AT&T IoT Transformation Speaker Name | Title November 2018

Cautionary language concerning forward-looking statements Information set forth in this presentation contains forward-looking statements that are subject to risks and uncertainties, and actual results might differ materially. AT&T disclaims any obligation to update and revise statements contained in this presentation based on new information or otherwise.

Enterprise-grade experience The future with 5G Enterprise-grade experience Extremely low latency Increased reliability Enhanced security Ultra-fast mobility Re-engineered radio network Faster uplink and downlink speeds On-premise wireless Better coverage, capacity, mobility Multi-Access Edge Compute (MEC) 3

Target 5G Capabilities Ultra low latency Ultra reliability Massive IoT connectivity Ultra high-speeds <10ms Round-trip time latency expected Support mission critical latency sensitive apps Support billions of connected devices Faster speeds possible with mmWave RTT = Round Trip Time Numbers represent the long-term requirements for 5G and may take years to realize mmWave = millimeter wave

AT&T 5G Transformation: From edge to edge Autonomous car Sensors / tracking MR (Mixed Reality) High definition cameras Smarter devices Multi-gigabit speeds Ultra-low latency Higher reliability Massive densification Wi-Fi convergence Expanded radio access Edge computing Lower latency Reduced cloud Op-Ex Service chaining Innovation driver Transport Flexible schemes Self-backhauling Reimagined core Control/user plane separation Native NFV Network slicing Higher reliability Scalability

AT&T has invested to better secure 5G networks from device to application IMSI encryption. Enhanced trust model between device, network, and IoT service Encryption Security Edge Protection Proxy to better protect operator roaming boundaries Roaming Threat Intelligence AlienVault unified security platform: threat detection, incident response, and compliance management Authentication Improved home network authentication. Seamless authentication across access technologies (Wi-Fi, Cellular) Transport Continued fiber build for highly secure connectivity over AT&T VPN and NetBond® GPP = Gigabytes per second Security is key concern Source: “5G Policy Primer: Future wireless networks will have unprecedented security”. The Policy Forum at AT&T. https://policyforum.att.com/wp-content/uploads/2018/11/5G_Primer_Security.pdf

from network to application AT&T 5G IoT strategy: from network to application Connectivity Devices Endpoint management Platform Consulting, Management 5G E 5G, 5G+ LPWAN Localized cellular Network Edge Cloud Chipset to 5G certified device All industry verticals Price leadership AT&T Control Center Multi-Network Connect FOTA/SOTA DataFlow IoT Smart Analytics Intelligent Transportation System (ITS) IoT Security IoT network design Device certification Managed services © 2018 AT&T Intellectual Property. All rights reserved. AT&T, Globe logo, Mobilizing Your World and DIRECTV are registered trademarks and service marks of AT&T Intellectual Property. And/or AT&T affiliated companies. All other marks are the property of their respective owners.

AT&T 5G is mmWave first, followed by sub-6 First standards-based mobile 5G network in U.S. 2018: mmWave1 in parts of 12 cities and continued growth in 2019 First device in 2018: Netgear Nighthawk 5G Mobile Hotspot. Planned launch 1H19: Samsung smartphone for mmWave. Future sub-6 ghz model Sub-6 ghz spectrum deployment 5G planned. Initial 5G, 5G+ will integrate with 4G RAN/Core LTE-M Mexico references are based on:  https://about.att.com/story/mexico_lte_m_network.html Continuous investment in 4G LTE 5G Evolution in nearly 400 markets by EOY 2018 Process for adding 10,000+ FirstNet sites underway LTE License assisted access in 24 cities U.S. & Mexico LTE-M today, NB-IoT in early 20192 1. mmWave = millimeter wave 2. U.S. only. Mexico planned by EOY 2019

AT&T 5G Outlook 2018 2019 and beyond 3GPP Timeline Friendly User Trial Release 15 Release 16 L1/2 Acceleration Phase 1 Phase 2 Release 14 3GPP Timeline Friendly User Trial Spectrum: 28GHz Phase 1a Phase 1b Pilots Spectrum: 28GHz and 39GHz 28GHz Early Commercial Launch Architecture: Non-standalone Spectrum: 39GHz 39GHz Large Scale Commercial Launch Architecture: Non-standalone to begin Spectrum: 39GHz, sub 6GHz 39GHz Sub-6 GHz Initial Commercial Standards Based Launch

These environments have 5G RAN, dedicated packet core, and MEC AT&T 5G leadership through buildout AT&T is a founding sponsor of the American Center for Mobility in Michigan. We are building out a private network to support our 5G capability testing AT&T is working with vendors on use cases that are designed to demonstrate Multi-Access Edge compute (MEC). We expect to further these once our 5G environments are available AT&T Foundry, Labs, Innovation Centers, Drive Studio are incubators for 5G proofs of concept These environments have 5G RAN, dedicated packet core, and MEC

