Corporate Presentation

Corporate Presentation Investor Relations Telefônica Brasil S.A. November, 2017

DISCLAIMER This presentation may contain forward-looking statements concerning future prospects and objectives regarding growth of the subscriber base, a breakdown of the various services to be offered and their respective results. The exclusive purpose of such statements is to indicate how we intend to expand our business and they should therefore not be regarded as guarantees of future performance. Our actual results may differ materially from those contained in such forward-looking statements, due to a variety of factors, including Brazilian political and economic factors, the development of competitive technologies, access to the capital required to achieve those results, and the emergence of strong competition in the markets in which we operate. For a better understanding, we are presenting pro forma numbers combining Telefônica Brasil and GVT results for all financial and operational indicators for every period as of January, 2015. 2

HIGHLIGHTS RESULTS SYNERGIES STRATEGY MARKET OVERVIEW BACK-UP

3Q17 HIGHLIGHTS ACCELERATING REVENUES ENHANCING PROFITABILITY IMPROVING DIFFERENTIATION Sustaining solid MSR growth above inflation even with one-time effects from wholesale revenues in 3Q16 3.7% yoy Accelerating expansion of Total Service Revenues to 2.4% yoy driven by strong UBB and Mobile Data evolution Continued reduction of voice exposure: nonvoice revenues represent 68% of Service Revenues Recurring Costs dropping for the 7 th quarter in a row -1.0% yoy 33.8% Highest EBITDA Margin in the year (+1.9 p.p. yoy) Net Income reaching R$1.2bn, +28.3% yoy Strong commercial activity: +981k postpaid net adds and +115k FTTH net adds in 3Q17 Superior network expansion: 1,403 new 4G cities and 12 new FTTH cities deployed in 2017 New portfolio with focus on value: Inclusion of unique and innovating features maintaining more for more strategy In 9M17, Free Cash Flow¹ reached R$4.6 billion, representing a growth of 40.8% yoy as a result of EBITDA expansion, working capital and financial optimization 1- Free Cash Flow from business activity. Does not include the R$655.1 million payment in 1Q17 related to the clean-up of the 700MHz 4G spectrum acquired in 2014, the proceeds from the sale of towers received in 2Q16, in the amount of R$562.1 million, and expenses from the provision for organizational restructuring in 2Q16 and 3Q16, in the amounts of R$21.8 million and R$79.3 million. 4

6.0% 5.0% 4.0% 3.0% 2.0% 1.0% 0.0% 70.0% 60.0% 50.0% 40.0% 30.0% 20.0% 10.0% 0.0% 18.0% 16.0% 14.0% 12.0% 10.0% 8.0% 6.0% 4.0% 2.0% 0.0% KEY FINANCIALS Positive service revenue evolution and strong EBITDA expansion leading to double-digit OpCF growth Total and Mobile Service Revenues YoY Recurring¹ EBITDA YoY and EBITDA Margin 2.2% 2.3% 2.4% 4.9% 4.8% 3.7% 3Q16 2Q17 3Q17 Total Service Revenues Mobile Service Revenues Tougher comps in MSR in 3Q17 due to one-time revenues from wholesale agreement in 3Q16. Normalizing this effect, MSR would have grown 6.2% yoy 10.0% 8.0% 6.0% 4.0% 31.9% 33.0% 33.8% 8.1% 6.9% 7.8% 3Q16 2Q17 3Q17 Recurring EBITDA YoY Recurring EBITDA Margin 35.0% 30.0% 25.0% 20.0% Capex² R$ Bn and Capex/Sales OpCF² R$ Bn and OpCF/Sales 2.3 2.1 1.9 1.7 1.5 1.3 18.2% 20.1% 17.0% 1.9 2.2 1.8 3Q16 2Q17 3Q17 Capex ex-licenses Capex/Sales 21.0% Capex acceleration 19.0% in 3Q in accordance 17.0% with investment 15.0% plan for 2017 13.0% 16.6% accumulated 11.0% Capex/Sales in 2017 9.0% 6.0000 5.0000 4.0000 3.0000 2.0000 1.0000 0.0000 15.1% 16.7% 4.8 +12.6% 5.4 9M16 9M17 OpCF OpCF/Sales 1- Does not include the provisions for organizational restructuring in 2Q16 and 3Q15, in the total amounts of R$101.2 million and R$19.2 million, respectively. 2- Does not include spectrum acquisition in the amount of R$185.5 million in 3Q16. 5

