A device may receive hash values generated based on resource identifiers. The resource identifiers may be associated with a toll free data service and may be associated with a file size threshold for accessing the toll-free data service. The device may identify a request to access content using a resource identifier and may generate a hash value based on the resource identifier. The device may compare the generated hash value and the received hash values. The device may request the content selectively using a toll-free resource identifier or a non-toll-free resource identifier based on comparing the generated hash value and the received hash values.