On Mon, 21 Aug 2017 11:08:26 -0500, Mark Lloyd
wrote:

On 08/20/2017 09:25 PM, wrote:

[snip]

In the US area codes used to be informative but as the phone companies
started running out of numbers, the "area" in area code became less
specific. Some states get by with one area code and there are cities
with 3 or 4. Depending on how they implemented the extra area codes,
some local calls can be dialed with 7 digits, some require 10 (plus
1). I am lucky to be in an area without an "overlay" so I only need 7
digits to call my neighbor.

Where I am, we have had an overlay area code for about 10 years. I still
don't know anyone who uses the new code.

Depending on how the overlay is implemented, you may be able to keep
dialing 7 digits or you may need 10.