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Where is Area Code 815?

The 815 Area Code is located in the state of Illinois. Area Code 815 is one of the 269 3-digit telephone area codes in the USA. It covers roughly 7,569,999 unique phone numbers and 3,845,107 individuals near the cities of Chicago, Rockford, and Joliet.

Cities Located in the 815 Area Code

The most populous cities in area code 815 are: Chicago, Rockford, Joliet, Dekalb, and Plainfield.

Other cities in the 815 area code include: Crystal Lake, Romeoville, Northbrook, McHenry, Kankakee, New Lenox, Belvidere, Woodstock, Lockport, Freeport, Loves Park, Ottawa, Yorkville, Sycamore, Sterling, Dixon, Morris, La Grange Park, Streator, Pontiac, Roscoe, La Salle, Harvard, Utica, Rochelle, Rock Falls, Manteno, Marengo, Princeton, Rockton, South Beloit, Manhattan, Mendota, Braidwood, Wilmington, Spring Grove, Spring Valley, Watseka, Genoa, Marseilles, Poplar Grove, Morrison, Oglesby, Wonder Lake, Oregon, Byron, Fairbury, Fulton, Galena, Cherry Valley, Momence, Mount Morris, Winnebago, Savanna, Lena, Seneca, Sheridan, Amboy, Pecatonica, Elwood, Polo, Prophetstown, Hinckley, Richmond, Stockton, Capron, Chenoa, Forreston, Gilman, East Dubuque, Earlville, Kirkland, Walnut, Mount Carroll, Lanark, Waterman, Clifton, Herscher, Warren, Saint Anne, Toluca, Durand, Granville, Onarga, Hebron, Maple Park, Grant Park, Milford, Gardner, Sheldon, Ladd, Chebanse, Newark, Forrest, Stillman Valley, Flanagan, Franklin Grove, Milledgeville, Malta, Ashton, Chatsworth, Wyanet, Shabbona, Mazon, Odell, Orangeville, Piper City, Tiskilwa, Pearl City, Leland, La Moille, Cissna Park, Hennepin, Paw Paw, Tonica, Elizabeth, Sheffield, Ashkum, Crescent City, Lyndon, Davis, Hanover, Shannon, Leaf River, Tampico, Danforth, Cullom, Grand Ridge, Chadwick, Thomson, Scales Mound, Dakota, German Valley, Union, Ohio, Monroe Center, Apple River, Sublette, Lostant, Cornell, Ransom, Saunemin, Reddick, Martinton, Magnolia, Steward, Beaverville, Malden, Mc Nabb, Wellington, Winslow, Compton, Verona, Donovan, Rutland, Caledonia, Long Point, Garden Prairie, West Brooklyn, Harmon, Kempton, Strawn, Kinsman, Emington, Cabery, Coal City, Dwight, Frankfort, Graymont, Mc Connell, Minooka, Putnam, Sandwich, Somonauk, and Wenona.

About Chicago, Rockford, and Joliet, Illinois

Chicago, officially the City of Chicago, is the third-most populous city in the United States. With over 2.7 million residents, it is the most populous city in the state of Illinois, and the Midwestern United States. It is the county seat of Cook County. The Chicago metropolitan area, often referred to as Chicagoland, has nearly 10 million people and is the third-largest in the U.S. Chicago is called the architecture capital of the United States. In terms of wealth and economy, Chicago is considered one of the most important business centers in the world. Chicago was incorporated as a city in 1837, near a portage between the Great Lakes and the Mississippi River watershed, and grew rapidly in the mid-nineteenth century. Positioned along Lake Michigan, the city is an international hub for finance, commerce, industry, technology, telecommunications, and transportation: O'Hare International Airport is the second- busiest airport in the world when measured by aircraft traffic ; the region also has the largest number of U.S. highways and rail road freight. In 2012, Chicago was listed as an alpha global city by the Globalization and World Cities Research Network, and ranked seventh in the world in the 2016 Global Cities Index. Chicago has the third-largest gross metropolitan product in the United States—about $640 billion according to 2015 estimates. The city has one of the world's largest and most diversified economies with no single industry employing more than 14% of the workforce. In 2016, Chicago hosted over 54 million domestic and international visitors, a new record making it one of the top visited cities in the nation. Landmarks in the city include Millennium Park, Navy Pier, the Magnificent Mile, Art Institute of Chicago, Museum Campus, the Willis (Sears) Tower, Museum of Science and Industry, and Lincoln Park Zoo. Chicago's culture includes the visual arts, novels, film, theater, especially improvisational comedy, and music, particularly jazz, blues, soul, hip hop, gospel and house music. There are many colleges and universities in the Chicago area; among these, Northwestern University, University of Chicago, and the University of Illinois at Chicago are classified as "highest research" doctoral universities. Chicago also has professional sports teams in each of the major professional leagues. The city has many nicknames, the best-known being the Windy City.

