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Our database confirms that +66 3657 is assigned to Lop Buri/Saraburi/Sing Buri.
Known carrier for +66 3657: "National Telecom (NT)".
Geolocation for this prefix: —.
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Country: 🇹🇭 TH
Country Code: +66
Carrier: National Telecom (NT)
Prefix: 3657
Location: Lop Buri/Saraburi/Sing Buri
Area Code Page: +66 3657
Comments: Disabled for area-code pages
Example: +66 3657 *** ***
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+66 3657 is an area code/prefix that appears to be associated with Lop Buri/Saraburi/Sing Buri. It may be assigned to multiple phone numbers within that region.
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Carrier information for this prefix: National Telecom (NT). In some cases multiple carriers may use similar prefixes.
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