Signal Application

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

What is Signal?

Signal - Messaging
Signal (formerly Open Whisper Systems) is an instant group, text, voice, video, document, and picture messaging application which supports end-to-end encryption.

Signal Domains

Primary Domains

Platform Domains

Platform	Sample Domain	Details
AWS Global Accelerator	{hidden}.dualstack.awsglobalaccelerator.com	and 2 more
Cloudflare	{hidden}.cloudflare.net
Zendesk	{hidden}.zendesk.com	and 1 more

Core Networks

Applications are sometimes deployed on partner networks, parent company networks, or regional hosting providers. The following is a sample of Signal IP addresses deployed on this type of network.

Network	IP	PoP	Category	Location
Cell C	105.0.0.38	Core Network	ISP/Telco	South Africa
Cell C	105.0.0.56	Core Network	ISP/Telco	South Africa
Cell C	105.0.0.65	Core Network	ISP/Telco	South Africa
Cell C	105.0.0.91	Core Network	ISP/Telco	South Africa
Cell C	105.0.0.114	Core Network	ISP/Telco	South Africa
... and 286 more

SaaS - Software-as-a-Service

SaaS	Sample IP	# of IPs
PartnerStack	8.6.112.0	12
Zendesk	216.198.53.6	2

Signal use the third-party SaaS platforms shown here. These services typically manage authentication, advertising, cybersecurity, e-mail services and more.

Hosting

SaaS	Sample IP	# of IPs
Amazon AWS	3.68.65.80	4
Microsoft Azure	40.122.45.194	26
Cloudflare Pages	8.6.112.2	54
AWS Global Accelerator	13.248.212.111	8
Google Cloud Platform	107.178.250.75	10
DigitalOcean	161.35.216.58	47
Google Hosted	192.178.56.211	578
Oracle Cloud	130.61.20.153	5

To scale its compute capacity and optimize resources, Signal leverages a multi-cloud architecture.

Content Delivery Networks - CDNs

Summary

CDN	Sample IP	# of IPs
Amazon CloudFront	143.204.55.33	2957
Cloudflare	104.18.2.166	74

To get information to end users more quickly, many apps - including Signal - use Content Delivery Networks (CDNs).

