What area code is 310?

Area code 310 is West Los Angeles, California. Pacific time zone. It covers Beverly Hills, Santa Monica, Malibu, and surrounding areas.

What area code is 312?

Area code 312 is downtown Chicago, Illinois. Central time zone (UTC-6/-5). One of the original area codes from 1947.

What area code is 800?

800 is a toll-free area code with no geographic location. Calls to 800 numbers are free for the caller — the business pays. Introduced in 1967, it is the original and most recognized toll-free prefix.

What area code is 404?

Area code 404 is Atlanta, Georgia. Eastern time zone. It covers the city of Atlanta and was one of the original area codes from 1947.

NANPA (North American Numbering Plan Administration) is the organization that assigns and manages telephone area codes in the United States, Canada, and 18 other countries. NANPA assigns new area codes as existing ones fill up.

What area code is 305?

Area code 305 is Miami, Florida. Eastern time zone. It covers Miami, Miami Beach, Hialeah, and surrounding South Florida communities.

Area Code Lookup

Find the location, state, cities, and time zone for any US area code instantly. Search all 360+ active codes.

Quick Answer

There are 360+ active area codes in the North American Numbering Plan. Enter any 3-digit code above to find its state, region, cities, and time zone instantly. Most-searched: 212 (Manhattan, NY), 310 (Los Angeles, CA), 312 (Chicago, IL), 404 (Atlanta, GA), 800 (toll-free). Area codes are assigned by NANPA (North American Numbering Plan Administration).

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Frequently Asked Questions

What area code is 212?

Area code 212 is located in Manhattan, New York City. It was one of the original area codes established in 1947 and is one of the most recognizable codes in the US. It is overlaid by area codes 646 and 332.

How do I find out what area code a number is from?

Enter the first 3 digits of the phone number into the search box at the top of this page. You'll immediately see the state, region, cities, and time zone associated with that area code.

What are toll-free area codes?

Toll-free area codes — 800, 833, 844, 855, 866, 877, and 888 — are not tied to a geographic location. Calls to these numbers are free for the caller; the receiving business pays the cost. They are used nationwide by companies for customer service lines.

How many area codes are there in the US?

There are over 335 active geographic area codes in the US, plus 7 toll-free prefixes. New area codes are assigned by NANPA (North American Numbering Plan Administration) as existing codes fill up, often as overlays covering the same geographic area.

What is an overlay area code?

An overlay area code serves the same geographic region as an existing code. Overlays are introduced when a region runs out of available phone numbers. For example, area code 646 overlays 212 in Manhattan — both serve New York City, and you must dial all 10 digits for local calls.