Internet providers in Waltham, Massachusetts 02451
ZIP code 02451 is in Waltham, Middlesex County, Massachusetts. Compare the major providers below, then check availability for your address.
Internet in Waltham 02451: local snapshot
About 94% of the 7,544 households in 02451 have a broadband subscription, 2 points above the Massachusetts average of 92%. That ranks 02451#223 of 514 ZIP codes in Massachusetts for broadband adoption.
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2023). These figures describe the area, not the providers available at your address.
Compare internet providers in Waltham, Massachusetts
Share of residential locations in Waltham where each provider reports service, from the FCC National Broadband Map (data as of December 31, 2025). Availability depends on your exact address.
| # | Provider | Technology (varies by address) | Locations covered | |
|---|---|---|---|---|
| 1 | Xfinity | Cable | 99%+ | |
| 2 | Astound Broadband | Fiber, Cable | 91% | |
| 3 | Verizon | Fiber, Fixed wireless | 89% | Check availability |
| 4 | AT&T | Fiber, DSL, Fixed wireless | 60% | Check availability |
| 5 | T-Mobile Home Internet | Fixed wireless | 58% |
Satellite internet
| 1 | HughesNet | Satellite | 99%+ | |
| 2 | Viasat | Satellite | 99%+ | |
| 3 | Starlink | Satellite | 99%+ |
Satellite service is available at nearly every address but typically has higher latency than wired options.
Provider-reported coverage does not guarantee service or speeds at a specific address. Some "Check availability" links are affiliate links; we may earn a commission at no cost to you. How we make money.
What technologies are available in Waltham?
Fiber is widely available: about 81% of locations in Waltham can get it. Gigabit-class service (1,000 Mbps down) is reported for about 96% of locations. Fixed wireless home internet is reported for about 70% of locations.
FCC National Broadband Map, data as of December 31, 2025: share of residential locations in Waltham that providers report they can serve. City-level figures, not your address.
What to know about internet in Waltham 02451
Xfinity reports service to the most residential locations in Waltham, about 100%. 5 providers report coverage of at least half of locations (Xfinity, Astound Broadband, Verizon, AT&T, and T-Mobile Home Internet), so the market looks competitive. T-Mobile Home Internet offers fixed wireless home internet, an option if you prefer no cable or fiber installation.
Broadband adoption in 02451 (94%) is close to the Waltham average of 94%. By median household income, 02451 ranks 1 of 3 ZIP codes in Waltham. The median age of residents is 39.
Frequently asked questions
Is fiber internet available in Waltham?
Yes, in part. About 81% of residential locations in Waltham can get fiber, 100% can get cable, and about 96% can get gigabit-class speeds, per FCC data. Availability depends on your exact address.
Which internet provider has the widest coverage in Waltham?
Xfinity reports service to about 100% of residential locations in Waltham, the most of any provider, per FCC data. Availability still depends on your address.
How many internet providers serve Waltham?
5 providers report service to at least 2% of locations in Waltham, and 5 cover at least half. Satellite (HughesNet, Viasat, Starlink) is also available nearly everywhere.
What is the difference between fiber, cable and DSL?
Fiber offers the fastest and most consistent speeds, cable is widely available with high download speeds, and DSL runs over phone lines and is usually slower. See our guide for details.
What internet speed do I need in Waltham 02451?
Most households are well served by 100–300 Mbps. Heavy streaming, gaming or many connected devices may benefit from 500 Mbps or more.
Other ZIP codes in Waltham
Internet providers near Waltham
- Belmont, MA (3 mi)
- Watertown Town, MA (4 mi)
- Lexington, MA (4 mi)
- Newton, MA (4 mi)
- Arlington, MA (4 mi)
- Wellesley, MA (6 mi)
- Cambridge, MA (6 mi)
- Winchester, MA (7 mi)
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