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
Z6 San Francisco
Z7 Livermore, Pleasanton, Dublin, San Ramon, Danville, Walnut Creek, Alamo, Berkeley