# San Francisco residential proxies by ISP: Comcast and AT&T

> San Francisco residential proxies by ISP: target Comcast, AT&T or Sonic by ASN, city and ZIP, with FCC coverage data. No KYC, pay in crypto.

- URL: https://broadbandproxies.com/cities/san-francisco/
- Last updated: 2026-10-18
- Publisher: Broadband Proxies (https://broadbandproxies.com)

Home-internet providers, technologies and targeting syntax for San Francisco, California, from FCC and Census data.

**Quick answer — Can I buy San Francisco residential proxies by ISP?**

**Broadband Proxies** sells San Francisco residential proxies you can target by internet provider. The FCC map lists Comcast at 97.7% of San Francisco's homes, AT&T at 97.3% and Sonic at 31.8% (December 2025 data). Add `-city-san_francisco-asn-7922` for Comcast. From $2.63 for 1 GB (October 2026); no KYC, crypto only.

## San Francisco: local data

| Attribute | Value |
| --- | --- |
| City | San Francisco, California |
| County | City and County of San Francisco (consolidated) |
| Population | 826,079 (Census Bureau estimate for July 1, 2025; -6.0% since 2020), 17th largest US city |
| Metro area | San Francisco-Oakland-Fremont, CA: 4.63 million people in 2025, 13th largest US metro area |
| Time zone | Pacific Time (America/Los_Angeles) |
| Area codes | 415, 628 |
| ZIP code examples | 94110 (Mission District) · 94133 (North Beach) |
| Main home-internet providers | Comcast, AT&T, Sonic |
| Fiber available to | 44% of residential units (34th of 45 cities) |
| Cable available to | 97.4% of residential units |
| 1 Gbps terrestrial service | 73.6% of residential units |
| Residential units on the FCC map | 463,554 |
| State privacy law | California Consumer Privacy Act, as amended by the CPRA (CPRA amendments in effect since January 1, 2023) |
| Sales tax | 8.625% combined state and local rate (since 2026-10-01) |
| Targeting | `USERNAME-country-us-state-ca-city-san_francisco` plus `-asn-…` for an ISP |
| Availability | City availability varies; the checkout shows what is online |
| Price | $2.63 for 1 GB, $0.50/GB on the 1 TB plan, ASN and city included |

## Which internet providers serve San Francisco homes?

The FCC National Broadband Map lists 7 wired or fixed wireless providers among the ten widest in San Francisco (satellite left out). Comcast reports service to 97.7% of the city's 463,554 residential units, AT&T to 97.3% and Sonic to 31.8%. T-Mobile Home Internet (72.5%) and Verizon 5G Home (67.3%) are mostly 5G fixed wireless home internet, whose IPs share the carrier's mobile network.

*FCC National Broadband Map, Area Summary for San Francisco, CA, data as of December 31, 2025 (satellite providers left out)*

| Provider (FCC filing name) | Brand and ISP page | Residential units covered | ASN to target |
| --- | --- | --- | --- |
| Comcast Corporation | [Comcast Xfinity](https://broadbandproxies.com/isps/comcast-xfinity/) | 97.7% | `asn-7922` |
| AT&T Inc. | [AT&T (Fiber, Internet Air, DSL)](https://broadbandproxies.com/isps/att-fiber/) | 97.3% | `asn-7018` |
| Unwired Ltd. | Unwired Ltd. | 93.8% | Not documented here |
| Etheric Communications, LLC. | Etheric Communications | 77.2% | Not documented here |
| T-Mobile USA, Inc. | [T-Mobile Home Internet](https://broadbandproxies.com/isps/t-mobile-home-internet/) | 72.5% | `asn-21928` |
| Verizon Communications Inc. | [Verizon (mostly 5G Home)](https://broadbandproxies.com/isps/verizon-5g-home/) | 67.3% | `asn-22394` |
| Sonic Telecom, LLC | [Sonic](https://broadbandproxies.com/isps/sonic/) | 31.8% | `asn-46375` |

Units can be served by several providers, so the shares add up to more than 100%. The FCC lists holding companies as filed for December 31, 2025, before later mergers.

## How much of San Francisco has fiber, cable and gigabit service?

Fiber reaches 44% of San Francisco's residential units, 34th of the 45 cities we track and below the 62.2% median. Cable is almost everywhere (97.4%), so a cable IP is the most common home connection type. Copper DSL is still reported at 78.4% of units, 2nd highest of our cities, so some telco IPs here sit on older lines. Gigabit service (1,000/100 Mbps) is available to 73.6% of units. Access type matters for testing: fiber and cable homes usually get their own public IPv4 address, while fixed wireless users often share one.

