Area code 620: Kansas
Area code 620 is a US state area code for Kansas, on Central Time and Mountain Time. It has 705 prefixes in service across 257 rate centers, the largest being Hutchinson, Garden City and Dodge City. NANPA lists no overlay code for it. Local calls there take 10 digits.
Local time in area code 620
America/Chicago
America/Denver
Prefixes in service
705 of 792 possible
257 rate centers
Area code 620 facts
| Location | Kansas, United States |
|---|---|
| Time zones | Central Time and Mountain Time |
| Overlays | None |
| Split from | 316 |
| In service since | February 3, 2001 |
| Local calls | 10 digits; toll calls 1 + 10 digits |
| Carrier | Not shown. An area code is where a number was issued; numbers port between carriers. Check line type |
Which cities and towns use area code 620?
NANPA records each prefix against a rate center, the local billing area a number belongs to, usually named after its main town. These are the 620 rate centers with the most prefixes in service. 245 smaller ones aren't listed.
| Rate center | Prefixes |
|---|---|
| Hutchinson | 28 |
| Garden City | 18 |
| Dodge City | 16 |
| Emporia | 15 |
| Pittsburg | 15 |
| Great Bend | 14 |
| Liberal | 13 |
| Coffeyville | 12 |
| Independence | 10 |
| Winfield | 10 |
| Arkansas City | 10 |
| Mcpherson | 9 |
Source: NANPA central office code assignments, file dated 10/17/2026. Each prefix holds up to 10,000 numbers.
How do I dial a 620 number?
NANPA's dialling plan for 620: local calls inside the code take 10 digits, toll calls 1 + 10 digits. From another area code, dial 1 first. From abroad, use +1. The examples use 555-0147, from a range reserved for fictional numbers.
| Local call inside 620 | 620-555-0147 |
|---|---|
| From another US or Canadian area code | 1-620-555-0147 |
| From outside North America | +1 620 555 0147 |
| E.164, for CRMs and SMS tools | +16205550147 |
When did area code 620 start?
Area code 620 went into service on February 3, 2001, split from 316. It has no overlay, so every number in its area still starts with it.
Tools for 620 numbers
- Area code lookup
Look up any code or a whole list of numbers, or find the codes for a state or city.
- Area code time zone
Local time for a list of numbers, with a callable-now flag.
- NPA-NXX lookup
Rate center and state for one prefix, a level below the area code.
- TCPA calling hours checker
Whether it's inside the federal 8 a.m. to 9 p.m. calling window there now.
Next step
A 620 number tells you where it was issued, not what it is now.
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Area code 620 questions
- What state is area code 620?
- Area code 620 is in Kansas, United States. Its largest rate centers by number of prefixes are Hutchinson, Garden City, Dodge City, Emporia and Pittsburg.
- What time zone is area code 620 in?
- Central Time and Mountain Time. The code crosses a time zone line, so the local time depends on where in the area the number was issued.
- Does area code 620 have an overlay?
- Not as of NANPA's file dated 10/16/2026. Every number in its area uses 620.
- When did area code 620 start?
- Area code 620 went into service on February 3, 2001, split from 316.
- Is a 620 number a cell phone or a landline?
- The area code can't tell you. In the US and Canada mobiles, landlines and VoIP lines share area codes and prefixes, and numbers move between carriers and line types. Only a live line-type lookup answers it for one number.
- How many phone numbers does area code 620 have?
- 705 of its 792 possible prefixes are in service, and each prefix holds up to 10,000 numbers. That counts prefixes assigned to carriers, not numbers in use.
Other area codes in Kansas
Sources
Location, overlays, in-service date and dialling plan: NANPA NPA database, file dated 10/16/2026. Prefixes and rate centers: NANPA central office code assignments, 10/17/2026. Time zones mapped to the IANA time zone database. By the SimpleVerifier Team; how we build these pages.