California Mobile Proxies on Your Own SIM, Rented by the Month

California is the second state most customers ask about, and for the same reason as New York: the West Coast is where a large share of US social, entertainment and technology activity is measured. A SimProxies California plan is one AT&T, T-Mobile or Verizon SIM in one modem in our Los Angeles rack, rented to one customer for the term chosen. The address is a real carrier address that geolocates to Los Angeles or to California, data is unlimited, and the SIM stays put for the whole month. This page covers what the address looks like from outside, why Los Angeles is our California point of presence, and the work people bring to it.

What a California SIM looks like from outside

An IP lookup on one of our Los Angeles addresses shows a US mobile carrier as the owner, cellular as the connection type, and Los Angeles or California as the location. That is as exact as a carrier address gets, because it belongs to a regional gateway shared by many real phones. A database may briefly show another Southern California city while it updates; that is normal everywhere. For any service that gates by state, the result is a Californian on a phone.

Why Los Angeles is the point of presence

Los Angeles is the largest metro in the state, all three carriers run 4G LTE and 5G across it, and their regional gateways serve a wide slice of California, so a Los Angeles SIM resolves as California for the whole state's purposes. We do not run hardware in San Francisco, San Diego or Sacramento, and we say so plainly. Each plan is one SIM in one modem, router or Android phone, dedicated to one customer, with HTTP(S) and SOCKS5 endpoints and rotation you trigger yourself.

What a California SIM is used for

West Coast social and creator accounts are the most common: profiles registered to a California business live on a California SIM so their history stays consistent. Marketers verify campaigns targeted at Los Angeles and check local results for city terms. Entertainment and streaming teams check what Californian users see. Retail and marketplace teams compare California pricing and tax lines. Agencies with permission manage local business listings from a local address.

The monthly plan suits all of these because they repeat: the same account, the same checks, every day. A dedicated SIM gives them one network and one address history for the whole run, with rotation available whenever a fresh Los Angeles address is wanted.

Keeping a California account consistent

The accounts that do best on a California SIM are the ones that never leave it. Set up the browser profile with Pacific time and US English, sign in through the SIM, and do every session from that profile. Leave the address alone between sessions and rotate only between jobs; the new address is still Los Angeles. With the renewal on, the SIM stays in its modem month after month and the account's history never changes network.

Research and checks belong in a separate signed-out profile on the same SIM or on a second one, so the account's session never shares a browser with a sweep of listings or prices.

Carriers, speed and time zone

AT&T, T-Mobile and Verizon are available in Los Angeles on 4G LTE and 5G; stock changes, so ask before you order if you need one in particular. 4G lines typically deliver 20 to 45 Mbps and 5G lines 50 Mbps and up, depending on signal at the modem. California is on Pacific time, so set the device profile to Pacific and work during Los Angeles daytime for the most natural pattern.

A plan can move to another state later for free from the dashboard, with the remaining days carried over.

California proxy questions