Telephone area code 925 serves the inland East Bay part of the San Francisco Bay Area, including Concord, Martinez, Walnut Creek, and Livermore, California. It covers dozens of ZIP Codes.
The only "direct hits" are Washington, D.C. (202) and Portland, OR (971). Illinois gets a "close, but not quite" for 618, which has 618xx ZIP Codes around Urbana, IL, just to the north of area code 618. Iowa gets a "CBNQ" for 515: area code 515 = Des Moines, ZIP Code 515 = Council Bluffs. Florida comes close for 321, with ZIP Code 321 for Astor, FL, just north of area code 321. California has several where the ZIP Code prefix and area code are in the same state, but not in the same part of the state. For example, AC 925 = Walnut Creek/ZIP 925 = Riverside. Also, if there were any ZIP Codes beginning with 909, they would be somewhere in southern California, near AC 909. In Wisconsin, area code 534 is Eau Claire and the northern part of the state, while ZIP 534 is Racine. In Missouri, area code 636 is St. Charles, and ZIP Code 636 is Cape Girardeau. Area code 660 in northern MO (excl. KC,MO) is close to Kansas City, KS, suburbs (ZIP 660).
There is no such thing as "the ZIP code" (singular) for an area code, since area codes are considerably larger than ZIP codes. You will need to look up the ZIP code for a specific address in that area code.
The area code 479 is for the state of Arkansas. A zip code is for a city or part of a city. By area code alone you cannot determine a zip code.
ZIP Code 23401 is Keller, Virginia, which is in telephone area code 757.
Concord, California, is in area code 925.
Martinez, CA, is in area code 925.
The area code (832) is for the state of Texas. Within that area code there are 44 cities. You cannot determine a zip code by area code.
That is not a valid US zip code.
A zip code is for a town or a portion of a city. An area code is for a state or part of a state. An area code cannot determine the actual zip code location. The area code for (614) is for a large chunk of Ohio.
There are 300+ Zip Codes in area code 202, which is Washington, D.C.
Area code 308 is western Nebraska. It covers dozens of ZIP Codes.
Venturion is an area in South Africa. The zip code for that area is 20011, and around the Gauteng area.