Verizon Business vs AT&T Business — Internet & Connectivity Comparison
Independent side-by-side comparison by Fibi · Updated 2026
Verizon and AT&T are the two largest US carriers and direct competitors across enterprise internet, 5G, MPLS, UCaaS, and security. Both are Tier 1 providers — the right choice comes down to 5G footprint, fiber coverage at your location, and specific SLA requirements.
Side-by-Side Comparison
Best For
Verizon Business
Enterprise needing global reach, 5G private networks, or carrier-grade MPLS
AT&T Business
Multi-location enterprise needing fiber SLAs, 5G, and integrated security
Technology
Verizon Business
Fiber (Fios), Dedicated Internet, 5G (C-Band + mmWave), MPLS, Fixed Wireless
AT&T Business
Fiber (ABF), Dedicated Internet (ADI), Fixed Wireless, 5G
Max Speed
Verizon Business
Up to 10 Gbps+ dedicated; 5G Gbps-class in select mmWave markets
AT&T Business
Up to 10 Gbps dedicated; 5 Gbps fiber broadband
Contract Terms
Verizon Business
12–36 months; government and wholesale up to 60 months
AT&T Business
12–36 months standard; no-contract ABF broadband option
SLA / Uptime
Verizon Business
99.999% for dedicated circuits; global MPLS SLA with end-to-end guarantees
AT&T Business
99.999% for dedicated circuits; formal SLA with credits and jitter/latency guarantees
Coverage Area
Verizon Business
Fios: ~30 states metro; 5G/LTE nationwide; MPLS: 190+ countries
AT&T Business
48 states fiber; 5G/LTE nationwide; MPLS in 195+ countries
SD-WAN Available
Verizon Business
Yes — Verizon Software Defined WAN with managed options
AT&T Business
Yes — AT&T SD-WAN and SASE (managed and co-managed options)
UCaaS Available
Verizon Business
Yes — Verizon One Talk + Microsoft Teams Calling
AT&T Business
Yes — AT&T Office@Hand powered by RingCentral
Bundled Services
Verizon Business
Internet + 5G + MPLS + UCaaS + cybersecurity + SD-WAN
AT&T Business
Fiber internet + 5G mobility + SD-WAN + UCaaS + Dynamic Defense cybersecurity
Pricing
Verizon Business
Contact for pricing
AT&T Business
Contact for pricing
Key Strengths & Weaknesses
Strengths
- Industry-leading 5G network (C-Band + mmWave) for private networks
- Global MPLS and IP transit in 190+ countries
- Microsoft Teams Calling native integration
- Verizon Security Services (Zero Trust, EDR, SASE)
- Edge compute and private 5G for manufacturing/warehousing
Limitations
- Fios fiber footprint limited to Northeast and select markets
- Premium pricing across all product tiers
- Complex enterprise procurement process for SMB buyers
Strengths
- America's #1 Business Fiber (9 consecutive years)
- AT&T Dynamic Defense — network-embedded cybersecurity (96% block rate)
- 5G + fiber convergence with automatic 5G backup
- SD-WAN and SASE portfolio (VeloCloud, Fortinet options)
- Full UCaaS via AT&T Office@Hand (RingCentral-powered)
Limitations
- Premium pricing vs. cable and fixed-wireless alternatives
- Longer enterprise contract terms typical
- Fiber installation lead times vary by market
Which Is Right for You?
Use this guide to identify the better fit for your specific situation.
Choose Verizon Business if:
- ›You need the industry-leading 5G network (C-Band + mmWave)
- ›Global MPLS in 190+ countries is required
- ›Microsoft Teams Calling native integration is preferred
- ›Private 5G for manufacturing, warehousing, or campus is in scope
- ›Your key locations are in Verizon's Fios fiber footprint (Northeast)
Choose AT&T Business if:
- ›AT&T Business Fiber is available at your locations (702K+ buildings)
- ›Dynamic Defense built-in cybersecurity is a priority
- ›You want 5G backup automatically included with ABF broadband
- ›AT&T MPLS in 195+ countries is sufficient for your global footprint
- ›AT&T Office@Hand UCaaS (RingCentral-powered) is your preferred voice platform
Not a Good Fit If…
Verizon Business may not be ideal if:
- Businesses in markets without Fios fiber who need dedicated SLAs
- Cost-sensitive SMB not needing global or 5G advanced features
AT&T Business may not be ideal if:
- Organizations needing 5G mmWave for indoor wireless coverage
- Businesses with heavy Fios/Northeast fiber dependency
Not sure which is right for you?
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Fibi is an independent technology advisor — we earn from carriers, never from you.