Check port availability

Check for TCP port availability from 120+ locations worldwide. Sign up for a Site24x7 Free Account to monitor up to 5 websites for free continuously and be alerted when it goes down!

Domain Name
Port Number
Test from locations: Fremont-CA, Amsterdam, Singapore, Melbourne, Toronto
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  • Fremont-CA - US
  • New Jersey - US
  • Houston - US
  • Dallas - US
  • Seattle - US
  • Chicago - US
  • Virginia - US
  • New York - US
  • Los Angeles - US
  • Denver - US
  • Kansas - US
  • Washington - US
  • Montreal - CA
  • Phoenix - US
  • Atlanta - US
  • Toronto - CA
  • Miami - US
  • Queretaro - MX
  • Vancouver - CA
  • Detroit - US
  • San Francisco - US
  • Philadelphia - US
  • Boston - US
  • Las Vegas - US
  • Portland - US
  • Salt Lake City - US
  • Tampa - US
  • San Jose - CR
  • Columbus - US
  • Mexico City - MX
  • St. Louis - US
  • Jacksonville - US
  • Honolulu - US
  • Pittsburgh - US
  • Charlotte - US
  • Minneapolis - US
 
  • Amsterdam - NL
  • London - UK
  • Frankfurt - DE
  • Stockholm - SWE
  • Paris - FR
  • Ireland - IE
  • Barcelona - ES
  • Milano - IT
  • Munich - DE
  • Brussels - BE
  • Copenhagen - DA
  • Vienna - AT
  • Zurich - CH
  • Warsaw - PL
  • Bucharest - RO
  • Moscow - RU
  • Oslo - NOR
  • Manchester - UK
  • Falkenstein - DE
  • Strasbourg - FR
  • Edinburgh - UK
  • Helsinki - FI
  • Lisbon - PT
  • Budapest - HU
  • Luxembourg City - LU
  • Prague - CZ
  • Sofia - BG
  • Athens - GR
  • Kiev - UA
  • Saint Petersburg - RU
  • Madrid - ES
  • Nottingham - UK
  • Wakefield - UK
  • Belgrade - RS
  • Birmingham - UK
  • Yorkshire - UK
  • Geneva - CH
 
  • Rio de Janeiro - BR
  • Sao Paulo - BR
  • Buenos Aires - ARG
  • Medellin - CO
  • Santiago - CL
  • Lima - PE
  • Bogota - CO
 
  • Melbourne - AUS
  • Sydney - AUS
  • Auckland - NZ
  • Brisbane - AUS
  • Perth - AUS
  • Canberra - AUS
  • Adelaide - AUS
 
  • Johannesburg - ZA
  • Lagos - NG
 
  • Singapore - SG
  • Nagano - JP
  • Shanghai - CHN
  • Hong Kong - HK
  • Mumbai - IN
  • Istanbul - TR
  • Tel Aviv - IL
  • Beijing - CHN
  • Hangzhou City - CHN
  • Qingdao City - CHN
  • Tokyo - JP
  • Dubai - UAE
  • Bengaluru - IN
  • Seoul - SK
  • Kuala Lumpur - MYS
  • Riyadh - KSA
  • Manila - PH
  • Shenzhen - CHN
  • Jakarta - ID
  • Zhangjiakou - CHN
  • Bangkok - TH
  • Guangzhou - CHN
  • Hanoi - VN
  • Chengdu - CHN
  • Chongqing - CHN
  • Huhehaote - CHN
  • Hyderabad - IN
  • Osaka - JP
  • Taipei - TW
  • New Delhi - IN
  • Indore - IN
  • Pune - IN
  • Kolkata - IN
  • Manama - BH
  • Guiyang - CHN
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Check Port Availability

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