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Autonomous System

AS11079

Zayo Bandwidth

Announced IPs
38,912
CIDR prefixes
34
ASN
AS11079

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 v1.1.0 — a transparent heuristic, not a definitive verdict. How it works →

About Zayo Group

Zayo Group Holdings, Inc. is an American telecommunications company headquartered in Denver, Colorado, with European headquarters in London.

Founded
2007
Headquarters
Denver
Industry
telecommunication company

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
142.236.0.0/18 16.4K
1.6%
Zayo Bandwidth CA
142.236.96.0/19 8.2K
0.0%
Zayo Bandwidth CA
142.236.64.0/21 2.0K
3.2%
Zayo Bandwidth CA
142.236.88.0/21 2.0K
0.0%
Zayo Bandwidth CA
142.236.72.0/22 1.0K
0.0%
Zayo Bandwidth CA
142.236.84.0/22 1.0K
0.0%
Zayo Bandwidth CA
142.236.82.0/23 512
0.0%
Zayo Bandwidth CA
205.193.114.0/23 512
2.7%
Zayo Bandwidth CA
205.193.156.0/23 512
2.9%
Zayo Bandwidth CA
205.193.208.0/23 512
0.8%
Zayo Bandwidth CA Ontario Oakville
142.236.77.0/24 256
0.0%
Zayo Bandwidth CA
142.236.79.0/24 256
0.0%
Zayo Bandwidth CA
142.236.80.0/24 256
0.0%
Zayo Bandwidth CA
157.244.195.0/24 256
1.2%
Zayo Bandwidth CA Ontario Toronto
198.103.36.0/24 256
0.8%
Zayo Bandwidth CA
198.103.89.0/24 256
0.4%
Zayo Bandwidth CA
198.103.134.0/24 256
4.7%
Zayo Bandwidth CA
198.103.140.0/24 256
6.3%
Zayo Bandwidth CA Quebec Montreal
198.103.162.0/24 256
0.0%
Zayo Bandwidth CA
198.103.195.0/24 256
1.6%
Zayo Bandwidth CA
198.103.213.0/24 256
0.0%
Zayo Bandwidth CA
198.103.221.0/24 256
7.4%
Zayo Bandwidth CA
198.103.235.0/24 256
0.0%
Zayo Bandwidth CA
199.84.162.0/24 256
21.1%
Zayo Bandwidth CA Quebec Montreal
204.19.79.0/24 256
0.0%
Zayo Bandwidth CA
205.193.41.0/24 256
14.5%
Zayo Bandwidth CA
205.193.85.0/24 256
0.0%
Zayo Bandwidth CA
205.193.96.0/24 256
5.9%
Zayo Bandwidth CA Alberta Edmonton
205.193.112.0/24 256
35.9%
Zayo Bandwidth CA
205.193.114.0/24 256
0.0%
US
205.193.115.0/24 256
0.0%
CA
205.193.120.0/24 256
12.5%
Zayo Bandwidth CA Prince Edward Island Charlottetown
205.193.149.0/24 256
4.3%
Zayo Bandwidth CA
205.193.167.0/24 256
0.8%
Zayo Bandwidth CA
205.193.204.0/24 256
2.0%
Zayo Bandwidth CA
205.193.240.0/24 256
0.0%
Zayo Bandwidth CA
205.193.41.128/25 128
0.0%
CA
205.193.41.64/26 64
0.0%
CA
205.193.41.32/27 32
0.0%
CA
205.193.41.16/28 16
0.0%
CA
205.193.41.8/29 8
0.0%
CA
205.193.41.0/30 4
0.0%
US
205.193.41.4/30 4
0.0%
CA

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS11079 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
205.193.208.0/24 10,521 2026-07-18 16:27:26
198.103.36.0/24 8,331 2026-07-18 16:32:12
198.103.134.0/24 5,587 2026-07-18 16:27:26
204.19.79.0/24 5,126 2026-07-18 17:15:52
157.244.195.0/24 5,109 2026-07-18 16:32:12
205.193.85.0/24 4,782 2026-07-18 16:27:26
198.103.89.0/24 4,301 2026-07-18 16:27:26
205.193.96.0/24 3,298 2026-07-18 16:32:12
205.193.114.0/24 2,953 2026-07-18 16:32:12
205.193.41.0/24 2,944 2026-07-18 16:32:12
198.103.162.0/24 2,925 2026-07-18 16:32:12
205.193.209.0/24 2,761 2026-07-18 16:32:12
205.193.167.0/24 2,749 2026-07-18 16:32:12
142.236.0.0/17 2,740 2026-07-18 16:27:26
205.193.112.0/24 2,715 2026-07-18 16:27:26
198.103.221.0/24 2,700 2026-07-18 16:27:26
198.103.213.0/24 2,694 2026-07-18 16:27:26
205.193.157.0/24 2,694 2026-07-18 16:27:26
199.84.162.0/24 2,692 2026-07-18 16:27:26
198.103.140.0/24 2,690 2026-07-18 16:27:26
198.103.195.0/24 2,689 2026-07-18 16:27:26
198.103.235.0/24 2,688 2026-07-18 16:27:26
205.193.120.0/24 2,687 2026-07-18 16:27:26
205.193.156.0/24 2,685 2026-07-18 16:27:26
205.193.240.0/24 2,682 2026-07-18 16:27:26
205.193.115.0/24 2,677 2026-07-18 16:27:26
205.193.204.0/24 2,671 2026-07-18 16:27:26
205.193.149.0/24 2,662 2026-07-18 16:27:26

Frequently Asked Questions

What is AS11079?

AS11079 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 AS11079 announce?

AS11079 announces 38.9K IPv4 addresses distributed across 34 routed CIDR prefixes. The network is registered in Canada.

Who operates AS11079?

AS11079 is operated by Zayo Bandwidth. The organization is based in Canada. You can view all IP ranges and related ASNs on the organization page.

What country is AS11079 registered in?

AS11079 is registered in Canada. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-07-18 17:55:31 UTC
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