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Organization

Zayo Bandwidth

IPv4 addresses
2,527,232
CIDR ranges
1,437
Category
enterprise
BGP prefixes announced
951

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

Founded
2007
Headquarters
Denver
Industry
telecommunications company

Operates 6 networks present at 56 internet exchanges with a open peering policy.

Zayo Bandwidth — global IP footprint

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

Countries served by Zayo Bandwidth

Every country where this organization has IPv4 allocations, ranked by IPs held.

ASNs owned by Zayo Bandwidth

ASNNameIPsPrefixesCountry
AS6461 Zayo Bandwidth 1.59M 1,145 US
AS11686 Zayo Bandwidth 734.7K 21 US
AS19092 Zayo Bandwidth 69.4K 64 US
AS32703 Zayo Bandwidth 34.6K 39 US
AS4997 Zayo Bandwidth 22.8K 17 US
AS15290 Zayo Bandwidth 20.7K 72 US
AS16503 Zayo Bandwidth 20.2K 11 US
AS17025 Zayo Bandwidth 14.1K 40 US
AS13555 Zayo Bandwidth 8.7K 11 US
AS33321 Zayo Bandwidth 3.8K 5 US
AS22969 Zayo Bandwidth 2.8K 4 US
AS11359 Zayo Bandwidth 2.3K 2 US
AS6401 Zayo Bandwidth 1.3K 5 US
AS19158 Zayo Bandwidth 256 1 US

