Phone numbers in Clear Lake, Iowa
Clear Lake has 6 phone prefixes in area code 641.
Biggest holders: Verizon Wireless, Clear Lake Independent Tel, Mcc Telephony Of Iowa. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 50%
- Internet / business phone carrier 17%
- Phone company 33%
Every prefix in Clear Lake
Search the first six digits of a number in this list. If it's here, the number started in Clear Lake with the carrier shown. If it isn't, check the Iowa page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 641-231 | Verizon Wireless | Mobile carrier | 2001 |
| 641-355 | Clear Lake Independent Tel | Phone company | – |
| 641-357 | Clear Lake Independent Tel | Phone company | – |
| 641-440 | Mcc Telephony Of Iowa | Internet / business phone carrier | 2007 |
| 641-525 | Verizon Wireless | Mobile carrier | – |
| 641-529 | Verizon Wireless | Mobile carrier | – |
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.