Its overlay area code is the 289 area code. It was introduced to the public in the middle of 2001. The first Mississauga (Malton) area code was all used up in the later months of 2005, thus the 289 area code will become the area code of phone numbers that will be given starting from that time onwards.
Direct inward dialing (DID), also called direct dial-in (DDI) in Europe and Oceania, is a telecommunication service offered by telephone companies to subscribers who operate a private branch exchange (PBX) system.
Dial 00 + 1 + 880 + phone number. - To a US cell phone while is in Mexico (some companies have that as default): Dial 00 + 1 + area code (3 digits) + phone number (7 digits). Last, we tried to find out from the Baja California phone company (TELNOR) how to dial from the U.S. into a Mexican 800 number.They donât know.rom your US cell phone: You can make calls from your U.S. cell phone to Mexican numbers while you are in Mexico. The most confusing thing about this is that some US companies have arrangements with local Mexican carriers (TELCEL or MOVISTAR for example).