revenue generated by rent increases based on fixed escalation clauses is recognized on a straight-line basis over the non-cancellable term of the applicable agreement . we also routinely seek to extend our leases with our tenants , which increases the non-cancellable term of the lease and creates incremental growth in our revenues . the revenues generated by our rental and management operations may also be affected by cancellations of existing tenant leases . as discussed above , most of our tenant leases with wireless carriers and broadcasters are multi-year contracts , which typically may not be cancelled or , in some instances , may be cancelled only upon payment of a termination fee . accordingly , revenue lost from either cancellations of leases at the end of their terms or rent negotiations historically have not had a material adverse effect on the revenues generated by our rental and management operations . during the year ended december 31 , 2011 , loss of annual revenue from tenant lease cancellations or renegotiations represented less than 2 % of our rental and management operations revenues . rental and management operations revenue growth . the primary factors affecting the consistent revenue and incremental growth for our domestic and international rental and management segments are new revenue generated from new sites acquired or constructed since the beginning of the prior year period ( new sites ) and organic revenue growth , which consists of : recurring revenues from tenant leases generated from sites which existed in our portfolio as of the beginning of the prior year period ( legacy sites ) ; contractual rent escalations on existing tenant leases , net of cancellations ; and new revenue generated from leasing additional space on our legacy sites . we continue to believe that our site leasing revenue is likely to increase due to the growing use of wireless communications services and our ability to meet that demand by adding new tenants and new equipment for existing tenants on our legacy sites , which increases the utilization and profitability of our sites . in addition , we believe the majority of our site leasing activity will continue to come from wireless service providers . our legacy site portfolio and our established tenant base provide us with new business opportunities , which have historically resulted in consistent and predictable organic revenue growth . in addition , we intend to continue to supplement the organic growth on our legacy sites by selectively developing or acquiring new sites in our existing and new markets where we can achieve our return on investment criteria . rental and management operations organic revenue growth . consistent with our strategy to increase the utilization and return on investment of our legacy sites , our objective is to add new tenants and new equipment for existing tenants on our legacy sites . our ability to lease additional space on our sites is primarily a function of the rate at which wireless carriers deploy capital to improve and expand their wireless networks . this rate , in turn , is influenced by the growth of wireless communications services and related infrastructure needs , the financial performance of our tenants and their access to capital and general economic conditions . the following key trends within each market that we serve provide opportunities for organic revenue growth : domestic . the majority of wireless subscribers in the united states currently utilize 3g technology based handsets , for both voice and data applications . as a result of the rapid subscriber adoption of wireless data applications , wireless service providers continue to invest in their 3g networks by adding 31 new cell sites as well as additional equipment to their existing cell sites . this level of wireless communications services growth has produced consistent levels of annual wireless carrier capital investment and as a result , we have experienced consistent demand for our communications sites . in addition , wireless service providers in the united states continue to pursue new avenues for growth , such as deploying 4g technology based wireless networks to provide higher speed data services and enable fixed broadband substitution . as wireless service providers begin to deploy 4g wireless networks , we expect them to overlay 4g equipment across their existing networks of communications sites , resulting in additional revenue . subsequent to the initial deployment and based on actual subscriber demand , we expect providers to add additional equipment and new communications sites to improve the coverage and capacity of their 4g wireless networks as subscribers transition from 3g handsets . in connection with consistent levels of annual wireless carrier capital investment , this technology migration has historically provided consistent demand for our communications sites as our tenants migrate from one technology to the next to remain competitive . international . in general , our international markets are less advanced with respect to the current technologies deployed for wireless services . as a result , demand for our communications sites is driven by continued voice network investments , new market entrants and initial 3g data network deployments . for example , in india , nationwide voice networks continue to be