United States Area Codes
20 city area codes for United States (+1). Click any city for dialing details.
| City | Area Code | Full Dial (from US) |
|---|---|---|
| New York | 212 | 011 1 212 ... |
| Los Angeles | 213 | 011 1 213 ... |
| Chicago | 312 | 011 1 312 ... |
| Houston | 713 | 011 1 713 ... |
| Phoenix | 602 | 011 1 602 ... |
| Philadelphia | 215 | 011 1 215 ... |
| San Antonio | 210 | 011 1 210 ... |
| San Diego | 619 | 011 1 619 ... |
| Dallas | 214 | 011 1 214 ... |
| San Jose | 408 | 011 1 408 ... |
| Austin | 512 | 011 1 512 ... |
| Miami | 305 | 011 1 305 ... |
| Seattle | 206 | 011 1 206 ... |
| Denver | 303 | 011 1 303 ... |
| Washington DC | 202 | 011 1 202 ... |
| Boston | 617 | 011 1 617 ... |
| Atlanta | 404 | 011 1 404 ... |
| San Francisco | 415 | 011 1 415 ... |
| Las Vegas | 702 | 011 1 702 ... |
| Detroit | 313 | 011 1 313 ... |
How to read a United States phone number
A United States number is +1 followed by 10 digits. Knowing which of those digits mark a mobile is what tells you what the call will cost before you place it.
Inside United States, numbers are dialled with a leading 1. Drop it when calling from abroad — keeping it is the single most common reason an international call fails.
Mobile prefixes
Landline prefixes
Prefix ranges still identify a line as mobile or fixed even where a number has been ported between operators, because the mobile and fixed blocks are separate and numbers do not move between them. Operator identification from a prefix, by contrast, stopped being reliable once portability arrived.
When to call United States
What the clock reads in United States when it is mid-morning, early afternoon and evening where you are. Highlighted cells fall between 9:00 and 21:00 local time at the other end.
| Calling from | Offset | 09:00 | 13:00 | 19:00 |
|---|---|---|---|---|
| New York | +0:00 | 09:00 | 13:00 | 19:00 |
| Los Angeles | +3:00 | 12:00 | 16:00 | 22:00 |
| London | −5:00 | 04:00 | 08:00 | 14:00 |
| Dubai | −9:00 | 00:00 | 04:00 | 10:00 |
| Sydney | −16:00 | 17:00 | 21:00 | 03:00 |
Offsets calculated for mid-January. Countries that observe daylight saving shift by an hour for part of the year — the planner works out today's offset from your own device.
Other American destinations, cheapest first
Rates vary by more than a factor of ten inside a single region, because each one is set by what the operator at the far end charges to accept the call. Costa Rica is currently the cheapest place we publish a rate for near United States.
Free tools
All toolsFrequently asked questions
What is the country code for United States?
The country code for United States is +1. Dial this after the exit code (or use + on a mobile).
What are the area codes for United States?
United States has 20 city area codes listed on this page, including New York 212, Los Angeles 213, Chicago 312. Dial the country code first, then the area code without its trunk prefix, then the local number. The table above gives the full dial string for every city.
What does a United States phone number look like?
A United States number is written as +1 (212) 555-1234: the country code +1 followed by 10 digits. That total is fixed by the national numbering plan, so a number with one digit missing is a typo rather than a shorter valid number.
How can I tell if a United States number is a mobile?
By its leading digits. In United States, a national number of 10 digits beginning with 2-9 is a mobile. That still works after a number has been ported between operators, because mobile and fixed-line blocks are separate ranges and numbers do not move between them.
Do I need to drop the leading 0 when calling United States?
Yes. United States uses 1 as a trunk prefix for domestic calls. When dialing internationally, drop the leading 1 from the local number.
How much does it cost to call United States?
Telvio charges $0.07/min to United States landlines and $0.07/min to mobiles. Billing is per second with no connection fees, so you pay only for the seconds you talk.
