A system comprising: one or more user interfaces configured to accept service administrator inputs defining a bill-by-account service policy applicable to a particular device group, the device group including one or more end-user devices communicatively coupled or coupleable to the system over a wireless access network, each enduser device in the device group identified by a unique credential differentiating that end-user device from all other end-user devices in the device group, the bill-by-account service policy to be applied when any end-user device in the device group communicates or attempts to communicate over the wireless access network, the bill-by-account service policy comprising: a classification policy to assist in identifying one or more bill-by-account service activities, the one or more bill-by-account service activities being a subset of all service activities available over the wireless access network, and a charging policy to assist in accounting for usage of the wireless access network associated with the one or more bill-by-account service activities; and one or more networks elements configured to: identify attempted or successful wireless access network traffic associated with a particular end-user device in the device group, the particular end-user device Identified by a particular credential, using at least a portion of the classification policy, identify a particular service activity within the attempted or successful wireless access network traffic associated with the particular end-user device, the particular service activity being one of the one or more bill-by-account service activities, obtain a charging record comprising the particular credential and a usage measure providing an indication of a wireless access network usage associated with the particular service activity by the particular end-user device, and based on the charging policy, allocate at least a portion of the usage measure to an account associated with an entity responsible for at least a portion of the wireless access network usage associated with the particular service activity by the particular end-user device. one or more user interfaces configured to accept service administrator inputs defining a bill-by-account service policy applicable to a particular device group, the device group including one or more end-user devices communicatively coupled or coupleable to the system over a wireless access network, each enduser device in the device group identified by a unique credential differentiating that end-user device from all other end-user devices in the device group, the bill-by-account service policy to be applied when any end-user device in the device group communicates or attempts to communicate over the wireless access network, the bill-by-account service policy comprising: a classification policy to assist in identifying one or more bill-by-account service activities, the one or more bill-by-account service activities being a subset of all service activities available over the wireless access network, and a charging policy to assist in accounting for usage of the wireless access network associated with the one or more bill-by-account service activities; and a classification policy to assist in identifying one or more bill-by-account service activities, the one or more bill-by-account service activities being a subset of all service activities available over the wireless access network, and a charging policy to assist in accounting for usage of the wireless access network associated with the one or more bill-by-account service activities; and one or more networks elements configured to: identify attempted or successful wireless access network traffic associated with a particular end-user device in the device group, the particular end-user device Identified by a particular credential, using at least a portion of the classification policy, identify a particular service activity within the attempted or successful wireless access network traffic associated with the particular end-user device, the particular service activity being one of the one or more bill-by-account service activities, obtain a charging record comprising the particular credential and a usage measure providing an indication of a wireless access network usage associated with the particular service activity by the particular end-user device, and based on the charging policy, allocate at least a portion of the usage measure to an account associated with an entity responsible for at least a portion of the wireless access network usage associated with the particular service activity by the particular end-user device. identify attempted or successful wireless access network traffic associated with a particular end-user device in the device group, the particular end-user device Identified by a particular credential, using at least a portion of the classification policy, identify a particular service activity within the attempted or successful wireless access network traffic associated with the particular end-user device, the particular service activity being one of the one or more bill-by-account service activities, obtain a charging record comprising the particular credential and a usage measure providing an indication of a wireless access network usage associated with the particular service activity by the particular end-user device, and based on the charging policy, allocate at least a portion of the usage measure to an account associated with an entity responsible for at least a portion of the wireless access network usage associated with the particular service activity by the particular end-user device.