Tier-1 Global Backbone
United States
AS3356 — Level 3 Communications
Originally Level 3 Communications (now part of Lumen Technologies), AS3356 remains one of the core routing pillars of the internet.
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Trace IP on Level 3 Communications
Test whether an IP address is routed through AS3356 (Level 3 Communications) or flagged as a VPN / Datacenter node:
Network Registry Specifications
Autonomous System Number:
AS3356 (3356)
Organization Name:
Level 3 / Lumen Core Backbone
Country of Registration:
United States
Network Classification:
Tier-1 Global Backbone
Peering & Exchange Policy:
Historically the single largest Tier-1 backbone by routes announced. Deep peering across North America and Western Europe.
Sample IPv4 Prefixes
- 8.0.0.0/8
- 4.0.0.0/8
- 64.152.0.0/13
Sample IPv6 Prefixes
- 2001:1900::/32