Is 3.231.160.150:51685 a proxy? Yes.
3.231.160.150:51685 is a public SOCKS5 proxy in the HProxy free proxy list, exiting from United States. It holds a strong 94% uptime with a high 1171ms response time, and was last checked 5 min ago.
uptime
Other ports on this IP
3.231.160.150 is answering on 10 ports right now.
Ports like this one rarely travel alone. We hold 10 of them on 3.231.160.150 and have run 222 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 3.231.160.150:3128 at 98.9% across 90 checks
| Port | Uptime | Answered | Status |
|---|---|---|---|
| 3128 | 98.9% | 89 / 90 | In the live pool |
| 8080 | 96.7% | 88 / 91 | In the live pool |
| 51685 | 94.1% | 32 / 34 | In the live pool |
| 808 | 0.0% | 0 / 1 | In the live pool |
| 4443 | 0.0% | 0 / 1 | In the live pool |
| 7070 | 0.0% | 0 / 1 | In the live pool |
| 8182 | 0.0% | 0 / 1 | In the live pool |
| 9155 | 0.0% | 0 / 1 | In the live pool |
| 39657 | 0.0% | 0 / 1 | In the live pool |
| 48713 | 0.0% | 0 / 1 | In the live pool |
How 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 6,506 proxies answering right now, the middle of the pack answers 24.2% of the checks we send it.
94%
of 34 checks answered
Pool median 24.2%. 3.231.160.150:51685 is in the top quarter.
1171ms
on its last response
Pool median 2,664ms, so this one is roughly 2x quicker than typical.
0
days tracked, still in the live pool
Of the 195,518 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 195,518 endpoints that stopped working.
Middle halfMedianFull range
How quickly one answers
Response time on the last successful check, across the 6,506 proxies answering right now.
Where this address sits
Right now our free pool holds 69 other free proxies on Amazon, and 8,989 in United States. 3.231.160.150:51685 sits inside that set, so if it is not usable the pages below are where its closest alternatives are. At 1171ms it answers faster than the 6560ms median for United States proxies (about 18% of it).
Amazon.com, Inc. is the 45th 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 1,260 addresses on AS14618, which is 0.19% of every address in the database and a meaningful pocket of the database. That makes it the 45th largest source of free proxies of every network we have ever seen. 70 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 now6%
- Answered before34%
- Never answered60%
- 1LimitedNetwork-ASAS213790227,474
- 2Amazon.com, Inc.AS1650932,955
- 3SECURED SERVERS LLCAS1943731,974
- 4Cloudflare, Inc.AS1333522,875
- 5SECURED SERVERS LLCAS2045419,479
- 6M247AS900915,186
- 7Cloudflare, Inc.AS20924214,257
- 8Alibaba (US) Technology Co., Ltd.AS4510212,153
36 networks between
45Amazon.com, Inc.AS146181,260
How to use this proxy
Route a request through 3.231.160.150:51685 over SOCKS5. Free proxies are shared and rotate out fast, so test before you rely on it.
curl -x socks5://3.231.160.150:51685 \
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 3.231.160.150:51685
3.231.160.150:51685 is in the live pool right now, and it stays there only for as long as it keeps answering.
Port 51685: Ephemeral port range
This is a throwaway port number, the kind a computer hands out for a few minutes and then takes back. Anything published on one tends to move or disappear when its host restarts, which is a large part of why public proxy lists rot so fast.
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 3.231.160.150:51685 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 SOCKS5.
34 checks, 32 answered
That is 94% of the time, measured since August 27, 2026. Every one of those results, successes and failures alike, is a connection HProxy opened itself.
It is being re-tested continuously
3.231.160.150:51685 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 3.231.160.150:51685, and nothing it does not.
- First seen
- August 27, 2026
- Last checked
- August 27, 2026
- Next check due
- continuously
- Checks run
- 34
- Times it answered
- 32
- Spoke
- SOCKS5
94%
answered 32 of 34 checks
Questions about 3.231.160.150:51685
Is 3.231.160.150:51685 a working proxy right now?
Yes. 3.231.160.150:51685 answered HProxy's automated check 5 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 3.231.160.150?
It speaks SOCKS5, and our checks grade it elite. The port is 51685. Point your client at 3.231.160.150:51685 over socks5 to route a request through it.
Where is 3.231.160.150 located?
Traffic through it exits from Ashburn, United States, on Amazon.com, Inc. (AS14618). That is where the destination site will think your request came from.
How fast is 3.231.160.150:51685?
It answered in 1171ms 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 3.231.160.150:51685 been?
Across 1 day of tracking it answered 94% 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 3.231.160.150:51685?
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?
69 other free proxies are live on Amazon (AS14618) in our pool right now, alongside 3.231.160.150:51685. 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, 8,989 free proxies are exiting from United States in our pool right now, answering in 6560ms 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.
3.231.160.150:51685 has answered 94% 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 all
34.234.90.157:8080
HTTP · United States · 91% · 308ms
18.208.158.27:8080
HTTP · United States · 92% · 308ms
18.208.195.229:23967
SOCKS4 · United States · 97% · 309ms
34.207.239.230:52847
HTTPS · United States · 16% · 314ms
100.61.113.24:8080
HTTP · United States · 98% · 316ms
98.94.14.234:3128
HTTP · United States · 96% · 317ms
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.