Largest CIDR ranges

CIDRIPsPTR DensityASNCountryStateCity
170.180.0.0/14 262.1K
0.0%
AS11686 US — —
96.4.0.0/15 131.1K
83.4%
AS11686 US Tennessee Dover
165.138.0.0/15 131.1K
1.2%
AS11686 US Indiana Delphi
142.194.0.0/16 65.5K
45.5%
AS6461 US — —
144.83.0.0/16 65.5K
0.0%
AS6461 US Maryland Silver Spring
167.217.0.0/16 65.5K
0.2%
AS6461 US Indiana Indianapolis
168.254.0.0/16 65.5K
0.0%
AS11686 US Florida Tampa
170.185.0.0/16 65.5K
0.4%
AS11686 US Kentucky Glasgow
208.119.0.0/16 65.5K
0.3%
AS11686 US Indiana Terre Haute
142.194.128.0/17 32.8K
64.0%
AS6461 US — —
168.254.128.0/17 32.8K
0.0%
AS11686 US Florida Tampa
31.99.0.0/18 16.4K
0.0%
AS6461 GB — —
74.216.0.0/18 16.4K
0.0%
AS6461 US — —
128.177.192.0/18 16.4K
46.3%
AS6461 US New York New York
142.194.64.0/18 16.4K
23.2%
AS6461 US — —
168.254.64.0/18 16.4K
0.0%
AS11686 US Florida Tampa
199.164.64.0/18 16.4K
0.9%
AS6461 US Florida Land O' Lakes
204.128.64.0/18 16.4K
0.0%
AS6461 US Florida Melbourne
207.235.192.0/18 16.4K
0.0%
AS6461 US — —
216.129.0.0/18 16.4K
4.5%
AS6461 US — —
216.191.0.0/18 16.4K
10.3%
AS6461 US — —
216.191.128.0/18 16.4K
15.0%
AS6461 US — —
64.125.0.0/19 8.2K
53.2%
AS6461 US — —
64.125.192.0/19 8.2K
51.5%
AS6461 US Virginia Oakton
66.45.192.0/19 8.2K
0.0%
AS16503 US — —
66.46.64.0/19 8.2K
87.3%
AS6461 US — —
66.46.128.0/19 8.2K
87.6%
AS6461 US — —
66.46.224.0/19 8.2K
91.3%
AS6461 US — —
66.62.0.0/19 8.2K
4.4%
AS19092 US — —
72.20.224.0/19 8.2K
0.0%
AS6461 US — —
74.216.64.0/19 8.2K
0.0%
AS6461 US — —
74.216.128.0/19 8.2K
0.0%
AS6461 US — —
142.194.32.0/19 8.2K
61.2%
AS6461 US — —
143.55.192.0/19 8.2K
0.0%
AS32703 US — —
168.254.32.0/19 8.2K
0.0%
AS11686 US — —
199.212.160.0/19 8.2K
3.3%
AS6461 US — —
206.222.64.0/19 8.2K
1.2%
AS6461 US — —
207.235.160.0/19 8.2K
0.0%
AS6461 US Texas Dallas
209.82.32.0/19 8.2K
12.6%
AS6461 US — —
209.82.64.0/19 8.2K
25.8%
AS6461 US — —
209.133.0.0/19 8.2K
72.9%
AS6461 US Texas Lubbock
209.152.0.0/19 8.2K
0.0%
AS6461 US Texas Wylie
209.153.224.0/19 8.2K
2.8%
AS6461 US — —
216.13.32.0/19 8.2K
12.8%
AS6461 US — —
216.13.160.0/19 8.2K
4.2%
AS6461 US — —
216.13.192.0/19 8.2K
9.8%
AS6461 US — —
216.23.128.0/19 8.2K
6.1%
AS6461 US — —
216.123.32.0/19 8.2K
15.2%
AS6461 US — —
216.123.128.0/19 8.2K
7.5%
AS6461 US — —
216.129.0.0/19 8.2K
5.3%
AS6461 US — —
216.191.64.0/19 8.2K
13.8%
AS6461 US — —
216.191.192.0/19 8.2K
14.7%
AS6461 US — —
216.200.32.0/19 8.2K
97.0%
AS6461 US Washington Arlington
216.200.96.0/19 8.2K
91.4%
AS6461 US Texas McKinney
216.200.192.0/19 8.2K
96.7%
AS6461 US — —
45.33.128.0/20 4.1K
0.0%
AS6461 US California San Jose
64.124.16.0/20 4.1K
82.2%
AS6461 US Indiana Bloomington
64.124.160.0/20 4.1K
79.6%
AS6461 US Colorado Aurora
64.124.240.0/20 4.1K
96.3%
AS6461 US — —
64.125.48.0/20 4.1K
85.0%
AS6461 US Florida Wesley Chapel
64.125.144.0/20 4.1K
54.9%
AS6461 US Minnesota Saint Paul
64.125.176.0/20 4.1K
73.7%
AS6461 US Virginia Petersburg
64.125.208.0/20 4.1K
35.6%
AS6461 US Texas Denison
66.46.0.0/20 4.1K
79.7%
AS6461 US — —
66.46.48.0/20 4.1K
95.2%
AS6461 US — —
66.46.112.0/20 4.1K
88.5%
AS6461 US — —
66.46.160.0/20 4.1K
95.4%
AS6461 US — —
66.62.32.0/20 4.1K
0.7%
AS19092 US — —
66.62.96.0/20 4.1K
1.5%
AS19092 US — —
66.62.208.0/20 4.1K
0.0%
AS19092 US — —
66.213.144.0/20 4.1K
0.0%
AS6461 US — —
67.208.240.0/20 4.1K
25.3%
AS6461 US Tennessee Nashville
67.230.208.0/20 4.1K
98.9%
AS6461 US Colorado Aurora
69.195.0.0/20 4.1K
0.0%
AS6461 US — —
72.20.208.0/20 4.1K
0.0%
AS6461 US Pennsylvania Lancaster
74.216.112.0/20 4.1K
12.3%
AS6461 US — —
74.216.160.0/20 4.1K
0.0%
AS6461 US — —
74.216.192.0/20 4.1K
12.9%
AS6461 US — —
74.216.240.0/20 4.1K
13.3%
AS6461 US — —
82.98.240.0/20 4.1K
25.0%
AS6461 GB — —
104.145.0.0/20 4.1K
10.9%
AS6461 US — —
104.251.96.0/20 4.1K
27.2%
AS6461 US — —
107.178.32.0/20 4.1K
0.0%
AS6461 US — —
128.177.64.0/20 4.1K
79.8%
AS6461 US Georgia Duluth
128.177.144.0/20 4.1K
95.3%
AS6461 US Massachusetts Hingham
142.194.0.0/20 4.1K
1.3%
AS6461 US — —
159.18.0.0/20 4.1K
18.3%
AS6461 US — —
159.18.32.0/20 4.1K
0.0%
AS6461 US — —
159.18.112.0/20 4.1K
0.0%
AS6461 US — —
159.18.224.0/20 4.1K
0.0%
AS6461 US — —
168.254.16.0/20 4.1K
0.0%
AS11686 US — —
199.212.176.0/20 4.1K
0.0%
AS6461 US — —
206.222.80.0/20 4.1K
0.7%
AS6461 US — —
207.181.80.0/20 4.1K
8.2%
AS6461 US — —
207.181.112.0/20 4.1K
30.7%
AS6461 US — —
207.191.176.0/20 4.1K
16.7%
AS11686 US Georgia Peachtree City
207.245.192.0/20 4.1K
2.7%
AS6461 US — —
208.184.176.0/20 4.1K
14.0%
AS6461 US Texas Boerne
208.184.192.0/20 4.1K
27.6%
AS6461 US — —
208.185.16.0/20 4.1K
97.2%
AS6461 US California San Diego

Frequently Asked Questions

How many IP addresses does Zayo Bandwidth own?

Zayo Bandwidth controls 2.53M IPv4 addresses distributed across 1,437 CIDR ranges. The organization is registered in United States.

What ASNs does Zayo Bandwidth operate?

Zayo Bandwidth operates 14 Autonomous Systems. Each ASN represents an independently routed network that Zayo Bandwidth manages for internet traffic delivery.

What countries does Zayo Bandwidth serve?

Zayo Bandwidth has IP address allocations in 13 countries, indicating a multinational network presence for delivering services across these regions.

What type of organization is Zayo Bandwidth?

Zayo Bandwidth is categorized as enterprise. This classification is based on the organization's primary use of its IP address allocations.

Last updated: 2026-10-27 11:24:05 UTC
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