HIGHLIGHTS RESULTS SYNERGIES STRATEGY MARKET OVERVIEW BACK-UP

100% 80% 60% 40% 20% 0% 35% 30% 25% 20% 15% 10% 5% 0% MOBILE REVENUES Strong performance of data and digital services boosting mobile service revenues evolution, which was impacted by tougher comps in the quarter Net Mobile Service Revenue¹ R$ Million Expressive data and digital services revenues evolution over the years helping to reduce voice exposure... 3.7% 2,3 6,132 6,272 6,356 272 233 296 YoY 9.1% 34.0% 23.3% 28.2% 50% 59% 73% 3Q15 3Q16 3Q17 % Mobile Data over MSR Data and Digital Services Revenues YoY 3,613 4,500 4,630 28.2%...and maintain strong, consistent postpaid revenues growth Postpaid Revenues 4 YoY% 2,246 1,540 1,433-36.2% 75% 8.5% 8.5% 3Q16 2Q17 3Q17 Outgoing voice Data and Digital Services Incoming voice Column2 Postpaid Revenues over Mobile Service Revenues 3Q16 3Q17 1- Simplified view, the chart s breakdown does not disclose other services revenues. 2- When excluding effect of MTR cuts growth would be 6.1% YoY in 3Q17. 3- Normalizing the effect of onetime revenues from wholesale agreement in 3Q16, MSR would have grown 6.2% YoY. 4- YoY evolution does not include wholesale, M2M and other services revenues. 7

MOBILE ACCESSES Strong commercial performance in postpaid sustaining market share leadership, low churn and consistent ARPU increase Total Mobile: leading market share with solid trends... Mobile Market Share +1.5 p.p. 29.3% 30.8% 3Q16 Aug/2017 42.3% market share in postpaid...combined with strong postpaid net adds... Postpaid Net Adds Thousand Leading postpaid share of net adds in 2017: 46% Highest number of postpaid gross adds since 4Q15 Consolidated leadership in M2M with 40.4% market share (+1.0 p.p. vs 3Q16)...resulting in superior customer mix, lower churn and ARPU increase 44.2% Postpaid Mix 46.7% 47.8% 3Q16 2Q17 3Q17 Total ARPU R$ per month +2.1% Family Plans increasing customer loyalty and protecting our base Postpaid Churn ex. M2M -50% Family Plans Churn 981 27.8 28.4 YoY 870 858 Data 59% 73% 26.3% Voice 41% 27% --32.5% 3Q16 2Q17 3Q17 3Q16 3Q17 8

MOBILE PORTFOLIO Launch of a new mobile portfolio and unique, innovative features to amplify differentiation and improve monetization New postpaid portfolio introducing unique features to amplify Vivo s differentiation and in line with our more for more strategy Data sharing feature contributing to an optimized use of allowances and creation of a community effect Double Play: additional data allowance for video and music streaming apps¹ Essential Apps: mobility apps² that don t impact data consumption NEW NEW Hybrid and Vivo Turbo users able to share, through the Meu Vivo app, their unused data allowances among themselves Users can also request data from other Vivo customers Helps create a community effect around data, improving customer loyalty and fostering digital channels usage Inclusion of VAS³ in the plans improving customer experience Vivo Travel: 7 days of Vivo Travel roaming package per year NEW Data Management and Vivo Bis: allowing customers to optimize data consumption 1- YouTube, Spotify, Vivo Música, Vivo Play and Vivo NBA. 2- Waze, Easy Taxi and Cabify. 9 3- Pure Postpaid: Vivo Sync, Vivo PlayKids, Vivo NBA, Studio+, Vivo Família Online and Vivo Educa. Hybrid: GoRead, Vivo NBA and Kantoo Inglês. Prepaid: GoRead and Vivo NBA.

19.0% 17.0% 15.0% 13.0% 11.0% 9.0% 7.0% FIXED REVENUES Improvement in fixed revenues supported by another quarter of very strong broadband performance and higher corporate revenues Net Fixed Revenue R$ Million Continuous strong performance of FTTH and IPTV +0.5% 4,254 4,163 4,276 Fixed revenue grows 1.8% YoY when adjusting for regulatory effect FTTH Revenue R$ million +31.5% IPTV Revenue R$ million +76.8% 712 604 759 YoY 393 412 445 585 685 720 489 472 487 2,075 1,989 1,865 3Q16 2Q17 3Q17 Voice and Others¹ Pay TV² UBB xdsl Data and IT³ 6.6% 13.3% 23.1% -0.5% -10.1% 7.00 5.00 3.00 3Q16 3Q17 3Q16 3Q17 with potential for improvement as we enhance footprint and adoption 15.0% 17.5% 18.0% 5.5 6.2 6.6 3Q16 2Q17 3Q17 FTTH Homes Passed (million) FTTH Penetration New FTTH cities with very high occupancy rates 4 within the first months: 54% in Barra Mansa (RJ) and 39% in Volta Redonda (RJ) 1- Includes voice, interconnection and other services. 2- Includes DTH and IPTV. 3- Corporate Data and IT. 4- Occupancy rates refers to the number of facilities connected in relation to the number of facilities installed in each city. 10