deployed as wireless service providers are beginning their investments in 3g data networks . similarly , in ghana , wireless service providers continue to build out their voice and data networks in order to satisfy increasing demand for wireless services . in south africa , where voice networks are in a more advanced stage of development , carriers are beginning to deploy 3g data networks across spectrum from recent spectrum auctions . in mexico and brazil , where nationwide voice networks have also been deployed , some incumbent wireless service providers continue to invest in their 3g data networks , and recent spectrum auctions have enabled other incumbent wireless service providers and new market entrants to begin their initial investments in 3g data networks . story_separator_special_tag the etrs on income from continuing operations for the years ended december 31 , 2011 and 2010 differ from the federal statutory rate primarily attributable to adjustments for foreign items , non-deductible stock-based compensation expense , tax reserves and state taxes . net income/adjusted ebitda replace_table_token_14_th net income for the year ended december 31 , 2011 increased 2 % to $ 381.8 million . the increase was primarily attributable to increases in our rental and management and network development services segment operating profit , as described above , partially offset by an increase in other expense ( income ) , depreciation , amortization and accretion and interest expense . adjusted ebitda for the year ended december 31 , 2011 increased 18 % to $ 1,595.4 million . adjusted ebitda growth was primarily attributable to the increase in our rental and management segments gross margin and network development services segment gross margin , and was partially offset by an increase in selling , general , administrative and development expenses , excluding stock-based compensation expense . 38 years ended december 31 , 2010 and 2009 ( in thousands ) revenue replace_table_token_15_th total revenues for the year ended december 31 , 2010 increased 15 % to $ 1,985.3 million . the increase was primarily attributable to an increase in both of our rental and management segments , including organic revenue growth attributable to our legacy sites and revenue growth attributable to the approximately 11,400 new sites that we have constructed or acquired since january 1 , 2009. this growth was partially offset by a decrease in network development services segment revenue . domestic rental and management segment revenue for the year ended december 31 , 2010 increased 11 % to $ 1,565.5 million . this growth was comprised of : approximately 9 % from organic revenue growth , which was due to the incremental revenue generated from adding new tenants to legacy sites , existing tenants adding more equipment to legacy sites , contractual rent escalations and a one-time revenue item , partially offset by tenant lease cancellations and a decline in revenue attributable to a tenant take or pay agreement and settlement from 2009 , which did not recur in 2010 ; and revenue growth from new sites of approximately 2 % , which was a result of the construction or acquisition of approximately 1,500 new domestic sites since january 1 , 2009. international rental and management segment revenue for the year ended december 31 , 2010 increased 43 % to $ 370.9 million . this growth was comprised of : approximately 8 % from organic revenue growth , which was due to the incremental revenue generated from adding new tenants to legacy sites , existing tenants adding more equipment to legacy sites , contractual rent escalations , the positive impact of foreign currency translation and the positive impact from straight-line lease accounting , and was partially offset by tenant lease cancellations and renegotiations with our largest tenant in mexico ; and revenue growth from new sites of approximately 35 % , which was a result of the construction or acquisition of approximately 9,900 new international sites since january 1 , 2009. network development services segments revenue for the year ended december 31 , 2010 decreased 12 % to $ 49.0 million . the decrease was primarily attributable to revenues generated during the year ended december 31 , 2009 for a material acquisition , zoning and permitting project with a major tenant , which did not recur in 2010 . 39 gross margin replace_table_token_16_th domestic rental and management segment gross margin for the year ended december 31 , 2010 increased 13 % to $ 1,240.1 million . the growth was primarily attributable to the increase in revenue as described above , and was partially offset by a 4 % increase in direct operating costs , of which 1 % was attributable to expense increases on our legacy domestic sites and 3 % was attributable to the incremental direct operating costs associated with the addition of approximately 1,500 new domestic sites since january 1 , 2009. international rental and management segment gross margin for the year ended december 31 , 2010 increased 30 % to $ 262.8 million . the growth was primarily attributable to the increase in revenue as described above , and was partially offset by a 70 % increase in direct operating costs , including pass-through expenses , of which 10 % was attributable to expense increases on our legacy international sites and 60 % was attributable