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Autonomous System details for AS27506

AS27506
Zayo Bandwidth • zayo.com

AS27506 — Zayo Bandwidth

AS Name
CROWNCASTLE-AS27506
Country
United States (US)
Website
Number of IPv4
51,200
Number of IPv6
0
ASN type
ISP
Status
Assigned
Registry
ARIN
Allocated
March 19, 2003
Last updated
June 01, 2026

IP Ranges

17 IPv4 prefixes
Prefix Company Number of IPs
64.20.160.0/19 Zayo Bandwidth 8,192
64.20.160.0/20 Zayo Bandwidth 4,096
64.20.168.0/24 Zayo Bandwidth 256
64.20.175.0/24 Zayo Bandwidth 256
64.20.176.0/20 Zayo Bandwidth 4,096
64.20.177.0/24 Zayo Bandwidth 256
64.20.178.0/24 Zayo Bandwidth 256
64.20.179.0/24 Zayo Bandwidth 256
64.20.180.0/24 Zayo Bandwidth 256
64.20.186.0/24 Zayo Bandwidth 256
64.20.187.0/24 Zayo Bandwidth 256
69.64.192.0/19 Zayo Bandwidth 8,192
69.64.192.0/20 Zayo Bandwidth 4,096
76.8.64.0/20 Zayo Bandwidth 4,096
209.148.32.0/19 Steelcase Inc 8,192
209.148.32.0/20 Steelcase Inc 4,096
209.148.48.0/20 Zayo Bandwidth 4,096

IP ranges are the different blocks of IP addresses advertised by an Autonomous System (AS). These ranges can be used by the same organization operating the AS, or by different organizations.

Peers of AS27506

0 peers

AS27506 has no peers recorded.

Peering is a direct, often free, traffic exchange between Autonomous Systems (ASNs). They share routes only to their own networks and customers, making connections faster and cheaper for that specific traffic, without providing full internet access to each other.

Upstreams of AS27506

1 upstreams

AS27506 uses these Autonomous Systems as its upstreams.

An upstream (or transit provider) is another AS that AS27506 pays for full internet connectivity, allowing it to reach all global destinations and be reachable by them.

Downstreams of AS27506

1 downstreams

AS27506 provides internet connectivity to these downstream Autonomous Systems.

A downstream is a customer Autonomous System that pays another AS (its provider) for internet access. The provider AS carries the downstream's traffic and makes its network reachable.

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