How to find out which internet carrier my coffee shop uses?

[JEDI]

is there a way?
(employees are clueless.)

 

[MustISO]

Find an IP address of one of the systems and look it up. If you have a device on the network you can run a trace route out to google and see who's systems it passes through on the initial hops.

 

[drebo]

Connect to their wifi, go to www.ipogre.com, and then take that IP and search it in the whois box at www.arin.net .

Or the more funny way, turn your speakers all the way up and go to www.moanmyip.com instead of ipogre.com.

 

[Elixer]

You can also use trace route (tracert google.com), and see what it shows.
*edit
Whoops, was already mentioned above...

 

[debian0001]

Step 1: Go to Coffee Shop and connect to their Wifi.
Step 2: Go to http://www.ipchicken.com/ and copy the IP Address it shows.
Step 3: Go to http://itools.com/tool/arin-whois-domain-search and paste the IP Address
Step 4: Profit

 

[Red Squirrel]

Step 1: Go to Coffee Shop and connect to their Wifi.
Step 2: Go to http://www.ipchicken.com/ and copy the IP Address it shows.
Step 3: Go to http://itools.com/tool/arin-whois-domain-search and paste the IP Address
Step 4: Profit

Pretty much this.

One I like to use is whois.sc, as you can just type in whois.sc/ipaddress. So ex: http://whois.sc/10.1.1.1

 

[John Connor]

http://whatismyipaddress.com/

LOL! I forgot about moanmyip.