Rockford is the third largest city in the U.S. state of Illinois, the 171st most populous city in the United States, the largest city in Illinois outside of the Chicago metropolitan area, and the city of the 148th most populous metropolitan area in the United States. It is the county seat of Winnebago County and is located on both banks of the Rock River in far northern Illinois. According to 2010 census data, the City of Rockford had a population of 152,871, with an outlying metropolitan area population of 348,360, which was estimated to have decreased to 150,251 and 344,623, respectively, by July 2013. Settled between 1834 and 1835, Rockford was strategically positioned between Chicago and Galena and thus became suitable for industrial development. Rockford was notable for its output of heavy machinery and tools; by the twentieth century, it was the second leading center of furniture manufacturing in the nation, and 94th largest city. Its decline, emblematic of other cities in the Rust Belt, led to economic diversification into automotive, aerospace, and healthcare industries, as well as the undertaking of various tourism and downtown revitalization efforts.Referred to as the Forest City, Rockford is known for various venues of cultural or historical significance, including Anderson Japanese Gardens, Klehm Arboretum, Tinker Swiss Cottage, the BMO Harris Bank Center, the Coronado Theatre, the Laurent House, and the Burpee Museum of Natural History. Its contributions to music are noted in the Mendelssohn Club, the oldest music club in the nation, and performers such as Phantom Regiment and Cheap Trick.

149,395 (2016) Joliet (/ ˈ dʒ oʊ l i. ɛ t / or / dʒ oʊ l i ˈ ɛ t /) is a city in Kendall and Will counties in the U.S. state of Illinois, 40 miles (64 km) southwest of Chicago. It is the county seat of Will County. At the 2010 census, the city was the fourth largest in Illinois, with a population of 147,433. A special census done in 2016 puts Joliet's population at 149,395 making it the 3rd largest city in Illinois.

What Time Zone is Area Code 815?

The 815 area code lies within the Central Daylight Time Zone (or CDT). The current time in Central Daylight Time is 3:06 PM on Apr 20, 2021.

Neighborhood Demographics

Statistics based on US Census data for Chicago
35 y/o
Median Age
The median age for Chicago was sourced from the US Census
$55K
Median Income
The median income for Chicago was sourced from the US Census
$218K
Median Home Value
The median home value for Chicago was sourced from the US Census
3.85M
Total Population
The total population for Chicago was sourced from the US Census

