AS46887 Zayo (fka. Crown Castle)
- Autonomous system number
- AS46887
- Registered in
- US
- Registry
- ARIN
- ASN registered
- 2009-04-13
- IPv4 prefixes announced
- 796
- IPv6 prefixes announced
- 252
- Internet exchanges
- 7
- Data centres
- 7
- Internet users (estimate)
- ~66,727
Prefix counts from the global routing table as of 2026-10-05. Exchange and data-centre counts are what the network lists in PeeringDB. User estimate by APNIC Labs, 2026-09-30. Website: www.crowncastle.com
Cloud peering programs
Azure ExpressRoute connectivity provider: Microsoft lists Crown Castle (Connectivity provider) - expressroute peering locations: IAD, JFK, LAX. Checked 2026-10-05.
Source: ExpressRoute peering locations and connectivity partners, Microsoft Learn, licensed CC BY 4.0. Reformatted by BGPScout; the network and facility matches are ours.
Upstreams and peers, traceroute paths through it, where it hands off to its transit providers, routing history and alerts - free with an account, and queryable from Claude, ChatGPT and other AI agents through the BGPScout MCP server.
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