020 3 London Numbers

Why an 020 3 number helps your business

An 020 3 number gives you a London number that is not tied to any one part of the capital. The range was introduced in 2005 and covers the whole of London, so it suits businesses that serve customers right across the city, or that simply want a London number without being linked to the centre or the suburbs.

Because 020 3 is a newer range, there is often a good choice of numbers available, including easier-to-remember combinations. That makes it a popular starting point for new businesses and start-ups that want a credible London number from day one, without the cost of a London office. Your callers see a London number, and you answer it wherever you work.

About 020 3 numbers

London has a single area code, 020, and the 3 is the first digit of the eight-digit local number. An 020 3 number is written 020 3xxx xxxx, although people often search for "0203 numbers". The range was added in 2005 to provide more London numbers, and it sits alongside 020 7 and 020 8 under the same area code. Callers on a London landline can dial just the eight-digit local number.

Because it shares the 020 area code, a call to an 020 3 number costs the same as a call to any other London landline, and it is usually included in UK landline and mobile plans. From abroad, callers dial +44 20 3xxx xxxx, leaving out the first 0.

Who uses 020 3 numbers

Start-ups and new businesses

New companies use an 020 3 number to look established in London from the start. It costs little to run, and the number can grow with you as you add staff or move offices.

Services that cover all of London

Couriers, recruitment agencies, event suppliers and other firms that work across the whole city choose 020 3 because it does not point to one district. It feels equally local in Hackney, Hammersmith or Greenwich.

Remote and distributed teams

If your team works from different towns, or from home, an 020 3 number gives everyone one shared London number for customers to call, with calls passed to whoever is available.

How your 020 3 number works

Your 020 3 number diverts calls to any UK landline, any UK mobile or Alphatalk's cloud phone system, so it works however your business is set up today and as it grows. You can change the destination at any time in myAlphaTalk, our customer portal. Use time-of-day routing to send calls to different people or phones at different times, have voicemail messages emailed to you, and check call statistics to see how busy your line is. You buy your number online and our UK team sets it up. Every number costs £4.99 a month with 1,000 free UK minutes, and Standard numbers have no setup fee.