FIXED ACCESSES Improvement in broadband and pay TV accesses mix driving up ARPUs once again Broadband Accesses and ARPU Pay TV Accesses and ARPU BB Accesses Thousand TOTAL 7,310 7,452 FTTH 10% 16% FTTC¹ 45% 44% xdsl 44% 40% YoY 2% 45% 0% -7% Pay TV Accesses Thousand TOTAL 1,762 IPTV 13% DTH 87% 1,618 22% 78% YoY -8% 54% -17% 3Q16 3Q17 3Q16 3Q17 FTTH Accesses Thousand Net Adds BB ARPU R$ per month IPTV Accesses Thousand Net Adds TV ARPU R$ per month 115 +16.5% 32 +7.2% 28 80 23 52 44.8 52.2 92.6 99.2 3Q15 3Q16 3Q17 3Q16 3Q17 3Q15 3Q16 3Q17 3Q16 3Q17 1- FTTC (Fiber to the Cabinet) includes Cable accesses. 11

CAPEX Investments focused on 4G, fiber and IT to guarantee superior network quality and improve customer experience Capex execution in line with guidance for the year, reaching R$2.2bn in 3Q17 (+12.7% YoY) Capex R$ Billion and % over Net Revenues 16.6% 1,403 new 4G cities deployed in 2017 and implementation of 4G+ in 96 cities Usage of 700MHz spectrum in 199 cities 1,919 New cities in the quarter Existing cities 226 516 +290 820 +304 1,477 +657 +442 3Q16 4Q16 1Q17 2Q17 3Q17 % population covered 49% 60% 65% 71% 76% 5.3 8.0 12 new FTTH cities in 2017, totaling 83 cities in the country, 41 of which with IPTV Average market share of 82% in UBB¹ in FTTH cities launched in 2017 9M17 Capex plan for 2017-19 (annual average) Investments in E2E digitalization of IT infrastructure and processes Switch off of >100 legacy IT systems over the next four years leading to a full stack solution 1- Speeds over 34Mbps. Considers cities launched in 2017 with at least three months of historical information. 12

COSTS AND MARGINS Reducing recurring costs YoY for the 7 th consecutive quarter 3Q17 COST EVOLUTION BREAKDOWN R$(74) MILLION ΔYOY MAIN HIGHLIGHTS 33.8% 33.2% 33.0% 33.8% 31.9% -1.1% -0.6% -1.0% -1.9% -1.8% 3Q16 4Q16 1Q17 2Q17 3Q17 Recurrent Costs Recurrent EBITDA Margin Personnel Costs¹ YoY 7.9% 0.6% 1.0% 3Q16 2Q17 3Q17 Cost of Services Rendered YoY 0.4% -5.0% -4.7% 3Q16 2Q17 3Q17 Commercial Expenses² YoY 5.3% 3.7% -2.2% 3Q16 2Q17 3Q17 Bad Debt / Net Revenue Ratio 3.2% 3.5% 3.5% 3Q16 2Q17 3Q17 13.2% of total Opex Savings from rightsizings in the last years 40.3% of total Opex Interconnection tariff reductions Synergies in TV content and lower mobile content costs 27.6% of total Opex Expenses related to increased commercial activity in premium segments 5.3% of total Opex Credit and collection actions continue to maintain bad debt stable sequentially 1- Does not include the provision for organizational restructuring in 2Q16 and 3Q15, in the total amounts of R$101.2 million and R$19.2 million, respectively. 2- Excluding bad debt. 13

NET INCOME Strong double-digit expansion in 3Q17 driven by EBITDA growth and improved financial management 3Q17 Net Income R$ Million and % yoy REPORTED R$ Million YoY % 7.8% -0.5% -42.5% 70.2% 28.3% 1,400.0 1,200.0 1,000.0 800.0 600.0 400.0 200.0 0.0 126 267 11 (133) 1,223 953 3Q16 EBITDA D&A Financial Result Taxes 3Q17 MAIN VARIATION DRIVERS EBITDA Positively impacted by service revenues expansion both in mobile and fixed and by the cost efficiency measures adopted by the Company FINANCIAL RESULT Positively impacted by lower interest rates and lower average indebtedness in the period TAXES Explained by lower level of Interest on Capital distributed in 3Q17 vs 3Q16 14

FREE CASH FLOW Improving capital efficiency driving strong cash flow generation across all lines Free Cash Flow¹ generation with improvements across the board Improving further financial structure through strong cash generation R$ Million Recurring EBITDA (CAPEX²) (Interest and Income Taxes) (Working Capital) FCF from Business Activity 9M16 9M17 (5,203) (5,334) (895) (1,182) (653) 353 3,236 4,557 9,987 10,719 YoY R$ Million +732-130 -287 +1,006 +1,321 Shareholder remuneration in 2017 Payment Date Gross Amount Amount per share (PN 4 ) Payment of R$4.1 bn in dividends/ioc already declared³: Aug 22, 2017 Dec 13, 2017 Total R$1,568 mn R$2,518 mn R$4,086 mn R$0.96 R$1.54 R$2.50 Gross Debt R$ Billion 9.2 8.1 Dec/16 Sep/17 Net Debt 5 R$ Billion 0.26 0.14 3.7 2.0 Dec/16 Sep/17 Net Debt Net Debt / EBITDA YTD -12.7% YTD -45.0% 1- FCF does not include dividends, IOC and withholding tax. 2- Does not include spectrum acquisition in the amount of R$185.5 million in 3Q16. 3- Based on 2016 net profit. 4- Gross amounts per ON: R$0.87 on Aug 22 and R$1.40 on Dec 13. 15 5- Alignment of classification criteria of the Contingent Consideration guarantee asset to calculate the pro forma net debt.

