local calling, area code, and prefix information for the U.S., Canada and other countries that are a part of the North American Numbering Plan.
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The central administration for the management of Toll Free services
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The entity responsible for providing neutral administration of NANPA numbering resources.
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The entity that licenses short codes for use on outbound text message campaigns.
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The entity that provides standards for self-regulation of marketing to wireless devices.