Phone numbers in Mundelein, Illinois
Mundelein has 17 phone prefixes in area codes 224, 847.
Biggest holders: AT&T Mobility, AT&T (local phone), Teleport Communications America. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 24%
- Local phone company 24%
- Internet / business phone carrier 53%
Every prefix in Mundelein
Search the first six digits of a number in this list. If it's here, the number started in Mundelein with the carrier shown. If it isn't, check the Illinois page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 224-292 | AT&T Mobility | Mobile carrier | 2018 |
| 224-327 | Teleport Communications America | Internet / business phone carrier | 2020 |
| 224-358 | AT&T Mobility | Mobile carrier | 2010 |
| 224-360 | Bandwidth | Internet / business phone carrier | 2010 |
| 224-475 | Comcast | Internet / business phone carrier | 2007 |
| 224-596 | Onvoy | Internet / business phone carrier | 2024 |
| 224-602 | AT&T Mobility | Mobile carrier | 2016 |
| 224-778 | Level 3 (Lumen) | Internet / business phone carrier | 2005 |
| 224-864 | Peerless Network Of Illinois | Internet / business phone carrier | 2013 |
| 224-931 | AT&T Mobility | Mobile carrier | 2015 |
| 847-388 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 847-393 | Teleport Communications America | Internet / business phone carrier | – |
| 847-566 | AT&T (local phone) | Local phone company | – |
| 847-643 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 847-837 | AT&T (local phone) | Local phone company | – |
| 847-949 | AT&T (local phone) | Local phone company | – |
| 847-970 | AT&T (local phone) | Local 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.