How to Call Indonesia From the UK: Complete Dialling Guide

December 14, 2025 7 min read BubblyPhone Team

Call Indonesia from the UK by dialling 00 + 62 + the number (drop the leading 0). Get step-by-step instructions, UK network rates, and best calling times.

To call Indonesia from the UK, dial 00 + 62 + the phone number (without the leading 0). From a UK mobile, you can also use +62 directly. This guide covers everything you need to connect with Indonesian contacts — formats, costs, timing, and alternatives.

Whether you're calling family in Jakarta, a hotel in Bali, or business contacts in Surabaya, here's how to get through.

Quick Reference: UK to Indonesia Dialling

Key rule: Always drop the Indonesian "0" prefix when dialling internationally.

Step-by-Step: Calling Indonesian Mobile Numbers

Indonesian mobile numbers start with "08" domestically. When calling from the UK:

Step 1: Dial the UK International Access Code

This signals an international call from the UK.

Step 2: Dial Indonesia's Country Code

This routes your call to Indonesia.

Step 3: Dial the Mobile Number (Without the Leading 0)

812-3456-7890

Drop the "0" from the Indonesian domestic format.

Complete Example

Indonesian number (domestic format): 0812-3456-7890 UK dialling format: 00-62-812-3456-7890

From a UK mobile phone, the simpler option:

+62-812-3456-7890

The "+" symbol replaces "00" and works from any country.

Step-by-Step: Calling Indonesian Landlines

Indonesian landlines use geographic area codes. The process:

Step 1: Dial the UK International Access Code

Step 2: Dial Indonesia's Country Code

Step 3: Dial the Area Code (Without the Leading 0)

For Jakarta (area code 021):

Step 4: Dial the Local Number

1234-5678

Complete Example

Jakarta number (domestic format): (021) 1234-5678 UK dialling format: 00-62-21-1234-5678

Major Indonesian City Area Codes

When calling Indonesian landlines, use the correct area code:

For the complete list, see our Indonesia area codes guide.

Indonesian Mobile Carrier Prefixes

The prefix after "8" indicates which carrier your contact uses:

The carrier doesn't change how you dial — just helps identify the network. For details on specific prefixes, see our guides on +62 857 numbers and +62 831 numbers.

How Much Does It Cost to Call Indonesia From the UK?

Costs vary significantly by calling method:

UK Mobile Network Rates (Pay As You Go)

Rates are approximate and subject to change. Contract plans may differ.

BT Landline Rates

Standard BT international rates to Indonesia typically run £1.00-£1.50 per minute without an international add-on. BT offers international calling plans that reduce per-minute costs for frequent callers.

International Calling Add-Ons

Most UK providers offer international bundles:

EE International: Various packages with included minutes

Vodafone International: Bolt-on options for reduced rates

Three Feel At Home: Some international benefits (check Indonesia coverage)

Monthly add-ons make sense only if your call volume justifies the fee.

Calling Cards

Prepaid calling cards offer rates around 3-10p per minute to Indonesia. Watch for:

Connection fees per call

Expiry dates on credit

"Maintenance" charges reducing balance

Quality inconsistencies

Browser-Based Calling

Internet-based calling bypasses traditional phone networks entirely. Browser-based calling provides:

Transparent per-minute pricing

No monthly fees or contracts

Call from any device with internet

No app installation required

Significantly lower rates than mobile networks

Check current rates for Indonesia →

Best Time to Call Indonesia From the UK

Indonesia spans three time zones:

Indonesia Time Zones

Time Difference From UK

Practical Calling Windows

Morning calls from UK (8-10 AM GMT): → Afternoon in Indonesia (3-5 PM WIB) — Catches end of business day

Lunch calls from UK (12-2 PM GMT): → Evening in Indonesia (7-9 PM WIB) — Good for personal calls

Evening calls from UK (6-8 PM GMT): → Late night in Indonesia (1-3 AM WIB) — Not ideal, too late

Early morning from UK (6-7 AM GMT): → Early afternoon in Indonesia (1-2 PM WIB) — Business hours

The UK's clock change in March and October shifts the difference by one hour. Indonesia doesn't observe daylight saving time.

Common Dialling Mistakes to Avoid

Mistake 1: Keeping the Indonesian "0"

❌ Wrong: 00-62-0812-3456-7890 ✅ Correct: 00-62-812-3456-7890

Always remove the leading zero when adding the international prefix.

