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Wikipedia has good info on how RespOrgs handle this: https://en.wikipedia.org/wiki/Toll-free_telephone_numbers_in_the_North_American_Numbering_Plan#Routing_in_
by function_seven 2y ago
Wikipedia has good info on how RespOrgs handle this:
https://en.wikipedia.org/wiki/Toll-free_telephone_numbers_in_the_North_American_Numbering_Plan#Routing_in_the_U.S https://en.wikipedia.org/wiki/Toll-free_telephone_numbers_in....