Rapid Addressing

Put in the postcode - Get the address

Address Management

Rapid addressing; postcode identification and more

Mailing List Generation

Build mailing lists for bulk mailing for free

Web Use

Get a visitor's address and position from their postcode

Where's My Nearest?

Find the local branches of a business

Map Referencing

Pinpoint the map position of postcode


Postal codes and addresses for the Republic of Ireland


Corvid-19 action

16 March 2020

Over the past year Arc en Ciel has moved largely to electronic delivery of software and invoices. During the current emergency these will become our invariable procedures.
In addition, we have organised matters so that all our staff have access to appropriate client and accounting data and to company emails on their personal computers so that they can work from home.
Telephone, email and remote connection to your machines will continue as before and we expect support to be unaffected.
Realistically, it seems restrictions on everybody's movements will continue until at least the Autumn. We wish everybody the best at this difficult time.

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Price increases

01 January 2020

The Royal Mail increased its fees for the use of its data in 2019, and we are passing on this increase from the New Year The old and revised prices for our most popular products are given below.

Product Old price New price
Address renewal £113 £116
Address (5-user) renewal £534 £545
Address+ renewal £211
Address+ (5-user) renewal £997
Road-level webservice (10K credits)
Premise-level webservice (10K credits)

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Friendly naming

01 January 2020

Our licensing system identifies computers by deriving a unique "fingerprint". For convenience, we are now allowing users to associate a human-friendly name with registered computers. This is assigned during the registration process as below:-

For users that have a number of licences, this will make administration and auditing much easier.

Latest data issues

1 April 2020

Addressing data:

We are currently shipping the Royal Mail data for Quarter 2, 2020. 
In this issue, the Ordnance Survey data shipped with most of our products is for February 2020. 
If you are an existing user, you can visit www.arcenciel.com/updates and input your licence key to download the latest version of the software and data.