How to Call UK from India: Complete Dialing Guide

Whichever route you pick, the dialing format remains the same.

So, if you’re calling the UK from India, you drop the leading 0 from the UK number and add the country code 44, prefixed with either 00 or a plus sign.

Note: Never enter both +44 and the number’s initial 0. Dialing +44 020 7199 4022, for example, will fail. The 0 has to go once you add the country code +44.

How to call the UK from India? 

Calling a UK number only takes a few seconds once you know the correct sequence. Follow these three steps to connect successfully, whether you’re making a personal call or contacting a business.

Step 1: Enter India’s international access prefix

Before anything else, you need an international access prefix (exit code) that tells your network that you’re dialing outside India.

You can use either:

• 00: The standard international exit code used when dialing from traditional landlines in India.
• + (Plus sign): The standard prefix for smartphones. Long-pressing 0 usually inserts the + symbol automatically.

Note: 91 is India’s country code, used when someone is calling into India. It is not used when you’re calling out of India. 

Step 2: Enter the UK country code (44)

After the international access prefix, enter the UK country code, 44. Depending on how you’re placing the call, you’ll see it written as:

• +44: Used with smartphones, VoIP services, and internet calling apps
• 0044: Used with landlines
• 44: The country code itself

Note: Dialing 44 alone without the preceding + or 00 will fail, as your network won’t recognize it as an international route. 

Step 3: Remove the first zero from the UK number

UK phone numbers always begin with a 0 when dialed locally within the UK. However, you’ll need to drop that leading 0 when dialing internationally.

• Incorrect: +44 07200 008 114 (Call will fail or yield an invalid number prompt)
• Correct: +44 7200 008 114 (Call connects successfully)

Note: The same rule applies to landline numbers.

How to call a UK mobile number?

Calling a United Kingdom mobile number from India follows the same international dialing format. The only difference is that UK mobile numbers usually start with 07 for domestic dialing, and must be removed when dialing internationally.

Standard UK mobile number format:  07XXX XXX XXX 

Example:

• UK mobile number:  07200 008 114
• Dial from India:  +44 7200 008 114

The 0 at the beginning of a UK mobile number is called a trunk prefix.  It is only used for calls made within the UK.

Steps to call a UK mobile number from India:

• Dial the international exit code (+)
• Enter the country code, 44. Drop the leading 0 completely
• Dial the rest of the mobile number starting

While most UK number begins with 07, not every 07 number is a standard mobile number.  Some 07 ranges are used for:

• Personal numbering services (numbers that can be forwarded to different phones)
• Pagers (a legacy service, though rare today)
• Non-geographic services billed differently from a standard mobile call

How to call a UK landline

Though UK landlines work a little differently from mobiles, calling a UK landline from India is just as straightforward as calling a UK mobile number. The key is to identity the geographic area code, remove its leading zero, and then dial the remaining local number after the UK country code.

Standard UK landline number format: 020 XXXX XXXX (UK landline number)

A UK phone number format has two specific parts:

• Geographic area code: Identifies the city or region. E.g., 0161 for Manchester or 0121 for Birmingham
• Subscriber number: The unique recipient’s number assigned within that area

Here are a few common examples:

Steps to call a UK landline from India:

• Dial 00 or + to start an international call.
• Enter the UK country code (44).
• Enter the area code, removing the leading 0.
• Enter the remaining subscriber number.

How to call a UK 03 number

UK 03 numbers are non-geographic numbers, which means they are not tied to a specific city or region. These numbers are commonly used by businesses, government departments, charities, healthcare providers, and other organizations that want a national contact number.

Dialing format:

• Access prefix: 00 or +
• UK country code: 44
• The 03 number, minus the leading 0

Example:

• UK number: 0319 989 202
• Dial from India: +44 319 989 202
  

Are 03 numbers charged differently?

Within the UK, 03 numbers are generally charged at the same rate as geographic landline numbers (such as 02 or 01 numbers) and are usually included in call packages offered by the UK phone providers.

However, if you’re calling from India, your cost depends on the international calling rates of your mobile carrier, internet calling app, or VoIP service providers. Always check your provider’s international pricing before placing the call.

