Phone numbers in Little Falls, Minnesota
Little Falls has 13 phone prefixes in area code 320.
Biggest holders: AT&T Mobility, T-Mobile (including Sprint), CenturyLink / Lumen. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 54%
- Local phone company 23%
- Internet / business phone carrier 23%
Every prefix in Little Falls
Search the first six digits of a number in this list. If it's here, the number started in Little Falls with the carrier shown. If it isn't, check the Minnesota page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 320-232 | MetroPCS (T-Mobile) | Mobile carrier | 2003 |
| 320-360 | AT&T Mobility | Mobile carrier | – |
| 320-412 | T-Mobile (including Sprint) | Mobile carrier | 2003 |
| 320-414 | Charter / Spectrum | Internet / business phone carrier | 2006 |
| 320-431 | T-Mobile (including Sprint) | Mobile carrier | 2002 |
| 320-477 | AT&T Mobility | Mobile carrier | 2025 |
| 320-616 | CenturyLink / Lumen | Local phone company | – |
| 320-630 | Verizon Wireless | Mobile carrier | – |
| 320-631 | Allstream | Internet / business phone carrier | – |
| 320-632 | CenturyLink / Lumen | Local phone company | – |
| 320-635 | Onvoy | Internet / business phone carrier | – |
| 320-639 | Consolidated Telephone | Local phone company | 2006 |
| 320-733 | Verizon Wireless | Mobile carrier | 2004 |
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.