If you’re a proud holder of a 215 or 267 area code, hold on to your phone number with care. The new 445 area code is being rolled out in March.

And this year, here in the Philadelphia region, there's a whole new meaning behind today's date. 215 Day is Philly's newest homegrown holiday, celebrating our oldest and first area code 2-1-5.

But then the 215 area code was split even more: In 1997, the 267 area code was added as an overlay to 215. Ten-digit dialing was introduced. That was a hassle to learn back in the late 1990s ...

The 215 area code has served the region since 1947. The 215 and 267 area codes currently serve Philly and parts of Berks, Bucks, Lehigh and Montgomery Counties.

Residents in the Philadelphia area, which used to be served only by the 215 area code, have been dialing 10 digits since the 610 area code was added in that area 18 years ago.

The 445 area code will become part of the region served by the 215 and 267 area codes, which includes Philadelphia and sections of Berks, Lehigh, Montgomery and Bucks counties, said Nils Hagen ...

Customers with existing 215 or 267 area codes, which were put into service in 1947 and 1999 respectively, won't be impacted by the addition which was initally announced in 2016.

The 215/267 pool is set to run out of available number combinations by the spring of 2019, officials said. The 215 area code was first put into service in 1947 and was one of four original state ...