Sonic Review
Sonic's California fiber service — the cheapest gigabit and 10-gig fiber in America. Privacy-first, customer-friendly, geographically limited.
Our Take
Sonic is the most aggressive fiber pricing in America. $50/month for symmetric gigabit, $60/month for 10 gigabit. Both include the gateway, unlimited US/Canada landline calls, and no contract. For comparison: AT&T Fiber 1 Gig is $80, Verizon Fios is $80–$100, Quantum Fiber 1 Gig is $75 with Price for Life. Sonic undercuts every one of them by $20–$30/month, and they offer a 10 Gig tier at a price point ($60) that the national ISPs charge for half the speed.
The pricing is real and not a teaser. It's their actual rate card. They get away with it because they're a regional California ISP that doesn't have the marketing overhead or executive compensation of a Lumen or AT&T. They built their reputation in the dot-com era as the small-but-principled San Francisco ISP and they've kept that posture intact through 30 years and a fiber buildout.
In 28 years of installs, I've never seen pricing this aggressive from a credible fiber ISP. The catch is coverage — Sonic only exists in select California markets (Bay Area, Sacramento, parts of LA). If you're in the footprint, this is the best fiber deal in the United States. Outside the footprint, none of this applies.
The biggest daily frustration — the coverage cliff
Every ISP has one. Sonic's is the coverage map. The pricing is so attractive that everyone wants in, but Sonic's fiber footprint is genuinely small. Most California ZIP codes don't have Sonic. Within ZIPs that do, individual blocks may or may not. The "available at your address" check is unforgiving — fiber lit or not, no in-between.
There's a secondary product (Sonic FlexLink fixed wireless) that extends coverage but isn't fiber-class. If your address only gets FlexLink, the pricing is still competitive but the performance is different. Verify exactly what's available before deciding.
When Sonic is the right call
- Sonic Fiber is lit at your address. Inside the footprint, this is the obvious pick. Best price, best privacy stance, good support.
- You're in California and AT&T Fiber or Spectrum is your alternative. Sonic beats AT&T Fiber by $30/month, beats Spectrum by $40+/month over 5 years.
- You want the cheapest credible 10 Gig fiber in America. Sonic's $60/month 10 Gig is roughly half what other ISPs charge for the same speed.
- You value privacy and California-based support. Sonic is publicly anti-surveillance and has actively fought legal requests for customer data. The support team is California-based and responsive.
- You can self-install. Sonic ships pre-configured hardware. Self-install is the norm and saves you the install fee.
When to consider another ISP
- You're outside Sonic's coverage footprint. Not an option. AT&T Fiber, Quantum, or cable are the alternatives.
- You want pro install handled for you. Pro install is available but not the default. If you need a tech to set things up, AT&T or Spectrum may be smoother.
- You need 10 Gig but your address only gets FlexLink (Sonic's fixed wireless). FlexLink is not 10 Gig. Verify your address gets fiber.
- You need TV service from the same provider. Sonic is internet-only. Pair with YouTube TV, Hulu + Live, or DirecTV Stream.
Key features (and what they actually mean for you)
The technology — fiber-to-the-home + fixed wireless
Sonic Fiber is FTTH — same physical technology as the other major fiber ISPs. In some markets where fiber isn't lit, they offer FlexLink fixed wireless (5G-based) as a secondary product.
🧠 In plain English: When you see "Sonic Fiber" pricing in your area, it's actual fiber. FlexLink is the fallback product for non-fiber markets and is meaningfully different — slower, more weather-dependent.
Speed tiers — two tiers, no upsell games
| Tier | Speed | Monthly |
|---|---|---|
| Fiber 1 Gig | 1 Gbps symmetric | $50 |
| Fiber 10 Gig | 10 Gbps symmetric | $60 |
💡 In plain English: Two tiers. No "Pro" or "Premium" or "Performance" variants. No upgrade upsells. Just pick the speed you want. The $10 jump to 10 Gig is the cheapest multi-gig upgrade in the industry — though most homes can't actually consume 10 Gbps over Wi-Fi.
The gateway — Sonic-branded, functional
Standard Wi-Fi 6 gateway, decent for typical homes. For 10 Gig customers, you'll need Cat6/Cat6a wired connections to actually hit the rated speed.
Install — self-install, sometimes pro available
Self-install is the default and what most customers do. Pro install is available as an add-on. Self-install is genuinely 30–60 minutes for a typical home.
Data — no caps, period
No data cap on either tier. Same as the other major fiber ISPs.
Bundled extras — landline, real
Unlimited US/Canada landline calling is bundled at no extra cost. Use it for emergencies, kids without cell phones, or ignore it.