*FCC National Broadband Map, December 31, 2025 data; any provider, residential units*

| Access type in San Francisco | Residential units covered | Rank among the 45 cities |
| --- | --- | --- |
| Fiber to the home | 44% | 34th |
| Cable (DOCSIS) | 97.4% | 15th |
| Copper DSL | 78.4% | 2nd |
| Fixed wireless (licensed and unlicensed) | 99.9% | 2nd |
| Any terrestrial service at 100/20 Mbps or more | 100% | 1st |
| Any terrestrial service at 1,000/100 Mbps or more | 73.6% | 31st |
| Fiber at 1,000/100 Mbps or more | 43.8% | 28th |

## How do I target a San Francisco ISP in my proxy username?

Start from the city: `USERNAME-country-us-state-ca-city-san_francisco` asks for any home IP in San Francisco. Then add the ASN of the provider you need:

- `USERNAME-country-us-state-ca-city-san_francisco-asn-7922`: Comcast in San Francisco.
- `USERNAME-country-us-state-ca-city-san_francisco-asn-7018`: AT&T in San Francisco.
- `USERNAME-country-us-state-ca-city-san_francisco-asn-46375`: Sonic in San Francisco.
- `USERNAME-country-us-zip-94110-asn-7922`: Comcast in ZIP 94110 (Mission District).
- `USERNAME-country-us-state-ca-city-san_francisco-asn-7018-session-sanfra1-ttl-20`: one AT&T IP kept for up to 20 minutes.

Use `gw.broadbandproxies.com`, port 7777 for HTTP and HTTPS or 7778 for SOCKS5. If a request finds no IP online, drop the ZIP first, then the city, and keep the ASN.

## San Francisco: wireless ISPs and independent fiber

Comcast (97.7%) and AT&T (97.3%) report service to almost every residential unit, but the FCC's top ten also holds fixed wireless providers Unwired (93.8%) and Etheric (77.2%), and Sonic's fiber (31.8%), its highest share in our list. Copper DSL is still reported at 78.4% of units. San Francisco's population fell 6.0% between 2020 and 2025, the second-largest drop among our cities.

Local program: Fiber to Housing: Dept. of Technology program using the city's municipal fiber to give free internet to affordable/public housing (24,000+ homes since 2018).

## Which CA rules matter for checks from San Francisco?

California has a comprehensive privacy law, the California Consumer Privacy Act, as amended by the CPRA (CPRA amendments in effect since January 1, 2023). It governs how businesses treat residents' data; it is not a rule about proxies, and it does not make a check from a San Francisco IP lawful or unlawful. Prices shown to San Francisco shoppers may add sales tax at checkout: the combined state and local rate is 8.625% since 2026-10-01, so compare pre-tax prices when you check retail pages from a San Francisco IP. San Francisco is on Pacific Time: schedule checks of time-limited offers and local ads in that zone. Whatever the city, our [acceptable use policy](https://broadbandproxies.com/acceptable-use/) applies; blocked targets: Banking, government and payment-portal sites, plus SMTP (email-sending) ports 25, 465 and 587.

## San Francisco residential proxy pricing

City and ASN targeting cost nothing extra. Prepaid traffic never expires. See [all plans](https://broadbandproxies.com/pricing/).

| Plan | Quantity | Price | Price per unit |
| --- | --- | --- | --- |
| Test | 1 GB | $2.63 | $2.63/GB |
| Team | 10 GB | $5.94 | $0.59/GB |
| Business | 100 GB | $50 | $0.50/GB |

In every plan: Protocols: HTTP, HTTPS, SOCKS5 · Targeting: ASN (ISP), state, city and ZIP in the US; country elsewhere; city availability varies · Sessions: Rotating or sticky (up to 30 minutes) · Authentication: Username and password, or an IP allowlist (up to 10 IPs) · Traffic expiry: Never expires

Prices in US dollars, paid in BTC, USDT, USDC, ETH, SOL, LTC. Fund your balance (at least $25, or the price of the plan you want), then buy from it; Unused balance stays on your account and never expires. When a purchase costs less than the minimum top-up, the part added only to reach the minimum is refundable on request to support within 30 days of the payment, in USDT or USDC, as long as it has not been spent. The rest of the balance is not paid back, except where the law requires it. No identity documents are asked for.

