The last mile or last kilometer is a widely accepted phrase used in the telecommunications, cable television and internet industries to refer to the final leg of the telecommunications networks delivery components and mechanisms to retail end-users (customers). The last mile is typically the speed bottleneck in communication networks; its bandwidth effectively limits the bandwidth of data that can be delivered to the customer. This is because retail telecommunication networks have the topology of “trees”, with relatively few high capacity “trunk” communication channels branching out to feed many final mile “leaves”.

Mobile CDN coined the term the ‘mobile mile’ to categorize the last mile connection when a wireless systems is used to reach the customer. In contrast to wired delivery systems, wireless systems use unguided waves to transmit ICE. They all tend to be unshielded and have a greater degree of susceptibility to unwanted signal and noise sources. Wireless systems have an advantage over wired systems in last mile applications in not requiring lines to be installed. However, they also have a disadvantage in that their unguided nature makes them more susceptible to unwanted noise and signals.

Aggregation is a method of bonding multiple lines to achieve a faster, more reliable connection. Some companies believe that ADSL aggregation (or “bonding”) is the solution to the UK’s last mile problem.