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Get a Japan virtual phone number

Give customers in Japan a local +81 number they recognise, for Tokyo, Osaka and beyond, answered by your team or your voice-AI agent. No office in Japan needed.

Get a Japan numberTalk to sales
Japan flag

Your new number

+81 •••• ••••

Country code
+81
Number type
Local
Cities
Tokyo, Osaka, Yokohama
Region
Asia & Middle East
Connect with
SIP trunk (UDP or TCP, G.711) or the Call API
Plans
Vonyx Standard or Vonyx.HD

Benefits

Why teams choose a Japan number from Vonyx

A local number in Japan

Show a +81 caller ID, so customers in Tokyo and Osaka see a local number, not an unknown foreign one.

Built to stay clean

One owner per number, verified senders only and no borrowed caller IDs: the habits that get numbers flagged are ruled out.

Ready for voice AI

Connect the number to Vapi, Retell, ElevenLabs, LiveKit or any SIP client, or stream calls to your agent over the Call API.

Outbound and inbound

Place calls from your +81 number and receive calls on it, through the same SIP trunk.

Scales with your team

Add or release Japan numbers as campaigns and teams grow, with no hardware and no long contracts.

Answer from anywhere

Take Japan calls on your PBX, softphone, dialer or AI agent, wherever your team sits.

Why a clean number matters in Japan

When a call shows up as “Spam Likely” or an unknown foreign number, most people don't answer. Shared and recycled numbers get flagged, and once a number is flagged every call from it suffers.

Vonyx +81 numbers are run to stay clean, so your outreach in Japan has the best chance of being answered.

  • One owner per number, never shared with other senders
  • Every account verified before its first call
  • Calls can only show a number you own

How it works

How to get a Japan virtual number

  1. 1

    Create an account

    Sign up in the Vonyx console and pass KYC. Every account is verified before its first call.

  2. 2

    Buy a +81 number

    Pick an available Japan number in the console, for Tokyo, Osaka or Yokohama.

  3. 3

    Create a SIP trunk

    Get a username and password your PBX, dialer or AI platform signs in with.

  4. 4

    Start calling

    Point your agent at the trunk, or place calls through the Call API.

Features

Everything included with your Japan number

Built for sales teams, contact centres and voice-AI agents.

SIP trunking

Connect your Japan number over UDP or TCP with digest login. Audio is G.711 μ-law or A-law.

Call API

One request places a call and streams its audio to your WebSocket, with call status sent to your webhook.

Agent platform guides

Step-by-step setup for Vapi, Retell, ElevenLabs, LiveKit, Pipecat, Ultravox, Asterisk, FreeSWITCH, 3CX and Kamailio.

Call logs and recordings

Every Japan call on record in the console, with answer rates per number.

AI noise cancellation

Clearer audio on calls from noisy rooms and call floors.

Verified caller ID

Calls can only show a number you own, so your +81 caller ID can't be spoofed through your account.

FAQ

Japan virtual number questions

What is a Japan virtual phone number?

A Japan virtual phone number is a cloud +81 number that works over the internet instead of a SIM or landline. You make and receive Japan calls from anywhere, and your team, IVR or voice-AI agent answers them through Vonyx.

Can I get a Japan number without an office in Japan?

Yes. Vonyx provisions Japan numbers remotely, so you don't need a local office or hardware. Some number types in Japan need address or business documents, and our team tells you which before you buy.

Will my Japan number be marked as spam?

Vonyx keeps numbers clean by design: each number has one owner, every account is verified before its first call, and calls can only show a number you own. Spam labels are set by carriers and apps, so no provider can promise a number is never flagged, but these rules remove the usual reasons a number gets flagged.

Can I use a Japan number with my dialer or voice-AI platform?

Yes. Point any SIP client at a Vonyx SIP trunk (UDP or TCP, username and password), with step-by-step guides for Vapi, Retell, ElevenLabs, LiveKit, Pipecat, Asterisk and 3CX. Or skip SIP and use the Call API, which streams call audio to your WebSocket.

Which plans can I get a Japan number on?

Vonyx Standard, for clean numbers and SIP trunking, or Vonyx.HD, which adds 16 kHz wideband audio for voice AI. You see Japan rates in the console before you buy, or our team can send a quote.

How quickly can I start calling with a Japan number?

Once your account passes KYC, you can buy a number in the console and route it to your SIP trunk straight away. Number types that need extra documents in Japan take longer, and we tell you up front.

Coverage

Virtual numbers in 70 countries

Ready to call Japan?

Get a +81 number in the console and start calling once your account is verified.

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