Attempting to circumvent a user's privacy settings is unethical and disrespects their digital boundaries.
Depending on your local privacy laws (like those in Bangladesh or other regions), such actions could also carry legal repercussions.
What Android Users Can Do (Legitimately and Safely) on Telegram
If you wish to contact someone on Telegram whose phone number is hidden, you have legitimate, secure options:
Use Their Username: If the person has set a public username (e.gtheirusername), you can easily find them and initiate a conversation without needing their number. This is Telegram's recommended philippines telegram mobile phone number list method for anonymous contact.
Mutual Groups/Channels: If you share a group or channel with the person, you can usually tap on their profile within that shared space to start a private chat.
Politely Ask: The simplest, most respectful, and safest method is to send them a Telegram message and politely ask for their contact number. Respect their decision if they decline.
Truecaller for Android: A Legitimate Helper (Not a "Bot" to Unhide Numbers)
Truecaller is a widely used Android app for identifying unknown numbers, and it does offer integration with Telegram (and WhatsApp). However, it's crucial to understand its role:
Official App Integration: Truecaller's features for identifying unknown WhatsApp and Telegram callers/message senders are integrated within its official Android app. You download the Truecaller app from the Google Play Store.
How it Works on Android: For Android, Truecaller leverages permissions like "Notification Access" and "Draw over other apps." When an unknown number calls or messages you on Telegram (or WhatsApp), Truecaller's system intervenes to display an identification pop-up based on its vast crowdsourced and business databases.