A house for rent in Joliet or Kankakee draws calls from many strangers.
List it with an 815 number, take the calls on your own phone and burn the number once the lease is signed.
Local 815 numbers
Get an 815 phone number for Rockford, Joliet and northern Illinois.
Ask for 815 when you create a number on ExpressNumber, and the number you hand out reads as Rockford, Joliet and the towns around them. It rings the phone you already carry, and you burn it in one tap.
$0 todayLive in about a minute
This is how you get an 815 number.
- Start your 7 days free and open Create a number.
- Type 815 as the area code and give the number a name.
- Hand it out. Calls ring the phone you already carry, and texts land in your inbox.
- Burn it in one tap when you are done. Calls and texts to it stop at once.
9:41
Your numbers
House for rent
(815) 555-0132
Forwarding
Used tractor
(815) 555-0167
Texts only
Roofing quote
(815) 555-0116
Blocked
People ask for 815 when the search is in Rockford, Joliet or Kankakee.
A used tractor or a truck for sale near Freeport brings texts from buyers all week.
Post an 815 number with the photos, set it to Texts only and keep your own number off the ad.
A moving job or a roofing quote in Rockford ends in follow-up calls.
Give each company its own 815 number. Block the ones you did not choose.
This is where an 815 number is from.
Area code 815 serves northern Illinois, as the numbering administrator puts it, and 779 is laid over the same area. The Illinois Commerce Commission says it runs from the Wisconsin border to the Iowa line and the Indiana border, outside the Chicago suburbs.
The administrator names Belvidere, Crystal Lake, De Kalb, Dixon, Freeport, Hanover, Joliet, Kankakee, Ottawa, Pontiac, Princeton, Rockford, Sterling and Watseka. Chicago and its suburbs use other codes.
Rockford, Joliet and northern Illinois, IL
Area code 815 and the codes around it, oldest first.
1947
815
This code
2007
779
Shares the area
- Rockford
- Joliet
- Kankakee
- De Kalb
- Crystal Lake
- Freeport
- La Salle
- Ottawa
- Sterling
- Dixon
- Pontiac
- Belvidere
These are the facts about area code 815.
From the public records of the body that runs US phone numbering, read October 21, 2026.
- Place
- Rockford, Joliet and northern Illinois, Illinois
- In service since
- 1947
- Local calls are dialed with
- 1 plus ten digits
- Shares its area with
- 779 (2007)
815 is one of the original codes of 1947. The Illinois Commerce Commission approved an overlay on February 4, 2004, and 779 was laid over 815, entering service on March 17, 2007.
Dialing 1 plus all ten digits for local calls became mandatory on February 17, 2007.
Try it free for 7 days.
Then pick the plan that fits how many numbers you hand out.
Basic
7 days free$9.99/mo
- 5 numbers, one for each site, store or dealer
- 100 forwarded minutes a month
- Burn a number in one tap
- Extra numbers $1 a month each
Pro
7 days free$29.99/mo
- 100 numbers
- 1,000 forwarded minutes a month
- A number per vendor, client or listing
- Extra numbers 50¢ a month each
$0 today. Monthly plans, cancel any time.
People ask these questions about getting an 815 number.
More in the full FAQ.
Create a number in your dashboard, type 815 as the area code and give it a name, such as House for rent. It is live in about a minute. You do not need to live in Illinois: calls ring the phone you already carry.
Yes, for taking calls and texts. A roofer, a tutor or a mover in Rockford can put an 815 number on the flyer and the website, take the calls on their own phone and burn the number when the job is done.
Yes. The 815 area takes in Rockford, Joliet, Kankakee, De Kalb, Dixon and Ottawa. 779 numbers cover the same area.
No. Your numbers are receive-only: they take calls and texts, and they never make them. You answer calls on your own phone, and you cannot reply to a text from the inbox.
You get 7 days free and pay $0 today. After 7 days your plan starts: $9.99 a month for Basic or $29.99 a month for Pro. Cancel before then and you pay nothing.
More area codes
Every fact on this page comes from public numbering records.
The state, the dates and the related codes are rows of the North American Numbering Plan Administrator's area code database. The places are from its planning letters and the state’s own pages. Read October 21, 2026.
Put 815 on a number you can burn.
Hand out a number you can burn. Keep the one your family calls.
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