# Ip address list for api.zoom.us? **URL:** \ **Category:** API and Webhooks\ **Created:** [November 15, 2021, 9:56pm UTC](https://devforum.zoom.us/t/ip-address-list-for-api-zoom-us/60278 "2021-11-15T21:56:37Z")\ **Posts on this page:** 11\ **Page:** 1
**Author:** ![jcritch](https://avatars.discourse-cdn.com/v4/letter/j/5fc32e/32.png) [@jcritch](https://devforum.zoom.us/u/jcritch)\ **Post date:** [November 15, 2021, 9:56pm UTC](https://devforum.zoom.us/t/ip-address-list-for-api-zoom-us/60278/1 "2021-11-15T21:56:37Z")
## Using this template helps us debug your issues more effectively 🙂 **Description** Trying to locate a list of the ip addresses used for api\_zoom\_us. Arrgh, your forum software is limiting me to only two ‘links’ in a posting. So I’ll have to obfuscate my references to URLs and ip addresses in order to get this message to actually post. **Error** An FQDN address object in our firewall is not successfully resolving all of the ip addresses for api\_zoom\_us and this is causing traffic to be blocked. **Which App Type (OAuth / Chatbot / JWT / Webhook)?** All API calls to api\_zoom\_us **Which Endpoint/s?** Yes, I’m trying to find out the ip addresses for all api\_zoom\_us endpoints. **How To Reproduce (If applicable)** Send API traffic through our firewall to api\_zoom\_us **Screenshots (If applicable)** Not applicable. **Additional context** SSL traffic to [api.zoom.us](http://api.zoom.us) seems to attempt to reach out to: 52\_202\_62\_238. Other traffic to [api.zoom.us](http://api.zoom.us) seems to reach out to: 52\_202\_62\_237 ---
**Author:** ![MaxM](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/maxm/32/42303_2.png) [@MaxM](https://devforum.zoom.us/u/MaxM)\ **Post date:** [November 17, 2021, 11:25pm UTC](https://devforum.zoom.us/t/ip-address-list-for-api-zoom-us/60278/2 "2021-11-17T23:25:58Z")
Hey @jcritch, Thank you for reaching out to the Zoom Developer Forum. Are you able to provide more detail on how you’re seeing this? To make sure I understand, you make a request to the HTTPS endpoint and that fails because your firewall resolves the IP in the DNS Zone which is 52.202.62.237 and the response for the request resolves at request-time to end with .238? Thanks, Max ---
**Author:** ![jcritch](https://avatars.discourse-cdn.com/v4/letter/j/5fc32e/32.png) [@jcritch](https://devforum.zoom.us/u/jcritch)\ **Post date:** [November 18, 2021, 2:28pm UTC](https://devforum.zoom.us/t/ip-address-list-for-api-zoom-us/60278/3 "2021-11-18T14:28:38Z")
Hello, what you are describing is how we discovered there may be several ip addresses for the [api.zoom.us](http://api.zoom.us). 52\_202\_62\_237 and 52\_202\_62\_238. These are not listed in the Zoom Support list of ip addresses to configure in a firewall. I’m trying to build a firewall rule that will allow traffic to ALL of the ip addresses associated with [api.zoom.us](http://api.zoom.us). Our firewall is supposed to accomplish this using an FQDN Address Object that uses the URL and resolves it to the ip addresses. However, sometimes this does not resolve to all of the ip addresses a URL resolves to So, what I am trying to find is a list of ALL the ip addresses used for the Zoom API at api\_zoom\_us. Then I can build a list of these ip addresses in the firewall for the firewall allow rule to use. Where may I obtain such a list? The api\_zoom\_us and the ip addresses we have discovered are not listed in the general purpose ip address list Zoom Support maintains for customers to allow through their firewall to access Zoom services. The Zoom API documentation describes ‘endpoints’ without defining the term. My assumption is these Zoom API Endpoints may be servers or ip addresses that the various services in the API are accessed and published through. May understanding of Zoom API Endpoints may not be correct. (to post in this forum, as a new user, I have to obfuscate ip addresses and URLS so they are not considered ‘links’. Since ‘new users’ are restricted to only two ‘links’ in a forum post. ‘.’ replaced with ‘\_’) ---
**Author:** ![MaxM](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/maxm/32/42303_2.png) [@MaxM](https://devforum.zoom.us/u/MaxM)\ **Post date:** [November 19, 2021, 10:11pm UTC](https://devforum.zoom.us/t/ip-address-list-for-api-zoom-us/60278/4 "2021-11-19T22:11:38Z")
Hey @jcritch, Thank you for following up on this. Currently, we don’t have an endpoint or another tool that would provide the IP addresses for this. However, if you’re seeing a different IP is resolved then that’s an issue our engineering team should investigate. I’m thinking we’ll want to make a change to the DNS zone here to make sure it’s up-to-date. When testing this on my end, I haven’t been able to reproduce the issue so far. Is there a specific API that you’re calling when you see this happen? If so, please provide it here. Likewise, if there is a tool like Postman or cURL where I can see this please share steps for that too. Thanks, Max ---
