Is 83.56.15.57:5678 a proxy? Yes.
83.56.15.57:5678 is a public SOCKS4 proxy in the HProxy free proxy list, exiting from Spain. It holds a spotty 25% uptime with a high 2222ms response time, and was last checked 16 min ago.
uptime
SpainHow this one compares
4,578 checks in, its uptime is ordinary for a free proxy.
Every free proxy list quotes an uptime figure. Almost none of them tell you what a normal one looks like, so here is ours: across the 5,553 proxies answering right now, the middle of the pack answers 27.8% of the checks we send it.
25%
of 4,578 checks answered
Pool median 27.8%. 83.56.15.57:5678 sits below it, which is ordinary for a public proxy.
2222ms
on its last response
Pool median 7,936ms, so this one is roughly 4x quicker than typical.
91
days tracked, still in the live pool
Of the 278,894 free proxies we have watched stop working, half were gone within 26 days of us first seeing them.
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 278,894 endpoints that stopped working.
Middle halfMedianFull range
How quickly one answers
Response time on the last successful check, across the 5,553 proxies answering right now.
Where this address sits
Right now our free pool holds no other free proxies on Telefonica_de_EspaNa, and 33 in Spain. 83.56.15.57:5678 sits inside that set, so if it is not usable the pages below are where its closest alternatives are. At 2222ms it answers faster than the 4241ms median for Spain proxies (about 52% of it).
Telefonica_de_EspaNa is the 215th 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 188 addresses on AS3352, which is 0.02% of every address in the database and a small corner of the database. That makes it the 215th largest source of free proxies of every network we have ever seen. 1 of them is 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 before7%
- Never answered92%
- 1LimitedNetwork-ASAS213790227,474
- 2SECURED SERVERS LLCAS1943779,187
- 3SECURED SERVERS LLCAS2045447,198
- 4Amazon.com, Inc.AS1650944,515
- 5Cloudflare, Inc.AS1333522,924
- 6M247AS900919,320
- 7Cloudflare, Inc.AS20924214,275
- 8Alibaba (US) Technology Co., Ltd.AS4510212,249
206 networks between
215Telefonica_de_EspaNaAS3352188
How to use this proxy
Route a request through 83.56.15.57:5678 over SOCKS4. Free proxies are shared and rotate out fast, so test before you rely on it.
curl -x socks4://83.56.15.57:5678 \
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 83.56.15.57:5678
83.56.15.57:5678 is in the live pool right now, and it stays there only for as long as it keeps answering.
Port 5678: 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 83.56.15.57:5678 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, which is how we know it spoke SOCKS4.
4,578 checks, 1,122 answered
That is 25% of the time, measured since June 14, 2026. Every one of those results, successes and failures alike, is a connection HProxy opened itself.
It is being re-tested continuously
83.56.15.57:5678 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 83.56.15.57:5678, and nothing it does not.
- First seen
- June 14, 2026
- Last checked
- September 13, 2026
- Next check due
- continuously
- Checks run
- 4,578
- Times it answered
- 1,122
- Spoke
- SOCKS4
25%
answered 1,122 of 4,578 checks
Questions about 83.56.15.57:5678
Is 83.56.15.57:5678 a working proxy right now?
Yes. 83.56.15.57:5678 answered HProxy's automated check 16 min ago 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 83.56.15.57?
It speaks SOCKS4, and our checks grade it elite. The port is 5678. Point your client at 83.56.15.57:5678 over socks4 to route a request through it.
Where is 83.56.15.57 located?
Traffic through it exits from Spain, on Telefonica_de_EspaNa (AS3352). That is where the destination site will think your request came from.
How fast is 83.56.15.57:5678?
It answered in 2222ms on the last check. Free public proxies are shared, so real-world speed varies with how many other people are using it at the same moment.
How reliable has 83.56.15.57:5678 been?
Across 83 days of tracking it answered 25% 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 83.56.15.57:5678?
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 Telefonica_de_EspaNa?
None other than 83.56.15.57:5678 at the moment. AS3352 (Telefonica_de_EspaNa) has no other free proxies live in our pool right now, though that changes as we re-verify.
Are there other free proxies in Spain?
Yes, 33 free proxies are exiting from Spain in our pool right now, answering in 4241ms 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.
83.56.15.57:5678 answers 25% 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.