Methods, systems, and computer readable media for SMS forwarding are disclosed. A message service message routing information response message containing message service message routing information for a first destination may be received. The response message is modified to direct a mobile terminated message service message intended for the first destination to the message service message proxy. The mobile terminated message service message is received at the message service message proxy, which determines whether a message service message forwarding feature is enabled for the first destination. If a message service message forwarding feature is enabled for the first destination, it is determined whether the mobile terminated message service message is eligible for forwarding to a second destination. If the mobile terminated message service message is eligible for forwarding, signaling is initiated to forward the mobile terminated message service message to the second destination.