COMMON LANGUAGE® Location Codes
(CLLI™ Codes):

Technical Description

How Are CLLI Codes Used?
How Are CLLI Codes Developed?
Would a Picture Help?
Learning to Count in the Millions
How Are CLLI Codes Used?
COMMON LANGUAGE Location Codes (CLLI Codes) are used worldwide to identify and describe three types of locations:


Network application sites: These include buildings and certain equipment and job functions associated with those structures. You may find a picture helpful in visualizing the network elements identified by CLLI codes.


Functional-application sites: These include such network support sites as international boundaries or crossing points, end points, fiber nodes, cable and facility junctions, manholes, poles and repeaters.


Customers-application sites: These include structures, equipment and job functions located outside of customers' central offices.