New Sites - Main » Business » Telecommunications » Resources » Numbering
Area Code Information(27th April, 2005): Detailed information on the history and current developments in North American NPA allocations.
Number Portability(27th April, 2005): Collates information on the regional initiatives in place to develop number portability and number pooling in the US.
800 Service Management System(27th April, 2005): Information about the central database for US toll free number management.
Top Sites - Main » Business » Telecommunications » Resources » Numbering
Area Code Information (): Detailed information on the history and current developments in North American NPA allocations.
Number Portability (): Collates information on the regional initiatives in place to develop number portability and number pooling in the US.
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