On August 15th 2007, National Grid Wireless US was sold to LT LLC
and changed its name to Lightower. Lightower is financially and
legally independent from National Grid plc and its affiliates.
On April 3rd 2007, National Grid Wireless UK and its former Crown
Castle UK and Gridcom businesses were purchased by Macquarie UK
Broadcast Ventures ("Macquarie") and are now financially and legally
independent from National Grid plc and its
affiliates.