Phone numbers in Rockford, Illinois
Rockford has 133 phone prefixes in area codes 779, 815.
Biggest holders: AT&T (local phone), Verizon Wireless, T-Mobile (including Sprint). This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 34%
- Local phone company 29%
- Internet / business phone carrier 29%
- Paging service 2%
- Phone company 6%
Every prefix in Rockford
Search the first six digits of a number in this list. If it's here, the number started in Rockford with the carrier shown. If it isn't, check the Illinois page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 779-200 | Verizon Wireless | Mobile carrier | 2011 |
| 779-203 | Level 3 (Lumen) | Internet / business phone carrier | 2011 |
| 779-207 | Verizon Wireless | Mobile carrier | – |
| 779-208 | Verizon Wireless | Mobile carrier | 2012 |
| 779-210 | AT&T Enterprises | Phone company | 2011 |
| 779-221 | Onvoy | Internet / business phone carrier | 2010 |
| 779-238 | T-Mobile (including Sprint) | Mobile carrier | 2017 |
| 779-256 | Vonage America | Internet / business phone carrier | 2018 |
| 779-269 | MCImetro (Verizon Business) | Internet / business phone carrier | 2020 |
| 779-272 | Peerless Network Of Illinois | Internet / business phone carrier | 2020 |
| 779-274 | Csc Wireless | Mobile carrier | 2020 |
| 779-275 | Stratus Networks | Phone company | 2020 |
| 779-300 | T-Mobile (including Sprint) | Mobile carrier | 2011 |
| 779-323 | IP Horizon | Internet / business phone carrier | 2020 |
| 779-335 | Telnyx | Internet / business phone carrier | 2021 |
| 779-348 | Teleport Communications America | Internet / business phone carrier | 2007 |
| 779-351 | Windstream (PAETEC) | Internet / business phone carrier | 2022 |
| 779-363 | Nuso | Internet / business phone carrier | 2023 |
| 779-366 | Hd Carrier | Internet / business phone carrier | 2023 |
| 779-370 | Boost / Virgin Mobile | Mobile carrier | 2023 |
| 779-373 | Callworks | Phone company | 2023 |
| 779-405 | Leap Telecom | Phone company | 2024 |
| 779-423 | Comcast | Internet / business phone carrier | 2007 |
| 779-424 | Bandwidth | Internet / business phone carrier | 2025 |
| 779-428 | Wavenation | Phone company | 2025 |
| 779-500 | Teleport Communications America | Internet / business phone carrier | 2011 |
| 779-507 | Tpx Communications | Internet / business phone carrier | 2026 |
| 779-513 | CenturyLink / Lumen | Local phone company | 2015 |
| 779-537 | Verizon Wireless | Mobile carrier | 2007 |
| 779-577 | Skyetel | Internet / business phone carrier | 2021 |
| 779-666 | Onvoy | Internet / business phone carrier | 2017 |
| 779-678 | Fractel | Internet / business phone carrier | 2021 |
| 779-696 | Windstream (PAETEC) | Internet / business phone carrier | 2010 |
| 779-710 | Onvoy | Internet / business phone carrier | 2021 |
| 779-770 | AT&T Mobility | Mobile carrier | 2008 |
| 779-771 | AT&T Mobility | Mobile carrier | 2008 |
| 779-772 | AT&T Mobility | Mobile carrier | 2008 |
| 779-774 | Onvoy | Internet / business phone carrier | – |
| 779-797 | Terra Nova Telecom | Internet / business phone carrier | 2021 |
| 779-867 | Commio | Internet / business phone carrier | 2021 |
| 779-880 | 8X8 | Internet / business phone carrier | 2026 |
| 779-888 | Onvoy | Internet / business phone carrier | 2015 |
| 779-895 | Twilio | Internet / business phone carrier | 2022 |
| 779-970 | Verizon Wireless | Mobile carrier | – |
| 815-209 | Level 3 (Lumen) | Internet / business phone carrier | 2002 |
| 815-218 | Verizon Wireless | Mobile carrier | – |
| 815-222 | Verizon Wireless | Mobile carrier | – |
| 815-226 | AT&T (local phone) | Local phone company | – |
| 815-227 | AT&T (local phone) | Local phone company | – |
| 815-229 | AT&T (local phone) | Local phone company | – |
| 815-231 | AT&T (local phone) | Local phone company | – |
| 815-243 | UScellular | Mobile carrier | – |
| 815-262 | Verizon Wireless | Mobile carrier | – |
| 815-282 | AT&T (local phone) | Local phone company | – |
| 815-289 | UScellular | Mobile carrier | – |
| 815-296 | Telnyx | Internet / business phone carrier | 2019 |
| 815-298 | Verizon Wireless | Mobile carrier | – |
| 815-299 | UScellular | Mobile carrier | – |
| 815-312 | Onvoy | Internet / business phone carrier | 2008 |
