The largest mobile operator by subscribers in the US, Verizon Wireless, has announced that it has successfully completed the first stage of testing over its LTE networks in Boston and Seattle. The cellco reports that it has ten LTE cell sites up and running on the 700MHz spectrum in Boston and Seattle, and the firm has made its first data calls over the networks. Verizon Wireless’ chief technology officer, Tony Melone, said that the commercial launch would yield average download speeds of 7Mbps to 12Mbps, faster than current wireless broadband. On 27 July CommsUpdate reported that Verizon was planning to beat its rivals to market with the 4G technology, estimating that an initial launch would take place in the first quarter of 2010. It now appears that Verizon could commercially launch LTE before the end of 2009.