Slack Application

The following page provides details on domains, networks, IPs, hosting services, and content delivery networks used by Slack.

Description

Slack is where work flows. It's where the people you need, the information you share, and the tools you use come together to get things done.

Category	Business
Web Link	Slack - Home Page

Application Domains

The application domains data shown here is available in our Netify Data Feeds solution. The data is accessible via our IP API as well as downloadable datasets.

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Domains

Primary Domains

Primary Domains are owned and managed by the application vendor.

Platform Domains are often provided by hosting providers, content delivery networks, SaaS platforms and other third parties. It is important to identify these domains for DNS filters and hostname blocklists.

Platform Domains

Fastly	{hidden}.fastly.net
Zendesk	{hidden}.zendesk.com	and 1 more

SaaS - Software-as-a-Service

Applications often use various third party platforms for providing authentication, advertising, cybersecurity, e-mail services and more. The Software-as-a-Service (SaaS) platforms used by Slack are summarized below.

SaaS	# of IPs
Zendesk	3

Service	Category	Sample IP	IP Count
Zendesk	Business	216.198.53.6	3 IPs

Hosting

Cloud hosting vendors like AWS and Microsoft Azure provide cloud-based computing and network resources to deliver applications. The hosting platforms used by Slack are summarized below by geographical points-of-presence (PoP). Each PoP can host many IPs to deliver an application.

Cloud Hosts	# of IPs
Amazon AWS	219
NetActuate	4
Google Cloud Platform	1

Host	PoP	Location	IPs
NetActuate	Anycast	Global	4 IPs
Google Cloud Platform	Core	South Korea	1 IP
Amazon AWS	Singapore	Singapore	12 IPs
Amazon AWS	Mumbai	India	13 IPs
Amazon AWS	Columbus	United States	28 IPs
Amazon AWS	Sydney	Australia	11 IPs
Amazon AWS	Frankfurt am Main	Germany	17 IPs
Amazon AWS	Ashburn	United States	46 IPs
Amazon AWS	Tokyo	Japan	14 IPs
Amazon AWS	Core	United States	4 IPs
Amazon AWS	Cape Town	South Africa	11 IPs
Amazon AWS	London	United Kingdom	13 IPs
Amazon AWS	Sao Paulo	Brazil	9 IPs
Amazon AWS	Boardman	United States	28 IPs
Amazon AWS	Dublin	Ireland	13 IPs

Content Delivery Networks - CDNs

In order to get information to end users more quickly, many applications are distributed from multiple geographical points-of-presence (PoPs) using Content Delivery Networks (CDNs). Each PoP can host many IPs to deliver an application. A sample IP is provided.

