Is 153.135.4.238:8080 a proxy? Yes.
153.135.4.238:8080 is a public HTTP proxy in the HProxy free proxy list, exiting from Japan. It holds a strong 93% uptime with a high 1849ms response time, and was last checked 19 min ago.
JapanHow this one compares
Reliable enough to sit in the top 5% 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 11,767 proxies answering right now, the middle of the pack answers 25.5% of the checks we send it.
93%
of 572 checks answered
Pool median 25.5%. 153.135.4.238:8080 is in the top 5%.
1849ms
on its last response
Pool median 1,422ms.
9
days tracked, still in the live pool
Of the 207,318 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 one lasts
Days from the first time we saw an address to the last time it answered, across 207,318 endpoints that stopped working.
Middle halfMedianFull range
How quickly one answers
Response time on the last successful check, across the 11,767 proxies answering right now.
Where this address sits
Right now our free pool holds no other free proxies on NTT Communications Corporation, and 2,822 in Japan. 153.135.4.238:8080 sits inside that set, so if it is not usable the pages below are where its closest alternatives are. At 1849ms it is slower than the 1239ms median for Japan proxies.
How many free proxies are on NTT Communications Corporation
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 107 addresses on AS4713, which is 0.01% of every address in the database and a small corner of the database. 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 answered93%
- 1LimitedNetwork-ASAS213790227,474
- 2SECURED SERVERS LLCAS1943776,815
- 3SECURED SERVERS LLCAS2045440,189
- 4Amazon.com, Inc.AS1650938,810
- 5Cloudflare, Inc.AS1333522,896
- 6M247AS900917,958
- 7Cloudflare, Inc.AS20924214,260
- 8Alibaba (US) Technology Co., Ltd.AS4510212,186
- AS4713 sits outside the 250 largest networks we hold.
How to use this proxy
Route a request through 153.135.4.238:8080 over HTTP. Free proxies are shared and rotate out fast, so test before you rely on it.
curl -x http://153.135.4.238:8080 \
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 153.135.4.238:8080
153.135.4.238:8080 is in the live pool right now, and it stays there only for as long as it keeps answering.
Port 8080: HTTP, alternate
Port 8080 is the most common proxy port on the internet. It stands in for port 80, and unlike port 80 any program can open it without administrator rights. That single detail is why so much ends up here, the deliberate and the accidental alike.
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 153.135.4.238:8080 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 HTTP.
572 checks, 532 answered
That is 93% of the time, measured since August 24, 2026. Every one of those results, successes and failures alike, is a connection HProxy opened itself.
It is being re-tested continuously
153.135.4.238:8080 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 153.135.4.238:8080, and nothing it does not.
- First seen
- August 24, 2026
- Last checked
- September 2, 2026
- Next check due
- continuously
- Checks run
- 572
- Times it answered
- 532
- Spoke
- HTTP
93%
answered 532 of 572 checks
Questions about 153.135.4.238:8080
Is 153.135.4.238:8080 a working proxy right now?
Yes. 153.135.4.238:8080 answered HProxy's automated check 19 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 153.135.4.238?
It speaks HTTP, and our checks grade it transparent. The port is 8080. Point your client at 153.135.4.238:8080 over http to route a request through it.
Where is 153.135.4.238 located?
Traffic through it exits from Yokohama, Japan, on NTT Communications Corporation (AS4713). That is where the destination site will think your request came from.
How fast is 153.135.4.238:8080?
It answered in 1849ms 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 153.135.4.238:8080 been?
Across 10 days of tracking it answered 93% 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 153.135.4.238:8080?
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 NTT Communications Corporation?
None other than 153.135.4.238:8080 at the moment. AS4713 (NTT Communications Corporation) has no other free proxies live in our pool right now, though that changes as we re-verify.
Are there other free proxies in Japan?
Yes, 2,822 free proxies are exiting from Japan in our pool right now, answering in 1239ms 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
This one is good, and it will still disappear.
153.135.4.238:8080 has answered 93% of our checks, which puts it well above most of what we track. It is still a public endpoint with nobody standing behind it: nobody agreed to serve you, no capacity is set aside for you, and there is no warning on the day it stops. Fine for a test, a bad foundation for anything that has to work tomorrow.
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.