Category: Area Code Profiles

Area code 214 is a classic Dallas number dating to 1947; learn about its overlay codes, ten-digit dialing and how to treat calls from…

Area code 303 has served Denver since 1947 and now shares its territory with the 720 overlay; here is where it is used and…

Area code 480 serves Scottsdale, Tempe, Mesa and nearby East Valley cities in Arizona; here is its history, dialing advice and tips for calls.

Area code 503 covers Portland, Salem and much of northwest Oregon, and shares space with the 971 overlay; this guide explains its history and…

Area code 512 is the long-standing code of Austin, Texas, now shared with the 737 overlay; this guide covers its history, dialing and call…

Area code 602 was Arizona's original statewide code and now mainly identifies Phoenix; this guide covers its history, dialing and tips for calls.

Area code 619 is closely linked to San Diego, California; this guide explains where it is used, how it was created and how to…

Area code 646 is an overlay code serving Manhattan alongside 212 and other codes; this guide explains how overlays work, dialing rules and call…

Area code 718 serves four of New York City's five boroughs, and this guide explains its history, its overlay codes and how to dial…

Area code 770 covers much of metro Atlanta outside the city core, and this guide explains how it began, which codes overlap it and…

Area code 786 was added as an overlay to Miami's 305 and serves the same region, so this guide covers its purpose, dialing rules…

Area code 818 is the San Fernando Valley's calling code, and this guide explains where it is used, how it began, its 747 overlay…