Is 204.12.215.221:443 a proxy? It was listed.
204.12.215.221:443 was listed as a public proxy in 1 of our sources. Since May 13, 2026 we have tried it 388 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
United StatesHow this one compares
388 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 388 times, which is why the answer on this page is a flat no rather than a maybe.
0%
of 388 checks answered
Pool median 36.3%. 204.12.215.221:443 sits below it, which is ordinary for a public proxy.
388
real connection attempts
Each one opens a socket and waits up to 90 seconds. Slow and unreachable look identical if you stop listening early.
32
days in our records, never once answering
It is not in the lifespan figures at all: those cover the 428,998 endpoints that worked at least once before they stopped.
May 13, 2026
First listed by our sources
Published as a working proxy by 1 of the public lists HProxy tracks. Being listed is a claim, not a test.
June 17, 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.
November 1, 2026
Most recent re-test
HProxy has opened 388 real connections to this endpoint in total. The sweep reaches every address in the database roughly once every 12 hours.
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 428,998 endpoints that stopped working.
Middle halfMedianFull range
How quickly one answers
Response time on the last successful check, across the 6,404 proxies answering right now.
Continuous monitoring
How HProxy checks 204.12.215.221:443
HProxy has opened a connection to 204.12.215.221:443 388 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.
One public source published it
204.12.215.221 reached HProxy through a single public proxy source. Being published on a list is a claim that an address works. It is not a test, and nobody on that chain is obliged to have tried it.
Port 443: HTTPS
Port 443 carries encrypted web traffic. It is the last port any network will block, because blocking it breaks almost everything else, and that is exactly why proxies get put there.
Every failure here was measured, not assumed
Each check opens a real connection to 204.12.215.221:443 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. 388 times HProxy tried, and 388 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.
388 checks, zero connections
Not one of those 388 attempts reached a working proxy. The address stays in the database with that result attached, because "we tried 388 times and it never answered" is a far more useful answer than silence for anyone who found 204.12.215.221 somewhere and wants to know what it is.
It is still re-tested every 12 hours
204.12.215.221:443 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 November 1, 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 204.12.215.221:443, and nothing it does not.
- First seen
- May 13, 2026
- Last checked
- November 1, 2026
- Next check due
- within 12 hours
- Checks run
- 388
- Times it answered
- 0
- Stopped answering
- June 14, 2026
0%
never answered across 388 attempts
Live free proxies right now
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Where this address sits
Right now our free pool holds no other free proxies on WholeSale, and 14,966 in United States. 204.12.215.221:443 sits inside that set, so if it is not usable the pages below are where its closest alternatives are.
WholeSale Internet, Inc. is the 157th largest source of free proxies we have ever measured.
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 297 addresses on AS32097, which is 0.03% of every address in the database and a small corner of the database. That makes it the 157th largest source of free proxies of every network we have ever seen. None of them are answering at the moment, though every one stays in the re-check rotation in case that changes.
- Answered before3%
- Never answered97%
- 1LimitedNetwork-ASAS213790227,474
- 2SECURED SERVERS LLCAS19437120,032
- 3M247AS900996,477
- 4SECURED SERVERS LLCAS2045456,868
- 5Amazon.com, Inc.AS1650955,927
- 6Cloudflare, Inc.AS1333522,941
- 7Cloudflare, Inc.AS20924214,286
- 8Alibaba (US) Technology Co., Ltd.AS4510212,463
148 networks between
157WholeSale Internet, Inc.AS32097297
Questions about 204.12.215.221:443
Is 204.12.215.221:443 a working proxy?
Not for us. 204.12.215.221:443 was published as a public proxy by our sources, and across 388 checks since May 13, 2026 it has never answered.
Was 204.12.215.221 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 May 13, 2026, and across 388 checks since then it has never answered us. It was published 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 204.12.215.221?
Its reverse DNS record is ds1-221.alovar.com. 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 204.12.215.221 hosted?
United States, WholeSale Internet, Inc. (AS32097). It is a residential or ISP address rather than a datacenter one.
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 WholeSale?
None other than 204.12.215.221:443 at the moment. AS32097 (WholeSale) has no other free proxies live in our pool right now, though that changes as we re-verify.
Are there other free proxies in United States?
Yes, 14,966 free proxies are exiting from United States in our pool right now, answering in 1855ms 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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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.