California mobile and residential proxies — every major metro

California is five markets, not one

California's 39.4 million people live across five distinct media markets: Los Angeles (DMA #2), San Francisco–Oakland–San Jose (#10), Sacramento– Stockton–Modesto (#20), San Diego (#30), and Fresno–Visalia (#55). Each one fingerprints differently. An IP that resolves to Sacramento looks nothing like one that resolves to San Jose to the ad-tech stacks we see weighting geo signals — same state, different buyers, different creative rotation, different price tiers.

That's why the California pool on Proxaro is broken out per metro, not rolled up to the state flag. You ask for Los Angeles, you get LA DMA traffic. You ask for the Bay Area, you get exits on carriers peering at 1 Wilshire or the Equinix SV-series — not a VPN terminator in Oregon.

Carrier footprint inside California

California is the most competitive mobile market in the country. All three majors run dense coverage:

• T-Mobile, AS21928 — strongest in the LA basin, Bay Area, and San Diego after the Sprint merger integration completed in 2023. The standalone 5G rollout started in the big three metros and has now reached the Inland Empire.
• Verizon Wireless, AS22394 — tightest coverage in the Bay Area and the high-density SoCal corridor. Their Ultra Wideband is strong around downtown LA and central SF.
• AT&T Mobility, AS20057 — historically strong on the 101 corridor from SF through San Luis Obispo down to LA, plus depth in San Diego.

Residential coverage is split by region: Spectrum dominates outside the SF/LA metros, AT&T Internet covers the corridor, Comcast is the Bay Area default, and Frontier picks up the rural California footprint that AT&T sold off.

Where California work actually happens

SF Bay Area. Tech-product data (App Store ranks, Play Store listings, in-app ad placements) routes cleaner from a Bay Area mobile exit because the network classifiers know that's where developers live.

LA metro. Media, entertainment, retail, and the biggest DTC ad market outside NYC. Brand-safety verification and YouTube pre-roll placement checks want Comcast LA or Spectrum LA residential, not 4G.

San Diego. Military, biotech, and a disproportionate share of Shopify merchant traffic. Residential on Cox (the default carrier down there) is the right pick.

Sacramento + Central Valley. Agriculture and regional retail. Useful for price-comparison work on SKU categories that vary by market.

CCPA notes for California-targeted captures

If your workflow captures pages containing PII (names, addresses, phone numbers, email addresses) from CA-resident users or CA-hosted endpoints, the California Consumer Privacy Act applies. Proxaro doesn't inspect request payloads, but our AUP requires customers to hold a lawful basis and honor opt-out requests where the law grants them. If you're automating something that touches CCPA-covered data, loop us in before a scale test — we'll sign the DPA you need.

Pool depth and pricing

California has the deepest pool on Proxaro's US network. Start with the Coast plan for 30 GB residential + 5 GB mobile across the state, or step up to Carrier if you need the full 4G/5G mix with T-Mobile / Verizon / AT&T pinning. State-level targeting is available on all paid tiers; DMA-level targeting starts on Coast; ASN pinning at the carrier level starts on Carrier.

Neighboring state in rotation: Arizona. For nationwide work, start from the US country page or jump directly into 4G mobile or residential.