Guide. A cortisol test is done to measure the level of the hormone cortisol in the blood. The cortisol level may show problems with the adrenal glands or pituitary gland.
Berkeley lies within telephone area code 510 (until September 2, 1991, Berkeley was part of the 415 telephone code that now covers only San Francisco and Marin counties), and the postal ZIP codes are 94701 through 94710, 94712, and 94720 for the University of California campus.
AreaCode.org is your one-stop site for area code lookup, area code search, and area code locator. Area code 916 serves the Sacramento area of California. It was one of the original area codes assigned to California in 1947 but has been split twice since.16 Area Code 916. At AreaCode.org, you'll find helpful information on the 916 area code, including 916 area code location. Other phone area codes may be found using AreaCode.org's area code locator. Use the search function for area code look up.