Is 186.232.176.21:3128 a proxy? It was listed.
186.232.176.21:3128 was listed as a public proxy in 24 of our sources. Since October 15, 2026 we have tried it 3 times and it has never answered us. It may have worked before we started watching. We keep re-testing it around the clock in case it comes back.
never answered us
BrazilHow this one compares
3 attempts. Not one connection.
Being published on a proxy list is a claim that an address works. It is not a test, and nobody in that chain is obliged to have tried it. We tried 3 times, which is why the answer on this page is a flat no rather than a maybe.
0%
of 3 checks answered
Pool median 31%. 186.232.176.21:3128 sits below it, which is ordinary for a public proxy.
3
real connection attempts
Each one opens a socket and waits up to 90 seconds. Slow and unreachable look identical if you stop listening early.
0
days in our records, never once answering
It is not in the lifespan figures at all: those cover the 398,340 endpoints that worked at least once before they stopped.
October 15, 2026
First listed by our sources
Published as a working proxy by 24 of the public lists HProxy tracks. Being listed is a claim, not a test.
October 16, 2026
Moved to the permanent record
It left the live pool here. Nothing is deleted: the address keeps this page and stays in the re-check rotation.
What normal looks like
Every number above is measured against these two.
A percentage on a proxy list means nothing without the shape of the thing it came from. These are the two distributions the rest of this page compares against, drawn from HProxy's own checks rather than from anybody's marketing page.
How long one lasts
Days from the first time we saw an address to the last time it answered, across 398,340 endpoints that stopped working.
Middle halfMedianFull range
How quickly one answers
Response time on the last successful check, across the 7,861 proxies answering right now.
Continuous monitoring
How HProxy checks 186.232.176.21:3128
HProxy has opened a connection to 186.232.176.21:3128 3 times and it has never once answered. That is a measurement, not an assumption, and it is the difference between this record and the lists that republished the address without testing it.
24 public sources published it
186.232.176.21 appears in 24 of the public proxy sources HProxy tracks. Lists copy from each other constantly, so an address showing up in many of them says a lot about how widely it was republished and very little about whether it ever worked.
Port 3128: Squid default
Port 3128 is the default for Squid, the most widely installed proxy software in the world. Most addresses published on 3128 are Squid servers that were meant to serve one office or one network and ended up reachable by everybody.
Every failure here was measured, not assumed
Each check opens a real connection to 186.232.176.21:3128 and gives it up to 90 seconds to answer. Slow is not the same as unreachable, and plenty of working proxies take half a minute to reply. Nothing about this record is inherited from the list that published the address. 3 times HProxy tried, and 3 times the connection did not complete inside that budget, which is why the answer on this page is a flat no rather than a maybe. The handshake is attempted across HTTP, HTTPS, SOCKS4 and SOCKS5, so a proxy is never missed because we guessed the wrong protocol.
3 checks, zero connections
Not one of those 3 attempts reached a working proxy. The address stays in the database with that result attached, because "we tried 3 times and it never answered" is a far more useful answer than silence for anyone who found 186.232.176.21 somewhere and wants to know what it is.
It is still re-tested every 12 hours
186.232.176.21:3128 has never answered, and it is still in the rotation anyway. The sweep reaches every address in the database roughly once every 12 hours regardless of its history, because an address that was dark for months can be brought back online by whoever controls it without telling anybody. Its last check was on October 16, 2026, so the next one is due within a day of that. If that ever happens here, this page changes on its own.
This endpoint
The record
Everything HProxy holds on 186.232.176.21:3128, and nothing it does not.
- First seen
- October 15, 2026
- Last checked
- October 16, 2026
- Next check due
- within 12 hours
- Checks run
- 3
- Times it answered
- 0
- Stopped answering
- October 15, 2026
0%
never answered across 3 attempts
Live free proxies right now
View allWhere this address sits
Right now our free pool holds no other free proxies on Amazonia Publicidade Ltda, and 591 in Brazil. 186.232.176.21:3128 sits inside that set, so if it is not usable the pages below are where its closest alternatives are.
How many free proxies are on Amazonia Publicidade Ltda
Open proxies cluster rather than spreading evenly across the internet. Hosting providers and cloud platforms run enormous numbers of near-identical servers, so a handful of networks end up carrying a disproportionate share of every public proxy list, including ours. HProxy tracks 4 addresses on AS262772, which is 0.00% of every address in the database and a small corner of the database. None of them are answering at the moment, though every one stays in the re-check rotation in case that changes.
- Answered before25%
- Never answered75%
- 1LimitedNetwork-ASAS213790227,474
- 2SECURED SERVERS LLCAS19437120,032
- 3M247AS900988,432
- 4SECURED SERVERS LLCAS2045456,868
- 5Amazon.com, Inc.AS1650950,291
- 6Cloudflare, Inc.AS1333522,934
- 7Cloudflare, Inc.AS20924214,281
- 8Alibaba (US) Technology Co., Ltd.AS4510212,397
- AS262772 sits outside the 250 largest networks we hold.
Questions about 186.232.176.21:3128
Is 186.232.176.21:3128 a working proxy?
Not for us. 186.232.176.21:3128 was published as a public proxy by our sources, and across 3 checks since October 15, 2026 it has never answered.
Was 186.232.176.21 ever actually a proxy?
Not while we have been watching it, which is the honest limit of what we can say. Our record opens on October 15, 2026, and across 3 checks since then it has never answered us. 24 separate lists published it as a working proxy, so it may well have answered somebody before we first tested it. We report what we measured, not what we assume.
What is the hostname for 186.232.176.21?
Its reverse DNS record is 186-232-176-21.gtvfibra.com.br. That is what the address itself publishes about who operates it, which is often more telling than the network name: hosting providers name their machines by region and instance type, and a residential line usually carries its ISP's own pattern.
Where was 186.232.176.21 hosted?
Cascavel, Parana, Brazil, Amazonia Publicidade Ltda (AS262772). It is a datacenter address, not a home connection.
Why keep a page for an address that no longer works?
Because "was this address ever a proxy, and when" is a real question. If you are looking at this IP in a firewall log or an abuse report, the dates and the check counts here are the answer. HProxy's public proxy IP list keeps every address it has ever tracked and carries on re-testing them, so deleting this record would throw all of that away.
How many free proxies are on Amazonia Publicidade Ltda?
None other than 186.232.176.21:3128 at the moment. AS262772 (Amazonia Publicidade Ltda) has no other free proxies live in our pool right now, though that changes as we re-verify.
Are there other free proxies in Brazil?
Yes, 591 free proxies are exiting from Brazil in our pool right now, answering in 2146ms at the median. If this address is not usable, that list is the place to look for a working one.
Where to go next
Upgrade to the paid network
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Free IPs are shared and rotate out fast, so success rates swing. The paid network gives you dedicated-clean pools that hold up under load.
About this list & IP removal
Every proxy here is aggregated from publicly available sources. We do not scan or collect these IP addresses ourselves: we verify entries that are already public (live status, latency, uptime) and store nothing else about the devices behind them. The list is provided as-is, with no warranty, for lawful use only, on the basis of our legitimate interest in a free, transparent proxy directory (Art. 6 (1) (f) GDPR). Never route passwords or sensitive data through a public proxy. If an IP address is yours and you'd like it removed, email legal@hproxy.com and we'll take it down (Art. 21 GDPR). Full details on the report abuse page.