to the incremental costs associated with the addition of approximately 9,900 new international sites since january 1 , 2009. network development services segment gross margin for the year ended december 31 , 2010 decreased 6 % to $ 22.0 million . the decrease was primarily attributable to the reduction in revenue attributable to our site acquisition , zoning and permitting services . selling , general , administrative and development expense replace_table_token_17_th total sg & a for the year ended december 31 , 2010 , increased 14 % to $ 229.8 million . the increase was primarily attributable to an increase in both of our rental and management segments and corporate overhead to support the continued growth of our operations . these increases were partially offset by lower stock-based compensation expense . domestic rental and management sg & a for the year ended december 31 , 2010 increased 12 % to $ 62.3 million . the increase was primarily attributable to initiatives designed to drive growth and to support a growing portfolio , including increased staffing in field operations , sales and finance , as well as costs associated with establishing a dedicated team to more actively pursue new product lines , such as shared generators and outdoor das networks . 40 international rental and management sg & a for the year ended december 31 , 2010 , increased 50 % to $ 45.9 million . the increase was primarily attributable to our increased

cash flows from investing activities for the year ended december 31 , 2011 , cash used for investing activities was $ 2,790.8 million , an increase of approximately $ 1,489.9 million , as compared to the year ended december 31 , 2010. this increase was primarily comprised of increased spending for acquisitions during the year ended december 31 , 2011 . 44 during the year ended december 31 , 2011 , payments for purchases of property and equipment and construction activities totaled $ 523.0 million , including $ 296.9 million of capital expenditures for discretionary capital projects , such as completion of the construction of approximately 1,850 communications sites , $ 91.3 million spent to acquire land under our towers that was subject to ground agreements ( including leases ) , $ 79.5 million of capital expenditures related to capital improvements and corporate capital expenditures primarily attributable to information technology improvements and $ 55.3 million for the redevelopment of existing sites to accommodate new tenant equipment . in addition , during the year ended december 31 , 2011 , we spent $ 2,320.7 million to acquire approximately 8,620 communications sites in the united states , brazil , chile , colombia , ghana , mexico and south africa and approximately 2,150 property interests under communications sites in the united states . we plan to continue to allocate our available capital after our reit distribution requirements among investment alternatives that meet our return on investment criteria . accordingly , we may continue to acquire communications sites , acquire land under our towers , build or install new communications sites and redevelop or improve existing communications sites when the expected returns on such investments meet our return on investment criteria .


 Write a concise suspicious activity report of the following text delimited by triple backquotes. Return your response as a formal report which covers the key points highlighting the location,dates,entity names and account holder information in chronological order of the text.
     ```cash flows from investing activities for the year ended december 31 , 2011 , cash used for investing activities was $ 2,790.8 million , an increase of approximately $ 1,489.9 million , as compared to the year ended december 31 , 2010. this increase was primarily comprised of increased spending for acquisitions during the year ended december 31 , 2011 . 44 during the year ended december 31 , 2011 , payments for purchases of property and equipment and construction activities totaled $ 523.0 million , including $ 296.9 million of capital expenditures for discretionary capital projects , such as completion of the construction of approximately 1,850 communications sites , $ 91.3 million spent to acquire land under our towers that was subject to ground agreements ( including leases ) , $ 79.5 million of capital expenditures related to capital improvements and corporate capital expenditures primarily attributable to information technology improvements and $ 55.3 million for the redevelopment of existing sites to accommodate new tenant equipment . in addition , during the year ended december 31 , 2011 , we spent $ 2,320.7 million to acquire approximately 8,620 communications sites in the united states , brazil , chile , colombia , ghana , mexico and south africa and approximately 2,150 property interests under communications sites in the united states . we plan to continue to allocate our available capital after our reit distribution requirements among investment alternatives that meet our return on investment criteria . accordingly , we may continue to acquire communications sites , acquire land under our towers , build or install new communications sites and redevelop or improve existing communications sites when the expected returns on such investments meet our return on investment criteria .
