Metropolitan area codes: 1977-1985
- 00080
- Akron, OH
- 00160
- Albany-Schenectady-Troy, NY
- 00360
- Anaheim-Santa Ana-Garden Grove, CA
- 00520
- Atlanta, GA
- 00720
- Baltimore, MD
- 01000
- Birmingham, AL
- 01120
- Boston, MA
- 01280
- Buffalo, NY
- 01600
- Chicago, IL
- 01640
- Cincinnati, OH
- 01680
- Cleveland, OH
- 01840
- Columbus, OH
- 01920
- Dallas, TX
- 02080
- Denver, CO
- 02160
- Detroit, MI
- 02800
- Fort Worth, TX
- 02960
- Gary-Hammond-East Chicago, IN
- 03120
- Greensboro-Winston Salem-High Point, NC
- 03360
- Houston, TX
- 03480
- Indianapolis, IN
- 03760
- Kansas City, MO-KS
- 04480
- Los Angeles-Long Beach, CA
- 05000
- Miami, FL
- 05080
- Milwaukee, WI
- 05120
- Minneapolis-St. Paul, MN
- 05380
- Nassau-Suffolk, NY
- 05560
- New Orleans, LA
- 05600
- New York, NY
- 05640
- Newark, NJ
- 05720
- Norfolk-Portsmouth, VA
- 06040
- Patterson-Clifton-Passaic, NY
- 06160
- Philadelphia, PA
- 06280
- Pittsburgh, PA
- 06440
- Portland, OR-WA
- 06840
- Rochester, NY
- 06920
- Sacramento, CA
- 07040
- St. Louis, MO-IL
- 07280
- San Bernardino-Riverside-Ontario, CA
- 07320
- San Diego, CA
- 07360
- San Francisco-Oakland, CA
- 07400
- San Jose, CA
- 07600
- Seattle-Everett, WA
- 08280
- Tampa-St. Petersburg, FL
- 08840
- Washington, DC-MD-VA
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