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Country Targeting

To target a specific country, simply add a two-letter country code to your username. Use lowercase letters, see the list of country codes. Here’s how it looks in a cURL request: 
curl --proxy "[username]-country-us-session-YY:[password]@proxy.toolip.io:[port]" "http://httpbin.org/ip"

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City Targeting

Targeting a city is just as simple: append the city name to your username. Ensure the city code is lowercase with no spaces, for example, San Francisco would look like this: -city-sanfrancisco. 
curl --proxy "[username]-country-us-session-YY-city-sanfrancisco:[password]@proxy.toolip.io:[port]" "http://httpbin.org/ip"

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State Targeting

For regions like the USA or Australia, you can focus even more by targeting states. Just use the two-letter state code in lowercase. Here’s how you’d target New York in the USA: 
curl --proxy "[username]-country-us-session-YY-state-ny:[password]@proxy.toolip.io:[port]" "http://httpbin.org/ip"

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ASN Targeting

To target a specific ASN, just add the ASN number to your username in the format -asn-[ASN_NUMBER]. 
curl --proxy "[username]-asn-56386-session-YY:[password]@proxy.toolip.io:[port]" "http://httpbin.org/ip"

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ZIP Code Targeting

For precise location targeting, you can even specify proxies based on ZIP codes. Here’s an example for Memphis, US with the ZIP code 12345: 
curl --proxy "[username]-city-memphis-zip-12345-session-YY:[password]@proxy.toolip.io:[port]" "http://httpbin.org/ip"
Rotating Residential does not support POST requests and operates in read-only mode.