Long Island Suffolk Area Code

About the Long Island Suffolk Area Code

Area code 631 serves Long Island Suffolk, New York and surrounding areas.

Key Information

• Region: Long Island Suffolk
• State: New York
• Timezone: Eastern
• Major Cities: Islip, Babylon, Smithtown

Look Up Numbers from Long Island Suffolk

Use our reverse phone lookup service to identify callers from the Long Island Suffolk area code. Find out who's calling you from Long Island Suffolk.