our initial cost less any impairment because fair value is not readily available for this investment. Income is recognized only upon cash distributions of our proportionate earnings in the partnership.
We own 20.51% of RSA #17, which serves areas in and around Conroe, Texas. This investment is accounted for under the equity method. Income is recognized on our proportionate share of earnings and cash distributions are recorded as a reduction in our investment.
We own 3.60% of Pittsburgh SMSA, 16.67% of RSA 6(I) and 23.67% of RSA 6(II). These partnerships cover territories that almost entirely overlap the markets served by our Pennsylvania Incumbent Local Exchange Carrier (“ILEC”) and Competitive Local Exchange Carrier operations. Because of our limited influence over Pittsburgh SMSA, we account for this investment at our initial cost less any impairment because fair value is not readily available for this investment. RSA 6(I) and RSA 6(II) are accounted for under the equity method.
For the years ended December 31, 2020, 2019 and 2018, we recognized income of $40.7 million, $37.7 million and $39.3 million, respectively, and received cash distributions of $41.5 million, $35.8 million and $39.1 million, respectively, from these wireless partnerships.
Network Architecture and Technology
We have made significant investments in our technologically advanced telecommunications networks and continue to enhance and expand our network by deploying technologies to provide additional capacity to our customers. As a result, we are able to deliver high-quality, reliable data, video and voice services in the markets we serve. Our wide-ranging network and extensive use of fiber provide an easy reach into existing and new areas. By bringing the fiber network closer to the customer premise, we can increase our service offerings, quality and bandwidth services. Our existing network enables us to efficiently respond and adapt to changes in technology and is capable of supporting the rising customer demand for bandwidth in order to support the growing amount of wireless data devices in our customers’ homes and businesses.
Our networks are supported by advanced 100% digital switches, with a core fiber network connecting all remote exchanges. We continue to enhance our copper network to increase bandwidth in order to provide additional products and services to our marketable homes. In addition to our copper plant enhancements, we have deployed fiber-optic cable extensively throughout our network, resulting in a 100% fiber backbone network that supports all of the inter-office and host-remote links, as well as the majority of business parks within our service areas. In addition, this fiber infrastructure provides the connectivity required to provide broadband and long-distance services to our residential and commercial customers. Our fiber network utilizes FTTP and fiber-to-the-node (“FTTN”) networks to offer bundled residential and commercial services.
We operate advanced fiber networks which we own or have entered into long-term leases for fiber network access. At December 31, 2020, our fiber-optic network consisted of over 46,600 route-miles, which includes approximately 8,130 miles of FTTP deployments, approximately 19,900 route miles of fiber located in the northern New England area, approximately 3,880 miles of fiber network in Minnesota and surrounding areas, approximately 4,310 miles of fiber network in Texas including an expansion into the greater Dallas/Fort Worth market, approximately 1,730 route-miles of fiber-optic facilities in the Pittsburgh metropolitan area, approximately 2,240 miles of fiber network in Illinois, approximately 1,100 route-miles of fiber optic facilities in California that cover large parts of the greater Sacramento metropolitan area and approximately 1,110 route-miles of fiber optic facilities in Kansas City that service the greater Kansas City area, including both Kansas and Missouri. Our remaining network includes approximately 4,260 route-miles spanning across various states including portions of Alabama, Colorado, Florida, Georgia, Massachusetts, New York, Ohio, Pennsylvania and Washington.
As of December 31, 2020, we passed more than 2.7 million homes and have direct fiber connections to 13,564 on-net commercial building locations. We intend to continue to make strategic enhancements to our network including improvements in overall network reliability and increases to our broadband speeds. We offer data speeds of up to 1 Gbps in select markets, and up to 100 Mbps in markets where 1 Gbps is not yet available, depending on the geographical region. The majority of the homes in our recently acquired northern New England service territories have availability to broadband speeds of 20 Mbps or less. As part of the strategic investment and equity partnership with Searchlight, we plan to accelerate our fiber build plan and extend fiber coverage enabling multi-Gig data speeds to over 70% of our passings by 2025. The upgrades will be made primarily across seven states including more than 1 million passings within the