Is 52.195.147.51:3128 a proxy? Yes.
52.195.147.51:3128 is a public HTTPS proxy in the HProxy free proxy list, exiting from Japan. It holds a spotty 45% uptime with a high 5810ms response time, and was last checked 2 hr ago.
uptime
JapanOther ports on this IP
52.195.147.51 is answering on 22 ports right now.
Ports like this one rarely travel alone. We hold 79 of them on 52.195.147.51 and have run 32,609 checks against them since August 26, 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 52.195.147.51:5001 at 57.6% across 741 checks
| Port | Uptime | Answered | Status |
|---|---|---|---|
| 5001 | 57.6% | 427 / 741 | Not responding |
| 16277 | 57.0% | 393 / 689 | Not responding |
| 44366 | 56.3% | 386 / 686 | Not responding |
| 25851 | 54.9% | 376 / 685 | Not responding |
| 5546 | 51.9% | 320 / 617 | In the live pool |
| 33613 | 50.0% | 304 / 608 | Not responding |
| 5867 | 49.9% | 378 / 758 | In the live pool |
| 49781 | 48.7% | 294 / 604 | Not responding |
| 8082 | 45.4% | 430 / 947 | Not responding |
| 3128 | 44.6% | 487 / 1,091 | In the live pool |
| 4145 | 44.5% | 404 / 908 | Not responding |
| 12092 | 44.4% | 426 / 959 | Not responding |
How this one compares
Reliable enough to sit in the better half of everything we are watching.
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 7,979 proxies answering right now, the middle of the pack answers 23.2% of the checks we send it.
45%
of 1,091 checks answered
Pool median 23.2%. 52.195.147.51:3128 is in the better half.
5810ms
on its last response
Pool median 7,556ms.
23
days tracked, still in the live pool
Of the 279,900 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 279,900 endpoints that stopped working.
Middle halfMedianFull range
How quickly one answers
Response time on the last successful check, across the 7,979 proxies answering right now.
Where this address sits
Right now our free pool holds 119 other free proxies on Amazon, and 339 in Japan. 52.195.147.51:3128 sits inside that set, so if it is not usable the pages below are where its closest alternatives are. At 5810ms it is slower than the 975ms median for Japan proxies.
Amazon.com, Inc. is the 4th 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 45,115 addresses on AS16509, which is 5.7% of every address in the database and a substantial share of everything HProxy tracks. That makes it the 4th largest source of free proxies of every network we have ever seen. 120 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 before82%
- Never answered18%
- 1LimitedNetwork-ASAS213790227,474
- 2SECURED SERVERS LLCAS1943779,187
- 3SECURED SERVERS LLCAS2045448,120
- 4Amazon.com, Inc.AS1650945,014
- 5M247AS900926,629
- 6Cloudflare, Inc.AS1333522,925
- 7Cloudflare, Inc.AS20924214,276
- 8Alibaba (US) Technology Co., Ltd.AS4510212,273
How to use this proxy
Route a request through 52.195.147.51:3128 over HTTPS. Free proxies are shared and rotate out fast, so test before you rely on it.
curl -x https://52.195.147.51:3128 \
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 52.195.147.51:3128
52.195.147.51:3128 is in the live pool right now, and it stays there only for as long as it keeps answering.
Port 3128: Squid default
Port 3128 is the default for Squid, the most widely installed proxy software in the world. Most addresses published on 3128 are Squid servers that were meant to serve one office or one network and ended up reachable by everybody.
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 52.195.147.51:3128 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 HTTPS.
1,091 checks, 487 answered
That is 45% of the time, measured since August 26, 2026. Every one of those results, successes and failures alike, is a connection HProxy opened itself.
It is being re-tested continuously
52.195.147.51:3128 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 52.195.147.51:3128, and nothing it does not.
- First seen
- August 26, 2026
- Last checked
- September 18, 2026
- Next check due
- continuously
- Checks run
- 1,091
- Times it answered
- 487
- Spoke
- HTTPS
45%
answered 487 of 1,091 checks
Questions about 52.195.147.51:3128
Is 52.195.147.51:3128 a working proxy right now?
Yes. 52.195.147.51:3128 answered HProxy's automated check 2 hr 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 52.195.147.51?
It speaks HTTPS, and our checks grade it elite. The port is 3128. Point your client at 52.195.147.51:3128 over https to route a request through it.
Where is 52.195.147.51 located?
Traffic through it exits from Tokyo, Japan, on Amazon.com, Inc. (AS16509). That is where the destination site will think your request came from.
How fast is 52.195.147.51:3128?
It answered in 5810ms 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 52.195.147.51:3128 been?
Across 24 days of tracking it answered 45% 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 52.195.147.51:3128?
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?
119 other free proxies are live on Amazon (AS16509) in our pool right now, alongside 52.195.147.51:3128. 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 Japan?
Yes, 339 free proxies are exiting from Japan in our pool right now, answering in 975ms 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.
52.195.147.51:3128 answers 45% 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 all
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.