Data as of Nov 8, 2026
Autonomous system

AS54571

Cooley LLP

Announces 768 addresses in 3 prefixes. None of it is anonymizer space.

Type
Business
US

Announced prefixes

Arrived
PrefixTypeHolderRPKI
50.59.105.0/24
since Nov 2012
BusinessLevel 3 Parent, LLC
173.227.174.0/24
since Nov 2012
BusinessLevel 3 Parent, LLC
217.163.117.0/24
since Feb 2023
BusinessLumen Technologies UK Limited

Network & history

Routing patterns

How its announcements have moved

Arrivals

Year each prefix's current origin began announcing it