ISC Application

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

What is ISC?

ISC - Technology
Internet Systems Consortium (ISC) is dedicated to developing software and offering services in support of the Internet infrastructure.

ISC Domains

isc.org is the primary domain associated with ISC.

Network Ranges

103.11.221.0/24
149.20.0.0/21
149.20.8.0/23
149.20.10.0/24
149.20.12.0/22
and 91 more

ISC uses dedicated network blocks. This application dataset includes only those network ranges exclusively assigned to this service.

ISC Network

Some organizations deploy all or parts of an application solution through their own infrastructure instead of third party hosting providers like AWS or Google Cloud Platform. The following is a sample of active IP addresses on the ISC Network.

Sample IP	ASN	ASN Description	Route	Location
149.20.2.21	AS27321	ISC F-Root Oak1	149.20.2.0/24	United States
149.20.2.23	AS27321	ISC F-Root Oak1	149.20.2.0/24	United States
149.20.2.26	AS27321	ISC F-Root Oak1	149.20.2.0/24	United States
149.20.2.28	AS27321	ISC F-Root Oak1	149.20.2.0/24	United States
149.20.2.126	AS27321	ISC F-Root Oak1	149.20.2.0/24	United States
... and 6 more

Hosting

SaaS	Sample IP	# of IPs
OVHcloud	51.75.79.143	2
Amazon AWS	52.201.58.154	2
Hurricane Electric	64.62.194.188	4

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

Content Delivery Networks - CDNs

Summary

CDN	Sample IP	# of IPs
Cloudflare	104.18.6.159	4
Fastly	199.232.190.217	141

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

Anycast

CDN	Sample IP	# of IPs
Fastly	151.101.254.217	19
Cloudflare	104.18.6.159	4

Network Map

PoP Locations

CDN	Location	PoP	Network	# of IPs
Fastly	Sofia	Bulgaria	Fastly	2
Fastly	Fortaleza	Brazil	Fastly	2
Fastly	Manila	Philippines	Fastly	2
Fastly	Ashburn	United States	Fastly	2
Fastly	Singapore	Singapore	Fastly	5
Fastly	Seoul	South Korea	Fastly	2
Fastly	Milan	Italy	Fastly	4
Fastly	Dubai	United Arab Emirates	Fastly	2
Fastly	Chicago	United States	Fastly	4
Fastly	Lisbon	Portugal	Fastly	2
Fastly	Los Angeles	United States	Fastly	2
Fastly	Dallas	United States	Fastly	5
Fastly	Tokyo	Japan	Fastly	6
Fastly	Frankfurt	Germany	Fastly	4
Fastly	Miami	United States	Fastly	3
Fastly	Brussels	Belgium	Fastly	2
Fastly	Seattle	United States	Fastly	2
Fastly	Amsterdam	Netherlands	Fastly	2
Fastly	New York	United States	Fastly	3
Fastly	Hong Kong	Hong Kong	Fastly	2
Fastly	Melbourne	Australia	Fastly	2
Fastly	Sao Paulo	Brazil	Fastly	4
Fastly	Toronto	Canada	Fastly	2
Fastly	Madrid	Spain	Fastly	3
Fastly	Montreal	Canada	Fastly	5
Fastly	Fujairah	United Arab Emirates	Fastly	2
Fastly	Johannesburg	South Africa	Fastly	2
Fastly	Rio de Janeiro	Brazil	Fastly	2
Fastly	Houston	United States	Fastly	2
Fastly	Vancouver	Canada	Fastly	2
Fastly	Buenos Aires	Argentina	Fastly	2
Fastly	Santiago	Chile	Fastly	2
Fastly	Cape Town	South Africa	Fastly	2
Fastly	Helsinki	Finland	Fastly	2
Fastly	Vienna	Austria	Fastly	2
Fastly	Dublin	Ireland	Fastly	2
Fastly	Copenhagen	Denmark	Fastly	2
Fastly	Manchester	United Kingdom	Fastly	2
Fastly	London	United Kingdom	Fastly	3
Fastly	Marseille	France	Fastly	2
Fastly	Kolkata	India	Fastly	2
Fastly	Munich	Germany	Fastly	2
Fastly	Paris	France	Fastly	2
Fastly	Columbus	United States	Fastly	1
Fastly	Chennai	India	Fastly	1
Fastly	Rotterdam	Netherlands	Fastly	1
Fastly	Mumbai	India	Fastly	1
Fastly	Lima	Peru	Fastly	1
Fastly	Oslo	Norway	Fastly	1
Fastly	Curitiba	Brazil	Fastly	1
Fastly	Brisbane	Australia	Fastly	1
Fastly	Santiago de Queretaro	Mexico	Fastly	1
Fastly	Stockholm	Sweden	Fastly	1
Fastly	Accra	Ghana	Fastly	1