HIGHLIGHTS RESULTS SYNERGIES STRATEGY MARKET OVERVIEW BACK-UP

SYNERGIES Improvement in the capture of revenue synergies in 3Q17 helping to support free cash flow generation of R$3.7 billion since 2Q15 Guaranteed NPV Cash Flow Synergies NPV R$ Billion 22 % of captured value over Best Case R$ Million 3Q17 Revenues 223 3Q17 Accumulated² 958 REVENUES OPEX 5.5 6.6 18 2.1 7.2 81% 38% Opex EBITDA Capex 172 395 4 1,211 2,169 (66) 108% CAPEX FINANCIAL AND TAX 4.1 3.6 5.9 5.0 Best Case Integration Plan¹ Already Captured 90% 85% Direct CF Indirect CF Impact on OpCF³ 399 210 609 2,104 1,551 3,655 81% of Best Case NPV already guaranteed (+17 p.p. over 3Q16) 1- Trending NPV of synergies points to a total of R$25 bn. 2- Cash Flow Synergies accumulated since 2Q15. 3- Does not include tax and financial cash flow synergies. 17

HIGHLIGHTS RESULTS SYNERGIES STRATEGY MARKET OVERVIEW BACK-UP

STRATEGY Vivo aims to accelerate value creation and sustain absolute leadership in the Brazilian telecom space Vision Be the best alternative for connectivity in Brazil Strategy Totalize customers with a complete, profitable and quality offer Best internet in and out of home Digitalization Efficiency Best customer experience across channels Expansion of FTTH network Best mobile data coverage (3G, 4G 5G) Hub for most relevant digital services Digital processes end to end Leveraging on Big Data Lean company model Synergies Best-in-class stores Highly trained field and customer service teams Complete self-care Foundation Continue being the most valuable and aspirational brand 19

Potential for digitalization EFFICIENCY COMMITMENT Digitalization initiatives leading to optimization of our cost structure and improvement of customer experience Perimeter of our annual opex with potential to be impacted by our digitalization initiatives is significant The initiatives that have high potential to improve efficiency and transform customer experience are being prioritized by the Company......and we are achieving solid evolution in key KPIs + Commissions BILLING AND COLLECTION e-billing penetration YoY +21 p.p. Back office TOP-UPS Represents approximately 1/3 of the annual opex CUSTOMER CARE Sep/16 Sep/17 Digital channels unique users YoY +50% Administrative processes Advertising Installation and maintenance Cost with own stores Sep/16 Sep/17 Virtual Recharges¹ YoY +28% Total annual Opex Perimeter of Opex influenced by digitalization - - Improvement in customer experience + Sep/16 Sep/17 1- September/17 YoY growth of financial volume of virtual recharges made through credit card. 20

2017 PERSPECTIVES Main Financial Perspectives for 2017 Data Centric strategy driving double-digit growth in Mobile Data & Digital and Fixed UBB revenues¹ Continuous EBITDA margin improvement through efficiency, digitalization and synergies Optimized Capex of R$24 billion from 2017 to 2019 R$4.1 billion in shareholders remuneration² (+ 24% y-o-y) with the 1 st instalment paid in August 22, 2017 and the 2 nd instalment to be paid in December 13, 2017 (based on 2016 results) 1- Double-digit growth refers to the combined revenue growth of mobile data and digital services and ultra broadband. 21 2- Shareholders remuneration of R$4.1 billion, being R$1.9 billion in dividends and R$2.2 billion in Interest on Capital (gross amounts).

HIGHLIGHTS RESULTS SYNERGIES STRATEGY MARKET OVERVIEW BACK-UP

Financials MARKET COMPARISON Vivo continues to outperform the market, especially in profitability and cash flow generation Player 2 Player 3 Player 4² 3Q17 YoY 3Q17 YoY 3Q17 YoY 2Q17 YoY Net Service Revenue (R$ mm) 10,631 +2.4% 8,693-1.5% 3,906 +5.9% 5,668-8.7% Mobile Service Revenue (R$ mm) 6,356 +3.7% 2,757 +3.5% 3,706 +5.8% 1,814-3.1% Fixed Service Revenue (R$ mm) 4,276 +0.5% 5,931-3.8% 200 +7.0% 2,227-6.0% EBITDA (R$ mm) 3,677 +7.8% 2,550 +5.9% 1,527 +19.4% 1,601 +10.8% EBITDA Margin 33.8% 1.9 p.p. 28.8% 2.3 p.p. 37.4% 4.6 p.p. 27.6% 4.8 p.p. Capex (ex-licenses) (R$ mm) 2,187 +12.7% n.a² n.a 1.009-5.3% 1,229 +1.1% Operating Cash Flow 1 (R$ mm) 1,489 +1.4% (13.7% of NOR) n.a² n.a. 518 +118.2% (12.7% of NOR) 372 +62.2% (6.6% of NOR) 1- Calculated as Recurring EBITDA Capex (ex-licenses). 2-2Q17 Results as the operator had not released the 3Q17 Results as of the date of this presentation. 23

