Metro fiber operator abvt has added its first new market since the dot com bubble, with an expansion into Miami. The company has always focused only on the very largest bandwidth markets and Miami was the biggest gap in that coverage, so this was a natural move. In addition to having many high bandwidth enterprises in the financial, healthcare, and media sectors, Miami is also one of the major gateways between North and South America.
First on AboveNet's list were the obvious hubs, such as the NAP of the Americas of Terremark (news, filings) [a subsidiary of Verizon (NYSE:VZ, news, filings)] . They don't yet have a map of their Miami fiber available to the public, but I'll add it to my maps section when they do.
AboveNet has been promising to expand into new markets this year, both in the US but also over in Europe - maybe the latter will come in the fall. Their earnings report arrives next Friday, at which time I expect they will provide further information.