Is 66.94.112.133:1088 a proxy? Yes.
66.94.112.133:1088 is a public SOCKS4 proxy in the HProxy free proxy list, exiting from United States. It holds a spotty 23% uptime with a high 1277ms response time, and last answered our checker 8 min ago.
uptime
How this one compares
1,481 checks in, its uptime is ordinary for a free proxy.
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 7,230 proxies answering right now, the middle of the pack answers 37.1% of the checks we send it.
23%
of 1,481 checks answered
Pool median 37.1%. 66.94.112.133:1088 sits below it, which is ordinary for a public proxy.
1277ms
on its last response
Pool median 4,890ms, so this one is roughly 4x quicker than typical.
26
days tracked, still in the live pool
Of the 428,876 free proxies we have watched stop working, half were gone within 20 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 428,876 endpoints that stopped working.
Middle halfMedianFull range
How quickly one answers
Response time on the last successful check, across the 7,230 proxies answering right now.
Where this address sits
Right now our free pool holds 5 other free proxies on Contabo, and 14,077 in United States. 66.94.112.133:1088 sits inside that set, so if it is not usable the pages below are where its closest alternatives are. At 1277ms it answers faster than the 3735ms median for United States proxies (about 34% of it).
Contabo Inc. is the 189th 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 242 addresses on AS40021, which is 0.03% of every address in the database and a small corner of the database. That makes it the 189th largest source of free proxies of every network we have ever seen. 6 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 now2%
- Answered before16%
- Never answered81%
- 1LimitedNetwork-ASAS213790227,474
- 2SECURED SERVERS LLCAS19437120,032
- 3M247AS900996,437
- 4SECURED SERVERS LLCAS2045456,868
- 5Amazon.com, Inc.AS1650955,718
- 6Cloudflare, Inc.AS1333522,941
- 7Cloudflare, Inc.AS20924214,286
- 8Alibaba (US) Technology Co., Ltd.AS4510212,462
180 networks between
189Contabo Inc.AS40021242
How to use this proxy
Route a request through 66.94.112.133:1088 over SOCKS4. Free proxies are shared and rotate out fast, so test before you rely on it.
curl -x socks4://66.94.112.133:1088 \
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 66.94.112.133:1088
66.94.112.133:1088 is in the live pool right now, and it stays there only for as long as it keeps answering.
Port 1088: 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.
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 66.94.112.133:1088 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 and SOCKS5.
1,481 checks, 334 answered
That is 23% of the time, measured since October 5, 2026. Every one of those results, successes and failures alike, is a connection HProxy opened itself.
It is being re-tested continuously
66.94.112.133:1088 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 66.94.112.133:1088, and nothing it does not.
- First seen
- October 5, 2026
- Last checked
- October 31, 2026
- Next check due
- continuously
- Checks run
- 1,481
- Times it answered
- 334
- Spoke
- SOCKS4, SOCKS5
23%
answered 334 of 1,481 checks
Questions about 66.94.112.133:1088
Is 66.94.112.133:1088 a working proxy right now?
Yes. 66.94.112.133:1088 answered HProxy's automated check 8 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 66.94.112.133?
It speaks SOCKS4, SOCKS5, and our checks grade it elite. The port is 1088. Point your client at 66.94.112.133:1088 over socks4 to route a request through it.
Where is 66.94.112.133 located?
Traffic through it exits from Seattle, United States, on Contabo Inc. (AS40021). That is where the destination site will think your request came from.
How fast is 66.94.112.133:1088?
It answered in 1277ms 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 66.94.112.133:1088 been?
Across 27 days of tracking it answered 23% 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 66.94.112.133:1088?
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 Contabo?
5 other free proxies are live on Contabo (AS40021) in our pool right now, alongside 66.94.112.133:1088. 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, 14,077 free proxies are exiting from United States in our pool right now, answering in 3735ms 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.
66.94.112.133:1088 answers 23% 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
154.12.231.32:80
HTTP · United States · 68% · 12506ms
217.216.67.197:3128
HTTP · United States · 44% · 16528ms
209.145.53.118:8080
HTTP · United States · 70% · 22093ms
195.26.243.76:3128
HTTP · United States · 50% · 30568ms
207.244.244.178:3128
HTTP · United States · 60% · 32846ms
198.199.86.11:80
HTTP · United States · 97% · 60ms
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.