), in their Huntington Beach and other test markets. In March 2012, Green Box E.R.I. began expanding Green Box numbers into many cities throughout southern California including Costa Mesa, Laguna Beach, Westminster, Mission Viejo, Newport Beach, Tustin, Seal Beach and Sunset Beach.
The passage describes the geographical expansion of Green Box E.R.I.'s services, specifically focusing on the growth of their Green Box number presence in Southern California.