Common Signal errors
- “Too many attempts”
- Registration Lock prompt
- Captcha loop
Each has a fix in the Signal verification guide.
Signal verification+81
Japan phone number for Signal (+81)
Yes — a real Japan mobile number (+81) can receive the Signal 6-digit code by SMS or voice call. One Signal code on a +81 number costs $1.55; a +81 number you keep costs from $1.80/month on the 12-month plan.
- 6-digit code by SMS or voice call to +81
- 32nd cheapest of 32 countries in Asia for Signal
- Real mobile line — not VoIP
- Works with Signal — 7-day replacement guarantee
Pricing
From$1.80/mo
on the 12-month plan
Choose 1, 3, 6 or 12 months at checkout — every term price is shown there.
See plans & buySignal code (single-use)$1.55
Every term (1, 3, 6 or 12 months): unlimited incoming SMS & calls, 500 SMS + 1,000 minutes out every month. Renew as long as you want. Buy with crypto — no wallet top-up needed.
Example numbers
- +81 XX 1672 31XXin stock
- +81 XX 1016 06XXin stock
- +81 XX 1521 86XXin stock
Digits are masked. The full number is shown once it is assigned to your account.
Key facts
Signal with Japan numbers: at a glance
- Signal code (single-use)
- $1.55 per code
- Price rank
- Cheaper than 1 of 200 countries for Signal
- Rank in Asia
- 32nd cheapest of 32 countries in Asia
- Code format
- 6-digit code
- Delivered by
- SMS or voice call
- Number format
- +81 · 090 xxxx xxxx → +81 90 xxxx xxxx
- Mobile numbers
- +81 · 10 digits · starts with 70, 80, 90
- Stock
- 36 numbers in stock
- Among Japan apps
- 72nd cheapest of 113 apps
- Local time
- UTC+9
Cheapest countries for Signal right now: Lesotho $0.15 · Malaysia $0.15 · Mauritania $0.15.
Prices as of October 15, 2026; stock changes through the day. Full list: OTP prices by app and country.
Compare nearby countries for Signal
At $1.55, Japan is the 32nd cheapest of 32 countries in Asia for Signal. Malaysia (+60) is the cheapest nearby at $0.15.
| Country | Dial code | Signal code | vs Japan | Stock |
|---|---|---|---|---|
| India | +91 | $0.22 | −$1.33 | In stock |
| Afghanistan | +93 | $0.55 | −$1.00 | In stock |
| Bangladesh | +880 | $0.71 | −$0.84 | In stock |
| Bhutan | +975 | $0.36 | −$1.19 | In stock |
| Brunei | +673 | $0.46 | −$1.09 | In stock |
| Cambodia | +855 | $0.47 | −$1.08 | In stock |
| China | +86 | $1.09 | −$0.46 | In stock |
| Hong Kong | +852 | $1.09 | −$0.46 | In stock |
Step by step
How to verify Signal with a Japan number
One Signal code on a +81 number costs $1.55 — the 32nd cheapest of 32 countries in Asia. Full Signal walkthrough and troubleshooting: Signal verification guide.
Get your Japan number
Sign up with an email, top up with USDT or USDC and pick Japan: a plan to keep the +81 number, or a single-use Signal OTP number ($1.55).
Open Signal
Go to the registration screen right after installing Signal.
Enter the +81 number
Select Japan (+81) in Signal's country picker, then paste the digits your dashboard shows after +81 into Signal.
Enter the Signal code
Signal sends a 6-digit code by SMS or voice call. SMS codes appear in your PhoneBorn dashboard next to the +81 number; type the code into Signal to finish.
Tips for Japan numbers
- After +81, Japan mobile numbers begin with 70, 80, 90 — a quick check that you pasted the whole number.
- Only need one code and the country doesn't matter? Malaysia costs $0.15 for Signal, against $1.55 here.
- Set “Who can find me by number” to Nobody and use a Signal username instead.
Why use a Japan number for Signal?
Day-to-day life in Japan runs on LINE, X and Instagram, yet Signal remains the app for private conversations without exposing your personal number. A +81 number keeps that account tied to the country without using your personal SIM.
Students and working holiday: People on study or working holiday visas in Tokyo and Osaka use a Japanese number for part-time job applications and apartment hunting.
Signal identities are tied to the number; losing it means losing the registration.
Local context
Japan at a glance for Signal users
- Capital
- Tokyo
- Population
- 124 million
- Languages
- Japanese
- Currency
- Japanese yen (JPY)
Apps people use most in Japan
- LINE
- X
- YouTube
- PayPay
- Rakuten
- Mercari
- Amazon
| App | OTP price | vs Signal | Guide |
|---|---|---|---|
| Google / Gmail | $1.79 | +$0.24 | Google / Gmail guide |
| $1.90 | +$0.35 | WhatsApp guide | |
| Telegram | $2.14 | +$0.59 | Telegram guide |
| $1.67 | +$0.12 | Instagram guide | |
| $1.55 | same | Facebook guide | |
| ChatGPT | $2.14 | +$0.59 | ChatGPT guide |
| TikTok | $1.55 | same | TikTok guide |
| Discord | $1.43 | −$0.12 | Discord guide |
| X (Twitter) | $1.67 | +$0.12 | X (Twitter) guide |
| Binance | $2.62 | +$1.07 | Binance guide |
| Amazon | $1.67 | +$0.12 | Amazon guide |
| Apple ID | $1.90 | +$0.35 | Apple ID guide |
Works with Signal — backed by our 7-day replacement guarantee
If your Japan number doesn't work for Signal or any other app you need within 7 days of purchase, replace it with a new Japan number for free — instantly from your dashboard, up to 3 times, no questions asked.
Never used it (no SMS or call)? Take a full refund to your PhoneBorn balance within 7 days instead.
FAQ
Japan number for Signal: FAQ
How much is a Signal code with a Japan number?
A single-use Signal code on a Japan (+81) number costs $1.55 (as of October 15, 2026). That makes a Japan number the 32nd cheapest of 32 countries in Asia for Signal, and cheaper than 1 of the 200 countries where Signal codes are sold. The cheapest option nearby is Malaysia (+60) at $0.15. Among the 113 apps we sell Japan codes for, Signal is the 72nd cheapest.
Can I use a Japan number for Signal?
Yes. Signal expects a real mobile number, and every Japan (+81) number we sell is one. If Signal turns yours down, the 7-day replacement guarantee swaps it for another Japan number; a single Signal code that never arrives is refunded to your PhoneBorn balance.
OTP number or phone-number plan for Signal in Japan?
One Signal code on a Japan number costs $1.55 and covers a single Signal check; a plan (from $1.80/month on the 12-month plan) keeps the +81 number and receives Signal codes as often as Signal asks. Signal sends its 6-digit code by SMS or voice call: a plan receives SMS and incoming calls, an OTP number the SMS code only.
General Signal questions — code formats, errors, re-verification — are answered in the Signal verification guide.
Verify Signal with a +81 number today.
36 Japan numbers in stock · Signal code $1.55. Pay with USDT or USDC, email sign-up, no ID.