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Autonomous System

AS6461

Zayo Bandwidth

Announced IPs
1,584,896
CIDR prefixes
1,218
ASN
AS6461

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.

57/100
Caution
How this score is built
  • Baseline (neutral) 65
  • Multiple-origin (MOAS) routing anomaly −12
  • Enterprise allocation +4
  • Trust score 57 / 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

⚠ 5 MOAS prefixes — multiple origin ASNs detected

All MOAS anomalies →

A previously stable prefix originated by AS6461 is now also announced by another ASN (MOAS — Multiple-Origin AS), detected from our RIPE RIS collectors. Often benign (anycast, multi-homing, or a recent transfer) — but it can signal a route leak or prefix hijack, so it's worth inspecting.

PrefixOrigin ASNsLast detected (UTC)
199.16.106.0/24 AS174, AS6461 2026-07-18 12:37:44
198.136.150.0/24 AS3356, AS6461 2026-07-18 12:37:44
207.190.143.0/24 AS6461, AS16664 2026-07-17 19:22:38
206.254.231.0/24 AS3354, AS6461 2026-07-17 19:22:38
94.26.95.0/24 AS6461, AS202087 2026-07-17 10:07:34

Network profile

Source: PeeringDB →
Network type NSP
Traffic level 20-50Tbps
Geographic scope Global
Traffic ratio Balanced
Peering policy Restrictive
IRR record AS-MFNX

Present at 46 internet exchanges: LINX LON2, LINX LON1: Main, MegaIX Hamburg, ESpanix Madrid Lower LAN, LINX Scotland: LINX Scotland, Equinix Paris: Equinix IX - PA Metro, AMS-IX, DE-CIX Frankfurt: DE-CIX Frankfurt Peering LAN, Equinix Sydney, MegaIX Frankfurt, …

Web3 footprint

AS6461 hosts 2 observed decentralized-network nodes across 1 network. It’s a neutral signal — it does not affect the reputation score. See the full web3 node map.

