The 606 area code covers Corbin, Pikeville and 108 more places in Kentucky.
Area code 606 is in Kentucky, on Eastern Time and Central Time. In the 606 area, phone numbers are given out most in Pike County, then Whitley and Pulaski counties. It has been in service since 1955.
- Where
- 8 counties in Kentucky, mostly Pike County, Whitley County and Pulaski County
- Time zone
- Eastern Time and Central Time
- In service since
- 1955
- Shares its area with
- No other area code
- Prefixes in use
- 635
- How to dial
- Local calls inside 606 can still be dialed with just 7 digits.
Find out who called you from a 606 number.
Enter the full 10-digit number to see who it is listed to and the city and state on the listing. It is the same free check as our who called me lookup. To see only the caller ID name on the number, use our free CNAM lookup. To see whether it is a mobile, a landline or a VoIP line, use our free VoIP checker. To see which carrier a (606) number is on today, use our free carrier lookup.
Works for US & Canada numbers. Enter a 10-digit number, e.g. (415) 555-0132.
Free & rate-limited. No signup required to try.
Corbin holds 6% of the phone prefixes in area code 606.
A prefix is the three digits after the area code, and NANPA assigns each one to a town. Counting the 635 prefixes in use shows where 606 numbers are actually given out.
- Corbin37 prefixes, 6%
- Pikeville33 prefixes, 5%
- Ashland25 prefixes, 4%
- Somerset24 prefixes, 4%
- London21 prefixes, 3%
- Morehead15 prefixes, 2%
- Hazard15 prefixes, 2%
- Middlesboro14 prefixes, 2%
Also served: Whitesburg, Paintsville, Barbourville and Manchester and 98 smaller places.
Windstream holds the most phone number prefixes in area code 606: 117 of 635.
NANPA, which runs the North American numbering plan, assigns each prefix (the three digits after the area code) to one carrier. Here is how the 635 prefixes in use in 606 divide between carriers; holders this page does not name are grouped as other carriers.
| Carrier | Prefixes | Share |
|---|---|---|
| WindstreamLandline company | 117 | 18% |
| AT&T MobilityMobile network | 95 | 15% |
| BellSouth (AT&T)AT&T's landline company | 51 | 8% |
| Appalachian Wireless | 42 | 7% |
| Level 3 (Lumen)Lumen's business and wholesale network | 38 | 6% |
| T-MobileMobile network | 22 | 3% |
| 31 other carriers | 270 | 43% |
63% of these prefixes are pooled, which means the blocks of 1,000 numbers inside them can belong to other carriers. Any number can also have been moved to another carrier since, so this shows who holds the prefixes, not who serves a given number.
Want the carrier of one exact number? Our free carrier lookup checks it, because numbers move between carriers.
Source: NANPA central office code assignments, October 1, 2026.
606 has been split once since 1955.
1955
606 goes into service.
2000
On April 1, 2000, 859 splits off and takes part of the 606 area.
A 606 number on your screen can still be a scam, because caller ID is easy to fake.
- Let an unknown call go to voicemail. A real caller leaves a message; a robocaller usually does not.
- Look the number up with the box above before you call back, because calling back tells a robocaller your line is live.
- Hang up on anyone who wants gift cards, crypto or a wire transfer, or asks you to read out a code that was just texted to you.
- Report unwanted robocalls at reportfraud.ftc.gov, or paste a suspicious message into our free scam checker.
The area codes closest to 606 are 859, 502 and 865.
This list measures the distance between the centres of each area, across state lines, and shows codes that share one area together.
Kentucky has 4 other area codes.
These are the questions people ask most about area code 606.
Where is area code 606?
606 covers Corbin, Pikeville, Ashland and Somerset and 106 more places in Kentucky. In the 606 area, phone numbers are given out most in Pike County, then Whitley and Pulaski counties.
What state is area code 606 in?
Kentucky. 606 is a Kentucky area code on Eastern Time and Central Time.
What cities use area code 606?
The places holding the most 606 prefixes are Corbin, Pikeville, Ashland, Somerset, London, Morehead, Hazard and Middlesboro, out of 110 places in all. The count comes from NANPA's prefix assignments as of October 1, 2026.
Which phone company owns area code 606?
No single phone company owns 606. NANPA's records show Windstream holds the most 606 prefixes, 117 of 635, followed by AT&T Mobility and BellSouth (AT&T). Numbers move between carriers, so check one exact number with a carrier lookup.
What time zone is area code 606 in?
606 is on Eastern Time and Central Time.
When did area code 606 start?
606 went into service in 1955.
How do I dial a 606 number?
Local calls inside 606 can still be dialed with just 7 digits.
Is 606 a toll-free number?
No. 606 is a regular area code for Corbin and Pikeville in Kentucky, not a toll-free one. The toll-free codes in North America are 800, 833, 844, 855, 866, 877 and 888.
What area codes are near 606?
The closest are 859 (Lexington, Kentucky), 502 (Louisville, Kentucky), 865 (Knoxville, Tennessee) and 423/729 (Chattanooga, Tennessee), measured between the centres of each area.
Who called me from a 606 number?
Enter the full 10-digit number in the lookup above. It returns the listed owner where there is a public record, where the number is registered, and whether it is a mobile, a landline or a VoIP line.
Is area code 606 a scam?
606 is a real Kentucky area code, so the code itself is not a warning sign. Scam callers fake local-looking numbers on purpose, so judge the call by what the caller asks for, and look the number up before calling back.
Put this lookup on your site: our free area code widget takes two lines of code and shows any US area code's state, time zone and local time.
Source: NANPA, the North American Numbering Plan Administrator: its area code database and prefix assignments, as of October 1, 2026.