5 4 Naga City,City of Iriga,Northwest Masbate City,Naga City,Southeast Tabaco City,City of Ligao,Northeast Sorsogon City,Legazpi City,Southeast City of Ligao,Legazpi City,West Naga City,City of Iriga City of Iriga, Naga City Sorsogon City, Naga City Sorsogon City, City of Ligao 0