Isleton, California, is in area code +1 916, the same as Sacramento.
(The plus sign means "insert your international access prefix here." From a GSM mobile phone, you can enter the number in full international format, starting with the plus sign. The most common prefix is 00, but Japan uses 010, Australia uses 0011, and many other countries use different prefixes.)
The address of the Isleton-Brannan-Andrus Historical Society is: Po Box 933, Isleton, CA 95641-0933
The address of the Isleton Branch Library is: 412 Union Street, Isleton, 95641 M
Martinez, CA, is in area code 925.
Victorville, CA, is in area code 760 and overlay code 442.
The phone number of the Isleton Branch Library is: 916-264-2700.
The area code for North Highlands, CA is 916.
San Clemente, CA, is in area code 949.
Cordelia, California, is in area code 707.
Cambria, CA, is in area code 805.
Concord, California, is in area code 925.
Petaluma, CA, is in area code 707.
Hayward, California, is in area code 510.