Les Oliver is a Senior Consultant with InterConnect Communications Ltd. He has worked in the telecommunications industry for over 35 years, initially with BT where he was Product Manager in the Wholesale Equal Access Team with individual responsibility for Non-Geographic Number Portability, Carrier Pre-Selection and Local Loop Unbundling. Since joining InterConnect, Les has advised a number of regulators and operators on numbering matters including number plans and number portability.

John Pendle was Numbering Programme Manager for BT in the UK from 1996 to 2000. During this period, he led the BT team charged with implementing the UK National Code and Number Change in 2000. This included conceiving and leading the network industry team to manage the number change publicity and technical changes. Since leaving BT, John has worked as an independent consultant advising regulators and operators on numbering, number portability and carrier pre-selection issues. His work with InterConnect includes advising the governments or regulatory authorities in Poland, Lebanon, Romania, the United Arab Emirates, Qatar, Saudi Arabia and Bahrain.

Mark McFadden is the Senior Resource Manager for Addressing and Naming at the Internet Assigned Numbers Authority. With more than 20 years of operational and policy experience with IP addressing he has extensive experience in large-scale internetworking. He is an active contributor to work in the Internet Engineering Task Force (IETF) and ICANN, and he is involved in the development of global internet addressing standards and policies. He is also a regular contributor to the work of the Regional Internet Registries, including serving as the Chair of the Address Supporting Organization. Prior to working for IANA, Mark was the Senior Strategist for IP Addressing and Naming at BT. Mark also taught in the Computer Science program at the University of Wisconsin in Milwaukee.

Tony Holmes had led BT’s Naming and Addressing Policy and Strategy team for many years during which he has also held a number of key positions in relevant International forums. These include the ETSI Group responsible for Numbering, Addressing and Routeing, which Tony has chaired for over 10 years, and a number of rapporteurships on key numbering projects in ITU-T Study Group 2. This work also resulted in Tony leading a number of key initiatives in conjunction with the European Commission and the telecommunications sector of CEPT (Committee on European Postal Regulations) who are actively involved in the development of telecommunications regulatory issues related to numbering within Europe.