Call Prefix & Caller ID Codes

📱 Call Prefix – Hide Your Number, Anonymous Calls, Prefix & Suffix Codes Want to hide your caller ID, make an anonymous call, or automatically add a prefix, suffix, or special code to outgoing calls — without editing your contacts? Call Prefix automatically applies codes like #31# (to hide your number), and other prefix/suffix codes to the numbers you dial, so you never have to type them manually. Perfect for work SIMs, secondary numbers, anonymous calls, and carrier service codes. ✨ Key features ➕ Automatically adds prefixes and suffixes to calls 🕵️ Hide your caller ID and make anonymous calls with #31# 📲 Quick home-screen widgets to turn codes on or off ⏸️ Automatically skips carrier voice announcements, where supported 🌍 International number handling with + and 00 replacement or removal 🆘 Emergency numbers are automatically excluded for safety 🔐 Privacy & security ❌ No access to your contacts ❌ No personal data collection ✅ All numbers are processed locally on your device 💎 How it works 🎁 Free trial: 24 hours of full access after first install 🎬 Video reward: +1 day of access for every video watched 💳 Premium: one-time purchase for lifetime unlimited use, no subscription ⚙️ Requirements 📱 Android 10 or higher ⚙️ The app must be set as your call redirection handler 🔋 Battery optimization exclusion recommended 📌 Compatibility ✅ Works on many Samsung, Xiaomi/Redmi, Motorola, OnePlus, Huawei/Honor, and Vivo devices ❌ Not compatible with some Oppo and Realme devices due to system limitations ⚠️ On some Samsung and Xiaomi Android 15 models, comma pauses may not be handled correctly 🔎 Common use cases • #31# to hide your number and make anonymous calls • Prefix codes for compatible business profiles • Suffix codes for dual-number setups • Quick codes without typing them every time ⭐ Call Prefix is the simple, fast way to hide your number, make anonymous calls, and manage prefixes, suffixes, and service codes without editing your contacts. ⚠️ This app is independent and not affiliated with any phone carrier. Codes and services may vary by carrier, plan, country, and device.