Pairing of a radio access network (RAN) slice to a core network (CN) slice is disclosed. The pairing can be based on RAN slice information, CN slice information, and device information. The device information can enable access to corresponding information from a data store, such as historical pairing correlated to a device, device type, etc. Moreover, other supplemental information, such as service information, can also be employed in determining the pairing. In an aspect, the other supplemental information can enable access to corresponding information form a data store, such as other CN slices comprising an identified virtual network function, historical performance of previously determined pairing(s), etc. A determined pairing can be modified before provisioning or after provisioning based on the RAN slice information, CN slice information, supplemental information, or corresponding information. Further, pairing information can be employed to directly initiate pairing or to cause another device to initiate pairing.