Is 104.237.139.130:1081 a proxy? Yes.
104.237.139.130:1081 is a public SOCKS4 proxy in the HProxy free proxy list, exiting from United States. It holds a solid 76% uptime with a high 4259ms response time, and was last checked 14 min ago.
uptime
United StatesHow this one compares
Reliable enough to sit in the top quarter 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 4,525 proxies answering right now, the middle of the pack answers 15.6% of the checks we send it.
76%
of 4,118 checks answered
Pool median 15.6%. 104.237.139.130:1081 is in the top quarter.
4259ms
on its last response
Pool median 3,169ms.
63
days tracked, still in the live pool
Of the 194,413 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 194,413 endpoints that stopped working.
Middle halfMedianFull range
How quickly one answers
Response time on the last successful check, across the 4,525 proxies answering right now.
Where this address sits
Right now our free pool holds 10 other free proxies on Akamai, and 3,300 in United States. 104.237.139.130:1081 sits inside that set, so if it is not usable the pages below are where its closest alternatives are. At 4259ms it is slower than the 1752ms median for United States proxies.
Akamai Technologies, Inc. is the 46th 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 1,123 addresses on AS63949, which is 0.19% of every address in the database and a meaningful pocket of the database. That makes it the 46th 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 before10%
- Never answered89%
- 1LimitedNetwork-ASAS213790227,266
- 2Amazon.com, Inc.AS1650930,907
- 3Cloudflare, Inc.AS1333522,188
- 4SECURED SERVERS LLCAS2045419,475
- 5Cloudflare, Inc.AS20924214,142
- 6Alibaba (US) Technology Co., Ltd.AS4510211,730
- 7GloboTech CommunicationsAS3666611,542
- 8ChinanetAS41348,437
37 networks between
46Akamai Technologies, Inc.AS639491,123
How to use this proxy
Route a request through 104.237.139.130:1081 over SOCKS4. Free proxies are shared and rotate out fast, so test before you rely on it.
curl -x socks4://104.237.139.130:1081 \
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 104.237.139.130:1081
104.237.139.130:1081 is in the live pool right now, and it stays there only for as long as it keeps answering.
Port 1081: SOCKS, alternate
Port 1081 is where the second SOCKS tunnel goes when 1080 on the same machine is already busy. Seeing it usually means somebody set up more than one.
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 104.237.139.130:1081 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.
4,118 checks, 3,136 answered
That is 76% of the time, measured since June 22, 2026. Every one of those results, successes and failures alike, is a connection HProxy opened itself.
It is being re-tested continuously
104.237.139.130:1081 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 104.237.139.130:1081, and nothing it does not.
- First seen
- June 22, 2026
- Last checked
- August 24, 2026
- Next check due
- continuously
- Checks run
- 4,118
- Times it answered
- 3,136
- Spoke
- SOCKS4
76%
answered 3,136 of 4,118 checks
Questions about 104.237.139.130:1081
Is 104.237.139.130:1081 a working proxy right now?
Yes. 104.237.139.130:1081 answered HProxy's automated check 14 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 104.237.139.130?
It speaks SOCKS4, and our checks grade it elite. The port is 1081. Point your client at 104.237.139.130:1081 over socks4 to route a request through it.
Where is 104.237.139.130 located?
Traffic through it exits from Richardson, United States, on Akamai Technologies, Inc. (AS63949). That is where the destination site will think your request came from.
How fast is 104.237.139.130:1081?
It answered in 4259ms 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 104.237.139.130:1081 been?
Across 63 days of tracking it answered 76% 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 104.237.139.130:1081?
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 Akamai?
10 other free proxies are live on Akamai (AS63949) in our pool right now, alongside 104.237.139.130:1081. 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 United States?
Yes, 3,300 free proxies are exiting from United States in our pool right now, answering in 1752ms 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.
104.237.139.130:1081 answers 76% 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
172.105.212.216:8888
HTTP · Japan · 85% · 1077ms
74.207.236.113:8888
HTTP · United States · 96% · 1285ms
96.126.118.190:80
SOCKS4 · United States · 28% · 4259ms
172.104.185.69:80
HTTP · Singapore · 97% · 4485ms
45.79.203.254:48388
SOCKS5 · United States · 20% · 5936ms
172.233.41.187:3128
HTTP · Netherlands · 43% · 22390ms
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.