Toll-free numbers differ from A2P 10DLC numbers in a few ways:
Twilio can verify toll-free numbers in house. 10DLC numbers require secondary vetting from an external registration group, which can increase time-to-market
10DLC numbers have a local prefix for the area code, while toll-free numbers have a preassigned prefix like 833,888,855, etc.
Toll-free messaging shows delivery receipts at the customer handset level, while 10DLC shows delivery receipts at the carrier level, giving businesses more transparency into their messaging performance and optimization.