Thailand (country code +66)
Communication of 2.VI.2006:
The National Telecommunications Commission (NTC), Bangkok, announces the following numbering plan
for Thailand:
a) Overview:
The minimum number length (excluding country code) is eight (8) digits
The maximum number length (excluding country code) is nine (9) digits
b) Detail of numbering scheme:
(1) (2) (3) (4)
NDC (National N(S)N Number Length
Destination Code)
or leading digits of Minimum Usage of E.164
Maximum Additional Information
N(S)N (National number
(Significant) length
length
Number)
21 8 8 Geographic Area code for Bangkok and vicinity:
number for fixed Nonthaburi, Pathum Thani and Samut
telephony services Prakarn
22 8 8 Geographic Area code for Bangkok and vicinity:
number for fixed Nonthaburi, Pathum Thani and Samut
telephony services Prakarn
23 8 8 Geographic Area code for Bangkok and vicinity:
number for fixed Nonthaburi, Pathum Thani and Samut
telephony services Prakarn
24 8 8 Geographic Area code for Bangkok and vicinity:
number for fixed Nonthaburi, Pathum Thani and Samut
telephony services Prakarn
25 8 8 Geographic Area code for Bangkok and vicinity:
number for fixed Nonthaburi, Pathum Thani and Samut
telephony services Prakarn
26 8 8 Geographic Area code for Bangkok and vicinity:
number for fixed Nonthaburi, Pathum Thani and Samut
telephony services Prakarn
27 8 8 Geographic Area code for Bangkok and vicinity:
number for fixed Nonthaburi, Pathum Thani and Samut
telephony services Prakarn
28 8 8 Geographic Area code for Bangkok and vicinity:
number for fixed Nonthaburi, Pathum Thani and Samut
telephony services Prakarn
29 8 8 Geographic Area code for Bangkok and vicinity:
number for fixed Nonthaburi, Pathum Thani and Samut
telephony services Prakarn
32 8 8 Geographic Area code for central region: Ratchaburi
number for fixed and Phetchaburi, Prachuap and Khiri Khan
telephony services
34 8 8 Geographic Area code for central region: Nakhon
number for fixed Pathom, Samut Sakhon, Kanchanaburi
telephony services and Samut Songkhram
(1) (2) (3) (4)
NDC (National N(S)N Number Length
Destination Code) Usage of E.164
or leading digits of Minimum Additional Information
Maximum number
N(S)N (National length
(Significant) length
Number)
35 8 8 Geographic Area code for central region: Pra Nakhon
number for fixed Sri Ayutthaya, Suphan Buri and Ang
telephony services Thong
36 8 8 Geographic Area code for central region: Saraburi, Lop
number for fixed Buri and Sing Buri
telephony services
37 8 8 Geographic Area code for Bangkok and vicinity:
number for fixed Nonthaburi, Pathum Thani and Samut
telephony services Prakarn
38 8 8 Geographic Area code for eastern region: Prachin Buri,
number for fixed Sa Kaeo and Nakhon Nayok
telephony services
39 8 8 Geographic Area code for eastern region: Chanthaburi
number for fixed and Trat
telephony services
42 8 8 Geographic Area code for north-eastern region: Udon
number for fixed Thani, Nong Bua Lamphu, Nong Khai,
telephony services Nakhon Phanom, Mukdahan, Sakon
Nakhon and Loei
43 8 8 Geographic Area code for Khon Kean, Roi Et, Maha
number for fixed Sarakham and Kalasin
telephony services
44 8 8 Geographic Area code for north-eastern region:
number for fixed Nakhon Ratchasima, Surin, Buriram and
telephony services Chaiyaphum
45 8 8 Geographic Area code for north-eastern region: Ubon
number for fixed Ratchathani, Amnat Charoen, Si Sa Ket
telephony services and Yasothon
53 8 8 Geographic Area code for northern region: Chiang Mai,
number for fixed Lamphun, Mae Hong Son and Chiang Rai
telephony services
54 8 8 Geographic Area code for northern region: Lampang,
number for fixed Payao, Phrae and Nan
telephony services
55 8 8 Geographic Area code for northern region:
number for fixed Phitsanulok, Uttaradit, Tak, Sukhothai and
telephony services Kamphaeng Phet
56 8 8 Geographic Area code for northern region: Nakhon
number for fixed Sawan, Chainat, Uthai Thani, Phichit and
telephony services Phetchabun
73 8 8 Geographic Area code for southern region: Yala,
number for fixed Pattani and Narathiwat
telephony services
(1) (2) (3) (4)
NDC (National N(S)N Number Length
Destination Code) Usage of E.164
or leading digits of Minimum Additional Information
Maximum number
N(S)N (National length
(Significant) length
Number)
74 8 8 Geographic Area code for southern region: Songkla,
number for fixed Phattalung and Satun
telephony services
75 8 8 Geographic Area code for southern region: Trang,
number for fixed Nakhon Sri Thammarat and Krabi
telephony services
76 8 8 Geographic Area code for southern region: Phuket and
number for fixed Phang-nga
telephony services
77 8 8 Geographic Area code for southern region: Surat
number for fixed Thani, Chumpon and Ranong
telephony services
81 9 9 Non-geographic Nationwide
number for mobile
telephony services
83 9 9 Non-geographic Nationwide
number for mobile
telephony services
84 9 9 Non-geographic Nationwide
number for mobile
telephony services
85 9 9 Non-geographic Nationwide
number for mobile
telephony services
86 9 9 Non-geographic Nationwide
number for mobile
telephony services
87 9 9 Non-geographic Nationwide
number for mobile
telephony services
89 9 9 Non-geographic Nationwide
number for mobile
telephony services
60 9 9 Non-geographic Nationwide
number for Voice
over Internet
Protocol
Contact:
National Telecommunications Commission (NTC)
87 Soi Sailom, Phaholyothin Road
Phayathai
BANGKOK 10400
Thailand
Tel: +66 2 271 0151 – 60 (ext. 902)
Fax: +66 2 271 3518