AS6461 — global IP footprint

Cities where AS6461 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

CIDRIPsPTR DensityOrganizationCountryStateCity
142.194.0.0/16 65.5K
44.0%
Zayo Bandwidth US
144.83.0.0/16 65.5K
0.0%
Zayo Bandwidth US
167.217.0.0/16 65.5K
0.2%
Zayo Bandwidth US Indiana Indianapolis
142.194.128.0/17 32.8K
0.0%
US
31.99.0.0/18 16.4K
0.0%
Zayo Bandwidth GB
74.216.0.0/18 16.4K
0.0%
Zayo Bandwidth US
128.177.192.0/18 16.4K
44.5%
Zayo Bandwidth US New York New York
142.194.64.0/18 16.4K
0.0%
US
199.164.64.0/18 16.4K
0.8%
Zayo Bandwidth US Florida New Port Richey
207.235.192.0/18 16.4K
0.0%
Zayo Bandwidth US
216.129.0.0/18 16.4K
4.1%
Zayo Bandwidth US
216.191.128.0/18 16.4K
12.0%
Zayo Bandwidth US
64.125.0.0/19 8.2K
45.8%
Zayo Bandwidth US
64.125.192.0/19 8.2K
44.0%
Zayo Bandwidth US Illinois Chicago
66.46.64.0/19 8.2K
88.3%
Zayo Bandwidth US
66.46.128.0/19 8.2K
88.3%
Zayo Bandwidth US
66.46.224.0/19 8.2K
92.2%
Zayo Bandwidth US
72.20.224.0/19 8.2K
0.0%
Zayo Bandwidth US
74.216.64.0/19 8.2K
0.0%
Zayo Bandwidth US
74.216.128.0/19 8.2K
0.0%
Zayo Bandwidth US
142.194.32.0/19 8.2K
0.0%
US
199.212.160.0/19 8.2K
3.0%
Zayo Bandwidth US
204.128.64.0/19 8.2K
0.0%
Zayo Bandwidth US Florida Melbourne
206.222.64.0/19 8.2K
0.7%
Zayo Bandwidth US
207.235.160.0/19 8.2K
0.0%
Zayo Bandwidth US Texas Dallas
209.82.32.0/19 8.2K
7.1%
Zayo Bandwidth US
209.82.64.0/19 8.2K
15.2%
Zayo Bandwidth US
209.133.0.0/19 8.2K
48.1%
Zayo Bandwidth US Texas Hutto
209.152.0.0/19 8.2K
0.0%
Zayo Bandwidth US Texas Richardson
209.153.224.0/19 8.2K
2.1%
Zayo Bandwidth US
216.13.32.0/19 8.2K
11.6%
Zayo Bandwidth US
216.13.160.0/19 8.2K
4.1%
Zayo Bandwidth US
216.13.192.0/19 8.2K
9.5%
Zayo Bandwidth US
216.23.128.0/19 8.2K
5.9%
Zayo Bandwidth US
216.123.32.0/19 8.2K
13.9%
Zayo Bandwidth US
216.123.128.0/19 8.2K
7.0%
Zayo Bandwidth US
216.191.32.0/19 8.2K
9.8%
Zayo Bandwidth US
216.191.64.0/19 8.2K
11.2%
Zayo Bandwidth US
216.191.192.0/19 8.2K
12.1%
Zayo Bandwidth US
216.200.32.0/19 8.2K
78.8%
Zayo Bandwidth US Washington Kent
216.200.96.0/19 8.2K
70.7%
Zayo Bandwidth US Texas McKinney
216.200.192.0/19 8.2K
77.6%
Zayo Bandwidth US
45.33.128.0/20 4.1K
0.0%
Cogent Communications, LLC US California San Jose
64.124.16.0/20 4.1K
71.5%
Zayo Bandwidth US Indiana Bloomington
64.124.240.0/20 4.1K
77.4%
Zayo Bandwidth US
64.125.48.0/20 4.1K
75.6%
Zayo Bandwidth US Florida Wesley Chapel
64.125.112.0/20 4.1K
51.6%
Zayo Bandwidth US New Jersey Somerset
64.125.144.0/20 4.1K
45.9%
Zayo Bandwidth US Minnesota Apple Valley
64.125.176.0/20 4.1K
60.6%
Zayo Bandwidth US Washington Seattle
64.125.208.0/20 4.1K
0.0%
US Oregon Portland
66.46.0.0/20 4.1K
80.5%
Zayo Bandwidth US
66.46.48.0/20 4.1K
96.7%
Zayo Bandwidth US
66.46.112.0/20 4.1K
89.3%
Zayo Bandwidth US
66.46.160.0/20 4.1K
96.2%
Zayo Bandwidth US
66.213.144.0/20 4.1K
0.0%
Zayo Bandwidth US
67.208.240.0/20 4.1K
12.7%
Zayo Bandwidth US Tennessee Nashville
67.230.208.0/20 4.1K
86.0%
Zayo Bandwidth US Colorado Denver
69.195.0.0/20 4.1K
0.0%
Zayo Bandwidth US
74.216.112.0/20 4.1K
11.2%
Zayo Bandwidth US
74.216.160.0/20 4.1K
0.0%
Zayo Bandwidth US
74.216.192.0/20 4.1K
11.2%
Zayo Bandwidth US
74.216.240.0/20 4.1K
11.5%
Zayo Bandwidth US
82.98.240.0/20 4.1K
25.0%
Zayo Bandwidth GB
104.145.0.0/20 4.1K
10.8%
Zayo Bandwidth US
104.251.96.0/20 4.1K
24.2%
Zayo Bandwidth US
107.178.32.0/20 4.1K
0.0%
Zayo Bandwidth US
128.177.64.0/20 4.1K
77.7%
Zayo Bandwidth US Tennessee Memphis
128.177.144.0/20 4.1K
95.0%
Zayo Bandwidth US Massachusetts Brighton
142.194.0.0/20 4.1K
0.0%
US
159.18.0.0/20 4.1K
18.7%
Zayo Bandwidth US
159.18.32.0/20 4.1K
0.0%
Zayo Bandwidth US
159.18.112.0/20 4.1K
0.0%
Zayo Bandwidth US
159.18.224.0/20 4.1K
0.0%
Zayo Bandwidth US
173.241.208.0/20 4.1K
0.3%
Zayo Bandwidth US Michigan Lansing
199.212.176.0/20 4.1K
0.0%
US
206.222.80.0/20 4.1K
0.0%
US
207.181.80.0/20 4.1K
5.2%
Zayo Bandwidth US
207.181.112.0/20 4.1K
21.3%
Zayo Bandwidth US
207.245.192.0/20 4.1K
2.1%
Zayo Bandwidth US
208.184.176.0/20 4.1K
12.8%
Zayo Bandwidth US Texas Boerne
208.184.192.0/20 4.1K
25.3%
Zayo Bandwidth US
208.185.16.0/20 4.1K
86.1%
Zayo Bandwidth US California San Diego
208.185.48.0/20 4.1K
68.9%
Zayo Bandwidth US Colorado Denver
208.185.144.0/20 4.1K
76.8%
Zayo Bandwidth US California Redwood City
208.185.240.0/20 4.1K
81.2%
Zayo Bandwidth US New York New York
209.82.0.0/20 4.1K
4.7%
Zayo Bandwidth US
209.82.32.0/20 4.1K
5.1%
Zayo Bandwidth US
209.82.96.0/20 4.1K
5.9%
Zayo Bandwidth US
209.112.16.0/20 4.1K
2.2%
Zayo Bandwidth US
209.112.32.0/20 4.1K
27.4%
Zayo Bandwidth US
209.133.48.0/20 4.1K
38.9%
Zayo Bandwidth US California Los Angeles
209.133.80.0/20 4.1K
46.9%
Zayo Bandwidth US Wisconsin Milwaukee
209.146.128.0/20 4.1K
20.1%
Zayo Bandwidth US
209.146.240.0/20 4.1K
28.9%
Zayo Bandwidth US
209.153.208.0/20 4.1K
0.2%
Zayo Bandwidth US
209.183.176.0/20 4.1K
43.7%
Zayo Bandwidth US
216.13.16.0/20 4.1K
1.0%
Zayo Bandwidth US
216.13.48.0/20 4.1K
17.5%
Zayo Bandwidth US
216.13.96.0/20 4.1K
2.7%
Zayo Bandwidth US
216.13.144.0/20 4.1K
0.8%
Zayo Bandwidth US

