Detroit

Detroit Embraces 10-Digit Dialing as 313 Area Code Reaches Capacity, Welcomes New 679 Area Code

AI Assisted Icon
Published on October 07, 2025
Detroit Embraces 10-Digit Dialing as 313 Area Code Reaches Capacity, Welcomes New 679 Area CodeSource: Unsplash/ Hassan OUAJBIR

As of today, Detroit residents have entered a new era of 10-digit dialing, a change ushered in by the need to accommodate an ever-growing number of phone lines within the area. According to CBS News Detroit, the shift is due to the 313 area code reaching its capacity, resulting in the introduction of the new 679 area code.

Starting today, even if calling your next-door neighbor, Detroiters must begin their local calls with the full 10-digit number. This change, as stated by ClickOnDetroit, means dialing the area code followed by the seven-digit number, with no calls being connected without the area code. Prepared for the new 679 area code, the Michigan Public Service Commission had launched a permissive dialing phase since March to help ease the transition.

New phone numbers that exhaust the 313 supply will adopt the 679 area code, with this new area code expected to last for about 46 years, according to projections by the North American Numbering Plan Administrator. However, residents currently owning a 313 number will not face the necessity to change. The Bridge Michigan article also highlights how rates will not be affected by this introduction.

In light of these adjustments, the Michigan Public Service Commission is urging citizens and businesses to ensure that all phone numbers on promotional materials, personal items, and electronic systems are updated to include the area code. "You know we'll always be Motor City, we'll always be Motown, and we'll always be the 313. Even with the new things that are happening with the new area code coming around, we'll still always be the 313 that's like a legacy for us," Clement Brown, owner of Three Thirteen, told CBS News Detroit, emphasizing the cultural significance of the 313 area code despite these changes. Emergency services like 911 will still be reachable with just the three digits, ensuring crucial access to these services remains uninterrupted.