Quickly and easily identify and block unknown callers. 100% Free.
3.33·12,813 reviews·1,000,000+ downloads
Reverse Lookup helps identify unknown callers and block spam for free, using publicly available data. With over 1 million downloads and 12,874 ratings across roughly 16 years on the market, it combines community insights, location context, and easy contact saving to streamline how you manage calls.
Pros & Cons
100% free and anonymous with no login or subscriptions required.
One-tap Google search to expand lookups and location mapping when available.
Easily save results as contacts for quick reference.
Community-driven insights via the comments section for call context.
Uses a broad set of permissions (READ_CONTACTS, READ_CALL_LOG, WRITE_CONTACTS, etc.) which may raise privacy concerns.
Data can be outdated since it relies on phone company directories.
Not ranked in any top app lists, indicating limited visibility in rankings.
About Reverse Lookup - Call ID/Block
Reverse Lookup - Call ID/Block is a communication app developed by Nomadic Ratio.
Download Statistics
Reverse Lookup - Call ID/Block has been downloaded 2 million times. In the last 30 days, the app was downloaded 0 times.
User Ratings
Reverse Lookup - Call ID/Block is rated 3.33 out of 5 stars. The rating is based on 13 thousand ratings.
App Information
Reverse Lookup - Call ID/Block is FREE to download. The APK download size is 9.40 MB. The latest version available is 3.7.12. The last update was on April 22, 2026.
Technical Requirements
Reverse Lookup - Call ID/Block requires Android 6.0+ or higher. The app has a content rating of Everyone. The app has been available on Google Play before 2010.
Description
Reverse Lookup helps you easily identify unknown callers, detect spam calls, and block spammers and scammers from calling in the future.
Additional Features: ★ Strength in numbers - Comments section allows you to gain insight on calls from other users ★ Easily save as a contact ★ Map the caller's location (when available) ★ Expand the search to popular search engines like Google with one tap ★ And more!
100% free and anonymous, with no login , no subscription, and no in-app purchases required.
If you enjoy this app but would prefer it without ads, please check out our paid version - Reverse Lookup Plus. It contains the same functionality, without advertising, for a one-time fee that helps support development of future updates. The choice is yours!
Need Help? If you have any trouble, please read the Notes and FAQ sections below and if they don't answer your question, please send us an email so we can help you. We read and respond to every single email we receive, usually within a few hours. Reviews doubling as support requests are difficult to follow up on properly and sometimes we may miss them altogether.
Notes • There are NO fees associated with this app whatsoever. • There is no public directory for cellphones, so we cannot get much data on them, sorry. • This app returns *publicly available data as published by phone companies*. • If information returned is outdated, it's because it's outdated in the phone company's directory. • The location being returned is typically the billing address or carrier's office for that number. It is not possible to return GPS data.
PERMISSIONS Because we value privacy and respect yours, we'd like you to know what permissions are used for in this app. If you'd like a more detailed explanation, please visit http://nomadicratio.com/word-android-permissions/ •INTERNET - required to reach lookup databases •READ CONTACTS / WRITE CONTACTS - read is used to filter out known numbers from being listed as well as determining which numbers to show a notification for. write is used to create "send to voicemail" contacts •CALL PHONE - for one click calling after a lookup is complete •READ PHONE STATE - used to create notifications when an unknown number calls(if set in preferences) •NETWORK STATE - to ensure you have a data connection when using the app •GET ACCOUNTS - used to attach "send to voicemail" contacts to your primary Google account(required for the setting to work). old method of creating these contacts did not require this permission but that did not work on some devices. •READ CALL LOG - to list your unknown calls on the main screen
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Comments on Reverse Lookup - Call ID/Block for Android
★★★★☆Mark Stone· Nov 28, 2022
Duck Go not working in expanded search ootions
★★★★★Gustavo· Apr 5, 2025
My girlfriend uploaded this app and it's really Informative. I like that also my peers may have written about a number I. discussions. Great features!
★★★★☆Tina Moraza· Oct 25, 2022
Updated review 5 years later... I don't know what happened to this app. I used to be able and pull up the caller information or something close to it, but I always had something come back after the search. Now, nothing. Not a single thing comes back in search Google even says nothing found. Unfortunately I had to Uninstall because It's pretty much useless. Sorry. Just what I was looking for. . Straight forward and easy to use.
★★★★★Alison Agee· Dec 16, 2022
Love this! Helps me figure out whose who in my call log! Thank you! You guys are awesome!
★☆☆☆☆Lorrie R· Mar 25, 2026
I have had this app for a few years now loved it because it told info about every phone number and now....nothing it says spam every time and does not show me who the number belongs too. I'm done !!!
★★☆☆☆Brittany Michele Sullivan· Sep 8, 2022
Has anyone put a number in the free version and actually gotten any info back? I put 16 different numbers in and every last one came back as 'unlisted, spoofed, or a mobile number'. So, I tried a few numbers I already knew the info for, and only one came back with info. Just saying...
★★☆☆☆Teresa Birdsell· Jan 21, 2023
Most calls come up as "Unlisted". Very seldom do I get an actual phone number.
Google Play Rankings for Reverse Lookup - Call ID/Block
This app is not ranked
Technologies used by Reverse Lookup - Call ID/Block
Reverse Lookup - Call ID/Block is requesting 18 permissions and is using 28 libraries.
Show details
Trust & Safety: Trust & safety: The app emphasizes privacy and provides permission explanations, using publicly available data from phone companies. It does not require a login, and it notes that location data is not GPS. Permissions include INTERNET, READ_CONTACTS, WRITE_CONTACTS, READ_CALL_LOG, READ_PHONE_STATE, GET_ACCOUNTS, and others to support lookups and notifications.
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