Singapore Phone Number Lookup

Verify Singapore Phone Numbers - Country Code +65

Our phone number lookup tool above instantly verifies whether a phone number belongs to Singapore by analyzing its country code and number format. Singapore phone numbers use the country code +65 and follow an 8 to 12 digits national format.

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Yellow Pages for people (see the Find A Person link above the search box on the Yellow Pages site) and businesses. Includes map links. In English and Chinese.

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Calling from Singapore to the United States

To call United States from Singapore, follow this exact dialing sequence:

• 001 - Singapore's international access code
• 1 - United States country code
• Area Code - Specific U.S. area code
• 7-digit number - The local phone number

Example: To call (312) 555-0123 from Singapore, dial: 001 1 312 555 0123

Singapore National Numbering Plan (Country Code +65)

1. Introduction

The National Numbering Plan provides a set of rules and guidelines for the use and assignment of numbers to telephone services delivered over the Public Switched Telephone Network (PSTN), Radio Network and the Internet or other Internet Protocol (IP) based network. The Plan also describes the assignment of numbers to international services, trunk service, emergency services and special services such as voice mail and Intelligent Network (IN) services.

There is only one numbering area in Singapore and the area or trunk codes are not used. The PSTN, Radio Network, IP Telephony (IPT) and User-Centric Data-Only (UCDO) services share the same numbering plan, which is a uniform 8-digit numbering plan.

2. Structure of Singapore Telephone Numbers

The National Numbering Plan is purely numeric. The national numbers for the PSTN, Radio Network, IP Telephony (IPT) and User-Centric Data-Only (UCDO) services have a total length of 8 digits.

The structure of Singapore's Telephone number follows the ITU-T Recommendation E.164 with the exception of Trunk Code since there is only one numbering area in Singapore. Therefore, in the context of Singapore's networks, a subscriber number is also known as the national number.

3. Categorization of Numbers by the First Digit

The present numbering scheme provides a theoretical capacity of 100 million numbers. Numbers are categorised into various services according to the first digit. The designation of numbers is such that the first digit of the number indicates the type of services offered by that number.

4. Level '0' Short Codes

Numbers beginning with the digit '0' are reserved for international services such as prefixes for International Direct Dial (IDD) service, Subscriber Trunk Dial (STD) service to Malaysia and Border Town Call service to Indonesia. The length of these prefixes is standardised at three digits.

Eligibility Criteria

Only Facilities-Based Operator (FBO) licensees that have committed an overall investment of no less than S$150 million in infrastructure, over the first 3 years from the date of licensing, are eligible for the allocation of 3-digit access codes. The investment shall include international connectivity and capacity that will expand the overall global international reach from Singapore.

Restrictions

Each eligible FBO licensee is restricted to one '00X' code (subject to availability) and six '0XX' codes. Additional Level '0' short code requirements beyond assigned limit may be met by 4-digit access codes subject to IMDA's approval.

5. Level '1' Short Codes

Numbers beginning with the digit '1' are reserved for special services which includes calls for operator assistance, service enquiry, machine-to-machine ("M2M"), Internet dial-up, voice information, IN services and IDD services. Their length ranges from four to five digits.

Eligibility Criteria

Generally, only FBO licensees are eligible for level '1' short codes. Exceptions are:

• Service-Based Operator (SBO) (Individual) licensees providing M2M services are eligible for '144XX' access code.
• SBO (Individual) licensees providing International Simple Resale (ISR) service (excluding solely wholesale service) are eligible for '15XX' access code.
• SBO (Individual) licensees providing Public Internet Access service are eligible for '17XX' access codes.

M2M Services Application Charges

• FBO licensees may apply for up to the 1st three M2M access codes without charge. For each subsequent M2M access code after the third, a fee of $10,000 per M2M access code will be levied.
• SBO (Individual) licensees may apply for up to the 1st two M2M access codes without charge. For each subsequent M2M access code after the second, a fee of $10,000 per M2M access code will be levied.

Category II Access Codes (Universally Shared)

All licensees must share the following Category II access codes:

• '000' international dial direct (IDD) access code
• '1800' toll-free services access code
• '1900' premium rate services access code
• '100' directory enquiry services access code
• '19XX' internal network test / routing access code

6. Level '3' Numbers

Numbers beginning with the digit '3' are reserved for use for IP Telephony (IPT) service and User-Centric Data-Only (UCDO) service. The length of these numbers is standardised at eight digits.

