Compare the Top Second Phone Number Services in Japan as of March 2026

What are Second Phone Number Services in Japan?

Second phone number services provide individuals and businesses with an additional phone number that can be used separately from their primary phone line. These services are commonly used for privacy, marketing purposes, or managing work and personal calls. Second phone numbers can be used for different purposes, such as handling customer inquiries, managing online transactions, or protecting personal phone numbers from exposure. Many services offer features like call forwarding, voicemail, text messaging, and the ability to choose a local area code. These services are particularly useful for freelancers, entrepreneurs, or anyone who needs to maintain separate lines for personal and professional use. Compare and read user reviews of the best Second Phone Number services in Japan currently available using the table below. This list is updated regularly.

  • 1
    conXhub

    conXhub

    conXhub

    conXhub is a Cellular software company that addresses the same marketplace as VoIP. Patented technology combines data and cellular - from a single mobile device to an international call-centre infrastructure. Don't spend money on new phones or phone systems, use what you've already got. For businesses that rely on VoIP, we provide an alternative - built on the strengths of mobile networks. No issues with power outages, internet failure, poor quality calls, security, or flexible working.
    Starting Price: $5/month/user
  • 2
    Cybtel

    Cybtel

    Cybtel

    Introducing Cybtel, the ultimate solution for international calling, texting, and DID number provision. With Cybtel, distance is no longer a barrier to staying connected with loved ones or conducting business worldwide. Experience unparalleled clarity and convenience in your global communications journey.
  • 3
    magicJack

    magicJack

    magicJack Vocaltec

    Stay Connected to Your Business. Get a robust, ready-to-use business VoIP phone system with the essential features that will help you focus on your customers no matter where you are. Each line includes: - Unlimited U.S and Canada calling - Music On Hold - Caller ID - Enhanced Call Forwarding - Free Mobile App (Android & iOS) - Voicemail - Conference Bridge Get crystal voice quality using magicJack's VoIP technology and 99.99% uptime guarantee. Big business benefits without the high costs. Lines start as low as $15.99/mo/line. Get 24-hour access to your account online, pay your bill, make account updates and more. We’ve made it easy to get you started. Our VoIP phone systems are ready to use straight out of the box. Simply plug in the phone and you’ll be up and running in minutes.
    Starting Price: $15.99 per line per month
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