Phone numbers in Quincy, Illinois
Quincy has 31 phone prefixes in area codes 217, 447.
Biggest holders: AT&T (local phone), UScellular, AT&T Mobility. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 35%
- Local phone company 26%
- Internet / business phone carrier 29%
- Phone company 10%
Every prefix in Quincy
Search the first six digits of a number in this list. If it's here, the number started in Quincy with the carrier shown. If it isn't, check the Illinois page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 217-209 | Comcast | Internet / business phone carrier | 2011 |
| 217-214 | Adams Telsystems | Phone company | 2001 |
| 217-221 | AT&T (local phone) | Local phone company | – |
| 217-222 | AT&T (local phone) | Local phone company | – |
| 217-223 | AT&T (local phone) | Local phone company | – |
| 217-224 | AT&T (local phone) | Local phone company | – |
| 217-228 | AT&T (local phone) | Local phone company | – |
| 217-231 | AT&T (local phone) | Local phone company | – |
| 217-242 | UScellular | Mobile carrier | – |
| 217-257 | AT&T Mobility | Mobile carrier | – |
| 217-277 | AT&T (local phone) | Local phone company | – |
| 217-316 | T-Mobile (including Sprint) | Mobile carrier | – |
| 217-430 | UScellular | Mobile carrier | – |
| 217-440 | UScellular | Mobile carrier | – |
| 217-506 | T-Mobile (including Sprint) | Mobile carrier | 2004 |
| 217-577 | AT&T Mobility | Mobile carrier | – |
| 217-592 | AT&T (local phone) | Local phone company | – |
| 217-617 | Level 3 (Lumen) | Internet / business phone carrier | 2002 |
| 217-640 | Teleport Communications America | Internet / business phone carrier | 2006 |
| 217-641 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 217-653 | AT&T Mobility | Mobile carrier | – |
| 217-695 | T-Mobile (including Sprint) | Mobile carrier | 2016 |
| 217-740 | UScellular | Mobile carrier | 2001 |
| 217-779 | AT&T Mobility | Mobile carrier | – |
| 217-919 | Level 3 (Lumen) | Internet / business phone carrier | 2001 |
| 447-243 | Nuso | Internet / business phone carrier | 2023 |
| 447-281 | IP Horizon | Internet / business phone carrier | 2023 |
| 447-316 | Wavenation | Phone company | 2025 |
| 447-468 | Ahoi | Phone company | 2026 |
| 447-487 | Twilio | Internet / business phone carrier | 2022 |
| 447-770 | Commio | Internet / business phone carrier | 2022 |
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.