Enter a number in E.164 format (for example +441952612345)
Our database confirms that +66 1603 is assigned to Bangkok/Nonthaburi/Pathum Thani/Samut Prakan.
Known carrier for +66 1603: "National Telecom (NT)".
Geolocation for this prefix: —.
Ringbat creates area-code pages to provide details when only part of a number is available.
Country: 🇹🇭 TH
Country Code: +66
Carrier: National Telecom (NT)
Prefix: 1603
Location: Bangkok/Nonthaburi/Pathum Thani/Samut Prakan
Area Code Page: +66 1603
Comments: Disabled for area-code pages
Example: +66 1603 *** ***
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🛰️ Coordinates Unavailable — No map data for this area code.
+66 1603 is an area code/prefix that appears to be associated with Bangkok/Nonthaburi/Pathum Thani/Samut Prakan. 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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