Zadarma blog

The 312 area code is one of the most recognisable telephone codes in the United States, closely associated with downtown Chicago and its powerful business environment. For companies looking to build trust with customers in the Midwest, a Chicago phone number can instantly create a strong local presence. In this article, we explore the history of the 312 area code, why it remains highly valued by businesses, how to dial it from anywhere in the world, and how you can easily set up your own Chicago number.

Phone calls remain one of the most valuable — and hardest to measure — customer touchpoints. While digital marketing tools clearly show where clicks and form submissions come from, phone call leads often stay in the dark. Call tracking solves this gap by connecting inbound calls to specific marketing channels, campaigns, and customer actions.

In this guide, we’ll break down what call tracking is, how it works in practice, the different types available, and why so many businesses rely on it to improve marketing ROI and sales performance. You’ll also learn how to set up call tracking effectively and turn call data into actionable insights.

If you’re living, traveling, or running a business outside the United States but still need a reliable way to stay connected with American clients, partners, or friends, the easiest solution is to get a U.S. phone number.

With Zadarma, you can choose from virtual local numbers in major U.S. cities, mobile numbers, or even toll-free lines, making it simple and affordable to stay accessible no matter where you are in the world.