Phone numbers in Marshalltown, Iowa
Marshalltown has 16 phone prefixes in area code 641.
Biggest holders: CenturyLink / Lumen, MetroPCS (T-Mobile), UScellular. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 50%
- Local phone company 31%
- Internet / business phone carrier 12%
- Phone company 6%
Every prefix in Marshalltown
Search the first six digits of a number in this list. If it's here, the number started in Marshalltown with the carrier shown. If it isn't, check the Iowa page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 641-310 | Onvoy | Internet / business phone carrier | 2024 |
| 641-328 | T-Mobile (including Sprint) | Mobile carrier | 2001 |
| 641-351 | MetroPCS (T-Mobile) | Mobile carrier | 2001 |
| 641-352 | Windstream (PAETEC) | Internet / business phone carrier | 2002 |
| 641-354 | MetroPCS (T-Mobile) | Mobile carrier | 2018 |
| 641-485 | UScellular | Mobile carrier | – |
| 641-516 | Verizon Wireless | Mobile carrier | 2021 |
| 641-691 | AT&T Mobility | Mobile carrier | 2001 |
| 641-750 | Verizon Wireless | Mobile carrier | – |
| 641-751 | UScellular | Mobile carrier | – |
| 641-752 | CenturyLink / Lumen | Local phone company | 2001 |
| 641-753 | CenturyLink / Lumen | Local phone company | 2001 |
| 641-754 | CenturyLink / Lumen | Local phone company | 2001 |
| 641-758 | Heart Of Iowa Ventures | Phone company | 2009 |
| 641-844 | CenturyLink / Lumen | Local phone company | – |
| 641-854 | CenturyLink / Lumen | Local phone company | 2015 |
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.