Purpose

This research identifies available business internet service providers in Glendora, California, their pricing structures, speeds, and key features to help businesses select the most cost-effective option for their needs.

⚠️ Actual Availability at 1102 E Route 66, Glendora, CA 91740

Verified availability (December 2025):

ProviderTechnology AvailableStatus
Spectrum BusinessCable/Fiber-PoweredAVAILABLE (Primary option)
Frontier BusinessDSL only❌ Fiber NOT available at this address
AT&T BusinessInternet Air (Wireless) only⚠️ No fiber available at this address
EarthLinkUnknownNot verified

Bottom line: Spectrum Business is the only viable option for reliable business internet at this address. Frontier and AT&T fiber are not available.

Key Findings

  • 15 business ISP providers serve Glendora, CA with fiber, cable, DSL, and wireless options
  • Fiber availability: 67% of Glendora has access to fiber internet
  • At 1102 E Route 66: Only Spectrum Business cable/fiber-powered is available for reliable service
  • Upload speeds critical: Spectrum’s asymmetric speeds (10-35 Mbps upload) are a key limitation
  • Major providers: Spectrum Business (available), Frontier Business (DSL only), AT&T Internet Air (wireless)

Provider Comparison

Spectrum Business ⭐ Only Reliable Option at 1102 E Route 66

Coverage: 100% of Glendora, VERIFIED AVAILABLE at 1102 E Route 66 Technology: Cable/Fiber-Powered (HFC - Hybrid Fiber Coaxial) Contract: Month-to-month, no contracts

Speed TierDownloadUploadPriceBest For
300 Mbps300 Mbps10 Mbps~$65/moLight usage, budget option
500 Mbps500 Mbps10 Mbps$65/mo⚠️ Upload too slow for dev work
600 Mbps (Ultra)600 Mbps35 Mbps~$95/moBetter upload, good value
1 Gbps (Gig)1,000 Mbps35 Mbps90/mo (3yr)RECOMMENDED for software engineers

Critical Upload Speed Information:

  • 10 Mbps upload (on 300/500 plans): Too slow for frequent video calls + development work
  • 35 Mbps upload (on 600/1000 plans): Adequate for HD video calls + screen sharing + git/docker uploads

Key Features:

  • Unlimited data included
  • No contracts or hidden fees
  • Free modem included
  • Wi-Fi router: +$10/mo (or use your own)
  • No early termination penalties
  • 30-day money-back guarantee for new customers
  • $5/mo payment processing charge (waived with Auto Pay)

Total Monthly Cost Examples:

  • 500 Mbps + router + Auto Pay: $70/mo
  • 1 Gbps (3yr) + router + Auto Pay: $95/mo

Best for: Software engineers and businesses with frequent video calls should get 1 Gbps plan for 35 Mbps upload


Frontier Business Fiber ❌ NOT AVAILABLE at 1102 E Route 66

Coverage: 67% of Glendora (fiber available in some areas) At 1102 E Route 66: ❌ Only DSL available (not suitable for business use) Technology: 100% fiber-optic (symmetrical speeds) - where available Contract: 36 months pricing, month-to-month (no term commitment)

SpeedPriceActual Speed RangeBest For
500 Mbps$89.99/mo450-500 Mbps symmetricalBasic business operations
1 Gig$114.99/mo846-1,000 Mbps down, 792-1,000 Mbps upE-commerce, livestreams, multi-device uploads
2 Gig$149.99/mo1,800-2,000 Mbps symmetricalMultiple devices using bandwidth simultaneously
5 Gig$199.99/mo4,500-5,000 Mbps symmetricalCloud collaboration, webinars, multiple video streams

Key Features (where fiber is available):

  • 99.9% overall network reliability
  • 100% fiber-optic network
  • Unlimited data (no data caps or overage charges)
  • Free Wi-Fi 7 router included (up to $599 value)
  • Free installation (promotional)
  • 2-year price lock
  • Month-to-month flexibility (no contract required)
  • Symmetrical upload/download speeds on all tiers

Additional Fees:

  • Auto Pay required (or $5/mo fee applies)
  • Installation: Up to $95 (often waived with promotions)
  • Equipment return fee: Up to $400 per device if not returned
  • Equipment restocking fee: $50 if internet disconnected

Note: While Frontier fiber would be ideal with symmetrical speeds, it is not available at 1102 E Route 66. Only DSL service is offered at this address, which is too slow for business use.

