Is 121.135.144.141:8005 a proxy? Yes, it was.
121.135.144.141:8005 was a public proxy in the HProxy free proxy pool, exiting from South Korea on Korea Telecom. Across 289 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 289 checks
South KoreaHow this one compares
289 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 289 times, which is why the answer on this page is a flat no rather than a maybe.
0%
of 289 checks answered
Pool median 29.4%. 121.135.144.141:8005 sits below it, which is ordinary for a public proxy.
289
real connection attempts
Each one opens a socket and waits up to 90 seconds. Slow and unreachable look identical if you stop listening early.
31
days in our records, never once answering
It is not in the lifespan figures at all: those cover the 286,259 endpoints that worked at least once before they stopped.
May 14, 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 14, 2026
Stopped answering
It answered our checks for 31 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.
September 23, 2026
Most recent re-test
HProxy has opened 289 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 286,259 endpoints that stopped working.
Middle halfMedianFull range
How quickly one answers
Response time on the last successful check, across the 5,804 proxies answering right now.
Continuous monitoring
How HProxy checks 121.135.144.141:8005
HProxy has checked 121.135.144.141:8005 289 times and it answered 1 of those. Every one of those was a real connection attempt, never a lookup.
One public source published it
121.135.144.141 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 8005: 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 121.135.144.141:8005 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.
289 checks, 1 answered
That is 0% of the time, measured since May 14, 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. 121.135.144.141:8005 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 September 23, 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 121.135.144.141:8005, and nothing it does not.
- First seen
- May 14, 2026
- Last checked
- September 23, 2026
- Next check due
- within 12 hours
- Checks run
- 289
- Times it answered
- 1
- Stopped answering
- June 14, 2026
0%
answered 1 of 289 checks
Live free proxies right now
View all125.136.46.100:80
HTTP · South Korea · 63% · 1045ms
183.110.216.159:8091
HTTP · South Korea · 75% · 1107ms
112.169.99.71:8010
HTTP · South Korea · 67% · 1168ms
119.194.72.67:80
HTTP · South Korea · 73% · 1234ms
118.34.200.206:1080
SOCKS5 · South Korea · 14% · 1271ms
112.184.234.229:80
HTTP · South Korea · 64% · 1398ms
Where this address sits
Right now our free pool holds 17 other free proxies on Korea Telecom, and 363 in South Korea. 121.135.144.141:8005 sits inside that set, so if it is not usable the pages below are where its closest alternatives are.
Korea Telecom is the 23rd 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 3,099 addresses on AS4766, which is 0.39% of every address in the database and a meaningful pocket of the database. That makes it the 23rd largest source of free proxies of every network we have ever seen. 17 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 now1%
- Answered before26%
- Never answered74%
- 1LimitedNetwork-ASAS213790227,474
- 2SECURED SERVERS LLCAS1943779,187
- 3SECURED SERVERS LLCAS2045448,976
- 4Amazon.com, Inc.AS1650946,275
- 5M247AS900933,779
- 6Cloudflare, Inc.AS1333522,925
- 7Cloudflare, Inc.AS20924214,276
- 8Alibaba (US) Technology Co., Ltd.AS4510212,286
14 networks between
23Korea TelecomAS47663,099
Questions about 121.135.144.141:8005
Is 121.135.144.141:8005 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 121.135.144.141 ever actually a proxy?
Yes. We ran 289 checks against it and it answered 1 of them, about 0% of the time, over 31 days on our list.
What is the hostname for 121.135.144.141?
121.135.144.141 publishes no reverse DNS record. That is not unusual and it is not suspicious on its own, but it does mean the address volunteers nothing about who runs it, so the network and the check history below are all there is to go on.
Where was 121.135.144.141 hosted?
Gangnam-gu, Seoul, South Korea, Korea Telecom (AS4766). 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 Korea Telecom?
17 other free proxies are live on Korea Telecom (AS4766) in our pool right now, alongside 121.135.144.141:8005. 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 South Korea?
Yes, 363 free proxies are exiting from South Korea in our pool right now, answering in 1302ms 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.