Phone numbers in Chicago Heights, Illinois
Chicago Heights has 70 phone prefixes in area codes 464, 708.
Biggest holders: T-Mobile (including Sprint), AT&T (local phone), AT&T Mobility. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 50%
- Local phone company 20%
- Internet / business phone carrier 26%
- Paging service 1%
- Phone company 3%
Every prefix in Chicago Heights
Search the first six digits of a number in this list. If it's here, the number started in Chicago Heights with the carrier shown. If it isn't, check the Illinois page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 464-249 | Onvoy | Internet / business phone carrier | 2024 |
| 464-251 | AT&T Mobility | Mobile carrier | 2024 |
| 464-256 | AT&T Mobility | Mobile carrier | 2025 |
| 464-284 | Onvoy | Internet / business phone carrier | 2026 |
| 464-529 | Fractel | Internet / business phone carrier | 2022 |
| 464-768 | TON80 Communications | Internet / business phone carrier | 2022 |
| 708-228 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 708-248 | Comcast | Internet / business phone carrier | 2006 |
| 708-252 | T-Mobile (including Sprint) | Mobile carrier | 2010 |
| 708-265 | T-Mobile (including Sprint) | Mobile carrier | 2011 |
| 708-283 | AT&T (local phone) | Local phone company | – |
| 708-300 | MCImetro (Verizon Business) | Internet / business phone carrier | 2012 |
| 708-314 | T-Mobile (including Sprint) | Mobile carrier | 2012 |
| 708-323 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 708-351 | T-Mobile (including Sprint) | Mobile carrier | 2001 |
| 708-355 | Rcn Telecom Services Of Illinios | Phone company | – |
| 708-374 | T-Mobile (including Sprint) | Mobile carrier | 2008 |
| 708-400 | AT&T Mobility | Mobile carrier | 2011 |
| 708-412 | T-Mobile (including Sprint) | Mobile carrier | 2023 |
| 708-441 | Teleport Communications America | Internet / business phone carrier | – |
| 708-481 | AT&T (local phone) | Local phone company | – |
| 708-503 | AT&T (local phone) | Local phone company | – |
| 708-506 | T-Mobile (including Sprint) | Mobile carrier | 2013 |
| 708-510 | AT&T Mobility | Mobile carrier | 2008 |
| 708-513 | AT&T Mobility | Mobile carrier | 2008 |
| 708-515 | AT&T Mobility | Mobile carrier | 2010 |
| 708-539 | T-Mobile (including Sprint) | Mobile carrier | – |
| 708-543 | T-Mobile (including Sprint) | Mobile carrier | 2006 |
| 708-573 | T-Mobile (including Sprint) | Mobile carrier | 2015 |
| 708-575 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 708-654 | AT&T Mobility | Mobile carrier | 2009 |
| 708-663 | T-Mobile (including Sprint) | Mobile carrier | 2006 |
| 708-664 | T-Mobile (including Sprint) | Mobile carrier | 2021 |
| 708-668 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 708-673 | T-Mobile (including Sprint) | Mobile carrier | 2013 |
| 708-677 | T-Mobile (including Sprint) | Mobile carrier | 2016 |
| 708-679 | AT&T (local phone) | Local phone company | – |
| 708-709 | AT&T (local phone) | Local phone company | – |
| 708-720 | AT&T (local phone) | Local phone company | – |
| 708-722 | T-Mobile (including Sprint) | Mobile carrier | 2017 |
| 708-733 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 708-739 | T-Mobile (including Sprint) | Mobile carrier | 2021 |
| 708-747 | AT&T (local phone) | Local phone company | – |
| 708-748 | AT&T (local phone) | Local phone company | – |
| 708-753 | AT&T (local phone) | Local phone company | – |
| 708-754 | AT&T (local phone) | Local phone company | – |
| 708-755 | AT&T (local phone) | Local phone company | – |
| 708-756 | AT&T (local phone) | Local phone company | – |
| 708-757 | AT&T (local phone) | Local phone company | – |
| 708-758 | AT&T (local phone) | Local phone company | – |
| 708-760 | Eon Telecom | Phone company | 2024 |
| 708-765 | AT&T Mobility | Mobile carrier | 2021 |
| 708-769 | T-Mobile (including Sprint) | Mobile carrier | 2002 |
| 708-773 | Fractel | Internet / business phone carrier | 2021 |
| 708-833 | T-Mobile (including Sprint) | Mobile carrier | 2005 |
| 708-843 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 708-852 | T-Mobile (including Sprint) | Mobile carrier | 2016 |
| 708-855 | Fractel | Internet / business phone carrier | 2019 |
| 708-856 | Comcast | Internet / business phone carrier | – |
| 708-882 | T-Mobile (including Sprint) | Mobile carrier | 2016 |
| 708-890 | T-Mobile (including Sprint) | Mobile carrier | 2007 |
| 708-898 | Teleport Communications America | Internet / business phone carrier | – |
| 708-920 | T-Mobile (including Sprint) | Mobile carrier | 2021 |
| 708-936 | Spok | Paging service | – |
| 708-964 | T-Mobile (including Sprint) | Mobile carrier | 2015 |
| 708-965 | T-Mobile (including Sprint) | Mobile carrier | 2009 |
| 708-973 | T-Mobile (including Sprint) | Mobile carrier | 2013 |
| 708-980 | T-Mobile (including Sprint) | Mobile carrier | 2014 |
| 708-983 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 708-996 | T-Mobile (including Sprint) | Mobile carrier | 2013 |
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.