Singapore phone code +65: mobile format & how to dial

Key facts

International code+65

International format+65 XXXX XXXXe.g. +65 8123 4567

Mobile prefixesXXXX XXXXe.g. 8123 4567

Mobile length8 digits

Landline formatXXXX XXXXe.g. 6123 4567

Domestic trunk(none)

How to read a number

+6581234567

+65Country code: Singapore.
8First digit: Shows the service type: 8 and 9 are mobile, 6 is fixed line, 3 is VoIP.
1234567Remaining 7 digits: Allocated to carriers in blocks; with number portability you can’t tell the current carrier.

Singapore has no area codes or trunk prefix — dial all 8 digits. VoIP numbers starting with 3 are often rejected at sign-up.

This section checked 2026-09-13. Sources: www.imda.gov.sg/-/media/imda/files/regulation-licensing-and-consultations/frameworks-and-policies/numbering/national-numbering-plan-and-allocation-process/national-numbering-scheme-23-oct-2017.pdf · imda.gov.sg/news-and-events/Media-Room/archived/ida/Media-Releases/2005/20050706170936

Number ranges & quality

Range	Type	Notes
`Starts with 8 / 9 (8 digits)`	Mobile carrier	Singapore mobile numbers are 8 digits.

Intl SMSStable

Virtual-number riskLow

ID requiredRegistration is mandatory, with at most three prepaid SIMs per ID across all operators; since 15 July 2024 passport-registered prepaid SIMs are valid for at most 30 days.

Physical SIMs can sign up without issues.

Carriers & prefixes

Mobile prefixes by carrier.

Number portability applies — a prefix only shows the original carrier. Full portability since June 2008.

Singtel Mobile carrier

Notable brands: GOMO
StarHub Mobile carrier

Notable brands: giga!
M1 Mobile carrier
Simba Mobile carrier

Formerly TPG Telecom Singapore.

This section checked 2026-09-13. Sources: www.imda.gov.sg/Content-and-News/Press-Releases-and-Speeches/archived/ida/Press-Releases/2008/20080416085608 · dollarsandsense.sg/mobile-virtual-network-operator-mvno/

SIM cards & keeping a number

Every prepaid SIM in Singapore must be registered, with at most three prepaid SIMs per ID document across all operators. The key rule: since 15 July 2024 (IMDA), a passport-registered prepaid SIM is valid for at most 30 days. To keep it, Singtel requires re-registration at a shop with a Singapore IC or work pass within 30 days; SIMBA requires renewal with your passport at an authorised centre within 30 days, not online.

So tourists with only a passport effectively can’t keep a Singapore number while abroad — the old tip of “top up a hi!Card to keep the number” no longer works for visitors.

Singtel hi!Card

Local prepaid

Network: Singtel
Price: Depends on plan and top-up — see the official site
Keeping the number: Passport-registered SIMs last at most 30 days and are then suspended without refund. Holders of a Singapore IC or work pass can re-register at a Singtel shop within 30 days and then extend validity with top-ups like any prepaid card (see the official site for days per top-up).
ID check: Tourists: passport (30 days max); residents: Singapore IC or pass. Max three prepaid SIMs per ID across all operators.
SMS & calls: Singtel (official): outgoing SMS isn’t supported while roaming; incoming SMS depends on 3G availability in the country you’re in

Pros

Singapore’s largest operator
Long-term use for holders of Singapore ID

Watch out

Passport-only tourists lose the SIM after 30 days — it can’t be kept from abroad
No outgoing SMS abroad, and incoming SMS needs 3G, which many countries have switched off

Where to buy: singtel.com

Sources: cdn1.singteldigital.com/content/dam/singtel/personal/products-services/mobile/prepaid-plans/Terms%20&%20Conditions/03_FAQ_20241104.pdf · www.singtel.com/personal/support/prepaid-cards · www.simba.sg/static/media/CIS_SIMBA_Prepaid_100GB_Aug2024.f6084a67.pdf · forum.singaporeexpats.com/viewtopic.php?t=157379 · cellesim.com/en/blog/singtel-hi-tourist-esim-singapore-guide-passport-rule

From user and blogger reports; platform risk rules change often — treat as a guide only. This section checked 2026-09-15.

Sign-up availability

What to expect when signing up for these services with a physical SIM from this country:

ChatGPT Works

Claude Works

WhatsApp Works

Telegram Works

LINE Works

WeChat Works

X Works

TikTok Works

Gemini Works

Jump to another country

Calling Singapore from abroad

Dial +65, then the local number. E.g. the landline 6123 4567 is dialled from abroad as +65 6123 4567.

Generate the full number →

Dialing within Singapore

No trunk prefix — dial local and long distance numbers directly.

Elsewhere in Asia

Community tips

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Common premise & disclaimer

Applies to every platform: VoIP / virtual numbers and heavily-reused number pools get rejected. Physical SIM only.

Checked 2026-09-12. Platform region policies and number-range allocations change — always confirm against each platform’s official supported-regions list and the carrier’s notices.

Sources：help.openai.com/articles/7947663 · support.google.com/gemini?p=gemini_web_availability

Singapore +65