| 815-315 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 815-316 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 815-319 | UScellular | Mobile carrier | – |
| 815-329 | AT&T Enterprises | Phone company | 2013 |
| 815-378 | T-Mobile (including Sprint) | Mobile carrier | – |
| 815-381 | AT&T (local phone) | Local phone company | – |
| 815-387 | AT&T (local phone) | Local phone company | – |
| 815-391 | AT&T (local phone) | Local phone company | – |
| 815-394 | AT&T (local phone) | Local phone company | – |
| 815-395 | AT&T (local phone) | Local phone company | – |
| 815-397 | AT&T (local phone) | Local phone company | – |
| 815-398 | AT&T (local phone) | Local phone company | – |
| 815-399 | AT&T (local phone) | Local phone company | – |
| 815-420 | Onvoy | Internet / business phone carrier | – |
| 815-470 | AT&T (local phone) | Local phone company | – |
| 815-480 | Spok | Paging service | 2001 |
| 815-484 | AT&T (local phone) | Local phone company | – |
| 815-489 | AT&T (local phone) | Local phone company | – |
| 815-490 | AT&T (local phone) | Local phone company | – |
| 815-491 | Nuso | Internet / business phone carrier | 2013 |
| 815-494 | UScellular | Mobile carrier | – |
| 815-505 | T-Mobile (including Sprint) | Mobile carrier | – |
| 815-509 | T-Mobile (including Sprint) | Mobile carrier | – |
| 815-516 | T-Mobile (including Sprint) | Mobile carrier | 2001 |
| 815-519 | T-Mobile (including Sprint) | Mobile carrier | – |
| 815-520 | Verizon Wireless | Mobile carrier | – |
| 815-540 | T-Mobile (including Sprint) | Mobile carrier | – |
| 815-543 | UScellular | Mobile carrier | – |
| 815-558 | UScellular | Mobile carrier | – |
| 815-601 | UScellular | Mobile carrier | – |
| 815-608 | T-Mobile (including Sprint) | Mobile carrier | 2002 |
| 815-621 | T-Mobile (including Sprint) | Mobile carrier | – |
| 815-633 | AT&T (local phone) | Local phone company | – |
| 815-636 | AT&T (local phone) | Local phone company | – |
| 815-637 | AT&T (local phone) | Local phone company | – |
| 815-639 | AT&T (local phone) | Local phone company | – |
| 815-654 | AT&T (local phone) | Local phone company | – |
| 815-668 | Onvoy | Internet / business phone carrier | 2009 |
| 815-670 | T-Mobile (including Sprint) | Mobile carrier | – |
| 815-703 | T-Mobile (including Sprint) | Mobile carrier | 2002 |
| 815-706 | Exiant Communications | Phone company | 2019 |
| 815-708 | Comcast | Internet / business phone carrier | 2006 |
| 815-713 | AT&T Mobility | Mobile carrier | 2001 |
| 815-720 | AT&T (local phone) | Local phone company | – |
| 815-721 | Teleport Communications America | Internet / business phone carrier | – |
| 815-742 | UScellular | Mobile carrier | – |
| 815-847 | AT&T Enterprises | Phone company | 2005 |
| 815-870 | Spok | Paging service | – |
| 815-871 | UScellular | Mobile carrier | – |
| 815-877 | AT&T (local phone) | Local phone company | – |
| 815-904 | AT&T Mobility | Mobile carrier | 2006 |
| 815-914 | MetroPCS (T-Mobile) | Mobile carrier | – |
| 815-921 | AT&T (local phone) | Local phone company | 2001 |
| 815-961 | AT&T (local phone) | Local phone company | – |
| 815-962 | AT&T (local phone) | Local phone company | – |
| 815-963 | AT&T (local phone) | Local phone company | – |
| 815-964 | AT&T (local phone) | Local phone company | – |
| 815-965 | AT&T (local phone) | Local phone company | – |
| 815-966 | AT&T (local phone) | Local phone company | – |
| 815-967 | AT&T (local phone) | Local phone company | – |
| 815-968 | AT&T (local phone) | Local phone company | – |
| 815-969 | AT&T (local phone) | Local phone company | – |
| 815-971 | AT&T (local phone) | Local phone company | – |
| 815-972 | AT&T (local phone) | Local phone company | – |
| 815-977 | MCImetro (Verizon Business) | Internet / business phone carrier | 2003 |
| 815-978 | Verizon Wireless | Mobile carrier | – |
| 815-979 | Verizon Wireless | Mobile carrier | – |
| 815-980 | Verizon Wireless | Mobile carrier | 2006 |
| 815-983 | American Messaging Services | Paging service | – |
| 815-985 | Verizon Wireless | Mobile carrier | – |
| 815-986 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 815-987 | AT&T (local phone) | Local phone company | – |
| 815-988 | UScellular | Mobile carrier | – |
| 815-997 | Windstream (PAETEC) | Internet / business phone carrier | 2003 |
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.