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Area code 815

Area code 815 serves Illinois, including Rockford, Joliet and Kankakee (Central time). It has been in service since January 1, 1947 and shares its area with 779.

Numbers starting with 815 drew 2,667 reports to the FTC from Aug 14, 2026 to Nov 11, 2026 and 827 complaints to the FCC since November 2023. The number on your screen can be faked, so an 815 number proves nothing about where a call came from.

Location
Illinois(chicago, IL Pmsa) and Chicago-Naperville-Elgin, IL-IN Metropolitan Statistical Area
Time zone
Central
In service since
January 1, 1947
Overlay
Same area as 779
Local calls
Dial 1 + 10 digits
Exchanges in use
786 of 792held by 53 carriers
Projected to run out
2Q 2045NANPA forecast 2026.2

Complaints about 815 numbers

Reports where the number on the consumer's caller ID (or, for the FCC, the number the caller asked them to call back) starts with 815. These are counts of what people reported; the agencies do not verify them.

FTC reports, Aug 14, 2026 to Nov 11, 2026

2,667

FCC complaints since November 2023

827

Different 815 numbers reported

3,131

FCC complaints naming an 815 number, by month

November 2023 to October 2026. Source: FCC Consumer Complaints Data.

Show as a table
MonthComplaints
November 202328
December 202322
January 202414
February 202418
March 202410
April 20244
May 202435
June 202413
July 202412
August 202424
September 202410
October 202424
November 202431
December 202426
January 202511
February 202558
March 202518
April 20258
May 202525
June 202562
July 202539
August 202522
September 20259
October 20250
November 20255
December 20254
January 20265
February 20269
March 20267
April 202639
May 202626
June 202630
July 202618
August 202631
September 202632
October 202662

What people said 815 calls were about

Subjects picked in FTC reports, August 14, 2026 to November 11, 2026. 1,552 of 2,667 reports were robocalls.

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SubjectReports
Other1,180
Reducing your debt (credit cards, mortgage, student loans)554
Dropped call or no message277
Calls pretending to be government, businesses, or family and friends145
Medical and prescriptions128
Computer and technical support46

Most reported 815 numbers

Numbers with at least five reports from three or more places in the last twelve months. Many of them are likely spoofed.

Places served by 815

NANPA lists 200 rate centers for 815. A rate center is the town or district a block of numbers is tied to for billing; sorted here by how many exchanges each holds.
  • Rockford89
  • Joliet62
  • Kankakee33
  • Woodstock28
  • Dekalb24
  • Freeport18
  • Lockport18
  • Mchenry18
  • Crystal Lake16
  • Plainfield15
  • Sterling15
  • Morris12
  • Ottawa11
  • Dixon9
  • La Salle9
  • Oglesby9
  • Princeton9
  • Minooka8
  • Belvidere7
  • New Lenox7
  • Streator7
  • Crescent City6
  • Frankfort6
  • Gardner6
Show all 200 rate centers

La Grange, Momence, Coal City, Manhattan, Marseilles, Mendota, Pontiac, Rochelle, Sycamore, Utica, Elwood, Galena, Grant Park, Harvard, Morrison, Seneca, Watseka, Apple River, Braidwood, Byron, Chadwick, Earlville, Elizabeth, Gilman, Lanark, Marengo, Milledgeville, New Milford, Oregon, Pearl City, Prophetstown, Rockton, Roscoe, Savanna, Shannon, Somonauk, South Beloit, Amboy, Ashkum, Ashton, Bureau, Cedarville, Chebanse, Chenoa, Cherry Valley, Clifton, Cornell, Cullom, Dakota, Davis, Durand, Dwight, East Dubuque, Forreston, Franklin Grove, Fulton, German Valley, Hanover, Harmon, Hebron, Hennepin, Herscher, La Moille, Ladd, Leaf River, Lena, Lyndon, Manlius, Manteno, Massbach, Mcconnell, Mount Carroll, Mount Morris, Newark, Orangeville, Pecatonica, Plattville, Polo, Poplar Grove, Richmond, Rock Cut, Saint Anne, Sandwich, Saunemin, Scales Mound, Seward, Sheridan, Shirland, Spring Grove, Spring Valley, Stillman Valley, Stockton, Sublette, Tampico, Thomson, Union, Warren, Waterman, Wilmington, Winnebago, Winslow, Wonder Lake, Beaverville, Cabery, Campus, Capron, Cedar Point, Chatsworth, Cissna Park, Coleta, Compton, Creston, Danforth, Depue, Donovan, Dover, Emington, Fairbury, Flanagan, Forrest, Garden Prairie, Genoa, Grand Detour, Grand Ridge, Granville, Graymont, Harding, Hinckley, Hooppole, Kempton, Kinsman, Kirkland, Leland, Leonore, Lisbon, Long Point, Lostant, Magnolia, Malta, Maple Park, Martinton, Mazon, Mcnabb, Milford, Monroe Center, Nelson, Northbrook, Odell, Ohio, Onarga, Paw Paw, Piper City, Putnam, Ransom, Reddick, Rutland, Shabbona, Sheffield, Sheldon, South Bergen, South Sharon, Stelle, Steward, Stockland, Strawn, Thomas, Tiskilwa, Toluca, Tonica, Verona, Walnut, Wellington, Wenona, West Brooklyn, Woodland, Wyanet.

Phone companies holding 815 exchanges

Each exchange (the three digits after the area code) is assigned to one carrier. 66% of these exchanges are pooled: their numbers are handed out in blocks of 1,000 to other carriers, so the holder below is not always the company serving a given number.

Exchanges held, top 8 of 53 carriers

NANPA central office code assignments, file of November 11, 2026.

Show as a table
Carrier (legal name)Exchanges
Illinois Bell Tel CO157
Frontier North, Inc. - IL133
Level 3 Communications, LLC - IL76
Cellco Partnership dba Verizon Wireless - IL50
Aero North Communications, Inc. - IL43
New Cingular Wireless PCS, LLC - IL42
T-Mobile USA, Inc.42
Teleport Communications America, LLC - IL22

When today's 815 exchanges were assigned

Exchanges still assigned, by year of assignment. Exchanges returned since are not counted.

Show as a table
YearExchanges
200148
200232
200312
200410
200512
200620
20071
20085
20097
201011
20121
20132
20142
20161
20183
20198
20222
20244
20251

Check an 815 number

A check shows the carrier and rate center of the number's exchange and every FTC and FCC report about that exact number. Why the number on screen can be fake.

Other area codes in Illinois

NANPA area code database and central office code file of November 11, 2026; FCC complaints November 1, 2023 to November 11, 2026; FTC reports August 14, 2026 to November 11, 2026. How the data is used.

Official sources (7)Show