Is 130.17.12.137:3128 a proxy? Yes.
130.17.12.137:3128 is a public HTTP proxy in the HProxy free proxy list, exiting from United States. It holds a moderate 63% uptime with a reasonable 253ms response time, and was last checked 8 min ago.
Uptime & downtime
6
Days tracked
338
Checks run
36.7%
Downtime
5
Down days
Other ports on this IP
130.17.12.137 is answering on 1 ports right now.
Ports like this one rarely travel alone. We hold 2 of them on 130.17.12.137 and have run 346 checks against them since August 6, 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 130.17.12.137:3128 at 63.3% across 338 checks
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 4,438 proxies answering right now, the middle of the pack answers 15.8% of the checks we send it.
63%
of 338 checks answered
Pool median 15.8%. 130.17.12.137:3128 is in the top quarter.
253ms
on its last response
Pool median 2,979ms, so this one is roughly 12x quicker than typical.
5
days tracked, still in the live pool
Of the 192,713 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 192,713 endpoints that stopped working.
Middle halfMedianFull range
How quickly one answers
Response time on the last successful check, across the 4,438 proxies answering right now.
Where this address sits
Right now our free pool holds 1 other free proxy on Cenic, and 853 in United States. 130.17.12.137:3128 sits inside that set, so if it is not usable the pages below are where its closest alternatives are. At 253ms it answers faster than the 3199ms median for United States proxies (about 8% of it).
How many free proxies are on CENIC
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 13 addresses on AS2152, which is 0.00% of every address in the database and a small corner of the database. 2 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 now15%
- Answered before8%
- Never answered77%
- 1LimitedNetwork-ASAS213790227,266
- 2Amazon.com, Inc.AS1650926,299
- 3Cloudflare, Inc.AS1333522,185
- 4SECURED SERVERS LLCAS2045419,475
- 5Cloudflare, Inc.AS20924214,136
- 6Alibaba (US) Technology Co., Ltd.AS4510211,653
- 7GloboTech CommunicationsAS3666611,542
- 8ChinanetAS41348,362
- AS2152 sits outside the 250 largest networks we hold.
How to use this proxy
Route a request through 130.17.12.137:3128 over HTTP. Free proxies are shared and rotate out fast, so test before you rely on it.
curl -x http://130.17.12.137:3128 \
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 130.17.12.137:3128
130.17.12.137:3128 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 130.17.12.137:3128 and gives it up to 90 seconds to answer. Slow is not the same as dead, 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.
338 checks, 214 answered
That is 63% of the time, measured since August 6, 2026. Every one of those results, successes and failures alike, is a connection HProxy opened itself.
It is being re-tested continuously
130.17.12.137:3128 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 130.17.12.137:3128, and nothing it does not.
- First seen
- August 6, 2026
- Last checked
- August 11, 2026
- Next check due
- continuously
- Checks run
- 338
- Times it answered
- 214
- Spoke
- HTTP
63%
answered 214 of 338 checks
Questions about 130.17.12.137:3128
Is 130.17.12.137:3128 a working proxy right now?
Yes. 130.17.12.137:3128 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 130.17.12.137?
It speaks HTTP. The port is 3128. Point your client at 130.17.12.137:3128 over http to route a request through it.
Where is 130.17.12.137 located?
Traffic through it exits from United States, on CENIC (AS2152). That is where the destination site will think your request came from.
How fast is 130.17.12.137:3128?
It answered in 253ms 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 130.17.12.137:3128 been?
Across 6 days of tracking it answered 63% 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 130.17.12.137:3128?
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 Cenic?
1 other free proxy is live on Cenic (AS2152) in our pool right now, alongside 130.17.12.137:3128. 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 United States?
Yes, 853 free proxies are exiting from United States in our pool right now, answering in 3199ms 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.
130.17.12.137:3128 answers 63% 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 →
130.17.2.209:3128
HTTP · United States · 85% · 25849ms
34.207.239.230:28408
SOCKS4 · United States · 12% · 307ms
18.222.132.180:51799
SOCKS4 · United States · 11% · 309ms
18.190.253.157:39264
SOCKS4 · United States · 11% · 326ms
18.191.250.90:42691
HTTPS · United States · 14% · 340ms
3.19.213.118:56709
SOCKS4 · United States · 14% · 343ms
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.