Who Called Me from +81 70? Japanese 070 Numbers Explained - Mobile phone
A number starting with +81 70 is the international format of a Japanese 070 mobile number. The 070 range was originally assigned to PHS handsets and is now used for regular mobile phones.
Converting +81 70 to 070
+81 70-1234-5678070-1234-5678
Just replace +81 with 0 to get the local Japanese format.
About this number range
- Number type
- Mobile phone
- Region
- Nationwide (no regional information)
- Digits (domestic format)
- 11 digits
Who typically calls from this range?
070 numbers are regular mobile numbers used nationwide, just like 090 and 080. Because many 070 numbers were assigned relatively recently, they also appear in reports of SMS phishing and one-ring scams. Verify unknown +81 70 callers before responding.
Before you call back
Calling +81 70 back from outside Japan incurs international call charges. From inside Japan, replace +81 with 0 and dial the 070 number.
Paste a number to check
The number is processed entirely on your device and is never sent to any server.
Frequently asked questions
Is +81 70 a PHS (Personal Handy-phone System) number?
The 070 range was originally for PHS, but it is now also assigned to regular mobile phones, so 070 alone no longer tells you the device type.
How do I restore a +81 70 number to the domestic 070 format?
Change +81 back to 0 to get 070-1234-5678. 070 is an 11-digit mobile range just like 090 and 080, so the conversion works exactly the same way.
Sources (official)
Primary sources verified: 2026-08-02
Related tools and guides
Number directory and spam reports for 070 (Mobile)Other +81 prefixes
Disclaimer
A number prefix only tells you the type of number - it does not identify the caller or guarantee that a call is safe. Caller IDs can also be spoofed.
The number you enter is processed entirely on your device and is never sent to any server.