Mistake 2: Using "+" With "00"

❌ Wrong: +00-62-812-3456-7890 ✅ Correct: 00-62-812-3456-7890 OR +62-812-3456-7890

Use either the access code (00) OR the plus symbol — never both.

Mistake 3: Missing the Country Code

❌ Wrong: 00-812-3456-7890 ✅ Correct: 00-62-812-3456-7890

Without "62," your call won't route to Indonesia.

Mistake 4: Confusing Mobile and Landline Formats

❌ Wrong: Treating +62 21 as a mobile prefix ✅ Correct: +62 21 is Jakarta's landline area code

Mobile numbers start with 8 after the country code. Landlines use area codes (21, 31, 361, etc.).

Calling Indonesia From Different UK Devices

From a UK Landline

Dial: 00 + 62 + number

00-62-812-3456-7890

From a UK Mobile Phone

Option 1: 00 + 62 + number

00-62-812-3456-7890

Option 2: + 62 + number (recommended)

+62-812-3456-7890

To type "+", hold the "0" key until "+" appears, or press "*" twice on some phones.

From Skype or VoIP

Most VoIP services use the "+" format:

+62-812-3456-7890

Check your service's specific requirements for international dialling.

From a Computer Browser

Browser-based calling typically uses the international format:

+62 812 3456 7890

Enter the number with country code — no access codes needed.

Alternatives to Traditional Calling

For frequent Indonesia communication, consider these options:

WhatsApp Voice/Video Calls

Free calls over internet when both parties have the app. Quality depends on connection speed. Most Indonesians use WhatsApp as their primary messaging platform — it's extremely popular throughout the country.

Browser-Based Calling

Call any Indonesian phone number directly from your browser — mobiles and landlines. The recipient answers on their regular phone, no app needed on their end. Benefits:

Lower rates than UK mobile networks

No contract or monthly commitment

Works from any internet-connected device

Crystal clear WebRTC audio quality

Try calling Indonesia from your browser →

International SIM Cards

For travellers, international SIMs sometimes offer better rates to specific countries. Evaluate based on your call patterns.

VoIP Services

Services like Skype credit or similar platforms offer international calling at reduced rates. Per-minute costs vary by service.

Saving Indonesian Contacts Correctly

For seamless dialling regardless of your location:

Save numbers in international format:

+62 812 3456 7890

This format works whether you're in the UK, travelling abroad, or even visiting Indonesia.

Avoid saving as:

00 62 812 3456 7890

The "00" prefix only works from the UK and some European countries.

Don't save the domestic format:

0812 3456 7890

This only works when physically in Indonesia.

Calling Bali: A Common UK Destination

Bali receives significant UK tourist traffic. If you're calling Bali contacts:

Bali mobile numbers: Follow standard mobile format

+62-812-XXXX-XXXX (or any mobile prefix)

Bali landlines: Use area code 361

+62-361-XXX-XXXX

Hotels and businesses: Most publish international-format numbers on their websites. If they list a domestic number like (0361) 123456, dial:

+62-361-123456

Frequently Asked Questions

What is the dialling code for Indonesia from the UK?

From the UK, dial 00 (international access code) followed by 62 (Indonesia's country code). Then add the phone number without the leading 0. From a UK mobile, you can simply use +62 followed by the number.

How do I call an Indonesian mobile from the UK?

Dial 00-62 followed by the mobile number minus the leading 0. For example, to call 0812-3456-7890, dial 00-62-812-3456-7890. Alternatively, use +62-812-3456-7890 from any UK mobile.

How much does it cost to call Indonesia from the UK?

UK mobile networks typically charge £1-2 per minute to Indonesian numbers. Browser-based calling services offer significantly lower rates without monthly fees. WhatsApp calls are free if both parties have the app and internet connection.

What is the time difference between the UK and Indonesia?

Indonesia is 7-9 hours ahead of UK time (GMT), depending on which Indonesian time zone. Jakarta (WIB) is UTC+7, Bali (WITA) is UTC+8. During British Summer Time, subtract one hour from the difference.

Can I use my UK mobile in Indonesia?

Yes, with international roaming enabled. However, roaming charges apply for calls, texts, and data. Consider a local Indonesian SIM for extended stays, or use WiFi calling/WhatsApp to avoid high roaming costs.

Why isn't my call to Indonesia connecting?

Check that you've removed the leading 0 from the Indonesian number, included the country code (62), and used either 00 or + but not both. Also verify the number is correct and the recipient's phone is on and in coverage.