Who Called Me from +81 800? Japanese 0800 Numbers Explained - Toll-free (Free Call, receiver pays)
A number starting with +81 800 is the international format of a Japanese 0800 toll-free (Free Call) number. Like 0120, the receiving company pays for the call; the 0800 range was introduced as 0120 numbers ran short.
Converting +81 800 to 0800
+81 800-123-45670800-123-4567
Just replace +81 with 0 to get the local Japanese format.
About this number range
- Number type
- Toll-free (Free Call, receiver pays)
- Region
- Nationwide
- Digits (domestic format)
- 11 digits
Who typically calls from this range?
Calls from 0800 include corporate support desks as well as telemarketing such as insurance-review and inspection-pretext pitches. The range is easy to confuse with 080 mobile numbers: an 11-digit number starting 080-0 is actually an 0800 toll-free number. Verify unknown callers before responding.
Before you call back
0800 is a domestic receiver-pays service, free for callers inside Japan. From overseas, check the company's official website for an international contact number instead.
Paste a number to check
The number is processed entirely on your device and is never sent to any server.
Frequently asked questions
Is +81 800 a mobile number?
No. +81 800 (domestic 0800) is a receiver-pays toll-free range, distinct from +81 80 (domestic 080) mobile numbers. An 11-digit number starting 080-0 is the 0800 toll-free range.
What is the difference between 0800 and 0120?
Both are receiver-pays toll-free ranges. 0800 was added later because 0120 numbers were running out; for callers they work essentially the same way.
Sources (official)
Primary sources verified: 2026-08-02
Related tools and guides
Number directory and spam reports for 0800 (Free Call)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.