The Company’s revenue for the three and nine months ended October 31, 2019 and 2018 are presented in accordance with the provisions under Topic 606. The Company derives its revenue from two sources:

Subscription and Services Revenue is derived primarily from recurring subscription fees related to service plans such as Ooma Business, Ooma Residential and other communications services. Subscription revenue is generally recognized ratably over the contractual service term.

Product and Other Revenue is generated from the sale of on-premise appliances and end-point devices, including shipping and handling fees for customers, and to a lesser extent from porting fees that enable customers to transfer their existing phone numbers. Revenue is recognized at the point in time that control transfers which is typically when the product is delivered or when all customer contractual provisions have been met, if any.

Refer to the Company’s Annual Report for additional information regarding its revenue recognition policy.

Revenue disaggregated by revenue source consisted of the following (in thousands):

	Three Months Ended				Nine Months Ended
	October 31, 2019		October 31, 2018		October 31, 2019		October 31, 2018
Subscription and services revenue	$	36,489	$	29,794	$	102,070	$	85,532
Product and other revenue		3,106		2,814		8,875		8,979
Total revenue	$	39,595	$	32,608	$	110,945	$	94,511

The Company derived approximately 55% and 67% of its total revenue from Ooma Residential and approximately 42% and 30% from Ooma Business for the three months ended October 31, 2019 and 2018, respectively. The Company derived approximately 59% and 69% of its total revenue from Ooma Residential and approximately 38% and 27% from Ooma Business for the nine months ended October 31, 2019 and 2018, respectively.

No individual country outside of the United States represented 10% or more of total revenue for the periods presented. No single customer accounted for 10% or more of total revenue for the periods presented.

Customers who represented 10% or more of the Company's net accounts receivable balance were as follows:

	As of
	October 31, 2019			January 31, 2019
Customer A		16	%		—
Customer B		—			15	%

Deferred Revenue. Deferred revenue primarily consists of billings or payments received in advance of meeting revenue recognition criteria. Deferred services revenue is recognized on a ratable basis over the term of the contract as the services are provided. For all arrangements, any revenue that has been deferred and is expected to be recognized beyond one year is classified in long term liabilities on the condensed consolidated balance sheets.

	As of
	October 31, 2019		January 31, 2019
Subscription and services	$	16,112	$	15,682
Product and other		83		68
Total deferred revenue		16,195		15,750
Less: current deferred revenue		16,005		15,443
Non-current deferred revenue included in other long-term liabilities	$	190	$	307

During the three and nine months ended October 31, 2019, the Company recognized revenue of approximately $2.3 million and $14.1 million, respectively, that was included in the corresponding deferred revenue balance as of January 31, 2019.

Remaining Performance Obligations. As of October 31, 2019, contract revenue that has not yet been recognized for open contracts with an original expected length of greater than one year was $0.2 million. This amount includes both long-term deferred revenue and any non-cancelable contract amounts that will be invoiced and recognized as revenue in future periods.