The gateway — fine for most, bridge if you have mesh
| Feature | Sonic Gateway | AT&T BGW320 | Google Fiber Router |
|---|---|---|---|
| Wi-Fi 6 | ✓ | Wi-Fi 6E | ✓ |
| Bridge mode | ✓ | ✓ | ✓ |
| Mesh capable | No | Optional ($) | ✓ |
| Multi-gig Ethernet | 1× 10 Gbps (10 Gig tier) | 1× 5 Gbps | 1× 2.5 Gbps |
| Coverage area | ~1,500 sq ft | ~1,800 sq ft | ~2,000 sq ft |
| Replacement | Sonic ships one | AT&T ships one | Google ships one |
The 10 Gig tier's gateway has a 10 Gigabit Ethernet port — important if you actually plan to use 10 Gig speeds with a wired client.
Reliability, support, and outages
The fiber network is reliable. Outages are rare and typically upstream.
Support is the standout — Sonic has consistently rated as one of the top US ISPs for customer service. California-based reps, fast call answers, responsive escalation. This is genuinely one of the best ISP support experiences available in the US.
Outages are rare and resolution is fast.
The real monthly cost
| Line item | Fiber 1 Gig | Notes |
|---|---|---|
| Base price | $50/mo | All-in pricing |
| Gateway | Included | |
| Landline (unlimited US/Canada) | Included | |
| Taxes & fees | ~$3–$5/mo | Varies |
| Realistic monthly | ~$53–$55/mo | |
| 5-year cost | ~$3,180 |
💡 The math that actually matters: Sonic Fiber Gig at $53 all-in vs AT&T Fiber Gig at $84 all-in saves $370/year, $1,860 over 5 years. Vs cable, the savings double.
The three real options compared
| Item | Sonic Fiber Gig | AT&T Fiber Gig | Spectrum / Comcast 1 Gig |
|---|---|---|---|
| Download | 1 Gbps | 940 Mbps | 940 Mbps |
| Upload | 1 Gbps | 940 Mbps | 25–35 Mbps |
| Customer service | Top tier | Average | Below average |
| Data cap | None | None | 1.2 TB (some) |
| Bundled landline | ✓ unlimited | No | No (separate plan) |
| Annual contract | None | None | None (most) |
| Realistic monthly | ~$53/mo | ~$84/mo | ~$110/mo (yr 2+) |
| 5-year cost | ~$3,180 | ~$5,040 | ~$7,000 |
Inside Sonic's footprint, Sonic wins. The pricing isn't close.
What's missing
- National footprint. Sonic is California-only. Outside California, this doesn't exist.
- TV bundling. Internet-only. Pair with YouTube TV or another live-TV streaming product.
- Pro install as default. Most customers do self-install. Pro install is an upgrade.
- Brand recognition outside California. Sonic is well-known in the Bay Area but minimal elsewhere.
Who Sonic is best for
The right household: in Sonic's California fiber footprint, comfortable with self-install, values aggressive pricing and strong customer service. For these households, Sonic is genuinely the best fiber deal in the US.
The wrong household: outside California, or in markets where only Sonic FlexLink (not fiber) is available. The FlexLink product is fine but it's not why Sonic gets recommended.
More photos
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Setup tips from a pro installer 8 tips · click to expand
- Verify Sonic Fiber (not Sonic FlexLink or copper) at your address Sonic sells fiber, fixed wireless (FlexLink), and resold copper in different markets. The fiber product is great; the others are situational. Confirm the offer at your address is fiber-specific.
- Self-install is the standard — don't pay for pro install unless you need it Sonic ships the ONT and gateway pre-configured. For typical homes, self-install takes 30–60 minutes. Pro install is available but adds ~$100 — skip it if you're comfortable plugging things in.
- Bring your own router if you have a mesh system The included gateway/router combo is functional but mediocre. Bridge it and run your own mesh for serious Wi-Fi.
- The bundled landline is real — set it up if you want it Unlimited US/Canada calling is included. Some customers use it for emergencies, others ignore it. The bundle doesn't cost extra and it's there if you want it.
- Take the privacy stance seriously Sonic is publicly committed to not selling customer data and has actively fought subpoenas to protect customer privacy. If that matters to you, this is among the most pro-privacy ISPs in the US.
- Use a wired connection for 10 Gig speeds The 10 Gig tier requires Cat6 or Cat6a cabling and a 10 Gigabit Ethernet network adapter. Wi-Fi caps out below 10 Gbps regardless of router. Plan accordingly if you actually want to use the 10 Gig tier.
- Coverage is the question — verify before getting excited Sonic's coverage is limited and specific. Major Bay Area cities, Sacramento, parts of LA. Run your specific address through the Sonic checker before falling in love with the price.
- Use Sonic's support actively if needed Customer service is responsive and California-based. Don't be afraid to call — the support experience is meaningfully better than the national ISPs.