Area code
Area code 779 — Rockford, IL
Illinois · in service since March 17, 2007
Area code 779 covers parts of Illinois; the place with the most of its prefixes is Rockford. It is an overlay: 815 serves the same area, so neighbors can have different area codes.
Overlay, same area: 815
Local time in Rockford
Spam reports from Sep 23 – Oct 22, 2026
Average #343 of 461 codes
173 FTC complaints
Consumer reports, not verified by the FTC.
See the reports- Time zoneCentral Time
- Local calls1 + 10 digits
- Prefixes368 assigned
- Runs out~1Q 2044
- Unwanted call?Block & report
Spam call reports about 779 numbers
Complaints by week
Sep 11 – Oct 22, 2026Show as table
| Week starting | Complaints |
|---|---|
| Sep 7 (3 days) | 15 |
| Sep 14 | 54 |
| Sep 21 | 47 |
| Sep 28 | 46 |
| Oct 5 | 20 |
| Oct 12 | 23 |
| Oct 19 (4 days) | 52 |
Compared with all codes
- Robocalls
- 83%all codes 75%
- Callers with the same code
- 16%all codes 35%
- Rank by complaints
- #343of 461 · middle half
- FCC complaints, Oct 2025 – Sep 2026
- 227 about text messages
What the calls were about
Sep 11 – Oct 22, 2026
| Subject | Complaints | |
|---|---|---|
| Reducing your debt (credit cards, mortgage, student loans) | 93 36% | |
| Calls pretending to be government, businesses, or family and friends | 25 10% | |
| Dropped call or no message | 12 5% | |
| Medical & prescriptions | 6 2% | |
| Warranties & protection plans | 3 1% | |
| Energy, solar, & utilities | 1 <1% |
Where the people who complained live
Sep 11 – Oct 22, 2026
| State | Complaints | |
|---|---|---|
| Illinois | 94 37% | |
| Florida | 16 6% | |
| California | 14 5% | |
| New York | 14 5% | |
| North Carolina | 12 5% |
October 2026 (partial) report · most reported
Consumer reports, not verified by the FTC · source
Source: FTC Do Not Call complaints created Sep 11 – Oct 22, 2026. They are reported by consumers and are not verified by the FTC; caller ID can be spoofed (how we count).
Source: FCC Consumer Complaints data, unwanted calls filed Oct 1, 2025 – Sep 30, 2026, by caller ID; not verified by the FCC.
Area code 779 location and prefixes
| Exchange (NANPA) | Place | County | Prefixes |
|---|---|---|---|
| ROCKFORD | Rockford | spans 2 counties | 44 |
| JOLIET | Joliet | spans 2 counties | 26 |
| MOMENCE | Momence | Kankakee County | 20 |
| DE KALB | DeKalb | DeKalb County | 15 |
| FREEPORT | Freeport | Stephenson County | 12 |
| KANKAKEE | Kankakee | Kankakee County | 9 |
| WOODSTOCK | Woodstock | McHenry County | 9 |
| FRANKFORT | Frankfort | spans 2 counties | 8 |
| FORREST | Forrest | Livingston County | 7 |
| MCHENRY | McHenry | McHenry County | 6 |
Plus 129 smaller exchange areas.
Source: NANPA CO codes of Oct 23, 2026; places: U.S. Census Bureau, matched by DialWhere (how).
NANPA record
- Location
- Illinois
- Assigned by NANPA
- February 6, 2004
- Local dialing
- 1 + 10 digits (NANPA: 1+10D)
- NANPA planning letters
- PL-354
Source: NANPA, NPA database of Oct 24, 2026.
Is 779 running out of numbers?
Previous forecast (October 2025): 2042, moved later by 2 years.
Forecast exhaust year by edition
Source: NANPA NRUF forecast, April 2026 edition.
Who holds 779 prefixes
The five largest of 45 original holders
As listed by NANPA, not today’s carrier.
| Holder (as listed) | Prefixes | |
|---|---|---|
| Onvoy, LLC | 48 13% | |
| New Cingular Wireless PCS, LLC | 43 12% | |
| Stratus Networks | 35 10% | |
| T-Mobile USA, Inc. | 25 7% | |
| Fractel, LLC | 24 7% |
Source: NANPA CO codes of Oct 23, 2026.
Questions about area code 779
What area code is 779?
An Illinois area code, in service since March 17, 2007.
Where is 779 area code, and what time zone is it in?
Rockford, IL; Central Time.
Why am I getting spam calls from 779?
173 FTC complaints from Sep 23 – Oct 22, 2026, most often about debt reduction (not verified by the FTC; caller ID can be spoofed).
Will 779 get a new area code?
NANPA forecasts exhaust in 1Q 2044; no relief planning listed.