CDNs	# of IPs
Amazon CloudFront	1969
Fastly	337

PoP Locations

CDN	Network	PoP	Location	IPs
Fastly	Fastly	Toronto	Canada	36 IPs
Fastly	Fastly	Sofia	Bulgaria	2 IPs
Fastly	Fastly	Fortaleza	Brazil	2 IPs
Fastly	Fastly	Detroit	United States	2 IPs
Fastly	Fastly	Christchurch	New Zealand	2 IPs
Fastly	Fastly	Accra	Ghana	4 IPs
Fastly	Fastly	Manila	Philippines	2 IPs
Fastly	Fastly	Kuala Lumpur	Malaysia	2 IPs
Fastly	Fastly	Ashburn	United States	8 IPs
Fastly	Fastly	Seattle	United States	4 IPs
Fastly	Fastly	Singapore	Singapore	6 IPs
Fastly	Fastly	Seoul	South Korea	2 IPs
Fastly	Fastly	Milan	Italy	4 IPs
Fastly	Fastly	Rome	Italy	2 IPs
Fastly	Fastly	Dubai	United Arab Emirates	2 IPs
Fastly	Fastly	Montreal	Canada	35 IPs
Fastly	Fastly	London	United Kingdom	10 IPs
Fastly	Fastly	Chicago	United States	4 IPs
Fastly	Fastly	Gainesville	United States	2 IPs
Fastly	Fastly	Lisbon	Portugal	2 IPs
Fastly	Fastly	Los Angeles	United States	6 IPs
Fastly	Fastly	Honolulu	United States	2 IPs
Fastly	Fastly	Adelaide	Australia	2 IPs
Fastly	Fastly	Dallas	United States	8 IPs
Fastly	Fastly	Calgary	Canada	2 IPs
Fastly	Fastly	Tokyo	Japan	8 IPs
Fastly	Fastly	Frankfurt	Germany	4 IPs
Fastly	Fastly	Miami	United States	4 IPs
Fastly	Fastly	Brussels	Belgium	2 IPs
Fastly	Fastly	Atlanta	United States	8 IPs
Fastly	Fastly	Sydney	Australia	6 IPs
Fastly	Fastly	Amsterdam	Netherlands	2 IPs
Fastly	Fastly	San Jose	United States	8 IPs
Fastly	Fastly	New York	United States	14 IPs
Fastly	Fastly	Hong Kong	Hong Kong	2 IPs
Fastly	Fastly	Melbourne	Australia	2 IPs
Fastly	Fastly	Stockholm	Sweden	2 IPs
Fastly	Fastly	Osaka	Japan	4 IPs
Fastly	Fastly	Sao Paulo	Brazil	4 IPs
Fastly	Fastly	Brisbane	Australia	4 IPs
Fastly	Fastly	Perth	Australia	2 IPs
Fastly	Fastly	Boston	United States	2 IPs
Fastly	Fastly	Paris	France	6 IPs
Fastly	Fastly	Madrid	Spain	6 IPs
Fastly	Fastly	Fujairah	United Arab Emirates	2 IPs
Fastly	Fastly	Columbus	United States	4 IPs
Fastly	Fastly	Minneapolis	United States	4 IPs
Fastly	Fastly	Mumbai	India	4 IPs
Fastly	Fastly	Chennai	India	2 IPs
Fastly	Fastly	Auckland	New Zealand	2 IPs
Fastly	Fastly	Johannesburg	South Africa	4 IPs
Fastly	Fastly	Rio de Janeiro	Brazil	2 IPs
Fastly	Fastly	Houston	United States	2 IPs
Fastly	Fastly	Vancouver	Canada	2 IPs
Fastly	Fastly	Buenos Aires	Argentina	2 IPs
Fastly	Fastly	Santiago	Chile	2 IPs
Fastly	Fastly	Cape Town	South Africa	2 IPs
Fastly	Fastly	Wellington	New Zealand	2 IPs
Fastly	Fastly	Oslo	Norway	2 IPs
Fastly	Fastly	Helsinki	Finland	2 IPs
Fastly	Fastly	Bogota	Colombia	2 IPs
Fastly	Fastly	New Delhi	India	4 IPs
Fastly	Fastly	Denver	United States	20 IPs
Fastly	Fastly	Vienna	Austria	2 IPs
Fastly	Fastly	Dublin	Ireland	2 IPs
Fastly	Fastly	Copenhagen	Denmark	2 IPs
Fastly	Fastly	Manchester	United Kingdom	2 IPs
Fastly	Fastly	St Louis	United States	2 IPs
Fastly	Fastly	Kansas City	United States	2 IPs
Fastly	Fastly	Marseille	France	2 IPs
Fastly	Fastly	Newark	United States	2 IPs
Fastly	Fastly	Kolkata	India	2 IPs
Fastly	Fastly	Hyderabad	India	2 IPs
Fastly	Fastly	Portland	United States	2 IPs
Fastly	Fastly	Phoenix	United States	2 IPs
Fastly	Fastly	Bangkok	Thailand	2 IPs
Fastly	Fastly	Munich	Germany	2 IPs
Amazon CloudFront	Amazon CloudFront	Columbus	United States	7 IPs
Amazon CloudFront	Amazon CloudFront	Dubai	United Arab Emirates	12 IPs
Amazon CloudFront	Amazon CloudFront	Buenos Aires	Argentina	16 IPs
Amazon CloudFront	Amazon CloudFront	Lisbon	Portugal	9 IPs
Amazon CloudFront	Amazon CloudFront	Frankfurt	Germany	52 IPs
Amazon CloudFront	Amazon CloudFront	Johannesburg	South Africa	64 IPs
Amazon CloudFront	Amazon CloudFront	Marseille	France	87 IPs
Amazon CloudFront	Amazon CloudFront	Milan	Italy	38 IPs
Amazon CloudFront	Amazon CloudFront	Madrid	Spain	37 IPs
Amazon CloudFront	Amazon CloudFront	Bucharest	Romania	4 IPs
Amazon CloudFront	Amazon CloudFront	Santiago de Queretaro	Mexico	8 IPs
Amazon CloudFront	Amazon CloudFront	Muscat	Oman	12 IPs
Amazon CloudFront	Amazon CloudFront	Montreal	Canada	19 IPs
Amazon CloudFront	Amazon CloudFront	Dallas	United States	38 IPs
Amazon CloudFront	Amazon CloudFront	Ho Chi Minh City		12 IPs
Amazon CloudFront	Amazon CloudFront	Ashburn	United States	31 IPs
