ILEC (incumbent local exchange carrier) An ILEC (incumbent local exchange carrier) is a telephone company in the U.S. that was providing local service when the Telecommunications Act of 1996 was enacted.
To call a US toll free number from Mexico, dial as follows: 800 numbers Dial 001-880-then the number 866 numbers Dial 001-883-then the number 877 numbers Dial 001-882-then the number 888 numbers Dial 001-881-then the number.o call a US toll free number from Mexico, dial as follows: 800 numbers Dial 001-880-then the number 866 numbers Dial 001-883-then the number 877 numbers Dial 001-882-then the number 888 numbers Dial 001-881-then the number.
To successfully dial this number, you need to change the 800 prefix of the number. Instead, dial 001 then 880 and then the rest of the phone number. For example: if the US toll free number is 800-555-5555, a caller in Mexico would dial: 001-880-555-555. As a business listing this phone number, make sure these directions are clearly spelled out so your customers know exactly how to reach you.