NOS 4G proxies in Portugal
One dedicated NOS modem and SIM per proxy, exiting through NOS's own CGNAT ranges in Portugal. Unlimited bandwidth, HTTP and SOCKS5, rotation on demand or every 2–60 minutes.
- 4G
- Carrier IPv4 behind CGNAT
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Facts as of 1 Oct 2026
NOS on our network
Formed from Zon and Optimus
NOS was created in 2014 from the merger of the cable operator Zon and the mobile operator Optimus, and runs both mobile and fixed networks.
Network generation
Our NOS modems in Portugal run on 4G (LTE). The address ranges are the same ones NOS subscribers use every day, and the throughput of a dedicated modem comfortably covers browser automation, scraping and QA workloads.
Carrier-grade NAT
Mobile operators have far more subscribers than public IPv4 addresses, so they place handsets behind carrier-grade NAT (CGNAT): hundreds or thousands of devices share each public address. Proxies on NOS exit through the same CGNAT gateways as NOS's own subscribers, which is why target sites rarely block them — a block would hit their real customers too.
The flip side is that you do not own the address. Other NOS subscribers can appear behind the same IP at the same time, and the public address is assigned by NOS, not by us.
How rotation behaves
Rotating a mobile proxy reconnects the modem's data session, and NOS assigns a new address from its pool. Expect a few seconds of interruption while the session re-establishes; open connections are closed. We enforce 10 seconds between two manual rotations of the same proxy.
Because the carrier chooses the new address, you can occasionally receive one you have seen before, especially after many rotations in a short period. Rotation can be triggered from the dashboard, the API or the rotation link, or scheduled every 2 to 60 minutes.
Connect through NOS
Placeholder credentials in the exact format of a proxy on NOS in Portugal. The last line of each example calls the rotation link.
curl -x http://m_xer9xcrq:[email protected]:15079 \
https://api.ipify.org?format=json
curl --proxy socks5h://m_xer9xcrq:[email protected]:25079 https://api.ipify.org
curl https://proxuno.com/rotate/38df100c5a853277f2679183c73e9bd6import requests
proxy = "http://m_xer9xcrq:[email protected]:15079"
r = requests.get("https://api.ipify.org?format=json",
proxies={"http": proxy, "https": proxy}, timeout=30)
print(r.json())
requests.get("https://proxuno.com/rotate/38df100c5a853277f2679183c73e9bd6", timeout=30)import { ProxyAgent, fetch } from 'undici';
const agent = new ProxyAgent('http://m_xer9xcrq:[email protected]:15079');
const res = await fetch('https://api.ipify.org?format=json', { dispatcher: agent });
console.log(await res.json());
await fetch('https://proxuno.com/rotate/38df100c5a853277f2679183c73e9bd6');<?php
$ch = curl_init('https://api.ipify.org?format=json');
curl_setopt($ch, CURLOPT_PROXY, 'pt.mobile.gw.proxuno.com:15079');
curl_setopt($ch, CURLOPT_PROXYUSERPWD, 'm_xer9xcrq:sUfQLeh5AjQguB35');
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
echo curl_exec($ch);NOS proxy FAQ
Are NOS proxies shared with other customers?
No. Each proxy is a dedicated modem with its own NOS SIM, used by you alone for the duration of the plan. The public IP sits behind NOS's CGNAT, so ordinary NOS subscribers may share it — that is what makes the traffic look like theirs.
Can I move an existing proxy from NOS to another carrier?
No. The carrier is tied to the modem's SIM. Order a proxy on the other carrier, or choose "any carrier" at checkout when the network does not matter for your use.
How long does a rotation take on NOS?
The modem reconnects and receives a new address from NOS, usually within a few seconds. Manual rotations are limited to one every 10 seconds per proxy; scheduled rotation runs every 2 to 60 minutes.
Is bandwidth limited on NOS proxies?
No. Mobile proxies have unlimited bandwidth and we apply no traffic cap. Throughput depends on NOS's radio conditions at the modem site.
How much does a proxy on NOS cost?
$8 for 24 hours, $33 for 7 days or $89 for 30 days per proxy — the same price for every carrier in Portugal. 30-day plans get a volume discount from 5 proxies.
Order a modem on NOS in Portugal
Start with 24 hours for $8. The carrier stays the same when you extend to 7 or 30 days.