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.
The code 001 is used to call the U.S. from Mexico. You may need to change the area code of the U.S. number so that it won't be blocked. Use the following formula: Change an 800 number to 001-880; an 866 number to 001-883; an 877 number to 001-882; and an 888 number to 001-881. direct call from a Mexican line to the U.S. is extremely expensive and a toll-free call to the U.S. may be blocked by the local telephone company, regardless of the change in area code. Hotels in Mexico regularly offer some type of phone service for calling the U.S. for an additional charge.