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Autonomous System

AS11686

Zayo Bandwidth

Announced IPs
734,720
CIDR prefixes
21
ASN
AS11686

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 v1.2.0 — 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
telecommunications company

Network profile

Source: PeeringDB →
Network type Educational/Research
Traffic level 300-500Gbps
Geographic scope North America
Traffic ratio Heavy Inbound
Peering policy Open
IRR record AS-ENA

Present at 8 internet exchanges: Digital Realty Atlanta, SIX Seattle: MTU 1500, Equinix Chicago, Equinix Ashburn, NashIX, FL-IX, Equinix Dallas, Boston Internet Exchange

AS11686 — global IP footprint

Cities where AS11686 has measurable IPv4 allocation. Click any dot to open that city's page. Size and color scale with IP count.

View on 3D globe →

Top CIDR ranges

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS11686 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
170.185.21.0/24 68,314 2026-09-10 15:28:36
170.185.189.0/24 54,331 2026-09-10 15:28:36
170.185.116.0/24 53,132 2026-09-10 15:28:36
170.185.81.0/24 48,039 2026-09-10 15:28:36
170.185.45.0/24 40,732 2026-09-10 15:28:36
170.185.196.0/24 40,569 2026-09-10 15:28:36
170.185.71.0/24 39,895 2026-09-10 15:28:36
170.185.72.0/24 39,853 2026-09-10 15:28:36
170.185.102.0/24 38,023 2026-09-10 15:28:36
170.185.79.0/24 37,707 2026-09-10 15:28:36
170.185.44.0/24 34,553 2026-09-10 15:28:36
170.185.117.0/24 34,093 2026-09-10 15:28:36
170.185.49.0/24 33,623 2026-09-10 15:28:36
170.185.162.0/24 33,336 2026-09-10 15:28:36
170.185.171.0/24 33,292 2026-09-10 15:28:36
72.162.136.0/22 31,985 2026-09-10 15:06:55
170.185.113.0/24 31,955 2026-09-10 15:28:36
170.185.39.0/24 31,729 2026-09-10 15:28:36
170.185.122.0/24 31,651 2026-09-10 15:28:36
170.185.111.0/24 31,213 2026-09-10 15:28:36
170.185.164.0/24 31,090 2026-09-10 15:28:36
170.185.170.0/24 30,673 2026-09-10 15:28:36
170.185.106.0/24 30,656 2026-09-10 15:28:36
170.185.105.0/24 30,634 2026-09-10 15:28:36
170.185.219.0/24 30,541 2026-09-10 15:28:36
170.185.136.0/24 30,158 2026-09-10 15:28:36
170.185.51.0/24 29,552 2026-09-10 15:28:36
96.5.160.0/21 29,518 2026-09-10 15:29:05
170.185.183.0/24 29,370 2026-09-10 15:28:36
170.185.112.0/24 29,048 2026-09-10 15:28:36
170.185.100.0/24 28,151 2026-09-10 15:28:36
170.185.184.0/24 27,969 2026-09-10 15:28:36
170.185.46.0/23 27,913 2026-09-10 15:28:36
170.185.179.0/24 27,764 2026-09-10 15:28:36
170.185.178.0/24 27,714 2026-09-10 15:28:36
170.185.63.0/24 27,592 2026-09-10 15:28:36
170.185.56.0/24 27,399 2026-09-10 15:28:36
170.185.54.0/24 27,338 2026-09-10 15:28:36
170.185.29.0/24 27,290 2026-09-10 15:28:36
170.185.57.0/24 26,901 2026-09-10 15:28:36
170.185.169.0/24 26,878 2026-09-10 15:28:36
170.185.98.0/24 26,562 2026-09-10 15:28:36
170.185.76.0/24 26,369 2026-09-10 15:28:36
170.185.138.0/24 26,185 2026-09-10 15:28:36
170.185.214.0/23 26,015 2026-09-10 15:28:36
170.185.22.0/24 25,948 2026-09-10 15:28:36
170.185.36.0/23 25,852 2026-09-10 15:28:36
170.185.174.0/23 25,828 2026-09-10 15:28:36
170.185.144.0/24 25,792 2026-09-10 15:28:36
170.185.123.0/24 25,627 2026-09-10 15:28:36

Showing top 50 of 265 announced prefixes by sample volume.

Frequently Asked Questions

What is AS11686?

AS11686 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 AS11686 announce?

AS11686 announces 734.7K IPv4 addresses distributed across 21 routed CIDR prefixes. The network is registered in United States.

Who operates AS11686?

AS11686 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 AS11686 registered in?

AS11686 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: 2026-09-10 15:24:05 UTC
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