MARKET COMPARISON With a rational and data centric strategy Vivo continues to lead in higher-value segments and in revenue and EBITDA share Leadership in mobile, with undisputed position in postpaid Mobile Access 3Q17 (million) Solid position in Broadband and High Speed BB Fixed BB Access 3Q17 (million) Best positioned in Net Revenues and EBITDA generation Net Revenue Share 3Q17 (%) Postpaid Prepaid 74.6 59.4 60.4 35.7 16.8 19.3 41.9 9.2 38.9 42.6 41.1 32.7 Vivo Player 3 Player 2 Player 4 Total Market Share BB Mkt Share 31.1% 27.0% 22.6% 1.4% 8.8 7.6 6.4 0.4 Player 2 Vivo Player 4 Player 3 % Speed > 34Mbps Vivo Player 2 Player 3 Player 4 14% 20% 30% 37% 30.9% 24.6% 25.1% 17.4% 20.4% 18.3% 0.9% 95.9% Postpaid Market Share 3Q17 (%) FTTH accesses (thousand) EBITDA Share 3Q17 (%) 42% 23% 20% 11% Vivo Player 2 Player 3 Player 4 % Postpaid Accesses / Total Mobile Accesses 47.8% 32.0% 28.2% 22.0% +45% 1,083 1,198 827 3Q16 2Q17 3Q17 Vivo Player 2 Player 3 Player 4 16% 17% 27% 39% 24

HIGHLIGHTS RESULTS SYNERGIES STRATEGY MARKET OVERVIEW BACK-UP

BACKUP 3Q17 3Q17 Highlights HIGHLIGHTS Consolidated in R$ million 3Q17 3Q16 % 2Q17 % 9M17 9M16 % Net Operating Revenues 10.885,9 10.693,4 1,8 10.697,2 1,8 32.173,2 31.634,8 1,7 Net Operating Services Revenues 10.631,3 10.386,1 2,4 10.434,6 1,9 31.400,1 30.716,1 2,2 Net operating mobile revenues 6.355,5 6.131,7 3,7 6.271,7 1,3 18.835,2 18.026,9 4,5 Net operating fixed revenues 4.275,8 4.254,4 0,5 4.162,9 2,7 12.564,9 12.689,2 (1,0) Net handset revenues 254,6 307,3 (17,2) 262,6 (3,0) 773,1 918,7 (15,8) Operating costs (7.209,0) (7.283,1) (1,0) (7.168,8) 0,6 (21.454,0) (21.235,7) 1,0 Recurring Operating costs 1 (7.209,0) (7.283,1) (1,0) (7.168,8) 0,6 (21.454,0) (21.648,0) (0,9) EBITDA 3.676,9 3.410,3 7,8 3.528,4 4,2 10.719,2 10.399,1 3,1 EBITDA Margin % 33,8% 31,9% 1,9 p.p. 33,0% 0,8 p.p. 33,3% 32,9% 0,4 p.p. Recurring EBITDA 1 3.676,9 3.410,3 7,8 3.528,4 4,2 10.719,2 9.986,8 7,3 Recurring EBITDA Margin 1 % 33,8% 31,9% 1,9 p.p. 33,0% 0,8 p.p. 33,3% 31,6% 1,7 p.p. Net income 1.222,7 952,7 28,3 872,9 40,1 3.091,8 2.870,4 7,7 Recurring Net income 1 1.222,7 952,7 28,3 872,9 40,1 3.091,8 2.598,3 19,0 Capex (ex licenses) 2 2.187,5 1.941,0 12,7 1.818,0 20,3 5.333,6 5.203,5 2,5 Operational Cash Flow 1,2 1.489,4 1.469,3 1,4 1.710,4 (12,9) 5.385,6 4.783,3 12,6 Total accesses (thousand) 97.639 97.201 0,5 97.585 0,1 97.639 97.201 0,5 Total mobile accesses 74.562 73.495 1,5 74.335 0,3 74.562 73.495 1,5 Total fixed accesses 23.077 23.706 (2,7) 23.250 (0,7) 23.077 23.706 (2,7) 1) Excludes the non-recurring effect from the sale of towers in 1Q16, positively impacting costs and EBITDA by R$513.5 million and the net income by R$338.9 million, and the non-recurring effect from the corporate restructuring in 2Q16, negatively impacting costs and EBITDA by R$101.2 million and the net income by R$66.8 million; 26 2) Excludes the amount of the 2.5GHz licenses acquired through the ANATEL auction of spectrum leftovers in December 17 2015, in the amount of R$ 185.5 million.

