Who Called Me from +81 6? Japanese 06 Numbers Explained - Landline (area code)
A number starting with +81 6 is the international format of an Osaka 06 landline. +81 6-1234-5678 is the same number as 06-1234-5678 dialed inside Japan, assigned to landlines centered on Osaka City.
Converting +81 6 to 06
+81 6-1234-567806-1234-5678
Just replace +81 with 0 to get the local Japanese format.
About this number range
- Number type
- Landline (area code)
- Region
- Osaka (mainly Osaka City)
- Digits (domestic format)
- 10 digits
Who typically calls from this range?
Calls from 06 numbers often come from businesses and retailers in Osaka. Legitimate business calls are common, but nuisance calls such as electricity-switching pitches and fictitious billing are also reported from this range. Look up an unknown +81 6 number before responding.
Before you call back
Calling +81 6 back from outside Japan incurs international call charges. From inside Japan, replace +81 with 0 and dial the 10-digit 06 number.
Paste a number to check
The number is processed entirely on your device and is never sent to any server.
Frequently asked questions
Where is a +81 6 call from?
06 is the landline area code for Osaka, centered on Osaka City. Callers are often businesses and retailers.
Are +81 6 and +81 60 the same?
No. +81 6 (domestic 06) is a 10-digit Osaka landline, while +81 60 (domestic 060) is the new 11-digit mobile range (not yet in service as of August 2026). Since Japanese landline city codes never continue with 0, +81 6 followed by 0 means the 060 range.
Sources (official)
Primary sources verified: 2026-08-02
Related tools and guides
Number directory and spam reports for 06 (Osaka)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.