Phone numbers in Clearwater, Kansas
Clearwater has 3 phone prefixes in area code 620.
Biggest holders: Southern Kansas Tel, Twin Valley Communications. This is the local calling area (rate center) where those prefixes were first assigned.
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Every prefix in Clearwater
Search the first six digits of a number in this list. If it's here, the number started in Clearwater with the carrier shown. If it isn't, check the Kansas page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 620-530 | Twin Valley Communications | Phone company | 2005 |
| 620-545 | Southern Kansas Tel | Phone company | – |
| 620-584 | Southern Kansas Tel | Phone company | – |
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. Source: NANPA central office code records, 2026-10-10.