If you need telephone numbers added to your data then you have come to the right place.

ADMAR are one of a select group of companies licensed to access the BT OSIS Database for Teleappending purposes.

BT OSIS is used by all UK 118 providers, however unlike a voice 118 service we match telephone numbers to your data using an automatic telephone number appending process

We can match telephone numbers to hundreds of thousands of records every single day.

All processing is performed in-house meaning we have total control over the accuracy of matching, quality of precessing, security of your data and very swift processing times.

OSIS is updated daily and includes DQR Numbers and Ex-Directory information. Telephone numbers obtained from unofficial sources will be out of date, inaccurate and could lead to a complaint under the Data Protection Ac