Los Angeles-based eFax, the online FAX service run by j2 Global Communications, reports today that it is in a big expansion internationally. The firm said it has grown its global network by more than 13 percent since March, bringing its total number of cities domestically to 2,700 cities, and total international cities to 1,458. The firm said the recent growth is due to expansion in both Asia and Europe. eFax offers an online fax-to-email and fax sending features based on a monthly subscription.