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Autonomous System

AS19092

Zayo Bandwidth

Announced IPs
69,376
CIDR prefixes
64
ASN
AS19092

Reputation · trust score

A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.

69/100
Moderate
How this score is built
  • Baseline (neutral) 65
  • Enterprise allocation +4
  • Trust score 69 / 100

Experimental · trust-vectors model v1.3.0 — a transparent heuristic, not a definitive verdict. How it works →

About Zayo Group

Zayo Group, Inc. is a digital infrastructure company providing fiber-optic networks, high-capacity connectivity, and networking solutions to enterprises, hyperscalers, cloud and content providers, data centers, and telecommunications carriers worldwide.

Founded
2007
Headquarters
Denver
Industry
telecommunications company

Network profile

Source: PeeringDB →
Network type NSP
Geographic scope North America
Traffic ratio Heavy Inbound
Peering policy Restrictive
IRR record AS-360C

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
66.62.0.0/19 8.2K
4.4%
Zayo Bandwidth US — —
66.62.32.0/20 4.1K
0.7%
Zayo Bandwidth US — —
66.62.96.0/20 4.1K
1.5%
Zayo Bandwidth US — —
66.62.208.0/20 4.1K
0.0%
Zayo Bandwidth US — —
216.166.176.0/20 4.1K
41.3%
Zayo Bandwidth US — —
66.62.48.0/21 2.0K
6.3%
Zayo Bandwidth US — —
66.62.80.0/21 2.0K
0.6%
Zayo Bandwidth US — —
66.62.136.0/21 2.0K
0.0%
Zayo Bandwidth US — —
66.62.152.0/21 2.0K
0.0%
Zayo Bandwidth US — —
66.62.168.0/21 2.0K
5.6%
Zayo Bandwidth US — —
66.62.184.0/21 2.0K
0.0%
Zayo Bandwidth US — —
66.62.192.0/21 2.0K
1.4%
Zayo Bandwidth US Montana Bozeman
66.62.248.0/21 2.0K
0.1%
Zayo Bandwidth US — —
216.166.160.0/21 2.0K
0.2%
Zayo Bandwidth US — —
66.62.56.0/22 1.0K
3.4%
Zayo Bandwidth US — —
66.62.64.0/22 1.0K
0.2%
Zayo Bandwidth US — —
66.62.116.0/22 1.0K
0.0%
Zayo Bandwidth US — —
66.62.128.0/22 1.0K
1.1%
Zayo Bandwidth US — —
66.62.176.0/22 1.0K
0.0%
Zayo Bandwidth US — —
66.62.200.0/22 1.0K
2.5%
Zayo Bandwidth US Montana Bozeman
66.62.224.0/22 1.0K
0.3%
Zayo Bandwidth US — —
66.62.232.0/22 1.0K
29.2%
Zayo Bandwidth US — —
216.166.128.0/22 1.0K
0.4%
Zayo Bandwidth US — —
216.166.136.0/22 1.0K
30.7%
Zayo Bandwidth US Oregon Boardman
216.166.144.0/22 1.0K
28.8%
Zayo Bandwidth US Montana Corvallis
216.166.152.0/22 1.0K
0.0%
Zayo Bandwidth US — —
66.62.62.0/23 512
0.0%
Zayo Bandwidth US — —
66.62.68.0/23 512
0.0%
Zayo Bandwidth US — —
66.62.72.0/23 512
0.0%
Zayo Bandwidth US — —
66.62.78.0/23 512
0.0%
Zayo Bandwidth US — —
66.62.114.0/23 512
0.0%
Zayo Bandwidth US — —
66.62.134.0/23 512
0.0%
Zayo Bandwidth US — —
66.62.144.0/23 512
0.0%
Zayo Bandwidth US — —
66.62.148.0/23 512
0.0%
Zayo Bandwidth US — —
66.62.162.0/23 512
0.0%
Zayo Bandwidth US — —
66.62.164.0/23 512
0.0%
Zayo Bandwidth US — —
66.62.206.0/23 512
49.4%
Zayo Bandwidth US Montana Bozeman
66.62.228.0/23 512
0.2%
Zayo Bandwidth US — —
66.62.236.0/23 512
97.1%
Zayo Bandwidth US — —
66.62.246.0/23 512
0.0%
Zayo Bandwidth US — —
216.166.132.0/23 512
49.4%
Zayo Bandwidth US — —
216.166.150.0/23 512
0.4%
Zayo Bandwidth US Montana Corvallis
216.166.156.0/23 512
0.0%
Zayo Bandwidth US — —
66.62.60.0/24 256
0.0%
Zayo Bandwidth US — —
66.62.74.0/24 256
0.0%
Zayo Bandwidth US — —
66.62.77.0/24 256
3.5%
Zayo Bandwidth US — —
66.62.88.0/24 256
0.0%
Zayo Bandwidth US — —
66.62.90.0/24 256
1.2%
Zayo Bandwidth US Montana Belgrade
66.62.94.0/24 256
0.0%
Zayo Bandwidth US — —
66.62.112.0/24 256
0.0%
Zayo Bandwidth US — —
66.62.120.0/24 256
0.0%
Zayo Bandwidth US — —
66.62.127.0/24 256
0.0%
Zayo Bandwidth US Montana Hamilton
66.62.133.0/24 256
0.0%
Zayo Bandwidth US — —
66.62.147.0/24 256
0.0%
Zayo Bandwidth US — —
66.62.150.0/24 256
0.0%
Zayo Bandwidth US — —
66.62.160.0/24 256
0.4%
Zayo Bandwidth US — —
66.62.167.0/24 256
0.0%
Zayo Bandwidth US — —
66.62.204.0/24 256
1.6%
Zayo Bandwidth US — —
66.62.231.0/24 256
0.0%
Zayo Bandwidth US — —
216.166.134.0/24 256
0.0%
Zayo Bandwidth US — —
216.166.141.0/24 256
24.2%
Zayo Bandwidth US Oregon Boardman
216.166.143.0/24 256
0.0%
Zayo Bandwidth US — —
216.166.149.0/24 256
0.0%
Zayo Bandwidth US Montana Corvallis
216.166.158.0/24 256
0.0%
Zayo Bandwidth US — —

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS19092 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
66.62.228.0/22 21,423 2026-11-13 00:34:46
66.62.200.0/21 17,866 2026-11-13 00:34:53
66.62.176.0/21 16,376 2026-11-13 00:34:43
66.62.128.0/24 16,264 2026-11-13 00:34:43
66.62.0.0/16 15,916 2026-11-13 00:40:38
66.62.168.0/21 15,913 2026-11-13 00:34:46
66.62.227.0/24 15,896 2026-11-13 00:34:43
66.62.160.0/21 15,861 2026-11-13 00:34:46
66.62.88.0/21 15,718 2026-11-13 00:34:43
216.166.128.0/18 14,961 2026-11-13 00:34:38

Frequently Asked Questions

What is AS19092?

AS19092 is an Autonomous System Number assigned to Zayo Bandwidth. An ASN identifies a network that controls a specific set of IP addresses and determines how traffic is routed across the internet via BGP (Border Gateway Protocol).

How many IP addresses does AS19092 announce?

AS19092 announces 69.4K IPv4 addresses distributed across 64 routed CIDR prefixes. The network is registered in United States.

Who operates AS19092?

AS19092 is operated by Zayo Bandwidth. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.

What country is AS19092 registered in?

AS19092 is registered in United States. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-11-13 01:24:05 UTC
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