Coverage · ZIP 29420 · Dorchester County
Internet providers in Charleston, SC.
There are 10 internet providers reporting service in Charleston, SC (ZIP 29420) in FCC National Broadband Map filings (FCC filings as of Dec 31, 2024), including Spectrum Fiber, AT&T Fiber, and Home Telecom. The fastest advertised download speed is 5 Gbps from AT&T Fiber. 3 of them offer fiber. These records are aggregated to ZIP areas. Call (888) 889-4095 and your OneClickAway agent confirms which plans are actually orderable at your exact address — with current pricing — before anything is ordered.
Ranked · fiber first, then cable, 5G home, fixed wireless, DSL
Every provider reporting service in Charleston, SC (29420)
Maximum advertised speeds from FCC National Broadband Map filings (FCC filings as of Dec 31, 2024). Coverage is the share of census blocks in this ZIP where the provider reports service. Prices are not shown — they change by address and promotion, so your agent quotes them live.
Providers are grouped by technology. Within a group, OneClickAway partners appear first in our listed partner order. We may receive compensation when you order through us. Block coverage is not the percentage of homes served.
| # | Provider | Technology | Max download | Max upload | Coverage |
|---|---|---|---|---|---|
| 01 | Spectrum FiberOneClickAway partner by Charter |
FiberLow latency | 1 Gbps | 500 Mbps | 5% of blocks |
| 02 | AT&T FiberOneClickAway partner by AT&T |
FiberLow latency | 5 Gbps | 5 Gbps | 35% of blocks |
| 03 | Home Telecom | FiberLow latency | 5 Gbps | 5 Gbps | 2% of blocks |
| 04 | XfinityOneClickAway partner by Comcast |
CableLow latency | 2 Gbps | 250 Mbps | 43% of blocks |
| 05 | SpectrumOneClickAway partner by Charter |
CableLow latency | 1 Gbps | 35 Mbps | 55% of blocks |
| 06 | WOW! by WideOpenWest |
CableLow latency | 1.2 Gbps | 50 Mbps | 67% of blocks |
| 07 | AT&T Internet AirOneClickAway partner by AT&T |
5G HomeLow latency | 100 Mbps | 20 Mbps | 48% of blocks |
| 08 | Verizon 5G HomeOneClickAway partner by Verizon |
5G HomeLow latency | 300 Mbps | 30 Mbps | 44% of blocks |
| 09 | T-Mobile Home Internet by T-Mobile |
5G HomeLow latency | 100 Mbps | 20 Mbps | 77% of blocks |
| 10 | AT&T InternetOneClickAway partner by AT&T |
DSLLow latency | 100 Mbps | 20 Mbps | 55% of blocks |
Satellite service is filed for essentially every U.S. address and is listed separately: Starlink up to 280 Mbps · Viasat up to 150 Mbps · HughesNet up to 100 Mbps.
Common questions
Internet in Charleston, SC, answered from the filings
How many internet providers serve Charleston, SC?
FCC filings list 10 internet providers reporting residential service in ZIP 29420, including Spectrum Fiber, AT&T Fiber, and Home Telecom. This is an aggregated ZIP-area comparison, so not every provider reaches every address — a OneClickAway agent confirms which ones reach yours before you order.
What is the fastest internet in 29420?
AT&T Fiber reports the highest maximum advertised download speed in Charleston, SC at up to 5 Gbps (up to 5 Gbps upload). Actual speeds depend on the plan sold at your address; these are provider-reported maximums, not guarantees.
Is fiber internet available in Charleston, SC?
Spectrum Fiber, AT&T Fiber, and Home Telecom report fiber service in ZIP 29420. Fiber typically offers symmetrical speeds and lower latency; whether it reaches your specific address is confirmed by your agent before ordering.
Which of these providers can OneClickAway order for me?
Spectrum Fiber, AT&T Fiber, Xfinity, and Spectrum are OneClickAway partner brands in this ZIP. Eligible plans and current charges need confirmation. OneClickAway is authorized to sell Xfinity, Frontier, Kinetic by Windstream, Brightspeed, EarthLink, Spectrum, AT&T, Verizon, Optimum, Astound Broadband, DIRECTV, ADT, and Vivint; other brands are listed for comparison and may require ordering directly. Call (888) 889-4095 (Mon–Fri 9–6 PT).
Nearby ZIP codes in Dorchester County
One call, no forms
Confirm what's live at your address in 29420.
Your agent checks partner plans, current pricing, and installation options at your exact address. You decide whether to order. Monday – Friday, 9 AM – 6 PM (PT).