The design of the snow-white snow-white snowflakes and the snow-shoe snowflakes With the largest number of users in Japan, it offers the highest level of safety and security for your smartphone.

We provide the best security and protection for your smartphone with the largest share of users in Japan. (Popular communication app GooglePlay (free category) 1st place in March 2024)

Phonebook browsing detects fraudulent phone numbers faster than law enforcement agencies.

Phonebook Navi's information collection system uses unique analytics technology to collect, analyze, record and block weak signals provided by tens of millions of users in real time.

[Note] If you do not want to identify the other party, cancel battery saver (see the bottom of the page for how to cancel)

[Note] Cannot be used in conjunction with Rakuten Link (see below)

[Configuration required]

To comply with Google's latest regulations, set Contacts Navigation as a caller ID/nuisance caller app on Android 10 or later.

By doing this, the caller ID display and blocking function will work.

Phonebook Navi is an expert specializing in phone number analysis for about 16 years, since 2008, and has currently identified more than 6 billion phone numbers in Japan and abroad.

Only Phonebook Navi can identify phone numbers using a huge amount of information and the latest analysis technology.

Get peace of mind and security with Phonebook Navigator, the user's number one nuisance call prevention app.

・No. 1 in Japan for number of number identification app users

・No.1 in Japan by number of phone number information website users

・No.1 in Japan by number of registered phone numbers

・Popular communication app GooglePlay (free category) 1st place in March 2024

The phone numbers of the delivery person and the recruiter are also registered, making it easier to determine which calls should be answered.

The app is easy to use, just tap the icon to launch it after installation.

When you receive a call, the phone number is automatically searched and displayed along with the nuisance level.

Since phone book browsing is used by many users, it is also effective as a business card function for callers.

You can tell the recipient the name of the company and what the company does before responding, making it easier for the recipient to feel safe.

For more information, see Business Services (Caller Functions) in the application menu.

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Phonebook browsing request

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Even if you post an issue with the app on Google Play reviews, it will be difficult to resolve the issue because we cannot understand the details.

If you have any problems,

[email protected]

Describe the problem and send it to us. We also accept your orders.

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Even calls received from a landline can be forwarded to a cell phone, making it possible to identify the caller.

*Please transfer to a cell phone that has Phonebook Navi installed.

By using this method to handle incoming calls from landlines, you can block fraudulent and nuisance calls.

Phonebook Navi offers functions to display destination and identify nuisance calls for free.

For households with elderly people, we highly recommend setting up landline forwarding as this is a strong security measure.

[Main functions of phone book navigation]

・Nuisance call detection and blocking (identifies caller from incoming call number, caller ID)

・Record and display call history and record rejection (identify the other party from previous call history)

・As a business card function for callers

■ Powerfully block nuisance calls with automatic call rejection function

Powered by highly accurate AI to predict call content. Automatically identifies fraud, solicitations and sales calls and rejects calls.

・Auto call rejection function (AI rejection) can be used by in-app purchase (100 yen per month)

・Simple call reject function (rejects calls based on nuisance level) is available for free.

■Phonebook navigation displays the "nuisance call level" calculated by users using the app.

You can intuitively judge from the graph whether the call is nuisance and should be rejected or whether it is a call that needs to be answered.

■Review information posted by other users will be displayed as review information when receiving a call.

*For example, when a courier company contacts you to confirm that you are home, usually only the phone number will be displayed, as the courier's cell phone is not registered on the device.

If you install phone book navigation, it will display as "OO Delivery Driver", so you can answer calls with confidence.

*More than 90% of delivery companies in Japan are registered.

■Phone numbers that you do not want to answer, such as fraudulent or nuisance calls, can be recorded based on the information provided by users.

This information is very effective in preventing you from being involved in a crime.

Installing phone book browsing in advance will also be effective as a crime prevention measure.

Phone calls for scheduling, me or me fraud, bank transfer fraud, special fraud, fictitious billing, etc. are recorded.

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Upgrade for more convenience with paid options

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●In the paid version, AI automatically identifies and rejects nuisance calls.

*The free version will notify you of hazards, but cannot be automatically rejected.

● Unlimited number of incoming call history (you can look into the past)

*The free version has a history limit of 30 items.

●Opt out of in-app ads

●Cancel the judgment screen after the call ends

●Check more detailed information on the details screen

Reasons why we recommend paid options >>>

The accuracy of nuisance caller identification has become more accurate, and many functions can be used.

It is especially recommended for seniors as it automatically blocks fraudulent and soliciting calls.

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[Phonebook Navi for Android] The application is

・Caller ID and spam detection and blocking

・Record and view phone app call history

To provide the above functionality

1.Phone number

2.Call history

3. Application crash log data

4. Identifiers associated with each device, browser and application

Data 1 to 4 above is being sent to the phone book navigation server (telnavi.jp).

*All information sent will be encrypted using SSL.

* After the call ends, you can manually send the caller's phone number, review the information and evaluate the nuisance to the phone book browsing server in order to provide the original functions of the application and service. This information will be shared with third parties other than the application provider.

[Information used within the application and not sent externally]

-Referenced in the application to determine whether the phone number registered in the device's address book should be contacted by the address book navigation server. The information registered in your device's calendar will not be sent to an external server.

[How to stop pop-ups (foreground service)]

You can prevent pop-ups from appearing by disabling "Display information when receiving a call" and "Display information when making a call" in the settings screen.

This operation will stop the foreground service.

Telnavi Engineers TEAM

*Rakuten Link does not work because it cannot receive phone line calls. Rakuten Link must be terminated. Rakuten Link is a call that uses data communication.

*If the phone book navigation is set to "optimize" with battery saving (battery optimization), the pop-up may not be displayed when receiving a call. Cancel phone book browsing from Battery Saver.

To set it up, go to your device's Settings > Apps > "Contact List Navigation" > Battery > Battery Optimization > Release "Contact Directory Navigation" from optimization. (The expression may differ slightly depending on the Android version)

Even if you cancel Phone Book Browsing in Battery Saver mode, there will be no change in battery consumption. A7up 7 Down Poker battery is only used when receiving calls.

*Although incoming calls from IP phones are supported, pop-up information cannot be displayed for calls answered using an IP phone application. (Rakuten Link, LINE calls, etc.)

Check if the free version works before purchasing the paid version. [Refunds cannot be made after purchase]