Enter a number in E.164 format (for example +441952612345)
Our database confirms that +81 3940 is assigned to Tokyo.
Known carrier for +81 3940: "NTT".
Ringbat database places +81 3940 at coordinates (35.6768601, 139.7638947).
Partial number searches match area-code pages like this — helpful if only the start of a number is known.
Country: 🇯🇵 JP
Country Code: +81
Carrier: NTT
Prefix: 3940
Location: Tokyo
Coords: 35.6768601, 139.7638947
Area Code Page: +81 3940
Comments: Disabled for area-code pages
Example: +81 3940 *** ***
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+81 3940 is an area code/prefix that appears to be associated with Tokyo. It may be assigned to multiple phone numbers within that region.
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Carrier information for this prefix: NTT. In some cases multiple carriers may use similar prefixes.
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