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 a postcode


Postal codes and addresses for the Republic of Ireland


Arc en Ciel provide updates four times a year, with the rollouts being the first week of January, April, July and October. To get the latest software and data for your purchase, simply enter your licence key below.

Licence key case
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Normally our products are activated online. Sometimes this doesn't work because your firewall is very secure or perhaps you have limited access to the Internet. In this situation you can obtain an “unlocking key” through this page which you can enter into your product manually. Simply enter your licence key below.

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