Contact: 1-855-642-4943 for location-specific pricing


AT&T Business Fiber ❌ NOT AVAILABLE at 1102 E Route 66

Coverage: Limited in Glendora area At 1102 E Route 66: ❌ Fiber NOT available - Only AT&T Internet Air (wireless) Technology: Fiber-optic (where available) Contract: Contract-free options available

AT&T Business Fiber Plans (not available at this address):

SpeedPriceNotes
300 Mbps$70/moSymmetrical speeds
500 Mbps$110/moSymmetrical speeds
1 Gig$160/moSymmetrical, includes 5G backup
2 Gig$185/moSymmetrical, includes 5G backup
5 Gig$285/moSymmetrical, includes 5G backup

AT&T Internet Air for Business (what’s actually available):

PlanPriceDownload SpeedsUpload SpeedsNotes
Standard$60/mo152-472 Mbps (5G+)
57-337 Mbps (5G)
13-79 Mbps (4G LTE)
5-30 Mbps (5G+)
3-21 Mbps (5G)
1-11 Mbps (4G LTE)
⚠️ Wireless, speeds not guaranteed
Premium$100/moSame as StandardSame as StandardPriority data first 250GB

Why Internet Air is NOT recommended for business:

  • ❌ Wireless technology (unreliable)
  • ❌ Speeds vary based on network congestion
  • ❌ Can slow during busy network times
  • ❌ Not suitable for mission-critical operations
  • ❌ Upload speeds inconsistent (critical for video calls)

Note: While AT&T Business Fiber would be excellent with symmetrical speeds and 5G backup, it is not available at 1102 E Route 66.


Coverage: Available in Glendora Technology: Fiber-optic

SpeedPriceNotes
Up to 5 GbpsStarting $39.95/moConsumer pricing shown

Note: Business-specific pricing not readily available. Contact EarthLink for commercial plan details.


Pricing Comparison Summary

At 1102 E Route 66, Glendora, CA 91740 (Actual Availability)

ProviderAvailable?TechnologyEntry PriceUpload SpeedRecommended?
Spectrum Business✅ YESCable/Fiber$65/mo (500 Mbps)10 Mbps⚠️ Upload too slow
Spectrum Business✅ YESCable/Fiber$90/mo (1 Gbps, 3yr)35 MbpsRECOMMENDED
Frontier Business❌ NODSL onlyN/AN/A❌ Not viable
AT&T Business❌ NO (fiber)Wireless only$60/mo (Air)5-30 Mbps*❌ Unreliable

*Wireless speeds vary and not guaranteed

General Glendora Comparison (Where Fiber is Available)

ProviderEntry PriceDownload at EntryUpload at EntryMax SpeedContract
Spectrum Business$65/mo500 Mbps10 Mbps ⚠️1 Gbps / 35 Mbps upNone
Frontier Business$89.99/mo500 Mbps500 Mbps5 Gbps symmetricalMonth-to-month
AT&T Business Fiber$70/mo300 Mbps300 Mbps5 Gbps symmetricalOptional

Recommendations by Business Type

⚠️ Note: These recommendations assume fiber availability. For 1102 E Route 66, only Spectrum Business is available.

Software Engineers / Developers (Frequent Video Calls)

RECOMMENDED: Spectrum Business 1 Gbps - $90/mo (3-year price lock)

Why 35 Mbps upload is critical for software engineers:

  • HD video calls (3-5 Mbps) + screen sharing (2-3 Mbps) = 6-8 Mbps
  • Git pushes, Docker uploads, npm packages = 2-10 Mbps
  • Background syncing (Slack, cloud IDE, backups) = 1-5 Mbps
  • Total need: 10-20 Mbps sustained, with headroom for spikes

Why NOT 500 Mbps plan (10 Mbps upload):

  • ❌ Video call + screen share + git push = lag/stuttering
  • ❌ No headroom for background tasks
  • ❌ Docker image pushes will slow video calls
  • ❌ CI/CD uploads interfere with meetings

Cost analysis: 300/year) for 3.5x upload speed = worth it for productivity


Single User Business (Light Usage)

Option 1: Spectrum Business 500 Mbps - $65/mo

  • If you: Mostly email, web browsing, occasional calls
  • Upload needs: Small file uploads, light cloud sync
  • Trade-off: Save $25/mo but accept occasional slowdowns

Option 2: Spectrum Business 1 Gbps - $90/mo (recommended)

  • If you: Want no compromises, room to grow
  • Upload needs: Comfortable headroom for any task

Small Businesses (<10 employees) at 1102 E Route 66

ONLY OPTION: Spectrum Business 1 Gbps - $90/mo (3-year)

  • Why: Only 35 Mbps upload tier handles multiple users
  • Reality: 10 Mbps upload divided by 10 users = unusable
  • Alternative: None - fiber not available at this address

