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How to format Singapore phone numbers (+65)
Singapore phone numbers tripping up your CRM, SMS tool, or contact export? You're not alone. Singapore's numbering plan has specific rules that most other countries don't follow, and any tool that wants 'a phone number' usually wants it in E.164. The international standard. Not the local format your contacts are saved in.
The Singapore format in one sentence
Singapore numbers are 8 digits, no leading 0. Just prepend +65: 8123 4567 becomes +6581234567.
E.164 conversion rule
E.164 is the global standard for phone numbers: country code, then national number, no spaces or punctuation. For Singapore, the country code is +65. No leading 0.
Examples: a local-format Singapore number gets rewritten in E.164 by removing whatever local prefix it carries (often a leading 0) and prepending +65. See our E.164 explainer for the broader rules.
Mobile vs landline
Singapore mobile numbers tend to have a fixed prefix range that distinguishes them from landlines. CRMs that ask for 'mobile number' vs 'phone number' separately rely on this distinction. If you're sourcing contacts from iPhone, the OS doesn't track mobile-vs-landline as a separate property unless you've manually labeled it.
Pluck reads the iOS label (Mobile, Home, Work) where it exists and preserves it in the export. If labels are missing, the prefix-range heuristic in libphonenumber catches most cases.
Country code drift
Older contacts in your address book might be saved in a format that doesn't quite match the current Singapore numbering plan. Some countries have renumbered (Vietnam dropped its 11-digit mobiles, Brazil added a 9 in front of mobile numbers, the UAE moved its mobile prefix). Tools that validate against libphonenumber will reject old formats.
If you have an older address book, run a quick audit. Pluck's per-country grouping surfaces Singapore entries together so you can scan for the wrong-length oddballs before you export.
Using Singapore numbers in an SMS or CRM workflow
For CRM imports: How to format phone numbers for a CRM import. For SMS platforms (Twilio, Klaviyo, Attentive, etc.), the requirement is universal: E.164 with the +65 country code. Local format won't send, and most tools won't even queue the message.
The Pluck workflow for one-country exports
If you only need the Singapore portion of your contacts (for a region-specific SMS blast, a local CRM, or a country-specific outreach campaign), Pluck's per-country export does this in one tap. Select Singapore on the Organize screen, configure the export to E.164, generate.
The output is a clean CSV with every Singapore contact, every number in +65 E.164 form, deduplicated, with field control over name, email, and any other iOS-stored data you want included.
Get Pluck for iPhone
Pluck does the steps in this guide on your iPhone, with no server, no account, and no analytics. Group your contacts by country, find duplicates the iOS tool misses, and export to CSV, Excel, TXT, or vCard.