Signal & Syntax · Numbers and formats
What Is a National Destination Code?
The national destination code (NDC) follows the country calling code. The NDC identifies a geographic area, a network or a service type.The national destination code (NDC) follows the country calling code. The NDC identifies a geographic area, a network or a service type.The national destination code (NDC) follows the country calling code. The NDC identifies a geographic area, a network or a service type.
Also calledNDC · area code
Example
+44 20 7946 0000 CC NDC SN
National Destination Code in Practice
In +44 20 7946 0000, the NDC is 20, the London area. Mobile ranges carry their own NDCs, pointing at a network or a mobile block. The national regulator sets NDC lengths in the In +44 20 7946 0000, the NDC is 20, the London area. Mobile ranges carry their own NDCs, pointing at a network or a mobile block. The national regulator sets NDC lengths in the In +44 20 7946 0000, the NDC is 20, the London area. Mobile ranges carry their own NDCs, pointing at a network or a mobile block. The national regulator sets NDC lengths in the numbering plannumbering plan. The . The . The subscriber numbersubscriber number follows the NDC. follows the NDC. follows the NDC.
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E.164 Phone Number Format Explained
The parts of an international number and how to convert a list. Read the guide →Run the Checks on Your Own List
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