Phone numbers in Half Day, Illinois
Half Day has 24 phone prefixes in area codes 224, 847.
Biggest holders: MCImetro (Verizon Business), AT&T (local phone), Teleport Communications America. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 8%
- Local phone company 33%
- Internet / business phone carrier 58%
Every prefix in Half Day
Search the first six digits of a number in this list. If it's here, the number started in Half Day with the carrier shown. If it isn't, check the Illinois page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 224-274 | Teleport Communications America | Internet / business phone carrier | 2017 |
| 224-351 | MCImetro (Verizon Business) | Internet / business phone carrier | 2008 |
| 224-352 | MCImetro (Verizon Business) | Internet / business phone carrier | 2014 |
| 224-377 | T-Mobile (including Sprint) | Mobile carrier | 2005 |
| 224-543 | Level 3 (Lumen) | Internet / business phone carrier | 2005 |
| 224-568 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 224-737 | MCImetro (Verizon Business) | Internet / business phone carrier | 2009 |
| 224-742 | TON80 Communications | Internet / business phone carrier | 2022 |
| 847-276 | MetroPCS (T-Mobile) | Mobile carrier | – |
| 847-383 | Teleport Communications America | Internet / business phone carrier | – |
| 847-415 | Windstream (PAETEC) | Internet / business phone carrier | 2001 |
| 847-442 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 847-478 | AT&T (local phone) | Local phone company | – |
| 847-552 | AT&T (local phone) | Local phone company | 2009 |
| 847-575 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 847-613 | Level 3 (Lumen) | Internet / business phone carrier | 2004 |
| 847-634 | AT&T (local phone) | Local phone company | – |
| 847-771 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 847-793 | AT&T (local phone) | Local phone company | – |
| 847-821 | AT&T (local phone) | Local phone company | – |
| 847-876 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 847-883 | AT&T (local phone) | Local phone company | – |
| 847-913 | AT&T (local phone) | Local phone company | – |
| 847-955 | 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.