**Author:** ![jcritch](https://avatars.discourse-cdn.com/v4/letter/j/5fc32e/32.png) [@jcritch](https://devforum.zoom.us/u/jcritch)\ **Post date:** [November 22, 2021, 2:00pm UTC](https://devforum.zoom.us/t/ip-address-list-for-api-zoom-us/60278/5 "2021-11-22T14:00:57Z")
I do not see the API calls that are being sent to API\_Zoom.us from our system. All I need is the list of ip addresses associated with the API\_ZOOM\_US site. ---
**Author:** ![MaxM](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/maxm/32/42303_2.png) [@MaxM](https://devforum.zoom.us/u/MaxM)\ **Post date:** [November 23, 2021, 10:52pm UTC](https://devforum.zoom.us/t/ip-address-list-for-api-zoom-us/60278/6 "2021-11-23T22:52:26Z")
Hey @jcritch, Can you clarify what you mean by this? I’m not sure what you are referring to when using underscores (’\_’) instead of decimals (’.’) for a domain name. Thanks, Max ---
**Author:** ![jcritch](https://avatars.discourse-cdn.com/v4/letter/j/5fc32e/32.png) [@jcritch](https://devforum.zoom.us/u/jcritch)\ **Post date:** [November 23, 2021, 11:23pm UTC](https://devforum.zoom.us/t/ip-address-list-for-api-zoom-us/60278/7 "2021-11-23T23:23:29Z")
The Zoom Forum system does not allow me to use ‘.’! It says I am entering too many ‘Links’ as a ‘first time poster’ and does not let me save the message I’ve typed! So, I have to go back through and obfuscate ip addresses, domains, URLs with ‘\_’ instead of ‘.’ just to get the message saved! So I leave a comment in the posting stating the above, for just such a question as you have asked. ---
**Author:** ![MaxM](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/maxm/32/42303_2.png) [@MaxM](https://devforum.zoom.us/u/MaxM)\ **Post date:** [December 3, 2021, 8:41pm UTC](https://devforum.zoom.us/t/ip-address-list-for-api-zoom-us/60278/8 "2021-12-03T20:41:36Z")
Hey @jcritch, Sorry for the delay here and for the duplicate question. You mentioned that earlier but I seemingly forgot that’s what was happening there. The list of IPs for the [api.zoom.us](http://api.zoom.us) site is what can be found by check the DNS Zone for that domain: [https://toolbox.googleapps.com/apps/dig/#A/api.zoom.us](https://toolbox.googleapps.com/apps/dig/#A/api.zoom.us) If you’re seeing different behavior, I’ll need to investigate that case directly and work with our engineering team. Do you have steps for me to see this issue on my end? Thanks, Max ---
**Author:** ![jcritch](https://avatars.discourse-cdn.com/v4/letter/j/5fc32e/32.png) [@jcritch](https://devforum.zoom.us/u/jcritch)\ **Post date:** [December 10, 2021, 9:59pm UTC](https://devforum.zoom.us/t/ip-address-list-for-api-zoom-us/60278/9 "2021-12-10T21:59:04Z")
No. Your suggestion is not true. It always shows only one ip address. Sometimes it shows: 52.202.62.237 Sometimes it shows 52.202.62.238. It never shows a list of the ip addresses used. So I’m not confident it is only these two ip addresses. ---
**Author:** ![gianni.zoom](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/gianni.zoom/32/32523_2.png) [@gianni.zoom](https://devforum.zoom.us/u/gianni.zoom)\ **Post date:** [December 13, 2021, 3:27pm UTC](https://devforum.zoom.us/t/ip-address-list-for-api-zoom-us/60278/10 "2021-12-13T15:27:41Z")
Hi @jcritch , Have you tried this resource: [https://support.zoom.us/hc/en-us/articles/201362683-Zoom-network-firewall-or-proxy-server-settings](https://support.zoom.us/hc/en-us/articles/201362683-Zoom-network-firewall-or-proxy-server-settings)? To your point, I do not see 52.202.62.237 and 52.202.62.238 on this list so I will see if this is the most up to date and relevant information. Gianni ---
**Author:** ![system](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/3X/6/1/614bdd549b610bbaa46ff934617683a02bdaa03c.png) [@system](https://devforum.zoom.us/u/system)\ **Post date:** [January 13, 2022, 1:28am UTC](https://devforum.zoom.us/t/ip-address-list-for-api-zoom-us/60278/11 "2022-01-13T01:28:36Z")
Closed on January 13, 2022, 1:28am UTC This topic was automatically closed 30 days after the last reply. New replies are no longer allowed.