Asslamo Allaikum Brother,
Always check on the web; but if you are in a hurry then...
I travel a lot & finding a Mosque or looking up common Muslim names in the local Phone always helps me (to get to know a Mosque or local Halal place or what-ever)…
You will always find:
• Khan
• Muhammed (Mohammed, Muhammad or some different spelling)
• Syed
• Etc. in most phone books in most cities
Don’t be shy as I have done this a million times in strange places and it always works!
P.S: I have also been shouted at but Allah (SWT) knows that I am trying to find a Mosque so I just move on to the next name in the phone book