How To Call London From Singapore
Quick Reference Summary
To call London from Singapore:
001 + 44 + 20 + Local Number
Examples:
- For London landline: 001 + 44 + 20 + XXXX XXXX
- For UK mobile phone: 001 + 44 + 7XXX + XXXXXX
When it’s 12 PM (noon) in Singapore, it’s 5 AM in London (7 hours behind).
How to Call a Landline in London
Calling a London landline from Singapore is easy if you follow these steps:
- Dial Singapore’s international access code: 001 (or 002, 008 depending on your carrier)
- Dial the UK’s country code: 44
- Dial London’s area code: 20 (without any 0 in front)
- Dial the local phone number (usually 8 digits for London)
For example, if you’re calling a London number written as 020 1234 5678, you would dial 001 44 20 1234 5678 from Singapore.
Remember: When people in the UK write down phone numbers, they include a 0 before the area code (e.g., 020 1234 5678). But when you call from Singapore, you need to drop this 0 and just dial the area code after the country code.
How to Call a Mobile Phone in the UK
Calling a UK mobile phone follows a similar pattern:
- Dial Singapore’s international access code: 001 (or 002, 008)
- Dial the UK’s country code: 44
- Dial the mobile prefix (without the first 0)
- Dial the rest of the mobile number
For example, if the UK mobile number is 07123 456789, you would dial 001 44 7123 456789 from Singapore.
UK mobile numbers always start with 07 when dialed within the UK. From Singapore, you drop the 0 and dial 7 after the country code 44.
Different Ways to Dial Internationally from Singapore
Singapore offers several international access codes depending on which phone company you use:
- 001: SingTel
- 002: M1
- 008: StarHub
The choice of access code might affect how much your call costs. If you’re using a phone card, follow the specific instructions that came with your card.
Understanding London Phone Numbers
London landline numbers follow this pattern:
- Area code: 020 (when dialed within the UK)
- Local number: 8 digits, usually written as XXXX XXXX
The full number has 11 digits when dialed within the UK (including the 0), or 10 digits when called from abroad (without the 0).
London actually uses two primary phone number ranges:
- Inner London: Numbers typically start with 020 3, 020 7, or 020 8
- Outer London: Numbers typically start with 020 3, 020 8, or 020 9
But when calling from Singapore, you’ll simply dial 44 20 followed by the 8-digit local number.
UK Mobile Phone Numbers
UK mobile numbers:
- Always start with 07 when dialed within the UK
- Have 11 digits in total (including the leading 0)
- Are typically formatted as 07XXX XXXXXX
When calling from Singapore, drop the 0 and dial 7 after the country code 44.
Different mobile networks typically use different starting digits:
- 07700-07799, 07900-07999, 07500-07599: Vodafone
- 07800-07899, 07000-07099: EE
- 07300-07399, 07400-07499, 07600-07699: Three
- 07850-07899: O2
But you don’t need to worry about which network your contact is on – the dialing method is the same for all UK mobile numbers.
Other Important UK Area Codes
If you need to call other cities in the UK from Singapore, here are some major area codes (remember to drop the 0):
| City/Area | Area Code (drop the 0 when calling from Singapore) |
|---|---|
| London | 20 |
| Manchester | 161 |
| Birmingham | 121 |
| Edinburgh | 131 |
| Glasgow | 141 |
| Liverpool | 151 |
| Bristol | 117 |
| Leeds | 113 |
| Sheffield | 114 |
| Belfast | 28 |
| Cardiff | 29 |
| Newcastle | 191 |
| Nottingham | 115 |
Time Difference
The UK is on either Greenwich Mean Time (GMT, UTC+0) during winter months or British Summer Time (BST, UTC+1) during summer months.
Singapore is on Singapore Standard Time (SGT, UTC+8) all year round and does not use daylight saving time.
This means the time difference between Singapore and London is:
- 8 hours during UK winter (when the UK is on GMT)
- 7 hours during UK summer (when the UK is on BST)
The UK switches to British Summer Time on the last Sunday in March and back to GMT on the last Sunday in October.
Good Times to Call
Due to the 7-8 hour time difference, choosing a good time to call requires some planning:
- 8 AM in Singapore = 12 AM or 1 AM in London (very late night)
- 12 PM in Singapore = 4 AM or 5 AM in London (early morning)
- 6 PM in Singapore = 10 AM or 11 AM in London (morning)
- 10 PM in Singapore = 2 PM or 3 PM in London (afternoon)
The best times to call London from Singapore are:
- Evening in Singapore (6 PM – 11 PM) = Morning/early afternoon in London (10 AM – 3 PM)
- Late night in Singapore (11 PM – 1 AM) = Afternoon in London (3 PM – 5 PM)
For business calls, Singapore evening (6 PM – 10 PM) is ideal as it corresponds to London business hours.
Special UK Numbers
Service Numbers
- 0800, 0808: UK toll-free numbers (sometimes reachable from abroad)
- 0845, 0870, 0871: Special rate numbers (may be difficult to reach from abroad)
- 09XX: Premium rate services (typically can’t be called from abroad)
Emergency Number
- 999 or 112: UK emergency services (police, fire, ambulance) These cannot be dialed from outside the UK.
Call London For Less With Singapore Phone Cards
Calling London from Singapore can be expensive with regular phone companies, but Singapore Phone Cards offers a cheaper way to stay in touch with family, friends, or work contacts in London and the rest of the UK.
Our customers who call the UK often love our clear sound quality and low rates. Whether you’re calling London landlines or mobile phones anywhere in the UK, you’ll get great service at a good price.
Calling to a landline in London? See our best international calling cards for the UK here.
Calling to a UK mobile? See our best international calling cards for UK mobiles here.
Using our service is simple and easy:
- Dial the local access number we provide
- Enter your 10-digit PIN number
- Dial the UK (44 + area code without the 0 + local number)
You can use our service from any landline or mobile phone in Singapore. What makes our service special:
- Call to 200+ countries including all parts of the UK
- Call from landline or mobile with the same great rates
- No hidden fees or extra charges
- 100% prepaid so you’re always in control
- No reactivation fees even if you don’t use your card for a while
- Phone card details sent right away by email
- Your credit rolls over so you never lose what you’ve paid for
Need Cheap Calls To London?
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