Can you call UK 0800 and 0808 numbers from India?

Yes, you can, but it depends entirely on the organization and the phone number provider, as these numbers don’t always work the way you’d expect from outside the UK.

UK 0800 and 0808 numbers are branded as Freephone numbers, meaning they’re free to call from within the UK. But that doesn’t mean they are free when you call from India. International carriers often treat them differently, and some may block calls to UK Freephone numbers altogether.

If you can’t connect, check the organization’s website for an international contact number. Many UK organizations that rely on Freephone numbers also list a separate direct-dial number for international callers. 

Be careful with 084, 087, 09 and 118 numbers

Not all UK non-geographic numbers work the same way. The following ranges can be more expensive or unavailable when calling internationally:

• 084 and 087 numbers are typically charged at a premium within the UK itself, on top of your provider’s own rate.
• 09 numbers are premium-rate services, often the most expensive category of UK number
• 118 numbers are directory inquiry services, also billed at premium

When called from India, these numbers can end up significantly more expensive than a standard call. And depending on your carrier or VoIP provider, some ranges may not connect internationally at all. If you’re unsure, it’s safer to look for an alternative contact number before dialing.

UK phone number prefixes explained

UK international phone number formats can look quite different depending on their prefix, so knowing the differences between prefixes can help you choose the right number and avoid unexpected charges.

How to call the UK from India using Airtel, Jio, or Vi

Calling United Kingdom from India depends heavily on which network you’re on: Airtel, Jio, or Vi each handle ISD activation and rates a little differently. Rates and plan details change frequently, so always verify the current pricing on the operator’s official page before placing an international call.

How to call the UK from Airtel

Airtel enables ISD calling on both prepaid and postpaid connections. For most users, the basic ISD service is enabled by default. However, some higher-rate destinations on postpaid may require Advanced ISD activation. 

That said, it’s worth a quick check before you call:

• Check your ISD service: ISD is on by default for every Airtel number. 
• Recharge or ISD package process: Postpaid users who want to call a country with a per-minute rate above ₹15 need to activate an advanced ISD service, which can be done at a nearby Airtel store or by calling 121.
• Dialing format: Dial +44 international code followed by the United Kingdom number, dropping the leading 0.
• Check official rate: ISD rates vary by destination and plan. Before calling, review the latest calling charges on  Airtel’s ISD tariff page or in the Airtel Thanks app.

How to call the UK from Jio

Jio allows you to call the UK from India using either a prepaid ISD pack or the standard pay-as-you-go ISD tariff. If you make frequent international calls, an ISD pack is usually the better option to save money.

Activate an ISD pack

You can activate an ISD pack through the MyJio app or Jio.com.

• MyJio app: Mobile ->Recharge->ISD->Select a pack->Pay
• Jio.com: Mobile->Prepaid->International Services->Explore ISD Benefits->Select a pack->Enter your Jio number-> Pay

Activation is instant.

Dialing format

Dial +44 followed by the UK number, dropping the leading zero, same as any other carrier.

Check the current ISD rate

Jio offers Global ISD packs, country-specific packs, and pay-as-you-go ISD calling. Review the latest UK rates on the official Jio ISD plans page before calling.

Note: International calls made over Jio Wi-Fi Calling are billed at the applicable ISD rate.

How to call the UK from Vi (Vodafone Idea)

Vi supports international calling on both prepaid and postpaid connections. Most users have ISD service enabled by default, though availability can vary by plan. Vi also offers ISD packs that can reduce international calling costs.

Check ISD access

If you’re unable to make an international call, confirm that ISD is active through the Vi app or by contacting Vi customer support. Some users may need to activate the service first.

Add an ISD pack (Optional)

If you call the UK frequently, consider purchasing a Vi ISD pack to get lower international calling rates. Otherwise, calls are charged at the standard ISD tariff.

Dial the UK number

Use the standard format: +44 + UK number (without the leading 0)

Verify the latest page

International calling charges vary by destination and plan. Check Vi’s official ISD rates page before placing your call to see the current UK tariff.

How to call the UK from India for free

If you’re looking for how to call a UK number from India for free, the easiest option is to use an internet-based calling app. These services don’t charge for voice or voice calls, but both people must meet a few requirements.