Services

• IPT Service: A form of VoIP that requires telephone or E.164 numbers. This service allows a user to make and receive voice, data and video calls with the same telephone number in any domestic or overseas location where Internet access is available.
• UCDO Service: Data exchange that requires interaction with users. This service generally relies on an all-IP network and does not use the traditional voice circuits of the telecoms networks.

Eligibility

FBO licensees and SBO (Individual) licensees licensed to offer IPT service and UCDO service are eligible for level '3' numbers.

Allocation Criteria

Operators may request for level '3' numbers through administrative allocation when their number utilisation of existing allocated numbers is more than or equals to 80%. Number levels (i.e. in blocks of 10,000) will generally be allocated in a sequential manner.

Operators shall quarantine recovered level '3' numbers for at least 3 months before making them available to the next user.

7. Level '6' Numbers

Numbers beginning with the digit '6' are reserved for use for PSTN service and IP Telephony (IPT) service. The length of these numbers is standardised at eight digits.

Services

• PSTN services include Direct Exchange Line (DEL), Direct Inward Dialling (DID), Direct Dialling Inwards (DDI) for ISDN and Internet access dial-up
• IPT service as described above

Eligibility

FBO licensees offering domestic telephony services including Public Switched Telephone Services (PSTS), Public Switched Integrated Services Digital Network Services, are eligible for level '6' numbers. FBO licensees offering IPT service are also eligible provided that they are able to meet the licensing obligations imposed by IMDA.

Allocation Criteria

Operators may approach IMDA for assignment of DEL numbers to their exchanges when an exchange has used up 80% of the existing allocated DEL numbers. For DID and Direct Dialling Inward (DDI) numbers, the minimum utilisation threshold is set at 80% per exchange.

8. Level '8' and '9' Numbers

Numbers beginning with the digit '8' and '9' are reserved for eight-digit Radio Network numbers. In addition, numbers beginning with the digits '99' are reserved for three-digit emergency services.

Emergency Services

'99X' numbers are allocated for emergency services such as the Police, fire brigade and ambulance. For example, '999' is assigned to the Police while '995' is assigned for fire/ambulance services.

Radio Network Services

Radio Network services include Public Cellular Mobile Telephone Services (PCMTS), Public Radio Paging Services (PRPS) and Public Trunked Radio Services (PTRS) with PSTN interconnect services.

Eligibility

FBO licensees and SBO (Individual) licensees licensed as Mobile Virtual Network Operators (MVNO) offering Radio Network services including PCMTS, PRPS and PTRS are eligible for Radio Network numbers.

Allocation Criteria

Operators may request for Radio Network numbers through administrative allocation when the number utilisation of their existing allocated numbers is more than or equals to 80%. Operators shall quarantine recovered mobile numbers for at least 3 months before making them available to the next user.

For prepaid service, operators are required to implement a fixed term expiry period not exceeding 6 months from the last top-up or last extension to maximise the re-use of the prepaid numbers.

9. '1800' Local Toll Free Service Numbers

'1800' is the prefix for the local toll free service. In total, the dialling number of the service comprises of 11 digits. The numbers take the form of '1800' access code + 7-digit virtual number.

Eligibility

FBO licensees providing facilities for local toll free services are eligible to apply '1800' numbers on behalf of their customers.

Allocation

IMDA manages the '1800' numbers on a per number basis. A licensee may, on behalf of their customers, apply for individual '1800' numbers through an online number registration system on a first-come-first-served basis.

Special '1800' numbers of the form '1800 AAA AAAA' where A = 0-8 are allocated via bidding.

10. '1900' Premium Based Service Numbers

'1900' is the prefix for premium-based service (e.g. Audioline) and televoting service. In total, the dialling number for each of the services comprises of 11 digits. The numbers take the form of '1900' access code + 7-digit virtual number.

Eligibility

FBO licensees providing facilities for premium-based services are eligible for '1900' numbers.

Allocation

IMDA allocates '1900' numbers in blocks of 10,000 numbers to licensees for the provision of premium-based services. A maximum of 10 blocks per licensee from 1900 N1X XXXX have been reserved for such service.

Special '1900' numbers of the form '1900 AAA AAAA', where A = 0-8, are allocated via bidding.

11. '800' Numbers

'800' is the prefix for International Toll Free Services (ITFS) and Home Country Direct Service (HCDS). The dialling number of the service consists of 10 digits - the '800' access code followed by a 7-digit number.