6 Performance Dimensions 5G Future Use cases in 6 clusters 6 Performance Dimensions High data rate Low latency Ultra reliable Connected Density Battery life Mobility Connected transport Enhanced media Mixed reality Sensors/tracking Remote operations Automation/robotics

AT&T and the edge

5G New radio + edge computing = ultra low latency 4G Latency: Customer eNodeB CO NTC Cloud Application RAN latency Network and cloud latency Mobility Computer Capacity 5G Latency: Use Case Compute Capacity Customer gNodeB CO w/NC Greatly reduced RAN latency Ultra-low Edge network latency

Uniquely advantaged to lead in Edge Cloud Infrastructure portfolio differentiates AT&T Edge nodes enable lower latency applications Future: Network Edge nodes Today: Network core, AT&T cloud

Localized cellular network Mission critical applications on a purpose built network Dedicated cellular network Edge Data Breakout AT&T LTE and 5G zones Ultra low latency INDUSTRIAL/MFG. LOGISTICS PUBLIC VENUES Cellular data stays on prem or at secure AT&T network edge cloud Ultra low latency UTILITIES HEALTHCARE NATURAL RESOURCE Predictive Maintenance sensors Robot, Co-bot proliferation Industry 4.0 Applications Worker safety Surveillance Maintenance Optimization AR for training, troubleshooting Video for security, safety, compliance Diagnostics Asset Management Analytics and compute at Edge to reduce latency, device cost

Future AT&T Use cases

Video Surveillance Enterprises, Cities, Retail Customer Objectives Use HD video streams for near real-time analytics Need reliable uplink bandwidth and reduced backhaul cost Drive cost out of the business without compromising security, compliance, and operations tracking needs AT&T solution – Enhanced video – Uplink bandwidth, edge processing allows for: HD uplink video streams captured over high bandwidth 5G air interface and processed at the RAN or network edge City planning, event detection/root cause analysis, surveillance Retail floor-planning, people counting Enterprise anomaly detection, greater security, safety compliance Customer Value Scalable video surveillance with potential to reduce installation and operation costs

Drones Industrial, Public Safety, Insurance Customer Objective Enable highly secure, reliable, high-quality data transfer from drones for remote operation, increased security, compliance, and safety workflows. AT&T Solution – Enhanced Video – Uplink bandwidth 5G RAN technology helps to provide stable, reliable, high- bandwidth uplink communication for drone workflows Cell tower, oil rig, and pipeline inspections Public Safety applications and missions Edge processing manages latency and backhaul cost Customer Value Reliable, high bandwidth uplink and downlink communication over licensed spectrum Beyond line-of-sight applications* * Where and when regulatory guidelines allow

V2X Transportation Customer Objective Enable vehicles to share and ingest just-in-time, context relevant data to navigate the environment more safely and optimally Trend toward vehicle autonomy AT&T solution – Connected vehicle Vehicle communication to road-side units (RSU’s), RSU to network edge Use ultimate 5G networks and network edge processing to provide ultra-reliable, low latency V2X communication Customer Value Increased safety: Intersection and around corner awareness Efficiently delivered content: HD mapping, infotainment Eventual vehicle autonomy

AT&T Case studies Manufacturing, retail, entertainment

Waco, TX AT&T 5G fixed wireless proof of concept in Waco, TX. 5G powered Wi-Fi used by staff and 5000 daily visitors. Fixed wireless speeds of 1.2Gbps in a 400 Mhz channel. RAN Latency of 9 – 12ms. 21

Manufacturing America’s first manufacturing- focused 5G Innovation Zone in Austin, TX. Testbed for emerging Smart Factory 5G use cases: Location, IoT, 4K video, XR, automation. Blueprint for enterprise 5G networks and use case enablement for Industry 4.0. 22

Entertainment Concept focused on proving 5G technology can deliver greater flexibility and mobility for LIVE broadcasting. 4K HDR video from 7th hole streamed over 5G to network broadcast command center, broadcast over DirecTV. Heavy uplink bandwidth use case ~60 mbps. 23

AT&T Retail Ultra-fast point of sale Robust platform for video-centric environment, enhanced content distribution and AR/VR Significant reduction in hardware costs with Multi-Access Edge Computing (MEC) 24

Operator re-farming bands – LTE/NR Spectrum Sharing may be needed 5G New Radio Spectrum – Global Carrier Plan* mmWave Band 20 GHz 30 GHz 40 GHz 50 GHz 60 GHz 70 GHz 80 GHz 90 GHz 28 GHz Band n257 39 GHz Band n260 64-71 GHz Unlicensed Sub 6-Ghz Bands 500 MHz 1 GHz 1.5 GHz 2 GHz 2.5 GHz 3 GHz 3.5 GHz 6 GHz Operator re-farming bands – LTE/NR Spectrum Sharing may be needed Global 3.5GHz Band Asia, Europe. US: CBRS Source: 3GPP R4-1711048 Updated band combination lists * Most Global Carriers