Area codes 314 and 636 are adjacent, so it is likely that many calls between them are local, but there may also be some toll calls.
The easiest way to find out is to dial the number with just the area code and number (without the "one plus" at the start). For example, dial just 314-555-0123. If the call goes through, it's local. If you get a recording telling you to hang up and dial 1+, then you know it's toll. (This works in Missouri and many other states, but not in some other states like CA, NY, IL, etc.)
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Area code 808 is Hawaii. Area code 301 is in Maryland. Unless you have nationwide long distance included in your calling plan, there will be a charge for that call.
It depends on your long-distance company and calling plan. Area code 203 is in Connecticut, and area code 507 is in Minnesota.
If you are calling a different area code, yes, of course - otherwise how will the system know you are trying to call a number in that area rather than your own?
Area code 647 is one of the area codes for the city of Toronto. On most calling plans, that is long distance from Longueuil, Québec.
It depends whether the call is local or long distance, which is a different question from whether it is in the same area code or a different area code, unless you're in Mexico. (In Mexico, your area code is exactly the same as your local calling area.) For example, from San Francisco, California, in area code 415, there are local numbers in area codes 415, 650, and 510, but there are also long-distance numbers in area code 415.To make it even more complicated, a "short-distance" call (long distance, but carried by your local phone company) may cost more than a coast-to-coast long-distance call. A call from San Francisco to Eureka, CA, on Pacific Bell will cost more than a call from SF to New York.Bottom line: it depends.
It depends on your long-distance company and the specific calling plan you signed up for.
Anything outside your area code is usually long distance.
Area code 910 serves Wilmington and Fayetteville, North Carolina; area code 828 serves Asheville, N.C. To call from area code 828 to area code 910, just dial 1-910 and the 7-digit local number. To choose a long distance company other than your default for this call only, dial 101xxxx-1-910-xxx-xxxx, where 101xxxx is the access code for the long distance company you want to use. However, be careful, as you may be charged much higher "casual caller" rates if you do not have an account with the long distance company you choose.
Area codes 310 and 424 cover the exact same geographic area. There are some calls that are local and others that are toll, depending on the distance between the two places in the 310/424 area code.
If you are placing a local call to a number in area code 905, you do not need to dial '1'. If you are placing a toll (long distance) call, you do need to dial '1'.
Since area code 512 is in Texas and area code 808 is in Hawaii, any call from one to the other will be toll unless you have nationwide long distance included in your calling plan, or unless it's something like a free "mobile-to-mobile" or similar call.