## San Francisco residential proxies by ISP: FAQ

### Which ISPs can I target in San Francisco?

Any of the providers in the table, by ASN. The widest wired networks in San Francisco on the FCC map are Comcast (`asn-7922`, 97.7%), AT&T (`asn-7018`, 97.3%), Sonic (`asn-46375`, 31.8%). T-Mobile Home Internet and Verizon 5G Home also appear, mainly as 5G home internet.

### How much do San Francisco residential proxies cost?

$2.63 for 1 GB, $5.94 for 10 GB and $50 for 100 GB, as of October 2026. City, ZIP and ASN targeting for San Francisco cost nothing extra, and prepaid traffic never expires. Pay in crypto from a $25 top-up; no KYC.

### Is San Francisco a fiber city?

Not yet. The FCC map shows fiber available to 44% of San Francisco's residential units (December 31, 2025), 34th of our 45 cities, against 97.4% for cable. Fiber at 1,000/100 Mbps or more reaches 43.8%.

### Can I target a San Francisco ZIP code?

Yes. ZIP targeting works in the United States on every plan: `USERNAME-country-us-zip-94110` asks for Mission District, and `zip-94133` for North Beach. You can add an ASN, but a ZIP-plus-ISP request matches fewer homes, so test it before scaling.

## Other California cities and more of the West

- [Los Angeles, CA](https://broadbandproxies.com/cities/los-angeles/) — Spectrum, AT&T
- [Riverside, CA](https://broadbandproxies.com/cities/riverside/) — Spectrum, AT&T
- [San Diego, CA](https://broadbandproxies.com/cities/san-diego/) — AT&T, Cox
- [Sacramento, CA](https://broadbandproxies.com/cities/sacramento/) — Comcast, AT&T
- [San Jose, CA](https://broadbandproxies.com/cities/san-jose/) — Comcast, AT&T
- [Phoenix, AZ](https://broadbandproxies.com/cities/phoenix/) — Cox, CenturyLink

## Sources

1. [FCC National Broadband Map, Area Summary: San Francisco, CA (data as of December 31, 2025)](https://broadbandmap.fcc.gov/area-summary/fixed?version=dec2025&geoid=0667000&type=place) — Federal Communications Commission (2026-10-18)
2. [City and town population totals: Vintage 2025 (sub-est2025)](https://www2.census.gov/programs-surveys/popest/datasets/2020-2025/cities/totals/sub-est2025.csv) — U.S. Census Bureau (2026-10-18)
3. [Metropolitan statistical area population totals: Vintage 2025](https://www2.census.gov/programs-surveys/popest/datasets/2020-2025/metro/totals/cbsa-est2025-alldata.csv) — U.S. Census Bureau (2026-10-18)
4. [County: zipdatamaps.com](https://www.zipdatamaps.com/94110) — zipdatamaps.com (2026-10-18)
5. [Time zone: data.iana.org](https://data.iana.org/time-zones/tzdb/zone1970.tab) — data.iana.org (2026-10-18)
6. [Area codes: nanpa.com](https://nanpa.com/npa-relief/planning-letters?page=1) — nanpa.com (2026-10-18)
7. [Area codes: zip-codes.com](https://www.zip-codes.com/zip-code/94110/zip-code-94110.asp) — zip-codes.com (2026-10-18)
8. [ZIP codes: pe.usps.com](https://pe.usps.com/archive/html/dmmarchive20110102/L002.htm) — pe.usps.com (2026-10-18)
9. [ZIP codes: zipdatamaps.com](https://www.zipdatamaps.com/94133) — zipdatamaps.com (2026-10-18)
10. [State privacy law: oag.ca.gov](https://oag.ca.gov/privacy/ccpa) — oag.ca.gov (2026-10-18)
11. [Combined sales tax rate: cdtfa.ca.gov](https://www.cdtfa.ca.gov/taxes-and-fees/SalesTaxRates10-1-26.xlsx) — cdtfa.ca.gov (2026-10-18)

**Check San Francisco ISPs with 1 GB** Start with 1 GB to see which San Francisco networks are online when you work. ZIP and ASN filters included; crypto only, no ID. [See plans](https://broadbandproxies.com/pricing/) · [All cities](https://broadbandproxies.com/cities/)

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Broadband Proxies: Broadband Proxies is a US residential proxy provider with ISP (ASN) and city targeting, paid in crypto with no ID upload: pick Comcast, Spectrum, AT&T, Verizon Fios or 30 other US networks, plus state, city and ZIP, billed per GB.