How many digits does a phone number in Singapore have?

Mobile numbers have 8 national digits. Fixed line numbers have 8 national digits. That is the national number, without the country code +65.

What is the country code for Singapore?

+65. From abroad, dial your own exit code, then 65, then the national number.

Which prefixes are mobile numbers in Singapore?

Mobile numbers start with 8 or 9 in national form; the mobile regular expression on this page gives the exact ranges (example: 8123 4567). The carrier table shows which prefix blocks were allocated to which operator.

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

Yes. Singapore 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.

+65

Singapore phone numbers

8123 4567

International +65 8123 4567, E.164 +6581234567

The numbering plan of Singapore: 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: +65
Exit code: —
Trunk prefix: none
Mobile digits: 8
Fixed-line digits: 8
Number portability: yes
Carriers on record: 10

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

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

Mobile numbers start with:89

Mobile prefix blocks by operator

SingTel	183
M1	144
StarHub	101
Simba	66
myrepublic	5
5 other operators	13

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 Singapore.

+65

country code

8123

network code

4567

subscriber number

Country	Singapore numbering plan
Line type	Mobile
Carrier the block was allocated to	SingTel
E.164	+6581234567
International	+65 8123 4567
National	8123 4567
RFC 3966	tel:+65-8123-4567

Source: National numbering plan: Singapore (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 +65, no trunk prefix); nothing leaves your browser.

^(?:80[1-9]\d{5}|(?:8[1-9]|9[0-8])\d{6}|662[0-24-9]\d{4}|6(?:[0-578]\d|6[013-57-9]|9[0-35-9])\d{5})$

Numbers to test, one per line

Number	National digits	Matches
8123 4567	81234567	Mobile
6123 4567	61234567	Fixed line
1800 123 4567	18001234567	not in the ticked types
3123 4567	31234567	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. 512 blocks held by 10 operators are on record.

Type the first digits of a number in national form.

In full

Cheat sheet

Country code	+65
International exit code (dialling out)	— (the plan also allows 0[0-3]\d)
Trunk prefix (national dialling)	none
Mobile number length (national digits)	8
Fixed-line number length (national digits)	8
E.164 example	+6581234567
RFC 3966 (tel: URI)	tel:+65-8123-4567
Mobile number portability	Yes

Line types and their regular expressions

Match each pattern against the national significant number: digits only, without the trunk prefix and without +65. The patterns follow the national numbering plan and are anchored here.

Line type	National digits	Example, national	Example, E.164
Mobile	8	8123 4567	+6581234567
Fixed line	8	6123 4567	+6561234567
Toll-free	10 or 11	1800 123 4567	+6518001234567
VoIP	8	3123 4567	+6531234567
Premium-rate	11	1900 123 4567	+6519001234567
UAN	11	7000 1234 567	+6570001234567

Mobile, 8 digits

^(?:80[1-9]\d{5}|(?:8[1-9]|9[0-8])\d{6})$

Fixed line, 8 digits

^(?:662[0-24-9]\d{4}|6(?:[0-578]\d|6[013-57-9]|9[0-35-9])\d{5})$

Toll-free, 10 or 11 digits

^(?:(?:18|8)00\d{7})$

VoIP, 8 digits

^(?:(?:3[12]\d|666)\d{5})$

Premium-rate, 11 digits

^(?:1900\d{7})$

UAN, 11 digits

^(?:7000\d{7})$

Carrier prefix blocks

The operator each prefix block was allocated to, in national form, from the published allocation records for +65. Numbers are portable, so this is the original allocation, not necessarily the carrier serving a number today.

