+1 800.462.8694 U.S. | +1 770.937.9735 Worldwide

Japan SIP Numbers

Enjoy amazing call quality and 20+ advanced features when you buy Japan SIP numbers. Try 30 days risk-free.

Enjoy amazing call quality and 20+ advanced features when you buy Japan SIP numbers. Try 30 days risk-free.

Get A Smart Virtual Phone Number
20+ Calling Features Included
Instant Number Availability
No Contracts
Answer Calls Anywhere

Try the Best Japan SIP Number Service Risk-Free

A Japan SIP number allows you to forward calls to any device in any location worldwide. You can also use your toll free or local Japan SIP DID number for outbound calling with custom caller ID and amazing voice quality. All Japan SIP phone number plans from AVOXI include virtual attendant (IVR), global conferencing, call recording, advanced routing rules and 20+ more features at no extra cost. There are no setup fees or minimum contracts, and you can port your existing numbers for free! Buy a Japan SIP number today and try 30 days risk-free.

Get More from Your Japan SIP Phone Numbers

There are many reasons to explain why so many companies choose AVOXI’s reliable Japenese SIP number service and global SIP trunk solutions. The benefits of choosing AVOXI include:

  • Japan SIP DID number plans start as low as $4.49 per month.
  • Enjoy 15 days of free SIP trunk number recording or set up an extended plan.
  • Experience amazing call quality and uptime ensured by data centers on 3 continents.
  • Receive $25 - $1,000 in credit when you port your existing numbers to AVOXI.
  • Get covered by 24/7 technical support, available in English and Spanish.
  • Instantly activate new numbers and Japenese SIP trunks online.
  • Customize 20+ advanced features, included with your service at no extra cost.
  • No setup fees or minimum contracts. Test your service for 30 days risk-free.
japan sip number

Find Your Toll Free or Local Japan SIP Number Today

AVOXI provides toll free and local Japan SIP DID numbers. To get custom pricing, learn more about Japan SIP trunk solutions, or receive assistance finding a specific phone number, please contact us today!

Toll Free and Local Japan SIP Phone Numbers Available

AVOXI makes it quick and easy to find the Japan SIP number you’re looking for. Popular dial-codes include:

Toll Free  |  Osaka  |  TokyoYokohama 

Need Help Finding the Right Number?

Let us help you by searching the largest global database of toll free and local numbers!

How to Buy a Japan SIP Number Today

You can set up your service online when you buy a Japan SIP number in the Virtual Shopping Cart. If the number you’re looking for is not displayed in the cart, we can secure new numbers for you in 1-2 business days. If you’re interested in setting up Japan SIP trunks, or if you would like to get a custom pricing plan, please contact us today!

How Much Does SIP Number Service Cost?

You can buy Japenese SIP number plans for as little as $4.49 per month. Inbound call rates range from $0.008 - $0.03 per minute, depending your plan. For detailed SIP termination rates, please contact us today! There are no setup fees or minimum contracts. Try 30 days risk-free.

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Buy Online

Buy Japan SIP numbers online. After your purchase, an AVOXI specialist will contact you and ensure your service is working according to your preferences.


Call AVOXI from

 US/Canada: 1 800 394 1980
 Australia: 1 800 834558
 United Kingdom: 0800 652 5029
 Worldwide: +1 (770) 937-9735
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Get Custom Pricing

If you don’t see the number you need, or if you expect high amounts of call traffic and would like to learn more about discounted rates, let us know!

Customer Success Story

Award-winning Resort Combines SIP Trunking Service with Legacy Technology to Support New Business

Legacy business phone systems don't have to hold your business back. Learn how an award-winning resort used AVOXI's VoIP services to reduce costs and streamline business operations or download any of our other customer case-studies. 

Business SIP Trunk Case Study - Solutions Brief

Why International Offices Choose AVOXI

AVOXI has been a global leader in business communications for nearly 20 years. Every month, AVOXI's reliable VoIP network handles over 40,000 minutes of calls for companies in 50+ countries. With AVOXI, you get:

Global Redundancy (16)

Worldwide Reliability 

We ensure maximum service uptime through our optimized global network, backed by hosted data centers in North America, Hong Kong, and South Africa.

24-7 Support (17)

Expert Support

With locations in the USA, Caribbean, Latin America, South Africa, and Hong Kong, our experienced support team is always available to help.

Crystal Clear Call Quality (6)

Superior Call Quality

Over 98% of calls handled by AVOXI receive MOS scores above 3.5 (the industry standard for “good” to “excellent” voice quality).

Customer Focus (7)

Customer Focus 

Each AVOXI customer receives a dedicated account manager focused on your company and who is always looking out for you and your company's needs.

GlobalConferencing (5)

Global Coverage

Direct partnerships and interconnections with Tier 1 carriers around the globe ensure that you get top-quality voice resolution at the most competitive rates in 120+ countries.

Scalability&Flexibility (6)

Simplified Scalability

AVOXI’s large portfolio of VoIP telephony solutions and cloud-based platforms makes it easy to customize our communication services with your evolving business needs.

Frequently Asked Questions

How long does it take to get Japan SIP numbers?

AVOXI provides Japenese SIP numbers in 24 - 48 hours or less. In most cases, your number is activated the following business day.

I already have a Japanese SIP number, but I want to save money with AVOXI. What can I do?

To reduce call costs or use our service with an existing number, simply transfer your Japanese SIP number to AVOXI. SIP number porting is a quick and easy process.

Can I make outbound calls with my SIP DID?

Yes, AVOXI includes outbound calling and custom caller ID with any SIP did number plan.

How many concurrent calls can I make with a Japan SIP trunk solution?

Japenese SIP trunk plans come with as many as 480 channels per trunk, and there is no limit to how many trunks you can provision. For Japanese SIP trunk plans and pricing, contact us today!

How else can AVOXI help my business?

In addition to Japan SIP numbers, popular services from AVOXI include: