ChinaOther ports on this IP
123.139.45.87 is answering on 2 ports right now.
Ports like this one rarely travel alone. We hold 2 of them on 123.139.45.87 and have run 24 checks against them since September 2, 2026. When an address turns up on public lists across this many ports, each port is published as its own entry, so each one gets its own record here.
Best responding ports
Best on this IP is 123.139.45.87:10801 at 36.4% across 22 checks
How this one compares
2 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 2 times, which is why the answer on this page is a flat no rather than a maybe.
0%
of 2 checks answered
Pool median 23.7%. 123.139.45.87:10811 sits below it, which is ordinary for a public proxy.
2
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 207,366 endpoints that worked at least once before they stopped.
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 207,366 endpoints that stopped working.
Middle halfMedianFull range
How quickly one answers
Response time on the last successful check, across the 12,710 proxies answering right now.
Where this address sits
Right now our free pool holds 10 other free proxies on China Unicom, and 3,213 in China. 123.139.45.87:10811 sits inside that set, so if it is not usable the pages below are where its closest alternatives are.
CHINA UNICOM China169 Backbone is the 33rd 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 1,794 addresses on AS4837, which is 0.24% of every address in the database and a meaningful pocket of the database. That makes it the 33rd largest source of free proxies of every network we have ever seen. 11 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 before11%
- Never answered88%
- 1LimitedNetwork-ASAS213790227,474
- 2SECURED SERVERS LLCAS1943776,816
- 3SECURED SERVERS LLCAS2045440,190
- 4Amazon.com, Inc.AS1650938,826
- 5Cloudflare, Inc.AS1333522,900
- 6M247AS900917,958
- 7Cloudflare, Inc.AS20924214,262
- 8Alibaba (US) Technology Co., Ltd.AS4510212,186
24 networks between
33CHINA UNICOM China169 BackboneAS48371,794
How to use this proxy
Route a request through 123.139.45.87:10811 over HTTP. Free proxies are shared and rotate out fast, so test before you rely on it.
curl -x http://123.139.45.87:10811 \
https://api.ipify.org?format=json
Not a terminal person? Pick your device and we walk you through it, nothing assumed.
Continuous monitoring
How HProxy checks 123.139.45.87:10811
123.139.45.87:10811 is in the live pool right now, and it stays there only for as long as it keeps answering.
Port 10811: 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 failure here was measured, not assumed
Each check opens a real connection to 123.139.45.87:10811 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. 2 times HProxy tried, and 2 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, which is how we know it spoke HTTP.
2 checks, zero connections
Not one of those 2 attempts reached a working proxy. The address stays in the database with that result attached, because "we tried 2 times and it never answered" is a far more useful answer than silence for anyone who found 123.139.45.87 somewhere and wants to know what it is.
It is being re-tested continuously
123.139.45.87:10811 is in the live rotation, so it is re-tested continuously rather than on a daily cycle. If it stops answering it is marked down immediately, and if it stays down for 3 days it moves into the public proxy database with its full record intact. Nothing is deleted at any point.
This endpoint
The record
Everything HProxy holds on 123.139.45.87:10811, and nothing it does not.
- First seen
- September 2, 2026
- Last checked
- September 2, 2026
- Next check due
- continuously
- Checks run
- 2
- Times it answered
- 0
- Spoke
- HTTP
0%
never answered across 2 attempts
Questions about 123.139.45.87:10811
Is 123.139.45.87:10811 a working proxy right now?
Yes. 123.139.45.87:10811 answered HProxy's automated check just now and is in the live free proxy pool as we publish this page. It is re-tested every few minutes, so open this page again for its current state rather than trusting a copy of it.
What kind of proxy is 123.139.45.87?
It speaks HTTP. The port is 10811. Point your client at 123.139.45.87:10811 over http to route a request through it.
Where is 123.139.45.87 located?
Traffic through it exits from Xi'an, China, on CHINA UNICOM China169 Backbone (AS4837). That is where the destination site will think your request came from.
How reliable has 123.139.45.87:10811 been?
Across 1 day of tracking it answered 0% of our checks. The chart on this page shows every day we have recorded for it, including the days it was down.
Is it safe to use 123.139.45.87:10811?
Treat it the way you would any public proxy: it is operated by someone we have no relationship with, it is shared with strangers, and anything you send unencrypted over it can be read. Fine for a quick geo check or a scrape of public data, never for logins, payments or anything private.
How many free proxies are on China Unicom?
10 other free proxies are live on China Unicom (AS4837) in our pool right now, alongside 123.139.45.87:10811. 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 China?
Yes, 3,213 free proxies are exiting from China in our pool right now, answering in 2418ms 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
Free proxies fail. This is what that looks like.
123.139.45.87:10811 answers 0% of the time, and that is ordinary for a public proxy. Nothing here is a service anybody sells you, which is why the numbers swing and why the list turns over constantly.
Other live free proxies
View allAbout 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.