Free app-to-app calls

Several apps let you call the UK at no cost, as long as the call happens app-to-app rather than to a regular phone number:

• WhatsApp: voice and video calls over Wi-Fi or mobile data
• Signal: end-to-end encrypted voice and video calls
• Telegram: voice and video calls between Telegram users
• FaceTime: free between Apple devices, audio or video
• Google Meet: video calls, usable from browser or app
• Microsoft Teams: free consumer voice and video calling

For these calls to work, both participants generally need:

• The same app installed
• A stable internet connection (Wi-Fi or mobile data)
• A registered account on that app

Note: These calls use the internet instead of the phone network; they don’t require the UK ISD code from India or international calling credits.

Can you call a UK landline for free?

Generally, no, you cannot call a UK landline for free. App-to-app calling only works when both people use the same internet calling service. A UK landline or regular mobile number is a part of the public telephone network, so calling it usually requires a mobile carrier, VoIP provider, or another service that supports PSTN calls, which may charge international rates.

Is Skype still available for international calls?

No, as of May 5, 2025, Skype has been retired, and this affected both free and paid Skype users. Microsoft retired Skype to focus on Microsoft Teams (free) as its consumer communication platform going forward. So, any article still recommending Skype for free international calls to the UK is outdated. 

Cheapest ways to call the UK from India

The cheapest option depends on who you’re calling and how often you make international calls. Here’s a quick comparison to help you choose. 

Carrier ISD pack

One of the simplest ways to call the UK from India is by using a carrier ISD pack. It works straight off your existing SIM with no new app or setup. But that simplicity comes with trade-offs, though:

• Rates vary by carrier, plan, and even area code. A UK mobile and a UK landline aren’t always priced the same.
• Without an active ISD pack, calls fall back to the standard ISD rate, which is usually the most expensive way to call.

Good for occasional or unplanned calls, but not the cheapest option for regular UK calling.

Calling-credit app

Calling-credit apps let you call UK mobiles and landlines at a per-minute rate using an internet connection.

Benefits include:

• Per-minute charges are typically lower than carrier ISD rates
• Both mobile and landline numbers are supported. The call reaches a real phone number, not just another app account.
• The call lands as a normal incoming call on the receiver end, meaning they don’t need any app.

Good for individuals calling the UK regularly without wanting to commit to a business phone system.

Note: Always check for any connection fees before making a call. Some apps charge a flat fee per call on top of the per-minute rate, which can make short calls highly expensive.

Cloud phone or virtual number

Calling the UK using a cloud phone or virtual number is the most business-oriented option, and generally the best value for anyone making UK calls as a regular part of work.

It offers benefits such as:

• Helps businesses to establish a local presence in different regions or cities in the UK with local UK caller ID.
• Make and receive VoIP calls from either a mobile device or a desktop.
• Call history and records are available in one place with auto call logs.
• Shared access for teams, so they can call from the same business number, rather than each needing a separate ISD pack.
• SMS support for regular business texting.
• UK customers can call you at UK local rates instead of paying international charges themselves.

Best suited for businesses handling frequent UK calls, sales outreach, or support for UK-based customers.

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

There isn’t a single price for calling the UK from India. The total cost depends on different factors such as:

• Indian mobile carrier: Carriers like Airtel, Jio, or Vi each set their own ISD rates, and these differ from one another and change periodically.

• Prepaid or postpaid plan: Prepaid users are typically billed per call from their balance, while postpaid users may have ISD bundled differently or billed on their monthly statement.

• ISD pack: Having an active ISD pack usually brings the per-minute rate down significantly compared to the standard pay-as-you-go ISD rate charged without one.

• UK mobile versus landline: Calling rates to UK mobile numbers and UK landlines aren’t always identical. Different carriers frequently price these rates differently.

• Special-service number: Numbers with 084, 087, 09, or 118 prefixes can carry premium charges on the UK side, on top of whatever your Indian carrier or provider charges for the international calls.

• VoIP provider: Calling through a VoIP or virtual phone system can have lower per-minute rates but entirely a different pricing structure.

• Connection fee: Some providers may charge a flat fee just to connect the call, separate from the per-minute rate.

