From 1947, when the original area codes were introduced, until 1984, area code 212 was the only area code for all of New York City.
In 1984, area code 718 was created for Brooklyn, Queens, and Staten Island, but the Bronx stayed in 212 with Manhattan.
In 1992, the Bronx was moved into 718. The end of permissive dialing was May 16, 1993, so that was the last date that 212 was used for the Bronx.
The last tornado to hit the Bronx was on July 25, 2010.
The last area code change in Indiana was in 2002, when area code 219 in northern Indiana underwent a three-way split, creating new area codes 260 and 574.
It depends greatly on where in area code 740 (southeast Ohio) and somewhat on where in area code 513 (Cincinnati area).
Area code 206 serves Seattle, Washington, which is in the Pacific Time Zone.
Area code 310 is in the Los Angeles area, so it is in the Pacific Time Zone (PST in winter, PDT in summer).
Area code 910 is in North Carolina, which is in the Eastern Time Zone (EST in winter, EDT in summer).
Area code 715 is in Wisconsin, in the Central Time Zone (CST in winter, CDT in summer).
Area code 706, including Augusta, Georgia, was created in a split from area code 404 (at the time, the only area code for all of northern Georgia) in 1992.
North American area code 641 is in Iowa, USA, which is in the Central Time Zone (CST in winter, CDT in summer).
No, area code 513 is in Ohio, which is entirely in the Eastern Time Zone (EST in winter, EDT in summer).
Yes, there are several area codes that have more than one time zone. In fact, area code 867 in northern Canada has four time zones!
Telephone area code 812 serves southern Indiana. It is divided between the Eastern and Central Time Zones.