118 Directories Entry

BT's Operator Services Information System (OSIS)

BT's OSIS is a centrally administered database containing over 27 million Telephone Numbers for Businesses and Individuals in the UK.

OSIS is the most up-to-date and accurate source of Telephone Number information available, with up to 80,000 updates each day.

Every 118 Directory Enquiry Service Provider in the UK uses OSIS, as well as the various Printed and Online Directories.

List your Telephone and Fax Numbers in BT's OSIS

If you purchase a Telephone or Fax Number from TTNC, you can have them listed together with your Business Name and Business Activity in the OSIS database.

Each Number that is submitted to OSIS costs £15 + VAT, so if you submit a Telephone Number and Fax Number, the price will be £30 + VAT.

Listings are usually live within 3 working days from submission.

Please Note: We can only submit TTNC Numbers to OSIS; we cannot submit any other Network Operators Numbers.

Next Step

If you are already a TTNC customer and would like to add an Entry to OSIS, then please Login to the Novero Platform and click on “Add OSIS Entry”, then fill out the online form and make payment.

If you are not a TTNC customer, then you will need to purchase a Number and follow the instructions above.