Area codes were initially conceived as two-digit codes in c. 1945, and the middle digit (0 or 1) of the three-digits codes was added later for automatic distinction of area codes from central …

The area code system was developed by AT&T and Bell Laboratories in the 1940's, and went into effect in 1947. It was called the North American Numbering Plan (NANP) and included the …

Dec 5, 2017 · To understand the reasoning for the current telephone area codes, it’s worth keeping in mind two things: the way that population levels differ from state to state, and the …

Jun 6, 2025 · When did area codes start, and why? The Bell System, formerly a system of companies led by the Bell Telephone Company, created the first area codes back in the …

Aug 29, 2023 · Today, an area code can be any three digit number. Originally, using the systems of the day, the rules were a little tighter.

Mar 24, 2025 · Area codes have become an integral part of how we communicate, especially in a world where phone calls are still a major form of connection. But have you ever wondered …

Area codes are also known as NPAs, or Numbering Plan Areas. They came into play in the late 40’s in larger cities and were fully implemented everywhere by the mid 60’s.

May 24, 2025 · In the era of smartphones, internet calling, and global connectivity, the concept of an area code might seem like a relic of the past. But these three-digit numbers continue to …

Jul 7, 2025 · Table showing the evolution from the original 86 telephone area codes to the present. LincMad’s Telephone Area Code Pages, by Linc Madison.

Area Code History Significant events for area codes (by area code) United States (states) Alabama 205 251 256 334 659 938 Alaska 907 Arizona 480 520 602 623 928 Arkansas 327 …