applications that became part of the remote work environment, which benefits our corporate business as these customers upgrade their Internet access infrastructure to higher capacity connections. Further, if and when companies eventually return to the buildings in which we operate, we believe it will present an opportunity for increased sales. However, the exact timing and path of these positive trends remains uncertain, and as the after effects of the COVID-19 pandemic linger, we may continue to see increased corporate customer turnover, fewer upgrades of existing corporate customer configurations and fewer new tenant opportunities, which would negatively affect our corporate revenue growth.
Our revenue from our net-centric customers increased primarily due to an increase in our number of net-centric customers and growth in network traffic from these customers and from 5,711 net-centric customers acquired with the Wireline Business. Our net-centric customers purchase our services on a price per megabit basis. The net-centric market exhibits significant pricing pressure due to the continued introduction of new technology, which lowers the marginal cost of transmission and routing, and the commodity nature of the service where price is typically the only differentiating factor for these customers. Our average price per megabit of our installed base of customers decreased by 12.7% from the six months ended June 30, 2022 to the six months ended June 30, 2023. The impact of foreign exchange rates has a more significant impact on our net-centric revenues.
Revenue and customer connections by network connection type
Our on-net revenues increased by 8.5% from the six months ended June 30, 2022 to the six months ended June 30, 2023. Our on-net revenues increased as we increased the number of our on-net customer connections by 12.8% at June 30, 2023 from June 30, 2022. On-net customer connections increased at a greater rate than on-net customer revenue primarily due to on-net customers acquired in our acquisition of the Wireline Business and partly offset by an increase in our on-net ARPU from the six months ended June 30, 2022 to the six months ended June 30, 2023. ARPU is determined by dividing revenue for the period by the average customer connections for that period. On-net revenues from customers acquired in the Wireline Business was $4.1 million from May 1, 2023 (the closing date) to June 30, 2023. On-net customer connections from the Wireline Business were 2,546 as of June 30, 2023.
Our off-net revenues increased by 91.6% from the six months ended June 30, 2022 to the six months ended June 30, 2023. Our off-net revenues increased primarily from the 194.5% increase in the number of our off-net customer connections from June 30, 2022 to June 30, 2023. Off-net revenues from customers acquired in the Wireline Business was $63.9 million from May 1, 2023 (the closing date) to June 30, 2023. Off-net customer connections from the Wireline Business were 24,243 as of June 30, 2023.
In connection with our acquisition of the Wireline Business, we expanded our offering of optical wavelength and optical transport services over our fiber network. Wavelength customer connections from the Wireline Business were 402 as of June 30, 2023. Wavelength revenues from customers acquired in the Wireline Business was $1.6 million from May 1, 2023 (the closing date) to June 30, 2023.
Our non-core revenues increased from the six months ended June 30, 2022 to the six months ended June 30, 2023 primarily from the acquisition of non-core revenues from customers acquired in the Wireline Business. Non-core revenues from customers acquired in the Wireline Business were $8.4 million from May 1, 2023 (the closing date) to June 30, 2023. Non-core customer connections from the Wireline Business were 19,021 as of June 30, 2023.
Network Operations Expenses. Network operations expenses include the costs of personnel associated with service delivery, network management and customer support, network facilities costs, fiber and equipment maintenance fees, leased circuit costs, access and facilities fees paid to building owners and excise taxes billed to our customers and recorded on a gross basis. Our network operations expenses, including non-cash equity-based compensation expense, increased by 72.1% from the six months ended June 30, 2022 to the six months ended June 30, 2023. Non-cash equity-based compensation expense is included in network operations expenses consistent with the classification of the employee’s salary and other compensation. The increase in network operations expense is primarily attributable to an increase in costs related to our network and facilities expansion activities, an increase in power costs and $72.4 million of network operations expense from our acquisition of the Wireline Business from May 1, 2023 (the closing date) to June 30, 2023.
Selling, General, and Administrative (“SG&A”) Expenses. Our SG&A expenses, including non-cash equity-based compensation expense, increased by 60.9% from the six months ended June 30, 2022 to the six months ended June 30, 2023. Non-cash equity-based compensation expense is included in SG&A expenses consistent with the classification of the employee’s salary and other compensation. SG&A expenses increased primarily from an increase in salaries and benefits from a 104.5% increase in our total headcount, including 942 employees added to our headcount from our acquisition of the Wireline Business. Our sales force headcount