- This area code is shared by 12 main cities
Belvidere (IL)
Crystal Lake (IL)
DeKalb (IL)
Freeport (IL)
Joliet (IL)
Kankakee (IL)
Loves Park (IL)
Machesney Park (IL)
McHenry (IL)
Rockford (IL)
Romeoville (IL)
Woodstock (IL)
DeKalb, located in northern Illinois, serves as the county seat of DeKalb County and is renowned for its rich history and significant contributions to agriculture and education. Founded in 1837, the city initially grew as a center for grain production and attracted settlers due to its fertile land. Notably, DeKalb became a focal point for the development of hybrid seed corn, driven by the efforts of Joseph F. Glidden and the invention of barbed wire, which transformed agricultural practices across the United States.
Today, DeKalb is home to Northern Illinois University, established in 1895, which adds a vibrant academic atmosphere and impacts the local economy. The university conducts extensive research and offers various programs that foster innovation, particularly in technology and telecommunications.
Regarding telecommunications, DeKalb has attracted investment in its infrastructure, providing residents and businesses access to modern communication services. The city's commitment to enhancing broadband connectivity reflects a strategic approach to support its growing population and educational institutions. Additionally, the presence of regional telecommunications companies fosters competition and investment in advanced services, contributing to DeKalb's reputation as a technologically progressive community.
The city, with a population of over 40,000, blends historical significance with ongoing development, making it a notable area for both education and telecommunications in the Midwest. With its historical roots and modern advancements, DeKalb continues to attract attention in discussions about technological growth and community development.
Belvidere (IL)
Crystal Lake (IL)
DeKalb (IL)
Freeport (IL)
Joliet (IL)
Kankakee (IL)
Loves Park (IL)
Machesney Park (IL)
McHenry (IL)
Rockford (IL)
Romeoville (IL)
Woodstock (IL)
Belvidere (IL)
Crystal Lake (IL)
DeKalb (IL)
Freeport (IL)
Joliet (IL)
Kankakee (IL)
Loves Park (IL)
Machesney Park (IL)
McHenry (IL)
Rockford (IL)
Romeoville (IL)
Woodstock (IL)
DeKalb (IL) has 2 area codes (779, 815). These area codes are split between cities or states, so if you want to call to DeKalb (IL), you need to know exactly where you would like to call.
Calling DeKalb (IL) from another state in the United States is considered a long-distance call. Here’s how to make the call: First, dial the area code for DeKalb (IL). Each state, and sometimes specific cities within a state, has unique area codes. Then, enter the 7-digit phone number of the person or business you’re trying to reach. If you’re calling from a landline, check with your provider, as long-distance charges may apply. However, most mobile carriers in the U.S. offer nationwide calling without additional fees. Alternatively, you can use VoIP or internet-based calling apps, like Skype, Zoom, or WhatsApp, to bypass traditional long-distance charges. The number you want to reach should look like this: 1-(AreaCode)-111-2222.
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