606 Area Code — Kentucky
606 is a North American Numbering Plan area code for Kentucky, the United States. It covers about 889,789 people in 394 towns and 407 ZIP codes, including Somerset, London and Ashland.
| Field | Value |
|---|---|
| Area code | 606 |
| Country | United States (+1) |
| State / province | Kentucky |
| Type | Standalone (no other NANP code covers the same towns) |
| Time zone | Eastern and Louisville |
| Population covered | 889,789 |
| Towns covered | 394 |
| ZIP codes | 407 |
| Approx. centre | 37.455, -83.285 |
Where area code 606 is used
Area code 606 is assigned to Kentucky, the United States, inside the North American Numbering Plan. Numbers in the code are written (606) NXX-XXXX at home and +1 606 NXX-XXXX when dialled from outside Canada and the United States. Since the NANP moved to 10-digit dialling you must always include the area code, even for a local call.
Towns and cities in area code 606
The 394 towns below are the largest in the 606 footprint, ranked by population. Every one of them links to its own page with the full list of area codes and ZIP codes for that town.
| Town | County | Population | ZIP codes |
|---|---|---|---|
| Somerset | Pulaski County | 43,535 | 3 |
| London | Laurel County | 43,534 | 6 |
| Ashland | Boyd County | 39,810 | 4 |
| Corbin | Whitley County | 30,526 | 2 |
| Pikeville | Pike County | 23,754 | 2 |
| Morehead | Rowan County | 22,322 | 1 |
| Monticello | Wayne County | 18,606 | 1 |
| Williamsburg | Whitley County | 18,218 | 1 |
| Hazard | Perry County | 17,453 | 2 |
| Manchester | Clay County | 17,310 | 1 |
| Maysville | Mason County | 13,445 | 1 |
| Grayson | Carter County | 13,242 | 1 |
Counties covered
| County | ZIP codes |
|---|---|
| Pike County | 42 |
| Floyd County | 31 |
| Harlan County | 25 |
| Letcher County | 24 |
| Perry County | 23 |
| Knott County | 22 |
| Leslie County | 18 |
| Johnson County | 17 |
| Knox County | 16 |
| Bell County | 12 |
| Laurel County | 11 |
| Pulaski County | 10 |
Nearby area codes
How to dial area code 606
- Within North America: 606 + 7-digit number (606-NXX-XXXX). The leading 1 is optional on a mobile phone and required on most landlines for long-distance.
- From abroad: your country's international prefix, then 1, then 606, then the 7-digit number — for example 00 1 606 NXX-XXXX from most of Europe.
Frequently asked questions
What area code is 606?
606 is a North American Numbering Plan area code assigned to Kentucky, the United States. It covers about 889,789 people in 394 towns.
Is 606 a US or Canadian area code?
606 is a United States area code. Canada and the United States share the +1 country code, so both are part of the same numbering plan.
What time zone is area code 606 in?
Area code 606 is in the Eastern and Louisville time zone.
Do I have to dial 10 digits?
Yes. Every NANP call now requires the area code plus the seven-digit number, even for a local call.