Is 171.250.178.44:4006 a proxy? Yes, it was.
171.250.178.44:4006 was a public proxy in the HProxy free proxy pool, exiting from Vietnam on Viettel Group. Across 207 checks it answered 0% of the time, and it has since gone dark (last answered June 14, 2026), so it is not a usable proxy right now.
across all 207 checks
VietnamHow this one compares
207 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 207 times, which is why the answer on this page is a flat no rather than a maybe.
0%
of 207 checks answered
Pool median 36.5%. 171.250.178.44:4006 sits below it, which is ordinary for a public proxy.
207
real connection attempts
Each one opens a socket and waits up to 90 seconds. Slow and unreachable look identical if you stop listening early.
23
days in our records, never once answering
It is not in the lifespan figures at all: those cover the 429,540 endpoints that worked at least once before they stopped.
May 22, 2026
First listed by our sources
Published as a working proxy by 7 of the public lists HProxy tracks. Being listed is a claim, not a test.
June 14, 2026
Stopped answering
It answered our checks for 23 days before it went quiet.
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 2, 2026
Most recent re-test
HProxy has opened 207 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 429,540 endpoints that stopped working.
Middle halfMedianFull range
How quickly one answers
Response time on the last successful check, across the 7,680 proxies answering right now.
Continuous monitoring
How HProxy checks 171.250.178.44:4006
HProxy has checked 171.250.178.44:4006 207 times and it answered 1 of those. Every one of those was a real connection attempt, never a lookup.
7 public sources published it
171.250.178.44 appears in 7 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 4006: Registered port range
This port sits in the middle range, where any ordinary program can listen without special permission. The number itself carries no reserved meaning, which tells you somebody picked it on purpose instead of accepting a default.
Every check is a real connection
HProxy does not read this address off somebody else's list and pass it on. Each check opens a real connection to 171.250.178.44:4006 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. Anything that does not answer in that budget counts as a failure and is recorded as one, which is why the percentage on this page moves rather than sitting at a marketing number. The handshake is attempted across HTTP, HTTPS, SOCKS4 and SOCKS5, so a proxy is never missed because we guessed the wrong protocol.
207 checks, 1 answered
That is 0% of the time, measured since May 22, 2026. Every one of those results, successes and failures alike, is a connection HProxy opened itself.
We are still watching for it to come back
Being archived does not stop the testing. 171.250.178.44:4006 answered before, so it is exactly the kind of address that can return, and the sweep works through the whole database and reaches every address roughly once every 12 hours. Its last check was on November 2, 2026, so the next one is due within a day of that. The moment it answers again it is promoted straight back into the live free proxy list, automatically, with no manual step.
This endpoint
The record
Everything HProxy holds on 171.250.178.44:4006, and nothing it does not.
- First seen
- May 22, 2026
- Last checked
- November 2, 2026
- Next check due
- within 12 hours
- Checks run
- 207
- Times it answered
- 1
- Stopped answering
- June 14, 2026
0%
answered 1 of 207 checks
Live free proxies right now
View allWhere this address sits
Right now our free pool holds 10 other free proxies on Viettel, and 1,086 in Vietnam. 171.250.178.44:4006 sits inside that set, so if it is not usable the pages below are where its closest alternatives are.
Viettel Group is the 13th 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 8,390 addresses on AS7552, which is 0.88% of every address in the database and a meaningful pocket of the database. That makes it the 13th largest source of free proxies of every network we have ever seen. 10 of them are answering right now, so if this particular address is not usable, the network is a reasonable place to look for one that is.
- Answering now<1%
- Answered before20%
- Never answered79%
- 1LimitedNetwork-ASAS213790227,474
- 2SECURED SERVERS LLCAS19437120,032
- 3M247AS900997,438
- 4SECURED SERVERS LLCAS2045456,868
- 5Amazon.com, Inc.AS1650956,289
- 6Cloudflare, Inc.AS1333522,944
- 7Cloudflare, Inc.AS20924214,286
- 8Alibaba (US) Technology Co., Ltd.AS4510212,468
4 networks between
13Viettel GroupAS75528,386
Questions about 171.250.178.44:4006
Is 171.250.178.44:4006 a working proxy?
No, not any more. It was a working public proxy in HProxy's free pool and has since gone dark, last answering on June 14, 2026. We still re-test it periodically in case it returns.
Was 171.250.178.44 ever actually a proxy?
Yes. We ran 207 checks against it and it answered 1 of them, about 0% of the time, over 23 days on our list.
What is the hostname for 171.250.178.44?
Its reverse DNS record is dynamic-ip-adsl.viettel.vn. 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 171.250.178.44 hosted?
Ho Chi Minh City, Ho Chi Minh, Vietnam, Viettel Group (AS7552). 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 Viettel?
10 other free proxies are live on Viettel (AS7552) in our pool right now, alongside 171.250.178.44:4006. Networks that host one open proxy usually host several, which is why the whole AS is worth browsing rather than just this address.
Are there other free proxies in Vietnam?
Yes, 1,086 free proxies are exiting from Vietnam in our pool right now, answering in 1671ms 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.