Data Network Identification Code (DNIC)

A Data Network Identification Code (DNIC) is a unique, four-digit number designed to provide discrete identification of individual public data networks. The DNIC is intended to identify and permit automated switching of data traffic to particular networks. The Federal Communications Commission (¿Commission¿) grants the DNICs to operators of public data networks on an international protocol. The operators of public data networks file an application for a DNIC on the Internet-based, International Bureau Filing System (IBFS). The DNIC is obtained free of charge on a one-time only basis unless there is a change in ownership or the owner chooses to relinquish the code to the FCC.

The latest form for Data Network Identification Code (DNIC) expires 2023-01-31 and can be found here.