All customer statistics include the operations of Legacy TWC, Legacy Bright House and Legacy Charter each of which is based on the legacy company's reporting methodology. Such methodologies differ and these differences may be material. Once statistical reporting is fully integrated, all prior periods will be recast to reflect a consistent methodology.
At December 31, 2015, actual residential video, Internet and voice PSUs were 4,322,000, 5,227,000 and 2,598,000, respectively; actual commercial video, Internet and voice PSUs were 108,000, 345,000 and 218,000, respectively; Enterprise PSUs were 30,000.
At September 30, 2015, actual residential video, Internet and voice PSUs were 4,293,000, 5,112,000 and 2,551,000, respectively; actual commercial video, Internet and voice PSUs were 104,000, 331,000 and 208,000, respectively; Enterprise PSUs were 28,000.
We calculate the aging of customer accounts based on the monthly billing cycle for each account. On that basis, at September 30, 2016, June 30, 2016, December 31, 2015 and September 30, 2015, actual customers include approximately 200,900, 208,600, 38,100 and 36,800 customers, respectively, whose accounts were over 60 days past due, approximately 15,200, 14,000, 1,700 and 1,200 customers, respectively, whose accounts were over 90 days past due and approximately 8,900, 8,000, 900 and 800 customers, respectively, whose accounts were over 120 days past due.
Passings represent our estimate of the number of units, such as single family homes, apartment and condominium units and small and medium business and enterprise sites passed by our cable distribution network in the areas where we offer the service indicated. These estimates are based upon the information available at this time and are updated for all periods presented when new information becomes available.
Penetration represents residential and small and medium business customers as a percentage of estimated passings for the service indicated.
Customer relationships include the number of customers that receive one or more levels of service, encompassing video, Internet and voice services, without regard to which service(s) such customers receive. Customers who reside in residential multiple dwelling units ("MDUs") and that are billed under bulk contracts are counted based on the number of billed units within each bulk MDU. Total customer relationships excludes enterprise customer relationships.
Single play, double play and triple play customers represent customers that subscribe to one, two or three of Charter service offerings, respectively.
Single play, double play and triple play penetration represents the number of residential single play, double play and triple play customers, respectively, as a percentage of residential customer relationships.
Pro forma monthly residential revenue per residential customer is calculated as total pro forma residential video, Internet and voice quarterly revenue divided by three divided by average pro forma residential customer relationships during the respective quarter.
Pro forma monthly small and medium business revenue per customer is calculated as total pro forma small and medium business quarterly revenue divided by three divided by average pro forma small and medium business customer relationships during the respective quarter.
Enterprise PSUs represents the aggregate number of fiber service offerings counting each separate service offering at each customer location as an individual PSU.
Addendum to Charter Communications, Inc. Third Quarter 2016 Earnings Release
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