Enter a number in E.164 format (for example +441952612345)
The prefix +81 3644 serves the region of Tokyo.
Carrier for this prefix: "NTT".
Geolocation for this prefix: (35.6768601, 139.7638947).
Searching a number prefix can reveal carrier and location info from Ringbat's database.
Country: 🇯🇵 JP
Country Code: +81
Carrier: NTT
Prefix: 3644
Location: Tokyo
Coords: 35.6768601, 139.7638947
Area Code Page: +81 3644
Comments: Disabled for area-code pages
Example: +81 3644 *** ***
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+81 3644 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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