Amazon CloudFront	Amazon CloudFront	Dublin	Ireland	7 IPs
Amazon CloudFront	Amazon CloudFront	Santiago	Chile	12 IPs
Amazon CloudFront	Amazon CloudFront	Portland	United States	15 IPs
Amazon CloudFront	Amazon CloudFront	Perth	Australia	21 IPs
Amazon CloudFront	Amazon CloudFront	Bogota	Colombia	12 IPs
Amazon CloudFront	Amazon CloudFront	Sao Paulo	Brazil	12 IPs
Amazon CloudFront	Amazon CloudFront	Los Angeles	United States	93 IPs
Amazon CloudFront	Amazon CloudFront	Seattle	United States	38 IPs
Amazon CloudFront	Amazon CloudFront	Cape Town	South Africa	47 IPs
Amazon CloudFront	Amazon CloudFront	Tokyo	Japan	26 IPs
Amazon CloudFront	Amazon CloudFront	Paris	France	56 IPs
Amazon CloudFront	Amazon CloudFront	Nairobi	Kenya	46 IPs
Amazon CloudFront	Amazon CloudFront	Stockholm	Sweden	16 IPs
Amazon CloudFront	Amazon CloudFront	Manila	Philippines	40 IPs
Amazon CloudFront	Amazon CloudFront	Singapore	Singapore	30 IPs
Amazon CloudFront	Amazon CloudFront	Manchester	United Kingdom	17 IPs
Amazon CloudFront	Amazon CloudFront	Vienna	Austria	13 IPs
Amazon CloudFront	Amazon CloudFront	Bangkok	Thailand	12 IPs
Amazon CloudFront	Amazon CloudFront	London	United Kingdom	35 IPs
Amazon CloudFront	Amazon CloudFront	Rome	Italy	2 IPs
Amazon CloudFront	Amazon CloudFront	Kansas City	United States	22 IPs
Amazon CloudFront	Amazon CloudFront	Miami	United States	12 IPs
Amazon CloudFront	Amazon CloudFront	Philadelphia	United States	12 IPs
Amazon CloudFront	Amazon CloudFront	Oslo	Norway	8 IPs
Amazon CloudFront	Amazon CloudFront	San Francisco	United States	126 IPs
Amazon CloudFront	Amazon CloudFront	Seoul	South Korea	13 IPs
Amazon CloudFront	Amazon CloudFront	Taipei	Taiwan	22 IPs
Amazon CloudFront	Amazon CloudFront	Tel Aviv	Israel	11 IPs
Amazon CloudFront	Amazon CloudFront	Denver	United States	23 IPs
Amazon CloudFront	Amazon CloudFront	Houston	United States	26 IPs
Amazon CloudFront	Amazon CloudFront	Atlanta	United States	19 IPs
Amazon CloudFront	Amazon CloudFront	Chicago	United States	19 IPs
Amazon CloudFront	Amazon CloudFront	New York	United States	23 IPs
Amazon CloudFront	Amazon CloudFront	Copenhagen	Denmark	8 IPs
Amazon CloudFront	Amazon CloudFront	Vancouver	Canada	12 IPs
Amazon CloudFront	Amazon CloudFront	Sydney	Australia	78 IPs
Amazon CloudFront	Amazon CloudFront	Cairo	Egypt	12 IPs
Amazon CloudFront	Amazon CloudFront	Hong Kong	Hong Kong	51 IPs
Amazon CloudFront	Amazon CloudFront	Toronto	Canada	29 IPs
Amazon CloudFront	Amazon CloudFront	Helsinki	Finland	16 IPs
Amazon CloudFront	Amazon CloudFront	Melbourne	Australia	47 IPs
Amazon CloudFront	Amazon CloudFront	Athens	Greece	12 IPs
Amazon CloudFront	Amazon CloudFront	Mumbai	India	16 IPs
Amazon CloudFront	Amazon CloudFront	Brussels	Belgium	13 IPs
Amazon CloudFront	Amazon CloudFront	Dusseldorf	Germany	16 IPs
Amazon CloudFront	Amazon CloudFront	Hanoi	Vietnam	12 IPs
Amazon CloudFront	Amazon CloudFront	Kuala Lumpur	Malaysia	12 IPs
Amazon CloudFront	Amazon CloudFront	Amsterdam		28 IPs
Amazon CloudFront	Amazon CloudFront	Osaka		6 IPs
Amazon CloudFront	Amazon CloudFront	New Delhi		12 IPs
Amazon CloudFront	Amazon CloudFront	Kolkata		12 IPs
Amazon CloudFront	Amazon CloudFront	Hamburg		21 IPs
Amazon CloudFront	Amazon CloudFront	Brisbane		41 IPs
Amazon CloudFront	Amazon CloudFront	Rio de Janeiro		12 IPs
Amazon CloudFront	Amazon CloudFront	Chennai		12 IPs
Amazon CloudFront	Amazon CloudFront	Lima		12 IPs
Amazon CloudFront	Amazon CloudFront	Sofia	Bulgaria	12 IPs
Amazon CloudFront	Amazon CloudFront	Zurich		11 IPs
Amazon CloudFront	Amazon CloudFront	Manama		12 IPs
Amazon CloudFront	Amazon CloudFront	Barcelona		12 IPs
Amazon CloudFront	Amazon CloudFront	Budapest		11 IPs
Amazon CloudFront	Amazon CloudFront	Warsaw		13 IPs
Amazon CloudFront	Amazon CloudFront	Bengaluru	India	8 IPs
Amazon CloudFront	Amazon CloudFront	Auckland	New Zealand	3 IPs
Amazon CloudFront	Amazon CloudFront	Hyderabad	India	4 IPs
Amazon CloudFront	Amazon CloudFront	Prague	Czechia	8 IPs
Amazon CloudFront	Amazon CloudFront	Zagreb	Croatia	11 IPs
Amazon CloudFront	Amazon CloudFront	Calgary	Canada	4 IPs
Amazon CloudFront	Amazon CloudFront	Fortaleza	Brazil	12 IPs
Amazon CloudFront	Amazon CloudFront	Lagos	Nigeria	16 IPs