Nearby Area Codes in Illinois

1,226,998 phone numbers
725,115 people
Rockford, Joliet, Dekalb

Phone Number Prefixes in the 815 Area Code

Unknown
--
Unknown
--
Bandwidth.com
La Salle, IL
Bandwidth.com
Rockford, IL
Verizon Wireless
Oglesby, IL
USA Mobility
Joliet, IL
USA Mobility
Crystal Lake, IL
Neutral Tandem
La Grange Park, IL
AT&T Illinois
Woodstock, IL
Verizon Wireless
Joliet, IL
Unknown
Fulton, IL
Verizon Wireless
Rockford, IL
AT&T Mobility
Joliet, IL
Unknown
--
T-Mobile
Joliet, IL
Verizon Wireless
Sterling, IL
Sprint
Kankakee, IL
First Communications
New Lenox, IL
Verizon Wireless
Kankakee, IL
Sprint
Dekalb, IL
Verizon Wireless
Rockford, IL
Sprint
Crystal Lake, IL
AT&T Illinois
La Salle, IL
AT&T
Lockport, IL
Verizon Wireless
Rockford, IL
AT&T Illinois
La Salle, IL
AT&T Illinois
La Salle, IL
Frontier
Milledgeville, IL
AT&T Illinois
Rockford, IL
AT&T Illinois
Rockford, IL
AT&T Mobility
Oglesby, IL
AT&T Illinois
Rockford, IL
Level 3
Plainfield, IL
AT&T Illinois
Rockford, IL
Frontier
Freeport, IL
Frontier
Freeport, IL
Frontier
Byron, IL
Frontier
Freeport, IL
AT&T Mobility
Woodstock, IL
Unknown
Gardner, IL
Verizon Wireless
Freeport, IL
Frontier
Pecatonica, IL
Neutral Tandem
Rockford, IL
American Messaging
Northbrook, IL
Neutral Tandem
Rockford, IL
U.S. Cellular
Rockford, IL
CenturyLink
Mount Carroll, IL
AT&T Mobility
Woodstock, IL
Frontier
Earlville, IL
Frontier
Pecatonica, IL
Frontier
Durand, IL
Neutral Tandem
Grand Ridge, IL
Sprint
La Salle, IL
CenturyLink
Rock Falls, IL
AT&T Mobility
Oglesby, IL
Frontier
Kempton, IL
AT&T Illinois
Plainfield, IL
Bandwidth.com
Minooka, IL
Stelle Telephone Company
Cabery, IL
Illinois Vally Cellular
Streator, IL
AT&T Mobility
Joliet, IL
CenturyLink
Thomson, IL
Sprint
Joliet, IL
Sprint
Crystal Lake, IL
Verizon Wireless
Rockford, IL
Verizon Wireless
Kankakee, IL
Frontier
Waterman, IL
Unknown
Gilman, IL
Frontier
Freeport, IL
AT&T Illinois
Plainfield, IL
First Communications
Onarga, IL
First Communications
Danforth, IL
Neutral Tandem
Lanark, IL
XO Communications
McHenry, IL
T-Mobile
Joliet, IL
CenturyLink
Savanna, IL
AT&T Mobility
Joliet, IL
Verizon Wireless
Freeport, IL
Sprint
Crystal Lake, IL
Bandwidth.com
Frankfort, IL
Sprint
Kankakee, IL
American Messaging
Kankakee, IL
AT&T
Joliet, IL
U.S. Cellular
Galena, IL
AT&T Illinois
Loves Park, IL
Neutral Tandem
Dekalb, IL
CenturyLink
Dixon, IL
CenturyLink
Dixon, IL
Frontier
Hinckley, IL
First Communications
Verona, IL
CenturyLink
Dixon, IL
U.S. Cellular
Rockford, IL
Level 3
Minooka, IL
U.S. Cellular
Freeport, IL
Bergen Telephone Company
South Beloit, IL
AT&T Illinois
Romeoville, IL
USA Mobility
La Grange Park, IL
T-Mobile
Kankakee, IL
Unknown
Rockford, IL
Frontier
Freeport, IL
Verizon Wireless
Rockford, IL
U.S. Cellular
Rockford, IL
AT&T Illinois
Chicago, IL
Level 3
Crystal Lake, IL
Sprint
Joliet, IL
Illinois Vally Cellular
Princeton, IL
Level 3
Kankakee, IL
Unknown
Gardner, IL
Level 3
Lockport, IL
AT&T Mobility
McHenry, IL
Level 3
Woodstock, IL
Aero Communications
Shannon, IL
Level 3
Utica, IL
Unknown
--
YMax Communications
Rockford, IL
Level 3
Ottawa, IL
Bandwidth.com
Manhattan, IL
Level 3
Rockford, IL
TDS Telecom
Rockford, IL
Level 3
Crescent City, IL
Level 3
Morris, IL
T-Mobile
Rockford, IL
Neutral Tandem
Kankakee, IL
XO Communications
Woodstock, IL
Comcast
McHenry, IL
AT&T Mobility
Belvidere, IL
Neutral Tandem
Ottawa, IL
AT&T Mobility
Joliet, IL
AT&T Mobility
Oglesby, IL
Level 3
Plainfield, IL