BACKUP 3Q17 3Q17 Financial Figures NET OPERATING MOBILE REVENUES Consolidated in R$ million 3Q17 3Q16 % 2Q17 % 9M17 9M16 % Net operating mobile revenues 6.610,1 6.439,0 2,7 6.534,3 1,2 19.608,4 18.945,6 3,5 Net service mobile revenues 6.355,5 6.131,7 3,7 6.271,7 1,3 18.835,2 18.026,9 4,5 Outgoing voice 1.433,0 2.245,9 (36,2) 1.539,9 (6,9) 4.645,0 6.903,1 (32,7) Interconnection 296,4 271,8 9,1 233,1 27,1 802,1 956,1 (16,1) Data plus Digital Services 4.630,5 3.612,9 28,2 4.500,5 2,9 13.389,7 10.120,9 32,3 Messaging P2P 350,5 385,4 (9,1) 367,9 (4,7) 1.091,2 1.149,0 (5,0) Internet 3.289,9 2.671,2 23,2 3.530,6 (6,8) 10.214,7 7.289,1 40,1 Digital Services 990,0 556,3 78,0 602,0 64,5 2.083,8 1.682,8 23,8 Other services (4,3) 1,1 n.a. (1,8) 138,5 (1,6) 46,7 n.a. Net handset revenues 254,6 307,3 (17,2) 262,6 (3,0) 773,1 918,7 (15,8) % Data plus Digital Services Revenues / MSR 72,9% 58,9% 13,9 p.p. 71,8% 1,1 p.p. 71,1% 56,1% 14,9 p.p. NET OPERATING FIXED REVENUES Consolidated in R$ million 3Q17 3Q16 % 2Q17 % 9M17 9M16 % Net operating fixed revenue 4.275,8 4.254,4 0,5 4.162,9 2,7 12.564,9 12.689,2 (1,0) Voice 1.658,5 1.860,4 (10,9) 1.778,6 (6,8) 5.233,3 5.735,0 (8,7) Interconnection 41,3 57,9 (28,6) 43,6 (5,3) 135,4 217,4 (37,7) Broadband¹ 1.165,8 978,4 19,2 1.096,8 6,3 3.326,5 2.901,7 14,6 Corporate Data and IT 758,8 711,9 6,6 604,5 25,5 1.948,0 1.900,5 2,5 Pay TV 486,6 489,1 (0,5) 472,3 3,0 1.437,5 1.446,8 (0,6) Other services 164,7 156,7 5,1 167,2 (1,5) 484,1 487,8 (0,8) % Non-Voice Revenues² / Net Operating Fixed Revenue 60,2% 54,9% 5,3 p.p. 56,2% 4,0 p.p. 57,3% 53,1% 4,2 p.p. Note: As of 3Q16, for a better understanding of the mobile business and to better reflect the results of our digital initiatives, digital services and VAS revenues were booked under the same line. For comparison purposes, historical figures were reclassified. The 2015 and 2016 data can be found on our website (www.telefonica.com.br/ir). 27 1) Broadband revenue includes residential clients and SMEs. 2) Non-voice revenue includes revenues for Broadband, Corporate Data and IT, Pay TV and Other Services.

BACKUP 3Q17 3Q17 Mobile Operational Figures MOBILE OPERATING PERFORMANCE Thousand 3Q17 3Q16 % 2Q17 % 9M17 9M16 % Mobile total accesses 74.562 73.495 1,5 74.335 0,3 74.562 73.495 1,5 Postpaid 35.664 32.499 9,7 34.683 2,8 35.664 32.499 9,7 M2M 5.854 4.778 22,5 5.599 4,6 5.854 4.778 22,5 Prepaid 38.897 40.996 (5,1) 39.652 (1,9) 38.897 40.996 (5,1) Market Share 30,8% 29,3% 1,5 p.p. 30,7% 0,1 p.p. 30,8% 29,3% 1,5 p.p. Postpaid¹ 42,3% 42,4% (0,1) p.p. 42,3% (0,0) p.p. 42,3% 42,4% (0,1) p.p. Mobile Broadband (modem only)¹ 49,6% 50,0% (0,4) p.p. 50,0% (0,4) p.p. 49,6% 50,0% (0,4) p.p. Net additions 227 191 18,7 338 (33,0) 784 226 246,4 Postpaid 981 870 12,8 858 14,4 2.274 1.425 59,6 Market Share of postpaid net additions¹ 38,4% 45,2% (6,8) p.p. 59,0% (20,6) p.p. 45,6% 43,2% 2,4 p.p. Market penetration¹ 116,5% 121,6% (5,1) p.p. 116,6% (0,0) p.p. 116,5% 121,6% (5,1) p.p. Monthly churn 3,4% 3,4% (0,0) p.p. 3,3% 0,1 p.p. 3,4% 3,3% 0,0 p.p. Postpaid ex. M2M 1,8% 1,7% 0,0 p.p. 1,8% (0,0) p.p. 1,7% 1,8% (0,1) p.p. Prepaid 4,8% 4,7% 0,1 p.p. 4,6% 0,2 p.p. 4,7% 4,5% 0,2 p.p. ARPU (R$/month)² 28,4 27,8 2,1 28,2 0,8 28,2 27,3 3,3 Voice 7,7 11,4 (32,5) 8,0 (3,1) 8,2 12,0 (31,9) Data 20,7 16,4 26,3 20,2 2,4 20,1 15,3 30,7 Postpaid ex. M2M ARPU² 51,5 51,2 0,7 52,6 (2,1) 52,0 50,8 2,4 Prepaid ARPU² 13,5 13,6 (0,6) 13,1 3,5 13,4 13,6 (1,5) M2M ARPU² 2,8 2,4 18,5 3,2 (10,6) 3,0 3,0 0,1 MOU 160,4 158,9 1,0 158,1 1,5 158,6 156,8 1,1 1) August 2017 (Market Share of postpaid net additions: July and August 2017). 2) ARPU data including intercompany revenue eliminations. 28