For General Glendora Addresses (if fiber available)

Best choice: Frontier Business Fiber 500 Mbps ($89.99/mo)

  • Why: Symmetrical 500 Mbps upload/download
  • Better than: Spectrum 1 Gbps (1000 down / 35 up)
  • Note: NOT available at 1102 E Route 66

Budget-Conscious Solo Users at 1102 E Route 66

Minimum viable: Spectrum Business 500 Mbps - $65/mo

  • Only if: You rarely do video calls
  • Accept: Slow uploads, occasional lag
  • Better choice: Pay $25/mo more for 1 Gbps plan

Understanding Upload Speeds (Critical for Business)

Why upload speed matters more than most people think:

Video Conferencing Upload Requirements

  • Audio only: 1 Mbps
  • SD video (480p): 2-3 Mbps
  • HD video (720p): 3-5 Mbps
  • Full HD (1080p): 5-8 Mbps
  • HD + screen sharing: 6-8 Mbps

Software Development Upload Needs

  • Git push: 1-5 Mbps (depending on commit size)
  • Docker image push: 5-20 Mbps (large images)
  • npm/yarn publish: 1-10 Mbps
  • Cloud IDE sync: 1-3 Mbps continuous
  • File uploads to S3/cloud: Depends on file size

Real-World Scenario: Software Engineer

Simultaneous tasks during a typical work meeting:

  • HD video call with screen share: 6-8 Mbps
  • Slack file sync: 1-2 Mbps
  • VS Code cloud sync: 1 Mbps
  • Background OS updates: 1-2 Mbps
  • Total: 9-13 Mbps needed

With 10 Mbps upload (500 Mbps plan): Constant buffering and lag With 35 Mbps upload (1 Gbps plan): Comfortable headroom


Next Steps for 1102 E Route 66

Immediate Action

  1. Order Spectrum Business 1 Gbps ($90/mo with 3-year price lock)

  2. Equipment decisions:

    • Modem: FREE (included)
    • Router: $10/mo or use your own
    • Total: ~$95-100/mo with router and Auto Pay

Future Consideration

  • Monitor Frontier fiber expansion: Check quarterly if fiber becomes available at 1102 E Route 66
    • If available: Switch to Frontier 500 Mbps ($89.99) for symmetrical 500/500 speeds
    • Better upload (500 vs 35 Mbps) for same price as current Spectrum 1 Gig

General Guidelines

  1. Determine your bandwidth needs: Calculate simultaneous users, cloud usage, video conferencing, and data transfer requirements
  2. Verify availability: Always check with your specific business address
  3. Request quotes: Get written quotes including all fees, installation costs, and promotional pricing terms
  4. Check for promotions: Ask about current business promotions or bundling discounts
  5. Review SLAs: For critical operations, review Service Level Agreements for uptime guarantees and support response times

Contact Information

ProviderPhoneWebsite
Spectrum BusinessCheck spectrum.comGlendora Business Services
Frontier Business1-855-642-4943Glendora SMB Services
AT&T BusinessCheck att.comBusiness Fiber Info
EarthLinkCheck earthlink.comContact for business plans

Research Verification

Address tested: 1102 E Route 66, Glendora, CA 91740 Date verified: December 29, 2025 Method: Direct availability checks via provider websites

Availability findings:

  • Spectrum Business: ✅ Available (verified)
  • Frontier Business Fiber: ❌ Not available (DSL only)
  • AT&T Business Fiber: ❌ Not available (Internet Air wireless only)

Sources

  1. 10 Best Internet Providers in Glendora, CA (for 2025)
  2. Glendora Internet Plans - Compare Provider Options 2025
  3. Glendora, CA Business Internet, Phone & TV Service - Spectrum Business
  4. Top 10 Internet Providers in Glendora, CA
  5. Internet Providers in Glendora, CA | Top 5 options
  6. Glendora, CA Business Internet Providers - 15 Options Available
  7. Top 5 Internet Providers in Glendora, CA | HighSpeedInternet.com
  8. Small Business Internet Service – Glendora, CA | Frontier® SMB
  9. Spectrum Business Internet Plans, Pricing, and Review
  10. AT&T Business Fiber®: High Speed Business Fiber Internet Service
  11. AT&T Business Internet Plans, Pricing, and Review
  12. Frontier Business Internet Plans, Pricing, and Review
  13. Frontier® Fiber Internet Services for Business
  14. Business Fiber Internet - Get a Quote for Business Fiber
  15. Frontier Internet Review | Plans, Prices and Speeds
  16. Spectrum Business Internet Upload Speeds Explained
  17. Business Fixed Wireless Internet | AT&T Internet Air for Business