Who Are We

The Calls Warehouse is an established telecoms provider who specialise in Super Fast Broadband and Cloud Voice services. With the recent launch of partner company The SIM Warehouse, we are able to offer one lucky winner 12 months free Unlimited O2 SIM Card.

The SIM Warehouse specialises in Unlimited O2 SIM Cards at great value prices. The O2 network, renowned for its extensive coverage and reliable service, ensures that customers enjoy seamless connectivity whether you are in bustling city centre or exploring the countryside.