Area code 877 is toll-free. It could be anywhere in North America (USA, Canada, etc.), or it could even be an overseas call center taking calls from North America.
Area code 941 is in Florida. The 941-359 prefix is in Sarasota.
Area code 613 (and overlay area code 343) is Ottawa, Ontario, Canada, and nearby areas. The 613-909 prefix is in Ottawa.
The 949 area code serves southern Orange County, California. The 949-556 prefix is in Irvine.
Area code 949 serves southern Orange County, California. The 949-430 prefix is in Irvine.
Area code 949 is southern Orange County, California. The 949-355 prefix is in Newport Beach.
There are many different area codes with a 223 prefix.
Area code 973 is in northern New Jersey. The 973-627 prefix is in Rockaway.
The 541-779 prefix is in Medford, Oregon.
The 617-573 prefix is in Boston, MA.
The 973-947 prefix is in Whippany, NJ.
The 909-225 prefix is in Ontario, California.
The 928-657 prefix is for Dilcon, Arizona.