Level 3
Lockport, IL
T-Mobile
Rockford, IL
First Communications
Crescent City, IL
Level 3
McHenry, IL
Frontier
Cherry Valley, IL
Level 3
Woodstock, IL
AT&T Illinois
Woodstock, IL
Frontier
Winnebago, IL
Frontier
Milledgeville, IL
AT&T Illinois
Woodstock, IL
AT&T Illinois
Woodstock, IL
Frontier
Granville, IL
Peerless Network
La Moille, IL
AT&T Mobility
Joliet, IL
AT&T Mobility
Joliet, IL
AT&T Mobility
Oglesby, IL
AT&T Illinois
McHenry, IL
Verizon Wireless
Woodstock, IL
Level 3
Gardner, IL
Verizon Wireless
Woodstock, IL
Bandwidth.com
Kankakee, IL
YMax Communications
McHenry, IL
Aero Communications
Franklin Grove, IL
Verizon Wireless
Kankakee, IL
Level 3
Kankakee, IL
Verizon Wireless
Woodstock, IL
Verizon Wireless
Woodstock, IL
Verizon Wireless
Woodstock, IL
AT&T Illinois
Crystal Lake, IL
AT&T Illinois
Seneca, IL
FairPoint
Cornell, IL
CenturyLink
Harmon, IL
Aero Communications
Sublette, IL
Level 3
Manhattan, IL
Unknown
German Valley, IL
AT&T Illinois
McHenry, IL
Level 3
Morris, IL
Neutral Tandem
Reddick, IL
Level 3
Ottawa, IL
Unknown
Winslow, IL
Neutral Tandem
Lostant, IL
Frontier
Lena, IL
Verizon Wireless
Kankakee, IL
Level 3
Utica, IL
AT&T Illinois
Romeoville, IL
Bandwidth.com
Elwood, IL
Verizon Wireless
Dwight, IL
U.S. Cellular
Dekalb, IL
Frontier
Ohio, IL
Level 3
Crescent City, IL
Sprint
Rockford, IL
Frontier
Walnut, IL
Level 3
Sterling, IL
AT&T Illinois
Rockford, IL
AT&T Mobility
Woodstock, IL
AT&T Mobility
Crescent City, IL
Neutral Tandem
Malta, IL
AT&T Illinois
McHenry, IL
Sprint
Kankakee, IL
AT&T Illinois
Rockford, IL
Sprint
McHenry, IL
AT&T Illinois
South Beloit, IL
Neutral Tandem
Braidwood, IL
AT&T Illinois
Rockford, IL
Kinsman Mutual Telephone Company
Kinsman, IL
Neutral Tandem
Monroe Center, IL
AT&T Illinois
Rockford, IL
AT&T Illinois
Rockford, IL
Neutral Tandem
Steward, IL
AT&T Illinois
Rockford, IL
AT&T Illinois
Rockford, IL
AT&T Illinois
Rockford, IL
MEDIACOM
Morrison, IL
Level 3
Kankakee, IL
Unknown
Galena, IL
Sprint
McHenry, IL
Sprint
Crystal Lake, IL
Sprint
Joliet, IL
Neutral Tandem
Byron, IL
AT&T Illinois
Romeoville, IL
Bandwidth.com
Utica, IL
Verizon Wireless
Joliet, IL
Level 3
La Salle, IL
Unknown
--
Level 3
Frankfort, IL
First Communications
Morris, IL
Bandwidth.com
Earlville, IL
AT&T Illinois
Seneca, IL
AT&T Illinois
Morris, IL
Neutral Tandem
Braidwood, IL
First Communications
Manhattan, IL
Verizon Wireless
Pontiac, IL
Unknown
Malta, IL
Bandwidth.com
Herscher, IL
First Communications
Saint Anne, IL
AT&T Illinois
Elwood, IL
AT&T Illinois
Elwood, IL
Level 3
Crystal Lake, IL
Peerless Network
Herscher, IL
Neutral Tandem
Saint Anne, IL
First Communications
Martinton, IL
Frontier
Sheldon, IL
First Communications
McHenry, IL
AT&T Illinois
Ottawa, IL
AT&T Illinois
Watseka, IL
AT&T Illinois
Ottawa, IL
AT&T Illinois
Ottawa, IL
Neutral Tandem
Beaverville, IL
AT&T Illinois
Plainfield, IL
Frontier
Putnam, IL
Frontier
Tampico, IL
AT&T Illinois
Plainfield, IL
Verizon Wireless
Dixon, IL
Verizon Wireless
Sterling, IL
Tonica Telephone Company
Tonica, IL
Unknown
Pearl City, IL
AT&T Illinois
Crystal Lake, IL
Unknown
Sheffield, IL
Unknown
Oglesby, IL
Frontier
Spring Valley, IL
First Communications
Mazon, IL
Frontier
Dakota, IL
AT&T Mobility
Momence, IL
AT&T Mobility
Woodstock, IL
Neutral Tandem
Toluca, IL
Unknown
Ashton, IL
Unknown
Sheffield, IL
AT&T Illinois
Crystal Lake, IL
Frontier
Franklin Grove, IL
Neutral Tandem
Cissna Park, IL
AT&T Illinois
Braidwood, IL
AT&T Illinois