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 Suspicious Activity Report : revenue generated by rent increases based on fixed escalation clauses is recognized on a straight-line basis over the non-cancellable term of the applicable agreement . we also routinely seek to extend our leases with our tenants , which increases the non-cancellable term of the lease and creates incremental growth in our revenues . the revenues generated by our rental and management operations may also be affected by cancellations of existing tenant leases . as discussed above , most of our tenant leases with wireless carriers and broadcasters are multi-year contracts , which typically may not be cancelled or , in some instances , may be cancelled only upon payment of a termination fee . accordingly , revenue lost from either cancellations of leases at the end of their terms or rent negotiations historically have not had a material adverse effect on the revenues generated by our rental and management operations . during the year ended december 31 , 2011 , loss of annual revenue from tenant lease cancellations or renegotiations represented less than 2 % of our rental and management operations revenues . rental and management operations revenue growth . the primary factors affecting the consistent revenue and incremental growth for our domestic and international rental and management segments are new revenue generated from new sites acquired or constructed since the beginning of the prior year period ( new sites ) and organic revenue growth , which consists of : recurring revenues from tenant leases generated from sites which existed in our portfolio as of the beginning of the prior year period ( legacy sites ) ; contractual rent escalations on existing tenant leases , net of cancellations ; and new revenue generated from leasing additional space on our legacy sites . we continue to believe that our site leasing revenue is likely to increase due to the growing use of wireless communications services and our ability to meet that demand by adding new tenants and new equipment for existing tenants on our legacy sites , which increases the utilization and profitability of our sites . in addition , we believe the majority of our site leasing activity will continue to come from wireless service providers . our legacy site portfolio and our established tenant base provide us with new business opportunities , which have historically resulted in consistent and predictable organic revenue growth . in addition , we intend to continue to supplement the organic growth on our legacy sites by selectively developing or acquiring new sites in our existing and new markets where we can achieve our return on investment criteria . rental and management operations organic revenue growth . consistent with our strategy to increase the utilization and return on investment of our legacy sites , our objective is to add new tenants and new equipment for existing tenants on our legacy sites . our ability to lease additional space on our sites is primarily a function of the rate at which wireless carriers deploy capital to improve and expand their wireless networks . this rate , in turn , is influenced by the growth of wireless communications services and related infrastructure needs , the financial performance of our tenants and their access to capital and general economic conditions . the following key trends within each market that we serve provide opportunities for organic revenue growth : domestic . the majority of wireless subscribers in the united states currently utilize 3g technology based handsets , for both voice and data applications . as a result of the rapid subscriber adoption of wireless data applications , wireless service providers continue to invest in their 3g networks by adding 31 new cell sites as well as additional equipment to their existing cell sites . this level of wireless communications services growth has produced consistent levels of annual wireless carrier capital investment and as a result , we have experienced consistent demand for our communications sites . in addition , wireless service providers in the united states continue to pursue new avenues for growth , such as deploying 4g technology based wireless networks to provide higher speed data services and enable fixed broadband substitution . as wireless service providers begin to deploy 4g wireless networks , we expect them to overlay 4g equipment across their existing networks of communications sites , resulting in additional revenue . subsequent to the initial deployment and based on actual subscriber demand , we expect providers to add additional equipment and new communications sites to improve the coverage and capacity of their 4g wireless networks as subscribers transition from 3g handsets . in connection with consistent levels of annual wireless carrier capital investment , this technology migration has historically provided consistent demand for our communications sites as our tenants migrate from one technology to the next to remain competitive . international . in general , our international markets are less advanced with respect to the current technologies deployed for wireless services . as a result , demand for our communications sites is driven by continued voice network investments , new market entrants and initial 3g data network deployments . for example , in india , nationwide voice networks continue to be deployed as wireless service providers are beginning their investments in 3g data networks . similarly , in ghana , wireless service providers continue to build out their voice and data networks in order to satisfy increasing demand for wireless services . in south africa , where voice networks are in a more advanced stage of development , carriers are beginning to deploy 3g data networks across spectrum from recent spectrum auctions . in mexico and brazil , where nationwide voice networks have also been deployed , some incumbent wireless service providers continue to invest in their 3g data networks , and recent spectrum auctions have enabled other incumbent wireless service providers