How many digits does a phone number in Thailand have?

Mobile numbers have 9 national digits. Fixed line numbers have 8 national digits. That is the national number, without the country code +66 and without the trunk prefix 0.

What is the country code for Thailand?

+66. From abroad, dial your own exit code, then 66, then the national number without its trunk prefix 0.

Which prefixes are mobile numbers in Thailand?

Mobile numbers start with 01, 06, 08 or 09 in national form; the mobile regular expression on this page gives the exact ranges (example: 081 234 5678). The carrier table shows which prefix blocks were allocated to which operator.

Can a mobile number in Thailand be ported to another carrier?

Yes. Thailand has mobile number portability, so a prefix tells you the carrier a number was originally allocated to, not necessarily the one serving it today. Only a live carrier lookup (an HLR or MNP query) answers that.

+66

Thailand phone numbers

081 234 5678

International +66 81 234 5678, E.164 +66812345678

The numbering plan of Thailand: formats, lengths, the regular expression for each line type and the prefix blocks allocated to each carrier, as ITU publishes it. A pattern says what a number looks like and where it was allocated; whether it is in service, and who serves it today, is a different question (below).

At a glance

Country code: +66
Exit code: —
Trunk prefix: 0
Mobile digits: 9
Fixed-line digits: 8
Number portability: yes
Carriers on record: 5

How to dial a number in Thailand from anywhere: the dialling helper.

Line types in the plan:Mobile Fixed line Toll-free VoIP Premium-rate

Mobile numbers start with:01060809

Mobile prefix blocks by operator

AIS	243
True Move	161
DTAC	156
NT Mobile	22
Penguin SIM	1

prefix blocks allocated, from the published records; a block is a prefix at the plan's allocation length

Check a number

Valid mobile number in Thailand.

+66

country code

network code

2345678

subscriber number

Country	Thailand numbering plan
Line type	Mobile
Carrier the block was allocated to	True Move
E.164	+66812345678
International	+66 81 234 5678
National	081 234 5678
RFC 3966	tel:+66-81-234-5678

Source: National numbering plan: Thailand (ITU)

Test a pattern

Tick the line types you accept, copy the combined pattern, and paste numbers to see which range each one falls in. Numbers are reduced to their national digits first (no spaces, no +66, no trunk prefix 0); nothing leaves your browser.

^(?:(?:(?:14|[89]\d)\d\d|6(?:[1-6]\d\d|7(?:1[0-8]|2[4-7]|3[1-6])))\d{5}|(?:1[0689]|2\d|3[2-9]|4[2-5]|5[2-6]|7[3-7])\d{6})$

Numbers to test, one per line

Number	National digits	Matches
081 234 5678	812345678	Mobile
02 123 4567	21234567	Fixed line
1800 123 456	1800123456	not in the ticked types
060 123 4567	601234567	not in the ticked types

Need another country, or the pattern as code in your language? Open the regex builder.

Walk the prefixes

Type the first digits of a number in national form, or tap them: the operators holding blocks under those digits, then the block a full prefix falls in. 583 blocks held by 5 operators are on record.

Type the first digits of a number in national form.

In full

Cheat sheet

Country code	+66
International exit code (dialling out)	— (the plan also allows 00[1-9])
Trunk prefix (national dialling)	0
Mobile number length (national digits)	9
Fixed-line number length (national digits)	8
E.164 example	+66812345678
RFC 3966 (tel: URI)	tel:+66-81-234-5678
Mobile number portability	Yes

Line types and their regular expressions

Match each pattern against the national significant number: digits only, without the trunk prefix 0 and without +66. The patterns follow the national numbering plan and are anchored here.

Line type	National digits	Example, national	Example, E.164
Mobile	9	081 234 5678	+66812345678
Fixed line	8	02 123 4567	+6621234567
Toll-free	10 or 13	1800 123 456	+661800123456
VoIP	9	060 123 4567	+66601234567
Premium-rate	10	1900 123 456	+661900123456

Mobile, 9 digits

^(?:(?:(?:14|[89]\d)\d\d|6(?:[1-6]\d\d|7(?:1[0-8]|2[4-7]|3[1-6])))\d{5})$

Fixed line, 8 digits

^(?:(?:1[0689]|2\d|3[2-9]|4[2-5]|5[2-6]|7[3-7])\d{6})$

Toll-free, 10 or 13 digits

^(?:(?:001800\d|1800)\d{6})$

VoIP, 9 digits

^(?:6[08]\d{7})$

Premium-rate, 10 digits

^(?:1900\d{6})$

Carrier prefix blocks

The operator each prefix block was allocated to, in national form, from the published allocation records for +66. Numbers are portable, so this is the original allocation, not necessarily the carrier serving a number today.