BACKUP 3Q17 3Q17 Fixed Operational Figures FIXED OPERATING PERFORMANCE Thousand 3Q17 3Q16 % 2Q17 % 9M17 9M16 % Total fixed accesses 23.077 23.706 (2,7) 23.250 (0,7) 23.077 23.706 (2,7) Fixed voice accesses 14.007 14.634 (4,3) 14.168 (1,1) 14.007 14.634 (4,3) Residential 9.059 9.581 (5,4) 9.178 (1,3) 9.059 9.581 (5,4) Corporate 4.503 4.609 (2,3) 4.545 (0,9) 4.503 4.609 (2,3) Others 445 444 0,2 444 0,2 445 444 0,2 Fixed broadband 7.452 7.310 1,9 7.435 0,2 7.452 7.310 1,9 FTTx 4.472 4.115 8,7 4.366 2,4 4.472 4.115 8,7 Others 2.980 3.194 (6,7) 3.069 (2,9) 2.980 3.194 (6,7) Pay TV 1.618 1.762 (8,2) 1.647 (1,8) 1.618 1.762 (8,2) Voice ARPU (R$/month) 39,3 42,2 (7,0) 41,7 (5,9) 41,0 42,9 (4,6) Broadband ARPU (R$/month) 52,2 44,8 16,5 49,5 5,5 50,1 44,6 12,2 Pay TV ARPU (R$/month) 99,2 92,6 7,2 95,1 4,4 96,3 90,7 6,3 29

BACKUP 3Q17 3Q17 Financial Statements Consolidated in R$ million 3Q17 3Q16 % 2Q17 % 9M17 9M16 % Gross Operating Revenues 16.582,8 16.259,1 2,0 16.553,2 0,2 49.706,4 48.294,1 2,9 Net Operating Revenues 10.885,9 10.693,4 1,8 10.697,2 1,8 32.173,2 31.634,8 1,7 Mobile 6.610,1 6.439,0 2,7 6.534,3 1,2 19.608,4 18.945,6 3,5 Fixed 4.275,8 4.254,4 0,5 4.162,9 2,7 12.564,9 12.689,2 (1,0) Operating Costs (7.209,0) (7.283,1) (1,0) (7.168,8) 0,6 (21.454,0) (21.235,7) 1,0 Personnel (948,4) (939,0) 1,0 (916,1) 3,5 (2.776,4) (2.871,6) (3,3) Costs of services rendered (2.906,8) (3.050,6) (4,7) (2.861,8) 1,6 (8.679,8) (9.124,1) (4,9) Interconnection (351,9) (453,7) (22,4) (324,6) 8,4 (1.069,5) (1.461,3) (26,8) Taxes and contributions (448,2) (496,3) (9,7) (449,5) (0,3) (1.355,1) (1.430,4) (5,3) Third-party services (1.426,9) (1.463,9) (2,5) (1.388,2) 2,8 (4.230,8) (4.384,6) (3,5) Others (679,8) (636,7) 6,8 (699,5) (2,8) (2.024,4) (1.847,8) 9,6 Cost of goods sold (483,9) (513,5) (5,8) (464,7) 4,1 (1.421,3) (1.565,1) (9,2) Commercial Expenses (2.366,9) (2.257,8) 4,8 (2.356,8) 0,4 (6.969,1) (6.619,8) 5,3 Provision for bad debt (380,4) (342,6) 11,0 (370,8) 2,6 (1.108,9) (1.004,0) 10,4 Third-party services (1.890,6) (1.840,9) 2,7 (1.884,2) 0,3 (5.581,1) (5.371,3) 3,9 Others (95,9) (74,3) 29,1 (101,8) (5,8) (279,1) (244,5) 14,2 General and administrative expenses (378,2) (372,9) 1,4 (364,5) 3,8 (1.110,4) (1.148,6) (3,3) Other net operating revenue (expenses) (124,8) (149,3) (16,4) (204,9) (39,1) (497,0) 93,5 n.a. EBITDA 3.676,9 3.410,3 7,8 3.528,4 4,2 10.719,2 10.399,1 3,1 EBITDA Margin % 33,8% 31,9% 1,9 p.p. 33,0% 0,8 p.p. 33,3% 32,9% 0,4 p.p. Depreciation and Amortization (1.962,0) (1.972,6) (0,5) (1.957,2) 0,2 (5.862,8) (5.839,2) 0,4 EBIT 1.714,9 1.437,7 19,3 1.571,2 9,1 4.856,4 4.559,9 6,5 Net Financial Income (170,5) (296,3) (42,5) (264,3) (35,5) (725,2) (919,2) (21,1) Gain (loss) on investments 0,0 0,3 n.a. 0,5 n.a. 1,3 1,0 30,0 Taxes (321,7) (189,0) 70,2 (434,5) (26,0) (1.040,7) (771,3) 34,9 Net income 1.222,7 952,7 28,3 872,9 40,1 3.091,8 2.870,4 7,7 30

