Data Masking Components: Generic Phone Nu

Generic Phone Nu

Purpose

This component masks phone numbers from any region by replacing the numeric digits with randomly generated values, while preserving all original separators, formatting characters and first digits (phone Number length - 7). It supports phone numbers of variable length (9-15) and does not enforce a specific format like the U.S. (xxx) xxx-xxxx style.

Examples:

+44 20 7946 0958 → +44 20 7121 4268
+44 20 7946 0958 → +44 20 1452 1184
+49-89-636-48018 → +49-89-910-28547
0034.912.345.678 → 0034.301.892.746

The component:

Preserves all special characters (e.g., +, -, ., (, ), spaces) as they appear in the input
Only replaces numeric digits
Does not allow alphabetic characters in the input
Preserving first 4 digits
Min – 9 digits. Max - 15 digits

The length and structure of the phone number are maintained by preserving the number of digits and position of separators. This allows for realistic-looking masked numbers while protecting the original values.

Algorithm

Variation of Random Character Permutation Algorithm

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Data Masking Components: Generic Phone Nu

1. Generic Phone Nu
1.1 Purpose
1.2 Algorithm

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