Operator	Line type	Prefix blocks	Ranges
AIS	Mobile	243	067, 084, 092–093, 098, 0611–0615, 0621–0625, 0630–0631, 0636, 0649–0656, 0659, 0800–0801, 0806–0808, 0811, 0813, 0817–0819, 0821–0822, 0828, 0833, 0852, 0854, 0856–0857, 0860–0862, 0870–0872, 0878–0879, 0883–0884, 0890, 0892, 0895, 0898–0899, 0901, 0903–0904, 0908, 0913, 0916, 0979, 06102–06109, 06160–06167, 06260, 06298–06299, 06320–06328, 06357–06359, 06570–06572, 08125–08129, 08150–08152, 08292, 08326, 08348, 08359 44 more ranges 08850–08854, 08870–08874, 09075–09079, 09120, 09122–09129, 09155–09159, 09198–09199, 09515, 09530, 09900–09901, 061018–061019, 061680–061683, 062610–062613, 063555, 065730–065734, 080337, 080398, 081240–081244, 082606, 082667–082668, 082930–082932, 082994, 083145–083154, 083256–083259, 083478–083479, 083589, 088907, 088925–088929, 088996–088999, 089343, 089346–089347, 089364, 089375–089376, 089378–089379, 089381, 089394–089398, 090202–090208, 090500–090502, 090744, 095130–095132, 095149, 095200–095202, 095244–095245, 095377–095380
True Move	Mobile	161	083, 095–096, 0637–0639, 0802, 0809, 0820, 0825, 0829, 0840–0842, 0855, 0858–0859, 0863–0866, 0886, 0889, 0891, 0909–0910, 0917–0918, 0938–0941, 0970–0973, 0995–0999, 08030–08032, 08034–08039, 08123, 08135, 08146, 08261–08269, 08450, 08458, 08497–08499, 08670–08674, 08825–08829, 08855–08859, 08875–08879, 09021–09029, 09032, 09089, 09169, 09420–09423, 061010, 061012–061017, 080330–080336, 080338, 081202–081204, 081245–081249, 081417–081419, 082601–082605, 082607–082609, 088700–088702 8 more ranges 088749, 090201, 090209, 090316–090319, 090330–090333, 090885–090889, 093796–093799, 094240
DTAC	Mobile	156	066, 094, 0617–0620, 0626–0629, 0633–0634, 0804–0805, 0814–0816, 0823–0824, 0827, 0831, 0836, 0846, 0850–0851, 0853, 0868–0869, 0873–0877, 0880–0881, 0888, 0894, 0896–0897, 0900, 0906, 0911, 0914, 0920–0921, 0950, 0990–0994, 06168, 06520–06523, 06574–06577, 08130, 08134, 08139, 08328–08329, 08341, 08354–08358, 08372–08374, 08376, 08395–08396, 08430, 08440, 08451, 08459, 08540–08541, 08549, 08561, 08590–08592, 08675–08679 23 more ranges 08820–08824, 08890, 09055–09059, 09070–09074, 09108–09109, 09138–09139, 09150–09154, 09220–09224, 09510–09512, 09950, 063296–063297, 063550, 065735–065739, 065998, 080895–080899, 081205–081209, 083599, 090548–090549, 091200–091202, 091235, 091910, 091988, 091999
NT Mobile	Mobile	22	0893, 0919, 0974–0978, 08121–08122, 09050–09054, 09189, 09736–09739, 09790–09791, 081230
Penguin SIM	Mobile	1	064

Questions developers ask

How many digits does a phone number in Thailand have?: Mobile numbers have 9 national digits. Fixed line numbers have 8 national digits. That is the national number, without the country code +66 and without the trunk prefix 0.
What is the country code for Thailand?: +66. From abroad, dial your own exit code, then 66, then the national number without its trunk prefix 0.
Which prefixes are mobile numbers in Thailand?: Mobile numbers start with 01, 06, 08 or 09 in national form; the mobile regular expression on this page gives the exact ranges (example: 081 234 5678). The carrier table shows which prefix blocks were allocated to which operator.
Can a mobile number in Thailand be ported to another carrier?: Yes. Thailand has mobile number portability, so a prefix tells you the carrier a number was originally allocated to, not necessarily the one serving it today. Only a live carrier lookup (an HLR or MNP query) answers that.