Xfinity is available in Mountainside. Call 833‑848‑2575 • Sponsored Xfinity is available in Mountainside. Check plans and availability ↗ or call 833‑848‑2575 • Sponsored
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Mountainside has 8 internet options – View all▼
Mountainside has one fiber provider, Verizon, and one cable provider, Xfinity. Symmetric speeds of 2,300 Mbps are available in parts of Mountainside.
| Provider | DownDownload (Mbps) | UpUpload (Mbps) | AvailabilityCoverage |
|---|---|---|---|
| Verizon | 2,300 | 2,300 | 99% |
| Provider | DownDownload (Mbps) | UpUpload (Mbps) | AvailabilityCoverage |
|---|---|---|---|
| Xfinity | 2,000 | 250 | 100% |
| Provider | DownDownload (Mbps) | UpUpload (Mbps) | AvailabilityCoverage |
|---|---|---|---|
| Verizon | 300 | 20 | 99% |
| AT&T | 100 | 20 | 99% |
| T-Mobile | 100 | 20 | 99% |
| Provider | DownDownload (Mbps) | UpUpload (Mbps) | AvailabilityCoverage |
|---|---|---|---|
| Starlink | 280 | 30 | 100% |
| Provider | DownDownload (Mbps) | UpUpload (Mbps) | AvailabilityCoverage |
|---|---|---|---|
| HughesNet | 100 | 5 | 100% |
| Viasat | 50 | 3 | 100% |
Broadband Map's availability estimates are based on the census boundaries of Mountainside. Speed metrics capture internet providers' maximum advertised speeds. Both may be overoptimistic.
Broadband Map's listings of internet providers in Mountainside rely primarily on the May 2026 release from the FCC's Broadband Data Collection program (representing Mountainside ISPs' availability as of December 2025).