Lumen CDN

The following page provides details on the Lumen CDN content delivery network (CDN): network maps, network ranges, PoPs, IPs, ASNs and applications.

What Is Lumen CDN?

Lumen CDN - Logo

Lumen Technologies (was CenturyLink/Level3) is an IT company that integrates network infrastructure, cloud connectivity, security and enterprise-class services. Lumen CDN has been merged with the Lumen app.

Category CDN
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Network Intelligence

The network data shown here is also available via the Netify Data Feed API. We provide network intelligence to help deliver better digital experiences to end users and businesses.

Netify Data Feeds

Lumen CDN - Network Ranges

IPv4 Network Ranges

  • 4.0.0.0/14
  • 4.4.0.0/15
  • 4.6.0.0/16
  • 4.7.0.0/20
  • and 10320 more

IPv6 Network Ranges

  • 2a0f:7d00:3::/48
  • 2a05:6744::/48
  • 2a05:8943::/32
  • 2a05:8944::/32
  • and 577 more
Network Ranges and Routes
The networks listed here are low-level detailed routes - either BGP or internal. See What Is BGP for technical details.

Lumen CDN - ASNs

AS32421 Level 3 Parent
AS10753 Level 3 Parent
AS3549 Lumen (GlobalCrossing)
AS3356 Lumen (Level 3)
and 1 more
What is an ASN?
An Autonomous System Number (ASN) is a unique identifier assigned to a collection of IP networks managed by a company or organization.

Lumen CDN - Active Applications

Name Category  
Webex - Logo Webex VoIP/Conferencing App Info
Windows Update - Logo Windows Update OS/Software Updates App Info
Microsoft - Logo Microsoft Business App Info
Microsoft Office - Logo Microsoft Office Business App Info
Kaspersky - Logo Kaspersky Cybersecurity App Info
SonicWall - Logo SonicWall Cybersecurity App Info

... and 25 more

The adjacent list of applications are deployed on Lumen CDN.

Lumen CDN - Decentralized Apps

Name IP Info Sample IP
Speedtest - Logo Speedtest 23 IPs 4.42.70.89
Tor - Logo Tor 11 IPs 62.67.28.2


Decentralized App?
Some applications, by their very nature, are distributed around various corners of the Internet. Examples: speedtest servers and voice-over-WiFi (3GPP).

Lumen CDN - Anycast

Lumen CDN provides Anycast. Anycast makes it possible to route a single IP address to a variety of different geographic points-of-presence.

Lumen CDN - Network Map

Lumen CDN is deployed across 4 countries on 9 PoPs.

Lumen CDN - Points-of-Presence

Integration and Custom Solutions

Do you have any questions about integration, APIs or custom development?

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