# ＊ Phone Number

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Phone number data represents cell phone or landline numbers associated with real users or businesses. Phone numbers are a type of PII data.  A key consideration is that **you do not want the real phone numbers in your dataset to leak**. However, you may want to also **preserve key characteristics of phone numbers** such as their format, international country code and region/area that they come from.

## Key Features

:earth\_americas: This sdtype **understands the geographical context** of phone numbers. It can extract international and region country codes that are embedded in your phone numbers.

:unlock: This sdtype offers the novel [**Contextual Anonymization**](/rdt/resources/use-cases/contextual-anonymization.md) technique on phone numbers that are Personal Identifiable Information (PII). 

## Browse Phone Number Transformers

<table data-view="cards"><thead><tr><th></th><th></th><th data-hidden data-card-target data-type="content-ref"></th></tr></thead><tbody><tr><td>＊<a href="/pages/kE0Bmc5oFE5dz5tVq5oc"><strong>AnonymizedGeo Extractor</strong></a></td><td>Anonymize phone numbers while preserving the geographical context</td><td><a href="/pages/kE0Bmc5oFE5dz5tVq5oc">/pages/kE0Bmc5oFE5dz5tVq5oc</a></td></tr><tr><td>＊<a href="/pages/ydYTemerbzpzlZNp16av"><strong>NewNumberMapper</strong></a></td><td>Pseudo-anonymize phone number data using a consistent mapping that preserves the geographical context.</td><td></td></tr><tr><td>＊<a href="/pages/KEuhHKnmQuXSQ072sjg4"><strong>GeoExtractor</strong></a></td><td>Extract geographical context from phone numbers for data science use.</td><td><a href="/pages/KEuhHKnmQuXSQ072sjg4">/pages/KEuhHKnmQuXSQ072sjg4</a></td></tr><tr><td><a href="/pages/9QnYHT40028wrumuonUY"><strong>AnonymizedFaker</strong></a></td><td>Create fake, anonymized phone numbers without considering the geographical context.</td><td><a href="/pages/9QnYHT40028wrumuonUY">/pages/9QnYHT40028wrumuonUY</a></td></tr><tr><td><a href="/pages/X47LsfVKMnn1N04sDFDx"><strong>PseudoAnonymizedFaker</strong></a></td><td>Create and use a reversible mapping without considering the geographical conext.</td><td><a href="/pages/X47LsfVKMnn1N04sDFDx">/pages/X47LsfVKMnn1N04sDFDx</a></td></tr></tbody></table>


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