Area code 620: where it is and who calls from it
Area code 620 is in Kansas.
Kansas (southern Kansas not including the Wichita Metropolitan Area)
| Where | Kansas |
|---|---|
| Time zone | Central and Mountain Time ยท local time |
| In service since | 2001 |
| Overlay | No |
| Prefixes assigned | 705 of 792 possible (89%) |
Where 620 numbers started
Every prefix is assigned to a rate center, the local calling area it was set up in. These are the biggest in 620, with how many prefixes each has.
Plus 197 smaller rate centers.
Who holds 620 numbers
- Mobile carrier 25%
- Local phone company 33%
- Internet / business phone carrier 21%
- Phone company 21%
| Carrier | Type | Prefixes | Share |
|---|---|---|---|
| AT&T (local phone) | Local phone company | 153 | 22% |
| CenturyLink / Lumen | Local phone company | 70 | 10% |
| Verizon Wireless | Mobile carrier | 59 | 8% |
| Level 3 (Lumen) | Internet / business phone carrier | 41 | 6% |
| Onvoy | Internet / business phone carrier | 34 | 5% |
| AT&T Mobility | Mobile carrier | 32 | 5% |
| Craw-kan Tel. Coop.,inc | Phone company | 26 | 4% |
| T-Mobile (including Sprint) | Mobile carrier | 23 | 3% |
| TON80 Communications | Internet / business phone carrier | 23 | 3% |
| UScellular | Mobile carrier | 21 | 3% |
Most prefixes are pooled: the 10,000 numbers in each are handed out in blocks of 1,000 to different carriers, and people can also take their numbers to another carrier. So the carrier shown is where the prefix started, not a guarantee about any one number.
States served: Kansas.
Other area codes in Kansas
Got a call from 620?
An area code tells you where a number was first assigned, not where the caller is. People keep their numbers when they move, and scammers can fake any number. If you weren't expecting the call, let it go to voicemail.
If the call shows a 620 number that matches the first six digits of your own, that's often neighbor spoofing. Use the box above to check the full number.
Area code facts from the NANPA area code database (updated 10/06/2026); prefixes and carriers from NANPA's central office code records (updated 2026-10-10). Place description adapted from Wikipedia, CC BY-SA 4.0.