Z1 Fremont, Newark, Union City, Hayward, Oakland, Castro Val
Z2 Milpitas, Sunnyvale, San Jose
Z3 Santa Clara, Campbell, Saratoga, Los Gatos
Z4 Los Altos, Mountain View, Palo Alto, Menlo, Stanford, Atherton
Z5 Redwood City, Foster City, San Mateo, San Carlos, Belmont, Burlingame, South San Francisco
Z6 Livermore, Pleasanton, Dublin, San Ramon, Danville, Walnut Creek, Alamo