Services

• ITFS numbers: Subscribed by overseas-based companies to offer toll-free services for calls made from Singapore to the companies' home country.
• HCDS numbers: Subscribed by foreign public telecoms operators to offer toll-free services between visitors in Singapore and the overseas home operator.

Eligibility

FBO licensees offering ITFS and HCDS are eligible for '800' numbers.

12. Number Charges

Numbers with certain identifiable pattern in the last four digits are identified as "Golden Numbers". IMDA charges licensees a one-time sum of S$50 per Golden Number for PSTN, cellular, IPT and UCDO services, and S$30 per Golden Number for paging service.

Total Count: 486 Golden Numbers in a number level

13. Number-to-Line Ratio

IMDA has established 2 sets of number-to-line ratio which licensees are required to follow:

• For every 4 DID circuits subscribed, a subscriber can be assigned a maximum of 100 DID numbers.
• For every 1 ISDN 30 circuit subscribed, a subscriber can be assigned a maximum of 1000 Direct Dialling Inwards (DDI) numbers.

14. Extraordinary DID Number Charging Scheme

DID number requirements beyond the maximum 100 DID numbers per 4 DID lines are considered as extraordinary requirement and are subject to IMDA's approval. Approved numbers are subject to a levy of $5 per extraordinary DID number per annum.

15. Numbers Ending with '0000' and '9999'

Licensees shall set aside a specific percentage of numbers ending with '0000' and '9999' for use in the nation's interest:

• Level '6' PSTN numbers and IPT numbers: 15% of the numbers ending with '0000' and 15% of the numbers ending with '9999'.
• For mobile numbers: 50% of the numbers ending with '0000' and 50% of the numbers ending with '9999'.
• For paging numbers: 30% of the numbers ending with '0000' and 30% of the numbers ending with '9999'.

16. Number Portability

Number portability refers to the ability for subscribers to retain their current numbers when they change operators or the geographical location. Number portability is in place for PCMTS, PRPS and the PSTN fixed network, and all FBO licensee and SBO (Individual) licensees licensed as MVNO are required to implement and support number portability.

17. 9-Digit Numbering Format

Prior to the exhaustion of the current 8-digit numbering format, IMDA will migrate to a 9-digit numbering format. As such, 9-digit numbers are reserved for future numbering needs.

18. Signalling Point Codes

Signalling Point Codes (SPCs) are signalling addresses used in a signalling network employing common channel Signalling System No.7 (SS7) for call set-up.

International Signalling Point Code (ISPC)

International Signalling Point Codes (ISPCs) are 14-bit binary codes used to establish direct SS7 signalling links and interconnection with overseas networks. FBO licensees and SBO licensees establishing direct SS7 signalling links and interconnection with overseas networks are eligible for ISPCs.

National Signalling Point Code (NSPC)

National Signalling Point Codes (NSPCs) are 14-bits binary codes used to establish direct SS7 signalling links and interconnection with local networks. For FBO licensees, IMDA will assign a block of 8 NSPCs to each licensee. For SBO licensees, IMDA will assign a block of 4 NSPCs to each licensee.

19. Global Title

Global Title (GT) is an address used in signalling networks to route signalling messages in a telecommunication network. A FBO licensee or SBO licensee who is eligible for the 8 digit E.164 numbers, is required to use the allocated number levels for the GT.

20. Use of the '*' and '#' Keys

The use of '*' and '#' keys for value added services should be switch-based. These codes should terminate at the local switches and should not be passed from one switch to another. The use of such codes should not cause conflict to the National Numbering Plan.

21. Alphanumeric Telephone Keypad Standard

IMDA adopts the alphanumeric keypad standard recommended by the ITU for use in Singapore in accordance with ITU-T Recommendation E.161:

22. General Terms and Conditions

• Any number(s) assigned is the property of IMDA and IMDA has the proprietary right to the number(s) assigned.
• IMDA reserves the right to alter and/or reallocate any number(s) assigned, at any time, upon written notice.
• Operators are required to return the associated numbering resource to IMDA upon the termination of service or licences.
• Licensees shall not use any number or code that is assigned, allocated or reserved under this Plan for any service other than the type of service to which the number has been assigned.
• A Licensee shall only assign any number or code to any person if the number or code has not already been assigned to another person.

23. List of Abbreviations