|Updated 17 July 2007||By Country Code||By Country Name||Other WTNG pages||Acknowledgements|
Area Code: 1-3 digits (see note below) Subscriber Number: 6-7 digits Trunk Prefix: 0 International Prefix: 001Area Codes generally 1-2 digits, but some 3-digit codes for mobile services.
That is, mobile numbers of international form +66 xxxxxxxx became +66 8 xxxxxxxx. Within Thailand, mobile number dialling changed from 0xxxxxxxx to 08xxxxxxxx.
CAT Telecom announcement, "Overseas Call to mobile number in Thailand"
(report courtesy Earle Martin)
An example within Bangkok: the former 7-digit subscriber number (xxx xxxx) must now be dialled as 02xxx xxxx for local calling.
Likewise, outside Bangkok, a number such as (035) xxx.xxx would now be considered 035 xxx xxx, the entire 9 digits dialled within Thailand regardless of whether the call is local or long distance.
There was no associated change to the former area code digits or subscriber numbers. The new national subscriber numbers would mean that the trunk prefix and area codes as such will cease to exist in practice.
From outside Thailand, there is no change to dialling existing numbers. The format remains country code +66 followed by 8 digits (the leading 0 digit is only dialled within Thailand).
A one-month permissive dialling period was put into effect, where old and new dialling formats would be accepted until early August 2001. However, there will be no recorded warning message until the permissive period ends.
New mobile numbers would be assigned to a new 09 prefix. The existing mobile numbers beginning with 01 would remain for now (although these must be dialled in the 9-digit format), but "could not be resold". Reports suggested the existing 01 prefix mobile numbers could change to 09 prefix over the next "several months".
The number inquiries short code will be changed from 13 to 1133.
The number for faults reports will be changed from 17 to 1177.
TOT opened a call centre to provide numbering change information. The short code for this is 1100 (no charge within Thailand).
Official TOT page on new dialling: http://www.tot.or.th/new_numbering/.
(with update report courtesy Peerasak Arunsakul)