Enter a number in E.164 format (for example +441952612345)
Area code +81 2399 covers Japan and surrounding areas.
Known carrier for +81 2399: "NTT".
Geolocation for this prefix: (36.5748441, 139.2394179).
Use this area-code page to access location, carrier, and prefix info for partial phone numbers.
Country: 🇯🇵 JP
Country Code: +81
Carrier: NTT
Prefix: 2399
Location: Japan
Coords: 36.5748441, 139.2394179
Area Code Page: +81 2399
Comments: Disabled for area-code pages
Example: +81 2399 *** ***
If you have a full number, use the search box above to view the number-specific page.
+81 2399 is an area code/prefix that appears to be associated with Japan. It may be assigned to multiple phone numbers within that region.
Yes — use Ringbat's number search to look up a full number. This area-code page helps when only part of a number is known.
Carrier information for this prefix: NTT. In some cases multiple carriers may use similar prefixes.
A reverse phone lookup helps you identify the person or business behind an unknown number.
Phone lookups are a smart way to screen unknown calls and protect yourself.
Contribute to our community by reporting spam or scam calls.
Verify a caller’s identity to prevent fraud or unwanted solicitations.
Reverse lookup works across multiple countries to provide accurate info.
Coordinates and area codes can reveal where the number is based.
Copyright © 2025 Ringbat. International Reverse Phone Number Lookup. Legal / DMCA