Mask Phone Number
Mask phone numbers, optionally revealing the last digits.
Mask Phone Number is a browser-based text tool on TextToolsBase. Mask phone numbers, optionally revealing the last digits. To use it, paste or type your text and view the result directly in your browser — no signup and nothing to install.
Phone numbers in records and messages often need hiding, but support and billing teams sometimes still want the last few digits to confirm an account.
Mask Phone Number masks the digits and lets you reveal the last two or four.
How to use Mask Phone Number
- Paste text that contains phone numbers.
- Choose how many end digits to reveal: none, the last two, or the last four.
- Copy the text with the numbers masked.
Use cases
- Masking phone numbers in an exported contact list.
- Revealing only the last four digits for account confirmation.
- Hiding numbers in a chat log before sharing.
Good to know
Mask Phone Number detects number-like sequences and masks their digits, keeping the count of revealed end digits you choose. It is built to skip things that look like dates or addresses to reduce false matches, and it requires separators or a leading plus so plain counts are not masked. Detection is heuristic, so review unusual formats.
Frequently asked questions
Can I reveal the last four digits?
Yes. Choose to keep the last two or four digits visible, or none at all, depending on what you need to confirm.
Does it avoid dates and addresses?
It tries to. Date-like and address-like number patterns are skipped to cut down false positives, though unusual formats should be reviewed.
Why was a number in my text not masked?
Very short numbers, or bare digit runs with no separators or plus sign, are treated as not phone-like and left alone.