Area Code 606

Kentucky

Area code 606 serves Kentucky, primarily Ashland, in the Central Time (CT) time zone. It has served the region since 01-Jan-1955.

Published:

Area Code Splits

Parts of this area code’s original geographic region were later assigned new area codes through splits. When a split occurs, some customers in the original area code region are assigned the new area code.

Split into: area code 859 (Covington).

Learn more about overlay and split area codes →

Demographics & Economics

Total Population
1,662,014
Population Density
54 people/sq mi
below U.S. average (U.S.: 93 people/sq mi)
Median Household Income
$43,905
below U.S. median (U.S.: $75,144)
Poverty Rate
24.0%
above U.S. average (U.S.: 11.5%)
Unemployment Rate
6.5%
above U.S. average (U.S.: 3.6%)
Education Attainment
Bachelor's Degree+
15.2%
below U.S. average (U.S.: 33.7%)
High School or Lower
47.9%

Statistics are population-weighted aggregations from Census ACS 5-year estimates. Population figures are approximate — see Sources & Methodology for details on how area code populations are derived.

See how this area code compares to all US area codes in the Statistics dashboard.

Time Zones

  • Central Time (CT)
  • Eastern Time (ET)

NANPA Relief Status

According to the latest NANPA analysis (July 2026), this area code is not currently listed as exhausting within the next 36 months. No relief planning is in progress for this NPA.

Source: NANPA NPA Relief Planning Reports · See all relief planning statuses

Current Time

Central Time (CT)
 
 
Eastern Time (ET)
 
 

This area code spans multiple time zones.

Prefix Utilization

Geographic Coverage

State

KY

Major Cities

  • Ashland
  • Somerset
  • Middlesborough
  • Maysville
  • Corbin
  • London
  • Pikeville
  • Flatwoods
  • Morehead
  • Monticello
  • Williamsburg
  • Hazard
  • Westwood
  • Paintsville
  • Prestonsburg
  • Grayson
  • Russell
  • Stanford
  • West Liberty
  • Stanton
  • Barbourville
  • Flemingsburg
  • Irvine
  • Louisa

and 118 more cities

Area Code 606 geographic coverage map (light mode)

Demographics

The estimated population served by area code 606 is approximately 1,662,014. The population density is 54 people per square mile, which is lower than the national average of 93. The median household income is $43,905, which is lower than the national median of $75,144. Approximately 15.2% of adults hold a bachelor's degree or higher, compared to the national rate of 33.7%. This rate is lower than the national average. The poverty rate stands at 24.0%, which is higher than the national rate of 11.5%.

History

Area code 606 was established in 1955 as a geographic area code. Over time, area code area code 859 was split from 606.

County Coverage

Population-weighted county share based on aggregated ZCTA population (100% = total mapped population for area code 606).

CountyPopulationShare
Laurel, KY106,0656.4%
Greenup, KY89,1305.4%
Carter, KY77,4294.7%
Pulaski, KY75,3314.5%
Clay, KY66,8584.0%
Whitley, KY63,8523.8%
Pike, KY61,0953.7%
Knox, KY56,6333.4%
Fleming, KY53,1403.2%
Boyd, KY52,1673.1%
Elliott, KY51,3773.1%
Knott, KY43,2382.6%
Lewis, KY42,7062.6%
Lee, KY40,0162.4%
Rowan, KY39,7512.4%
Floyd, KY37,7492.3%
Wayne, KY36,9762.2%
Casey, KY35,9842.2%
Lincoln, KY35,9362.2%
Estill, KY34,7062.1%
McCreary, KY34,4282.1%
Perry, KY31,2951.9%
Breathitt, KY30,4731.8%
Letcher, KY26,7761.6%
Rockcastle, KY26,6731.6%
Harlan, KY26,6581.6%
Lawrence, KY25,9021.6%
Jackson, KY25,7651.6%
Martin, KY25,7231.5%
Bell, KY24,3951.5%
Johnson, KY23,2561.4%
Owsley, KY21,8191.3%
Mason, KY20,9751.3%
Russell, KY17,8851.1%
Morgan, KY17,8331.1%
Garrard, KY17,6451.1%
Leslie, KY15,2100.9%
Bath, KY14,3090.9%
Powell, KY13,5000.8%
Bracken, KY12,5650.8%
Magoffin, KY12,4160.7%
Robertson, KY12,1630.7%
Adair, KY11,7540.7%
Claiborne, TN11,6980.7%
Clinton, KY9,6900.6%
Pickett, TN9,1380.5%
Wolfe, KY8,9580.5%
Menifee, KY8,8780.5%
Montgomery, KY7,8360.5%
Nicholas, KY5,7890.3%
Pendleton, KY5,6810.3%
Bourbon, KY2,6670.2%
Harrison, KY2,1220.1%

Area Code 606 Family Tree

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606859
2
Total Codes
1
Splits
0
Overlays
1
Max Depth

All Descendants

Code ▲StateType In Service Parent
859KYsplit01-Apr-2000606

Area code 606 was originally assigned in 01-Jan-1955 to serve KY. Over the years, it has generated 1 descendant area code through a combination of geographic splits and overlays as demand for telephone numbers grew.

Call Context

Mixed urban-rural area

This area code spans a mix of urban centers and rural communities across KY, with Ashland as a primary city.

Nearby Area Codes

Area codes geographically closest to 606.

Area code 859 map card showing Covington (light mode)
859KYCovingtonEastern Time (ET)Split
Area code 276 map card showing Richmond (light mode)
276VARichmondEastern Time (ET)Split
Area code 865 map card showing Knoxville (light mode)
865TNKnoxvilleEastern Time (ET)Split
Area code 502 map card showing Louisville (light mode)
502KYLouisvilleEastern Time (ET)Geographic

Other Area Codes in Kentucky

Area codes that also serve Kentucky, linked for easy comparison.