Crystal Lake, IL
First Communications
Joliet, IL
XO Communications
Lockport, IL
AT&T Illinois
New Lenox, IL
AT&T Illinois
New Lenox, IL
AT&T Illinois
Frankfort, IL
Unknown
Grant Park, IL
Unknown
Grant Park, IL
AT&T Illinois
Minooka, IL
AT&T Illinois
Manteno, IL
AT&T Illinois
Frankfort, IL
AT&T Illinois
Rockford, IL
Illinois Vally Cellular
Watseka, IL
AT&T Illinois
Momence, IL
Unknown
Watseka, IL
AT&T Mobility
Joliet, IL
Level 3
Yorkville, IL
AT&T Illinois
Wilmington, IL
AT&T Illinois
Crystal Lake, IL
AT&T Illinois
Manhattan, IL
AT&T Illinois
Crystal Lake, IL
USA Mobility
Rockford, IL
Illinois Vally Cellular
La Grange Park, IL
Sprint
Woodstock, IL
Sprint
Joliet, IL
AT&T Illinois
Rockford, IL
AT&T Illinois
New Lenox, IL
First Communications
Donovan, IL
First Communications
Plainfield, IL
Illinois Vally Cellular
La Grange Park, IL
AT&T Illinois
Rockford, IL
AT&T Illinois
Rockford, IL
T-Mobile
Rockford, IL
Unknown
Apple River, IL
Frontier
Lanark, IL
U.S. Cellular
Rockford, IL
Frontier
Leland, IL
Frontier
Sheridan, IL
Frontier
Compton, IL
Frontier
Somonauk, IL
U.S. Cellular
Sterling, IL
MEDIACOM
Marseilles, IL
Sprint
Dekalb, IL
First Communications
Woodstock, IL
Sprint
Mendota, IL
First Communications
Gardner, IL
T-Mobile
Rockford, IL
Level 3
Union, IL
Level 3
Momence, IL
AT&T Mobility
Dekalb, IL
Sprint
Rockford, IL
AT&T Mobility
Streator, IL
Unknown
--
First Communications
Lockport, IL
Bandwidth.com
Morris, IL
AT&T Mobility
Joliet, IL
Level 3
Watseka, IL
Level 3
Rockford, IL
T-Mobile
Dekalb, IL
Peerless Network
Coal City, IL
Sprint
Rockford, IL
Verizon Wireless
Rockford, IL
AT&T Illinois
Minooka, IL
Frontier
Kirkland, IL
AT&T
Kankakee, IL
Comcast
Lockport, IL
TDS Telecom
South Beloit, IL
XO Communications
Crystal Lake, IL
Neutral Tandem
Woodstock, IL
AT&T Mobility
McHenry, IL
Verizon Wireless
Woodstock, IL
Sprint
Joliet, IL
Verizon Wireless
Joliet, IL
USA Mobility
Morris, IL
Indiana Paging Network
La Grange Park, IL
Level 3
Frankfort, IL
AT&T Illinois
Sterling, IL
USA Mobility
La Grange Park, IL
Frontier
Prophetstown, IL
Frontier
Mendota, IL
Frontier
Mendota, IL
Sprint
Rockford, IL
U.S. Cellular
Freeport, IL
Frontier
Tampico, IL
U.S. Cellular
Rockford, IL
Frontier
Belvidere, IL
AT&T Mobility
Joliet, IL
AT&T Mobility
Joliet, IL
Frontier
Belvidere, IL
AT&T Illinois
Sterling, IL
Sprint
Kankakee, IL
Neutral Tandem
Grant Park, IL
Neutral Tandem
Lanark, IL
Neutral Tandem
Lockport, IL
PAETEC
Joliet, IL
Unknown
East Dubuque, IL
Unknown
--
Bandwidth.com
Plainfield, IL
Sprint
Joliet, IL
U.S. Cellular
Rockford, IL
Neutral Tandem
Chenoa, IL
Sprint
Harvard, IL
Frontier
Rochelle, IL
Frontier
Rochelle, IL
Frontier
Dakota, IL
AT&T Illinois
Sterling, IL
Unknown
Morrison, IL
AT&T Mobility
Belvidere, IL
Neutral Tandem
Emington, IL
AT&T Illinois
Marengo, IL
Neutral Tandem
Capron, IL
Level 3
Sandwich, IL
TELNYX
Shannon, IL
Level 3
Marengo, IL
Sprint
Kankakee, IL
Aero Communications
Harmon, IL
AT&T Mobility
Woodstock, IL
Neutral Tandem
Polo, IL
AT&T Illinois
Plainfield, IL
AT&T Illinois
McHenry, IL
Sprint
La Salle, IL
Level 3
Rockford, IL
Neutral Tandem
Spring Grove, IL
T-Mobile
Joliet, IL
Aero Communications
Morrison, IL
AT&T Illinois
Dwight, IL
T-Mobile
Morris, IL
FairPoint
Ransom, IL
Verizon Wireless
Ottawa, IL
AT&T Illinois
Lockport, IL
Frontier
Fulton, IL
U.S. Cellular
Sterling, IL
Frontier
Hanover, IL
Verizon Wireless
Kankakee, IL
T-Mobile
Dekalb, IL
Frontier
Apple River, IL
Level 3
Oregon, IL
Unknown