BACKUP 3Q17 3Q17 Financial Data LOANS AND FINANCING (R$ million) Local currency Consolidated Currency Annual Interest Rate Due Date Short-term Long-term Total BNDES UR LTIR LTIR + 0.00% to 4.08% Until 2023 632,1 1.089,9 1.722,0 BNDES R$ 2.5% to 6.0% Until 2023 89,8 171,3 261,1 BNDES R$ SELIC D-2 + 2.32% Until 2023 50,9 319,0 369,9 BNB R$ 7.0% to 10.0% Until 2022 15,1 58,5 73,5 Confirming R$ 109.1% to 117.1% of CDI Until 2018 439,7-439,7 Debentures 4 th issue - Series 3 R$ IPCA + 4.0% Until 2019 1,5 39,6 41,1 Debentures 1 st issue - Minas Comunica R$ IPCA + 0.5% Until 2021 28,3 71,4 99,7 Debentures 4 th issue - Single Series R$ 100% of CDI + 0.68 spread Until 2018 1.358,7-1.358,7 Debentures 5 th issue - Single Series R$ 108.25% of CDI Until 2022 26,4 1.996,2 2.022,5 Financial Leases R$ - Until 2033 40,1 348,1 388,2 Contingent Consideration R$ - Until 2025-440,4 440,4 Foreign currency September 2017 Resolution 4131 US$ 2.05% and Libor + 2.00% Until 2017 589,4-589,4 BNDES UMBND ECM + 2.38% Until 2019 136,4 113,9 250,3 Total 3.408,2 4.648,4 8.056,6 NET FINANCIAL DEBT Consolidated in R$ million 9/30/2017 6/30/2017 9/30/2016 L.T. OBLIGATIONS (R$ million) September 2017 Short-term Debt 3.408,2 5.540,2 3.715,7 Long-term Debt 4.648,4 4.881,8 5.128,5 Year Amount Total Debt 8.056,6 10.422,0 8.844,2 2018 278,4 Cash and cash equivalents (5.582,7) (7.458,4) (5.837,4) 2019 831,5 Net derivatives position (18,8) (77,2) (10,6) 2020 405,0 Contingent Consideration Guarantee Asset² (440,4) (432,9) (404,8) 2021 1.276,6 Net debt 2.014,7 2.453,5 2.591,5 After 2021 1.856,9 Net debt/ebitda³ 0,14 0,17 0,19 Total 4.648,4 1) Includes investments in BNB given as a guarantee for loans with that bank. 2) Alignment of the classification criterion of the contingent consideration guarantee asset for the purposes of calculating pro-forma net debt. 3) LTM EBITDA. 31

MACROECONOMICS Macroeconomic scenario improving in 2017 Inflation¹ Interest Rate¹ Exchange Rate¹ GDP¹ Unemployment² IPCA % 10.7 6.3 3.0 4.0 2015 2016 2017E 2018E Average Selic % 13.6 14.2 9.8 7.2 2015 2016 2017E 2018E Average R$/US$ 3.5 3.3 3.2 3.3 2015 2016 2017E 2018E Growth % -3.8-3.6 0.7 2.7 2015 2016 2017E 2018E Average % 11.5 12.6 11.8 8.5 2015 2016 2017E 2018E Inflation surprising to the downside as a result of the recession, FX appreciation and positive food supply shock Inflation expectations below the target opens room for a significant and sustainable reduction of interest rates BRL appreciates amid favorable international scenario and advance of reforms GDP growth to recover in 2017/2018 on the back of lower inflation, interest rates cuts and advance of reforms Unemployment rate expected to decline in 2018, responding to the GDP growth recovery 1- Source: Focus bulletin, October, 2017. 2- Source: Bloomberg, October, 2017. 32

FOR FURTHER INFORMATION: INVESTOR RELATIONS +55 11 3430.3687 ir.br@telefonica.com www.telefonica.com.br/ir