Is 63.181.83.210:39406 a proxy? Yes.

63.181.83.210:39406 is a public HTTP proxy in the HProxy free proxy list, exiting from Germany. It holds a spotty 12% uptime, and was last checked 1 h ago.

Live now
12%

uptime

Latencynot measured
ProtocolHTTP
Last checked1 h ago
CountryDE Germany

Uptime & downtime

10.9%uptime over 7 tracked days · 89.1% downtime
7 days agoToday
Up Partial Down No checkTracking since Jul 14

7

Days tracked

368

Checks run

89.1%

Downtime

7

Down days

Other ports on this IP

63.181.83.210 is answering on 168 ports right now.

Ports like this one rarely travel alone. We hold 182 of them on 63.181.83.210 and have run 284,742 checks against them since May 13, 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.

93% of the ports on this IP have answered169 of 182 ports on 63.181.83.210 have completed at least one connection
Source: HProxy verification engine · hproxy.comProxy.

Best responding ports

Best on this IP is 63.181.83.210:32189 at 15.9% across 3,170 checks

Ranked by uptime
PortUptimeAnsweredStatus
3218915.9%503 / 3,170In the live pool
5190815.8%504 / 3,194In the live pool
802815.7%498 / 3,176In the live pool
538115.6%498 / 3,186In the live pool
5503115.5%494 / 3,182In the live pool
78115.3%484 / 3,157In the live pool
1573815.3%485 / 3,164In the live pool
2630115.3%517 / 3,379In the live pool
3415.2%504 / 3,310In the live pool
4351015.1%479 / 3,164In the live pool
3014615.0%476 / 3,170In the live pool
606015.0%474 / 3,163In the live pool

See all 182 ports on 63.181.83.210

How this one compares

Ordinary on uptime, and here is what ordinary means.

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 3,424 proxies answering right now, the middle of the pack answers 15.9% of the checks we send it.

12%

of 1,468 checks answered

median 15.9%

Pool median 15.9%. 63.181.83.210:39406 sits below it, which is ordinary for a public proxy.

1,468

real connection attempts

Each one opens a socket and waits up to 90 seconds. Slow and dead look identical if you stop listening early.

26

days tracked, still in the live pool

Of the 192,073 free proxies we have watched stop working, half were gone within 28 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 a free proxy lastsDays from the first time we saw an address to the last time it answered, across 192,073 endpoints. Tails trimmed at the 5th and 95th percentile.
Lifespan of a free proxy, in days
All endpoints that diedhalf were gone inside 28 days
0204060

Middle halfMedianFull range

Half of the free proxies we have watched stop working were gone within 28 days of us first seeing them.
Source: HProxy verification engine · hproxy.comProxy.
How slow a free proxy usually isResponse time on the last successful check, across the 3,424 proxies answering right now. Tails trimmed at the 5th and 95th percentile.
Response time across the live pool
Live free proxiesmedian 2,544ms
05,00010k15k20k

Middle halfMedianFull range

The spread runs from 195ms to 18,550ms across the same list.
Source: HProxy verification engine · hproxy.comProxy.

Where this address sits

Right now our free pool holds 1,430 other free proxies on Amazon, and 280 in Germany. 63.181.83.210:39406 sits inside that set, so if it is not usable the pages below are where its closest alternatives are.

Amazon.com, Inc. is the 2nd 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 25,672 addresses on AS16509, which is 4.4% of every address in the database and a substantial share of everything HProxy tracks. That makes it the 2nd largest source of free proxies of every network we have ever seen. 1,431 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.

AS16509 in the public proxy database
  • Answering now6%
  • Answered before73%
  • Never answered22%
1,431 of the 25,672 addresses HProxy holds on this network are answering right now.Source: HProxy verification engine
The networks that host the most free proxiesAddresses in HProxy's public proxy list, by network. AS16509 is marked.
  1. 1LimitedNetwork-ASAS213790227,266
  2. 2Amazon.com, Inc.AS1650925,671
  3. 3Cloudflare, Inc.AS1333522,185
  4. 4SECURED SERVERS LLCAS2045419,475
  5. 5Cloudflare, Inc.AS20924214,136
  6. 6Alibaba (US) Technology Co., Ltd.AS4510211,642
  7. 7GloboTech CommunicationsAS3666611,542
  8. 8ChinanetAS41348,342
Source: HProxy verification engine · hproxy.comProxy.

How to use this proxy

Route a request through 63.181.83.210:39406 over HTTP. Free proxies are shared and rotate out fast, so test before you rely on it.

bash

curl -x http://63.181.83.210:39406 \

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 63.181.83.210:39406

63.181.83.210:39406 is in the live pool right now, and it stays there only for as long as it keeps answering.

  1. Port 39406: 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.

  2. 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 63.181.83.210:39406 and gives it up to 90 seconds to answer. Slow is not the same as dead, 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 HTTP.

  3. 1,468 checks, 170 answered

    That is 12% of the time, measured since July 14, 2026. Every one of those results, successes and failures alike, is a connection HProxy opened itself.

  4. It is being re-tested continuously

    63.181.83.210:39406 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 63.181.83.210:39406, and nothing it does not.

First seen
July 14, 2026
Last checked
August 9, 2026
Next check due
continuously
Checks run
1,468
Times it answered
170
Spoke
HTTP

12%

answered 170 of 1,468 checks

Questions about 63.181.83.210:39406

Is 63.181.83.210:39406 a working proxy right now?

Yes. 63.181.83.210:39406 answered HProxy's automated check 1 h 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 63.181.83.210?

It speaks HTTP. The port is 39406. Point your client at 63.181.83.210:39406 over http to route a request through it.

Where is 63.181.83.210 located?

Traffic through it exits from Frankfurt am Main, Germany, on Amazon.com, Inc. (AS16509). That is where the destination site will think your request came from.

How reliable has 63.181.83.210:39406 been?

Across 27 days of tracking it answered 12% 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 63.181.83.210:39406?

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 Amazon?

1,430 other free proxies are live on Amazon (AS16509) in our pool right now, alongside 63.181.83.210:39406. 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 Germany?

Yes, 280 free proxies are exiting from Germany in our pool right now, answering in 1465ms at the median. If this address is not usable, that list is the place to look for a working one.

Upgrade to the paid network

Free proxies fail. This is what that looks like.

63.181.83.210:39406 answers 12% 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.

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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.