Operator	Line type	Prefix blocks	Ranges
SingTel	Mobile	183	803, 812, 826, 828, 830–831, 834–835, 837, 840, 842–843, 845, 858, 861, 863, 865–867, 870, 873–874, 901, 903, 905, 908, 911–913, 915, 917, 920, 923, 935, 937, 939, 944, 946, 961–967, 971–973, 975, 977–978, 981–983, 986, 989, 8018–8021, 8027–8029, 8040, 8045, 8049, 8054, 8067, 8070–8071, 8082, 8084, 8090 56 more ranges 8093, 8095, 8099, 8140, 8181–8182, 8218, 8223, 8228, 8299, 8338–8339, 8360, 8381, 8385–8387, 8393, 8398–8399, 8411, 8497, 8499, 8502, 8504, 8506–8507, 8510–8511, 8515, 8518, 8522–8525, 8533–8537, 8575, 8590–8591, 8595, 8620–8622, 8640, 8646–8649, 8694–8698, 8710, 8712–8713, 8762–8764, 8773–8775, 8798–8799, 8809, 8840–8841, 8845–8846, 8869, 8876, 8905–8909, 8929, 8938–8943, 8963–8965, 8972, 8976–8977, 8982–8985, 8990, 8996–8998, 9295–9299, 9334, 9806–9807, 9888
M1	Mobile	144	804, 810, 817, 819, 821, 827, 841, 844, 846, 848, 854–855, 857, 862, 868, 871, 878, 881–882, 904, 907, 909, 919, 922, 927, 932, 934, 936, 943, 947, 968–969, 974, 976, 979, 984, 987, 8022–8023, 8025–8026, 8050–8052, 8055, 8059, 8083, 8091, 8094, 8188, 8222, 8282, 8288, 8320, 8323–8326 50 more ranges 8329, 8333, 8366, 8368, 8382–8383, 8388, 8456, 8496, 8500, 8539, 8580–8581, 8585, 8588, 8600, 8611–8614, 8630, 8641–8645, 8666, 8668, 8691–8693, 8699, 8720–8721, 8723, 8733, 8738, 8742, 8748–8753, 8766–8768, 8776–8779, 8792–8793, 8797, 8800, 8808, 8833, 8838, 8844, 8848, 8855, 8858, 8862, 8866–8868, 8877, 8890–8894, 8921–8923, 8935–8937, 8949–8952, 8991, 8995, 8999, 9889
StarHub	Mobile	101	81–82, 833, 836, 847, 849, 851–852, 856, 859–860, 872, 902, 906, 910, 914, 916, 918, 924, 938, 942, 945, 948, 985, 988, 8321–8322, 8328, 8352, 8370, 8373, 8377–8378, 8380, 8384, 8389–8392, 8394–8396, 8400, 8468, 8501, 8503, 8505, 8508–8509, 8530–8532, 8538, 8557, 8559, 8570–8572, 8658–8661, 8680–8682, 8689–8690, 8700, 8765 12 more ranges 8789–8790, 8829–8831, 8920, 8981, 9001–9009, 9199, 9237–9239, 9270–9272, 9335–9339, 9499, 9800, 9813–9814
Simba	Mobile	66	801, 806–808, 880, 883, 885, 891, 895–897, 8024, 8033–8035, 8053, 8056–8058, 8092, 8096, 8098, 8274, 8761, 8796, 8810, 8819, 8824–8825, 8827, 8847, 8849, 8865, 8895–8904, 8924–8928, 8930–8934, 8944–8948, 8980, 8986–8989, 8992–8994
myrepublic	Mobile	5	8048, 8754–8755, 8769, 8791
red one	Mobile	5	8756–8760
vivohub	Mobile	5	8770–8772, 8842–8843
CUniq	Mobile	1	8097
Changi Travel Services Pte Ltd	Mobile	1	8032
Circle.Life	Mobile	1	8971

Questions developers ask

How many digits does a phone number in Singapore have?: Mobile numbers have 8 national digits. Fixed line numbers have 8 national digits. That is the national number, without the country code +65.
What is the country code for Singapore?: +65. From abroad, dial your own exit code, then 65, then the national number.
Which prefixes are mobile numbers in Singapore?: Mobile numbers start with 8 or 9 in national form; the mobile regular expression on this page gives the exact ranges (example: 8123 4567). The carrier table shows which prefix blocks were allocated to which operator.
Can a mobile number in Singapore be ported to another carrier?: Yes. Singapore 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.