Marengo, IL
Neutral Tandem
Garden Prairie, IL
Frontier
Elizabeth, IL
Frontier
Freeport, IL
Verizon Wireless
Joliet, IL
U.S. Cellular
Rockford, IL
First Communications
Kankakee, IL
T-Mobile
Kankakee, IL
Neutral Tandem
Belvidere, IL
Neutral Tandem
Grant Park, IL
First Communications
Ottawa, IL
Bitwise Communications
Flanagan, IL
T-Mobile
Rockford, IL
AT&T Illinois
Plainfield, IL
Bitwise Communications
Cornell, IL
Unknown
--
Bitwise Communications
Graymont, IL
AT&T Mobility
Dixon, IL
T-Mobile
Kankakee, IL
Verizon Wireless
Mendota, IL
T-Mobile
Freeport, IL
Verizon Wireless
Ottawa, IL
AT&T Mobility
Freeport, IL
Aero Communications
Rockton, IL
Peerless Network
Minooka, IL
Sprint
Rockford, IL
AT&T Illinois
Sterling, IL
Frontier
Roscoe, IL
Frontier
Rockton, IL
AT&T Illinois
Sterling, IL
AT&T Illinois
Sterling, IL
Frontier
Paw Paw, IL
Unknown
West Brooklyn, IL
Frontier
Durand, IL
T-Mobile
Joliet, IL
Verizon Wireless
Sterling, IL
AT&T Illinois
Sterling, IL
AT&T Illinois
Loves Park, IL
AT&T Illinois
Coal City, IL
Neutral Tandem
Chatsworth, IL
AT&T Illinois
Loves Park, IL
AT&T Illinois
Loves Park, IL
Frontier
La Moille, IL
AT&T Illinois
Loves Park, IL
Verizon Wireless
Ottawa, IL
Verizon Wireless
Rockford, IL
Level 3
Minooka, IL
Frontier
Malden, IL
AT&T Mobility
Crescent City, IL
Neutral Tandem
Stillman Valley, IL
Unknown
Tiskilwa, IL
Neutral Tandem
Cullom, IL
Frontier
Hebron, IL
Unknown
Gardner, IL
MetroPCS
Freeport, IL
Sprint
Joliet, IL
CenturyLink
Dixon, IL
Frontier
Wonder Lake, IL
AT&T Illinois
Loves Park, IL
Neutral Tandem
Coal City, IL
T-Mobile
Freeport, IL
Neutral Tandem
Forrest, IL
TELNYX
Newark, IL
Frontier
Hennepin, IL
Unknown
Lockport, IL
T-Mobile
Morris, IL
Neutral Tandem
Momence, IL
Frontier
Spring Valley, IL
Frontier
Spring Valley, IL
Unknown
Ottawa, IL
Verizon Wireless
Joliet, IL
Unknown
Utica, IL
T-Mobile
Rockford, IL
YMax Communications
McHenry, IL
Sprint
Rockford, IL
Sprint
Joliet, IL
Frontier
Streator, IL
Frontier
Streator, IL
AT&T Mobility
Streator, IL
Frontier
Spring Grove, IL
Level 3
Plainfield, IL
Verizon Wireless
Elizabeth, IL
Frontier
Richmond, IL
YMax Communications
McHenry, IL
Neutral Tandem
Manhattan, IL
Verizon Wireless
Rockford, IL
Unknown
Milford, IL
Unknown
Crescent City, IL
Frontier
Chadwick, IL
AT&T Mobility
Joliet, IL
Neutral Tandem
Piper City, IL
Verizon Wireless
Woodstock, IL
Neutral Tandem
Strawn, IL
Frontier
Cullom, IL
Sprint
Joliet, IL
Unknown
Utica, IL
Frontier
Fairbury, IL
Sprint
Joliet, IL
Unknown
Clifton, IL
AT&T Illinois
Newark, IL
Aero Communications
Roscoe, IL
Unknown
Chebanse, IL
Unknown
Ashkum, IL
Frontier
Wyanet, IL
Unknown
--
T-Mobile
Woodstock, IL
Neutral Tandem
Saunemin, IL
Sprint
Rockford, IL
YMax Communications
South Beloit, IL
Cimco Communications
Morris, IL
Neutral Tandem
Rockford, IL
Level 3
Gilman, IL
Verizon Wireless
Rockford, IL
Peerless Network
Coal City, IL
T-Mobile
Morris, IL
Unknown
--
Sprint
Harvard, IL
AT&T Mobility
Rockford, IL
Sprint
Joliet, IL
AT&T Mobility
Joliet, IL
Sprint
Sterling, IL
Level 3
New Lenox, IL
U.S. Cellular
Sterling, IL
Sprint
Princeton, IL
AT&T Illinois
Rockford, IL
Verizon Wireless
Rockford, IL
AT&T Illinois
Joliet, IL
AT&T Illinois
Joliet, IL
AT&T Illinois
Joliet, IL
AT&T Illinois
Joliet, IL
AT&T Illinois
Joliet, IL
AT&T Illinois
Joliet, IL
Frontier
Wonder Lake, IL
AT&T Illinois
Joliet, IL
AT&T Illinois
Joliet, IL
AT&T Illinois
Plainfield, IL
Frontier
Oregon, IL
Comcast
Plainfield, IL
Frontier
Mount Morris, IL
