Overview
Proxies.sx sells one thing priced one way: 4G/5G mobile and residential traffic at a single per-GB rate, with endpoints, rotation and support included rather than charged for. The provider states a pool of 1M+ IPs, of which 500k+ are rotating mobile addresses, running on 500+ modems it says it owns plus a paid peer network. It publishes a list of 130 countries, and this directory holds 130 of them on record, which is unusual: most providers state a headline number and enumerate nothing.
What the record shows
The specifications are provider-stated and were read from its own pages on 18 September 2026. The sourcing statement is the most detailed in this directory: the core network is 500+ physical modems on real carriers in about 6 core countries, and the rest is an SDK peer network in which the provider says every peer opts in and is paid. Whether that is true cannot be checked from here, but it is a specific, falsifiable claim rather than the usual silence. HTTP, HTTPS and SOCKS5 are supported. Rotation is unlimited and can be triggered on demand, by token or on an automatic interval. Targeting covers country, city where available and carrier. Concurrency is tied to lifetime purchases: 5 parallel connections at the Starter tier, rising to 80 once 500+ GB has been bought in total, and the provider states tiers never reset. Bandwidth never expires. Payment is by card or 50+ cryptocurrencies. An API and dashboard are included, endpoints are free and unlimited, and support is described as 24/7. The provider states a 95%+ uptime SLA, which is a lower commitment than most of this market advertises and has not been verified here. Not on record: pool size per country, a refund policy, authentication methods, and named support channels or response times.
Pricing
The entry price is USD 4 per GB for either mobile or residential traffic on purchases of 1 to 24 GB, and the same rate applies to both networks, which is rare; mobile traffic normally carries a premium. The provider publishes automatic volume discounts that reduce the per-GB rate on larger purchases, so USD 4 is the most a buyer would pay, not the least. Because everything is billed by traffic, cost follows data moved rather than addresses held. On this entry rate, Proxies.sx is cheaper than 21% of the 30 providers in this directory that also bill per GB, which reflects that mobile-grade traffic is being compared against a field that is mostly residential and datacentre.
Who it suits
This fits work where mobile-IP trust matters more than price per gigabyte: social account management, verification on protected platforms, and scraping of targets that block residential ranges. The never-expiring bandwidth and free endpoints suit intermittent users who buy a block of traffic and use it over months. The published country list and carrier selection suit buyers who need a specific market confirmed before paying. It is a poor fit for high-volume scraping of unprotected sites, where cheaper datacentre traffic would do, and for anyone who needs a documented refund policy or a stronger uptime commitment than 95%+ before buying.
Where to look closer
Ask which of the 130 countries are served by owned modems and which by peers, since the two sources differ in kind. Ask for the residential pool size, which the provider describes as expanding without giving a number. Confirm the authentication methods and whether IP whitelisting is available. Request the refund terms on unused traffic. Ask what the 95%+ uptime figure is measured against and what remedy applies below it. Finally, check whether the concurrency tiers can be raised for a job that needs more than 5 parallel connections from the start.
This assessment is editorial analysis of the sourced facts recorded on this page. Specifications, pricing and coverage are provider-stated and dated in the panels above. No controlled performance test has been run against this provider.
