Check-Host.cc

Autonomous System

AS21508 · Comcast - Richmond

Aggregated from public BGP, CT logs, our scan layer, honeypots and global probes.

Announced IPs
71,424
IPv4
IPv4 Prefixes
18
IPv6 Prefixes
64
Hosted Domains
2
resolve into this AS
Peers
Customers
47

BGP Peers

No settlement-free peers observed

CAIDA AS-Relationships lists no peer (p2p) ASes — common for stub networks that buy all transit and don't peer publicly, or for content networks whose peering is over private interconnects not visible to public route collectors.

IXP Memberships

Not registered on PeeringDB

This ASN isn't listed as a member at any PeeringDB-registered Internet Exchange. PeeringDB registration is voluntary — absence here does NOT prove the AS isn't peering anywhere.