Area Codes & Zip Codes

Area Codes

• Telephone Area Codes in Los Angeles County by Community
• Telephone Area Code History for Los Angeles County
• Old Telephone Exchange Names for Los Angeles County
• Your Area Code Says a Lot About You

Wireless Communications

• Wireless Use in Los Angeles County

Using 911

• Using 911 in Los Angeles County

Zip Codes

• Postal Zip Code Look-up for Los Angeles County
• Los Angeles County Zip Codes Listed by Community
• Los Angeles County Communities by Zip Codes 90001 to 90899
• Los Angeles County Communities by Zip Codes 91001 to 93599

L.A. Video

• L.A. Video: Roller Skating Telephone Operators, Los Angeles, 1929
• L.A. Video: Ask a Dispatcher - California Highway Patrol