AT&T Mobility
Joliet, IL
Peerless Network
Newark, IL
Sharon Telephone Company
Capron, IL
Leaf River Telephone Company
Leaf River, IL
Sprint
Sycamore, IL
AT&T Illinois
Joliet, IL
AT&T Illinois
Joliet, IL
U.S. Cellular
Rockford, IL
Frontier
Graymont, IL
AT&T Illinois
Joliet, IL
Unknown
Warren, IL
Marseilles Telephone Company
Marseilles, IL
Frontier
East Dubuque, IL
Frontier
Dekalb, IL
Answer USA
Rockford, IL
MTCO Communications
Marseilles, IL
Verizon Wireless
Dekalb, IL
Frontier
Dekalb, IL
Frontier
Dekalb, IL
Frontier
Dekalb, IL
TELNYX
Dekalb, IL
Frontier
Dekalb, IL
U.S. Cellular
Dekalb, IL
Frontier
Dekalb, IL
AT&T Illinois
McHenry, IL
Verizon Wireless
Hennepin, IL
Verizon Wireless
Dekalb, IL
Verizon Wireless
Dekalb, IL
Answer USA
Rockford, IL
T-Mobile
Dekalb, IL
Frontier
Poplar Grove, IL
U.S. Cellular
Dekalb, IL
American Messaging
La Grange Park, IL
Level 3
Joliet, IL
Level 3
Seneca, IL
Bandwidth.com
Harvard, IL
Unknown
Ashkum, IL
Frontier
Morrison, IL
AT&T Illinois
Joliet, IL
AT&T Illinois
Joliet, IL
USA Mobility
Woodstock, IL
AT&T Illinois
Galena, IL
AT&T Illinois
Galena, IL
Frontier
Lyndon, IL
Level 3
La Salle, IL
Unknown
Chebanse, IL
Comcast
Plainfield, IL
Unknown
Gilman, IL
Frontier
Genoa, IL
Verizon Business
Watseka, IL
Frontier
Sandwich, IL
Frontier
Dekalb, IL
AT&T Illinois
Crystal Lake, IL
Frontier
Orangeville, IL
Sprint
Woodstock, IL
Sprint
Joliet, IL
Neutral Tandem
Earlville, IL
T-Mobile
Dekalb, IL
Illinois Vally Cellular
Marseilles, IL
Marseilles Telephone Company
Marseilles, IL
Frontier
Flanagan, IL
Level 3
Somonauk, IL
Aero Communications
Milledgeville, IL
Unknown
Sterling, IL
Neutral Tandem
Poplar Grove, IL
Aero Communications
Freeport, IL
AT&T Illinois
Kankakee, IL
Aero Communications
Byron, IL
Aero Communications
Pecatonica, IL
Aero Communications
Durand, IL
AT&T Illinois
Frankfort, IL
Aero Communications
German Valley, IL
Aero Communications
Winslow, IL
Aero Communications
Lena, IL
Aero Communications
Pearl City, IL
Unknown
--
Aero Communications
Dakota, IL
Aero Communications
Apple River, IL
T-Mobile
Woodstock, IL
Aero Communications
Dakota, IL
Aero Communications
Hanover, IL
Aero Communications
Warren, IL
Aero Communications
Orangeville, IL
Aero Communications
Elizabeth, IL
U.S. Cellular
Freeport, IL
AT&T Mobility
Streator, IL
Sprint
Joliet, IL
Frontier
Shabbona, IL
Level 3
Malta, IL
Verizon Wireless
Somonauk, IL
Frontier
Maple Park, IL
XO Communications
Minooka, IL
Aero Communications
Chadwick, IL
AT&T Mobility
Oglesby, IL
Aero Communications
Davis, IL
Frontier
Saunemin, IL
Aero Communications
Mc Connell, IL
AT&T Illinois
Lockport, IL
Aero Communications
Dixon, IL
AT&T Illinois
Lockport, IL
Aero Communications
Forreston, IL
AT&T Illinois
Lockport, IL
XO Communications
Kankakee, IL
Aero Communications
Stockton, IL
Aero Communications
Mount Morris, IL
Frontier
Pontiac, IL
Aero Communications
Ashton, IL
Frontier
Pontiac, IL
Frontier
Scales Mound, IL
Level 3
Joliet, IL
TDS Telecom
Rockford, IL
Illinois Vally Cellular
Pontiac, IL
Neutral Tandem
Sublette, IL
Aero Communications
Pecatonica, IL
USA Mobility
Kankakee, IL
Aero Communications
Scales Mound, IL
Neutral Tandem
Wenona, IL
Neutral Tandem
Long Point, IL
Neutral Tandem
Milledgeville, IL
Leonore Mutual Telephone Company
Tonica, IL
Frontier
Amboy, IL
U.S. Cellular
Elizabeth, IL
Neutral Tandem
Rochelle, IL
Neutral Tandem
Elwood, IL
AT&T Mobility
Woodstock, IL
Neutral Tandem
Harvard, IL
Neutral Tandem
Rutland, IL
