Yes, that’s right. Sacramento has gotten so big that the 916 area code will no longer suffice. By the end of 2018, a new area code will be put into place by the California Public Utilities Commission in order to “provide more prefixes and new telephone numbers to 916 customers.”
Customers will still be able to keep their current numbers (including area codes) and people throughout the El Dorado, Solano, Sutter, Yolo, Placer, and Sacramento counties will be given these additional codes. The process is set to go ahead very smoothly as it will be a step-by-step slow one.