• Taxes: GST or other applicable taxes can apply on top of the base call cost, depending on the provider.

• Call duration: Longer calls can cost more, though some providers round up to the nearest minute or bill in fixed increments.

This gives a working estimate, but every variable in it depends on which carrier or provider is being used and which type of UK number is being called.

Note: Check the rate for the exact UK number prefix before calling, especially if you’re dialing 03, 0800, 0808, 084, 09, or 118 numbers, as pricing and accessibility may differ from standard UK landlines and mobile numbers.

Best time to call the UK from India

Choosing the right time can help you reach someone during normal working hours and avoid calling too early or too late.

India follows Indian Standard Time (IST) throughout the year and does not observe daylight saving time. The UK, however, changes its clocks twice a year:

• Greenwich Mean Time (GMT): Usually from late October to late March
• British Summer Time (BST): Usually from late March to late October

As a result:

• During GMT, India is generally 5 hours 30 minutes ahead of the UK.
• During British Summer Time (BST), India is generally 4 hours 30 minutes ahead of the UK.

India-UK time difference

For business calls, 2:30 PM to 9:30 PM IST is usually a convenient window, as it aligns with standard office hours across most of the UK.

Why your call to the UK is not connecting

A UK call that won’t go through usually comes down to one of a handful of common issues, and most of them are fixable in a minute or two.

You kept the leading zero

Keeping the leading zero when calling internationally is the most common mistake that results in calls not connecting. 

• Correct: +44 161 496 0000
• Incorrect: +44 0161 496 0000

ISD calling is not activated

Some carriers require ISD to be manually enabled, or a postpaid account to have international calling switched on. Check your carrier account or app to confirm ISD is active before assuming the number itself is at fault.

Your main balance is insufficient

An unlimited domestic plan does not necessarily include international calling. If you don’t have enough balance or an active ISD pack, your call may fail.

The UK number does not accept international calls

Some UK numbers are restricted by design and are unavailable from overseas, including:

• Certain 0800 and 0808 Freephone numbers
• Premium-rate numbers such as 09
• Organization-restricted or internal business numbers

If available, ask for an alternative geographic or international contact number.

The number format is incorrect

Before dialing, check that you’ve entered the number correctly:

• Either + or 00 (not both)
• UK country code 44
• Remove the leading 0
• Correct area code for the region
• No duplicated country code (for example, +44 44..)

Wi-Fi calling was assumed to be free

Carrier Wi-Fi calling to a UK number typically still incurs standard ISD charges. Using Wi-Fi instead of mobile data doesn’t make an international call free.

The call is being blocked because of caller ID

If you’re making business calls using a cloud phone or VoIP system with a UK caller ID, some calls may be blocked by anti-spoofing protections. Ofcom has introduced measures to help block overseas calls that falsely present UK phone numbers. If your provider supports UK caller IDs, make sure they comply with local regulations and number presentation requirements.

How businesses can call UK customers from India using KrispCall

If your team regularly speaks with customers, prospects, or candidates in the UK, using a carrier ISD pack quickly becomes impractical. A cloud phone system like KrispCall can keep all your business calls in one place while making it easier to manage conversations across your team.

Getting started with KrispCall is simple:

• Create or sign in to a KrispCall account.
• Obtain or connect an appropriate business phone number.
• Enter the UK number in +44 format (without the leading zero).
• Place the call through the web or mobile dialer.
• Manage call records, notes, recordings, and team activity from a single workspace.

KrispCall is a good fit for:

• Sales teams calling UK prospects: outbound calling at scale, with every call logged against the right contact automatically
• Support teams serving UK customers: calls, notes, and history stay in one place, so any team member picking up a case has full context
• Recruitment agencies: high call volumes to UK candidates and clients are easier to manage with shared call records and team visibility
• Remote teams: anyone on the team can call from wherever they’re working
• Businesses needing centralized call activity: recordings, notes, and call logs sit in a single workspace, useful for training or quality checks

Depending on your number type, account configuration, and the destination you’re calling, an appropriate caller ID may be presented. However, caller ID availability is subject to carrier support and applicable regulatory requirements, so it cannot be guaranteed in every situation.