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According to Ringbat data, +66 3991 operates within Chanthaburi/Trat and nearby areas.
Our database lists the carrier as "National Telecom (NT)".
Ringbat database places +66 3991 at coordinates —.
Use this area-code page to access location, carrier, and prefix info for partial phone numbers.
Country: 🇹🇭 TH
Country Code: +66
Carrier: National Telecom (NT)
Prefix: 3991
Location: Chanthaburi/Trat
Area Code Page: +66 3991
Comments: Disabled for area-code pages
Example: +66 3991 *** ***
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🛰️ Coordinates Unavailable — No map data for this area code.
+66 3991 is an area code/prefix that appears to be associated with Chanthaburi/Trat. 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: National Telecom (NT). In some cases multiple carriers may use similar prefixes.
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