Anycast

CDN	Sample IP	# of IPs
Amazon CloudFront		31
Cloudflare	104.18.2.166	40

Network Map

PoP Locations

CDN	Location	PoP	Network	# of IPs
Amazon CloudFront	Buenos Aires	Argentina	Amazon CloudFront	40
Amazon CloudFront	Johannesburg	South Africa	Amazon CloudFront	86
Amazon CloudFront	Santiago de Queretaro	Mexico	Amazon CloudFront	28
Amazon CloudFront	Muscat	Oman	Amazon CloudFront	33
Amazon CloudFront	Ho Chi Minh City	Vietnam	Amazon CloudFront	52
Amazon CloudFront	Santiago	Chile	Amazon CloudFront	37
Amazon CloudFront	Osaka	Japan	Amazon CloudFront	12
Amazon CloudFront	Cape Town	South Africa	Amazon CloudFront	29
Amazon CloudFront	Nairobi	Kenya	Amazon CloudFront	80
Amazon CloudFront	Manila	Philippines	Amazon CloudFront	16
Amazon CloudFront	Seattle	United States	Amazon CloudFront	1
Amazon CloudFront	Vienna	Austria	Amazon CloudFront	51
Amazon CloudFront	Philadelphia	United States	Amazon CloudFront	12
Amazon CloudFront	Los Angeles	United States	Amazon CloudFront	34
Amazon CloudFront	San Francisco	United States	Amazon CloudFront	13
Amazon CloudFront	Seoul	South Korea	Amazon CloudFront	31
Amazon CloudFront	Tel Aviv	Israel	Amazon CloudFront	26
Amazon CloudFront	Istanbul	Turkey	Amazon CloudFront	12
Amazon CloudFront	Chicago	United States	Amazon CloudFront	106
Amazon CloudFront	Amsterdam	Netherlands	Amazon CloudFront	65
Amazon CloudFront	Tokyo	Japan	Amazon CloudFront	40
Amazon CloudFront	Copenhagen	Denmark	Amazon CloudFront	4
Amazon CloudFront	Vancouver	Canada	Amazon CloudFront	19
Amazon CloudFront	Sydney	Australia	Amazon CloudFront	7
Amazon CloudFront	Paris	France	Amazon CloudFront	112
Amazon CloudFront	Rio de Janeiro	Brazil	Amazon CloudFront	12
Amazon CloudFront	Hong Kong	Hong Kong	Amazon CloudFront	102
Amazon CloudFront	Helsinki	Finland	Amazon CloudFront	92
Amazon CloudFront	Singapore	Singapore	Amazon CloudFront	59
Amazon CloudFront	Melbourne	Australia	Amazon CloudFront	40
Amazon CloudFront	Athens	Greece	Amazon CloudFront	34
Amazon CloudFront	Dubai	United Arab Emirates	Amazon CloudFront	32
Amazon CloudFront	Montreal	Canada	Amazon CloudFront	101
Amazon CloudFront	Atlanta	United States	Amazon CloudFront	46
Amazon CloudFront	London	United Kingdom	Amazon CloudFront	63
Amazon CloudFront	Sao Paulo	Brazil	Amazon CloudFront	67
Amazon CloudFront	Prague	Czechia	Amazon CloudFront	12
Amazon CloudFront	Hanoi	Vietnam	Amazon CloudFront	4
Amazon CloudFront	Lagos	Nigeria	Amazon CloudFront	40
Amazon CloudFront	Mumbai	India	Amazon CloudFront	33
Amazon CloudFront	New Delhi	India	Amazon CloudFront	12
Amazon CloudFront	Toronto	Canada	Amazon CloudFront	35
Amazon CloudFront	Chennai	India	Amazon CloudFront	54
Amazon CloudFront	Brisbane	Australia	Amazon CloudFront	4
Amazon CloudFront	Ashburn	United States	Amazon CloudFront	44
Amazon CloudFront	Marseille	France	Amazon CloudFront	59
Amazon CloudFront	Kuala Lumpur	Malaysia	Amazon CloudFront	40
Amazon CloudFront	Lima	Peru	Amazon CloudFront	35
Amazon CloudFront	Pittsburgh	United States	Amazon CloudFront	12
Amazon CloudFront	Manchester	United Kingdom	Amazon CloudFront	25
Amazon CloudFront	Manama	Bahrain	Amazon CloudFront	12
Amazon CloudFront	Barcelona	Spain	Amazon CloudFront	24
Amazon CloudFront	Dusseldorf	Germany	Amazon CloudFront	4
Amazon CloudFront	Columbus	United States	Amazon CloudFront	12
Amazon CloudFront	New York	United States	Amazon CloudFront	52
Amazon CloudFront	Brussels	Belgium	Amazon CloudFront	19
Amazon CloudFront	Budapest	Hungary	Amazon CloudFront	55
Amazon CloudFront	Sofia	Bulgaria	Amazon CloudFront	75
Amazon CloudFront	Warsaw	Poland	Amazon CloudFront	66
Amazon CloudFront	Bengaluru	India	Amazon CloudFront	4
Amazon CloudFront	Dallas	United States	Amazon CloudFront	12
Amazon CloudFront	Munich	Germany	Amazon CloudFront	12
Amazon CloudFront	Kansas City	United States	Amazon CloudFront	12
Amazon CloudFront	Bangkok	Thailand	Amazon CloudFront	26
Amazon CloudFront	Miami	United States	Amazon CloudFront	110
Amazon CloudFront	Madrid	Spain	Amazon CloudFront	69
Amazon CloudFront	Stockholm	Sweden	Amazon CloudFront	34
Amazon CloudFront	Frankfurt	Germany	Amazon CloudFront	106
Amazon CloudFront	Zagreb	Croatia	Amazon CloudFront	26
Amazon CloudFront	Lisbon	Portugal	Amazon CloudFront	37
Amazon CloudFront	Fortaleza	Brazil	Amazon CloudFront	37
Amazon CloudFront	Cairo	Egypt	Amazon CloudFront	26
Amazon CloudFront	Bogota	Colombia	Amazon CloudFront	19
Amazon CloudFront	Zurich	Switzerland	Amazon CloudFront	39
Amazon CloudFront	Hamburg	Germany	Amazon CloudFront	8
Amazon CloudFront	Oslo	Norway	Amazon CloudFront	8
Amazon CloudFront	Kolkata	India	Amazon CloudFront	15

Other Locations

CDN	Location	PoP	Network	# of IPs
Amazon CloudFront	Core Network	United States	Amazon CloudFront	4
Cloudflare	Core Network	United States	Cloudflare	33
Cloudflare	Core Network		Cloudflare	1