Numbering Resources Telecommunications
Sources of information on the history and development of worldwide public telephone numbering plans.
Top: Business: Telecommunications: Resources: Numbering
- Top/Reference/Directories/Address and Phone Numbers/Area Codes
- International Numbering Plans - A collection of all international numbering plans in numbering the world. numbering Some features require a paid numbering subscription.
- 800 Service Management System - Information about the central database for US toll numbering free number resources management.
- Area Code Information - Detailed information on the history and current developments numbering in North American NPA allocations.
- The Telephone Exchange Name Project - The historical relationship between North American telephone exchange telecommunications names and numbers.
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