Frontier
Shannon, IL
Frontier
Davis, IL
Illinois Vally Cellular
Princeton, IL
Sprint
Pontiac, IL
Frontier
Mc Connell, IL
Neutral Tandem
Magnolia, IL
USA Mobility
Rockford, IL
U.S. Cellular
Rockford, IL
Frontier
Princeton, IL
Frontier
Rockford, IL
Frontier
Rockford, IL
Frontier
Princeton, IL
Frontier
Princeton, IL
AT&T Illinois
Loves Park, IL
AT&T Mobility
Princeton, IL
Frontier
Princeton, IL
XO Communications
Woodstock, IL
Neutral Tandem
Oregon, IL
McNabb Telephone Company
Mc Nabb, IL
AT&T Illinois
Oglesby, IL
Bandwidth.com
Harvard, IL
Frontier
Caledonia, IL
AT&T Illinois
Romeoville, IL
Peerless Network
Harvard, IL
AT&T
Rochelle, IL
Frontier
Milford, IL
Aero Communications
Rockford, IL
Aero Communications
Winnebago, IL
TELNYX
--
Neutral Tandem
Crystal Lake, IL
Frontier
Ladd, IL
Frontier
Sycamore, IL
Aero Communications
Durand, IL
Unknown
Lyndon, IL
Aero Communications
Elizabeth, IL
Frontier
Sycamore, IL
AT&T Mobility
Amboy, IL
Verizon Wireless
Dekalb, IL
Unknown
Lyndon, IL
American Messaging
McHenry, IL
Verizon Wireless
Rockford, IL
MetroPCS
Lockport, IL
Unknown
Mount Carroll, IL
Level 3
Manteno, IL
Sprint
Freeport, IL
T-Mobile
Dekalb, IL
Illinois Vally Cellular
Mendota, IL
Unknown
--
Aero Communications
Belvidere, IL
Neutral Tandem
Joliet, IL
Sprint
Rockford, IL
AT&T Mobility
Coal City, IL
Neutral Tandem
Minooka, IL
Aero Communications
Rochelle, IL
Level 3
Clifton, IL
T-Mobile
Joliet, IL
Unknown
Cornell, IL
AT&T Illinois
Rockford, IL
Verizon Wireless
Kankakee, IL
Neutral Tandem
Union, IL
Aero Communications
Prophetstown, IL
Frontier
Hennepin, IL
Level 3
Wilmington, IL
Level 3
Joliet, IL
AT&T Illinois
Kankakee, IL
AT&T Illinois
Kankakee, IL
Unknown
Elizabeth, IL
AT&T Mobility
Joliet, IL
AT&T Illinois
Kankakee, IL
AT&T Illinois
Kankakee, IL
Neutral Tandem
Emington, IL
AT&T Illinois
Kankakee, IL
AT&T Illinois
Kankakee, IL
AT&T Illinois
Kankakee, IL
Frontier
Forreston, IL
AT&T Illinois
Kankakee, IL
Neutral Tandem
Gardner, IL
AT&T Illinois
Morris, IL
AT&T Illinois
Morris, IL
AT&T Illinois
Harvard, IL
Unknown
Saint Anne, IL
Frontier
Chenoa, IL
Frontier
Polo, IL
Frontier
Stockton, IL
Frontier
Prophetstown, IL
Neutral Tandem
Cabery, IL
Unknown
--
Unknown
Amboy, IL
Aero Communications
Lanark, IL
Verizon Wireless
Kankakee, IL
Verizon Wireless
Kankakee, IL
Sprint
Joliet, IL
Frontier
Morrison, IL
Neutral Tandem
Rockton, IL
Unknown
--
Unknown
--
North County Communications
Leaf River, IL
AT&T Illinois
Rockford, IL
AT&T Illinois
Rockford, IL
AT&T Illinois
Rockford, IL
AT&T Illinois
Rockford, IL
AT&T Illinois
Rockford, IL
AT&T Illinois
Rockford, IL
AT&T Illinois
Rockford, IL
AT&T Illinois
Rockford, IL
AT&T Illinois
Rockford, IL
Sprint
Sycamore, IL
AT&T Illinois
Rockford, IL
AT&T Illinois
Rockford, IL
U.S. Cellular
Dixon, IL
Neutral Tandem
Hebron, IL
AT&T Mobility
Belvidere, IL
Unknown
--
Comcast
Rockford, IL
Verizon Wireless
Rockford, IL
Verizon Wireless
Rockford, IL
Verizon Wireless
Rockford, IL
Level 3
Ottawa, IL
Neutral Tandem
Tampico, IL
American Messaging
Rockford, IL
Unknown
Wellington, IL
Verizon Wireless
Rockford, IL
One Communications
Rockford, IL
AT&T Illinois
Rockford, IL
U.S. Cellular
Rockford, IL
Neutral Tandem
Prophetstown, IL
Verizon Wireless
Freeport, IL
YMax Communications
Sycamore, IL
Verizon Wireless
Streator, IL
AT&T Mobility
Oglesby, IL
U.S. Cellular
Dixon, IL
T-Mobile
Dekalb, IL
Unknown
Savanna, IL
Verizon Wireless
Rockford, IL
Neutral Tandem
Odell, IL
Sprint
Joliet, IL