Area code 989 for the area around Saginaw, Michigan, is the highest-numbered area code in the United States. Since area codes are not allowed to have '9' as the middle digit, 989 will remain the highest-numbered area code until we expand to 4-digit codes some time in the mid-21st century.
No, there is no area code 528 in the US.
The area code 516 is a US area code used in New York. The area code 516 is specifically used in Long Island, New York, in the Nassau county. The area code applies to both cell phones and landlines in the area.
The tri-state area
US area code 872 is Chicago, IL, overlaying 312 and 773.
The Southwestern US.
The 541 area code in the US is in Oregon.
That is not a valid US zip code.
An area code map of the US is available from allareacodes.com. Navigate to Area Code Map and at the bottom of the page there are large, printable versions of both the US and Canada maps.
Yes, 713 is an area code for Houston, Texas, USA, along with area codes 281 and 832, and future area code 346.
Almost, but not quite. Area code 701 is the US state of North Dakota.
There is no area code 811 in North America (USA, Canada, etc.).
Country code is 01, area code is 515