and new market entrants to begin their initial investments in 3g data networks . story_separator_special_tag the etrs on income from continuing operations for the years ended december 31 , 2011 and 2010 differ from the federal statutory rate primarily attributable to adjustments for foreign items , non-deductible stock-based compensation expense , tax reserves and state taxes . net income/adjusted ebitda replace_table_token_14_th net income for the year ended december 31 , 2011 increased 2 % to $ 381.8 million . the increase was primarily attributable to increases in our rental and management and network development services segment operating profit , as described above , partially offset by an increase in other expense ( income ) , depreciation , amortization and accretion and interest expense . adjusted ebitda for the year ended december 31 , 2011 increased 18 % to $ 1,595.4 million . adjusted ebitda growth was primarily attributable to the increase in our rental and management segments gross margin and network development services segment gross margin , and was partially offset by an increase in selling , general , administrative and development expenses , excluding stock-based compensation expense . 38 years ended december 31 , 2010 and 2009 ( in thousands ) revenue replace_table_token_15_th total revenues for the year ended december 31 , 2010 increased 15 % to $ 1,985.3 million . the increase was primarily attributable to an increase in both of our rental and management segments , including organic revenue growth attributable to our legacy sites and revenue growth attributable to the approximately 11,400 new sites that we have constructed or acquired since january 1 , 2009. this growth was partially offset by a decrease in network development services segment revenue . domestic rental and management segment revenue for the year ended december 31 , 2010 increased 11 % to $ 1,565.5 million . this growth was comprised of : approximately 9 % from organic revenue growth , which was due to the incremental revenue generated from adding new tenants to legacy sites , existing tenants adding more equipment to legacy sites , contractual rent escalations and a one-time revenue item , partially offset by tenant lease cancellations and a decline in revenue attributable to a tenant take or pay agreement and settlement from 2009 , which did not recur in 2010 ; and revenue growth from new sites of approximately 2 % , which was a result of the construction or acquisition of approximately 1,500 new domestic sites since january 1 , 2009. international rental and management segment revenue for the year ended december 31 , 2010 increased 43 % to $ 370.9 million . this growth was comprised of : approximately 8 % from organic revenue growth , which was due to the incremental revenue generated from adding new tenants to legacy sites , existing tenants adding more equipment to legacy sites , contractual rent escalations , the positive impact of foreign currency translation and the positive impact from straight-line lease accounting , and was partially offset by tenant lease cancellations and renegotiations with our largest tenant in mexico ; and revenue growth from new sites of approximately 35 % , which was a result of the construction or acquisition of approximately 9,900 new international sites since january 1 , 2009. network development services segments revenue for the year ended december 31 , 2010 decreased 12 % to $ 49.0 million . the decrease was primarily attributable to revenues generated during the year ended december 31 , 2009 for a material acquisition , zoning and permitting project with a major tenant , which did not recur in 2010 . 39 gross margin replace_table_token_16_th domestic rental and management segment gross margin for the year ended december 31 , 2010 increased 13 % to $ 1,240.1 million . the growth was primarily attributable to the increase in revenue as described above , and was partially offset by a 4 % increase in direct operating costs , of which 1 % was attributable to expense increases on our legacy domestic sites and 3 % was attributable to the incremental direct operating costs associated with the addition of approximately 1,500 new domestic sites since january 1 , 2009. international rental and management segment gross margin for the year ended december 31 , 2010 increased 30 % to $ 262.8 million . the growth was primarily attributable to the increase in revenue as described above , and was partially offset by a 70 % increase in direct operating costs , including pass-through expenses , of which 10 % was attributable to expense increases on our legacy international sites and 60 % was attributable to the incremental costs associated with the addition of approximately 9,900 new international sites since january 1 , 2009. network development services segment gross margin for the year ended december 31 , 2010 decreased 6 % to $ 22.0 million . the decrease was primarily attributable to the reduction in revenue attributable to our site acquisition , zoning and permitting services . selling , general , administrative and development expense replace_table_token_17_th total sg & a for the year ended december 31 , 2010 , increased 14 % to $ 229.8 million . the increase was primarily attributable to an increase in both of our rental and management segments and corporate overhead to support the continued growth of our operations . these increases were partially offset by lower stock-based compensation expense . domestic rental and management sg & a for the year ended december 31 , 2010 increased 12 % to $ 62.3 million . the increase was primarily attributable to initiatives designed to drive growth and to support a growing portfolio , including increased staffing in field operations , sales and finance , as well as costs associated with establishing a dedicated team to more actively pursue new product lines , such as shared generators and outdoor das networks . 40 international rental and management sg & a for the year ended december 31 , 2010 , increased 50 % to $ 45.9 million . the increase was primarily attributable to our increased