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS6461 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
185.9.212.0/24 46,417 2026-07-15 23:04:19
85.95.43.0/24 38,768 2026-07-14 08:02:50
164.138.83.0/24 37,265 2026-07-18 12:03:49
185.9.214.0/24 30,926 2026-07-15 21:08:12
185.75.80.0/24 26,169 2026-07-15 05:50:28
38.240.166.0/24 20,437 2026-07-13 02:14:02
94.26.99.0/24 20,341 2026-06-26 00:01:30
94.26.98.0/24 20,184 2026-07-16 20:18:31
151.249.79.0/24 18,568 2026-07-07 20:20:29
185.83.148.0/24 17,858 2026-07-17 07:20:07
167.254.229.0/24 16,549 2026-06-22 13:46:51
192.190.168.0/24 15,685 2026-07-14 15:03:15
104.255.130.0/24 14,747 2026-07-13 17:36:59
104.255.131.0/24 14,523 2026-07-04 13:43:35
94.26.97.0/24 12,631 2026-05-31 06:05:58
204.128.127.0/24 12,439 2026-07-18 11:36:00
95.164.96.0/20 10,734 2026-07-18 11:59:38
193.34.74.0/23 10,618 2026-07-18 11:59:38
170.81.198.0/24 10,610 2026-07-18 11:59:38
193.34.72.0/23 10,602 2026-07-18 11:59:38
176.46.146.0/24 10,599 2026-07-18 11:59:38
176.46.143.0/24 10,588 2026-07-18 11:59:38
153.94.61.0/24 10,513 2026-06-28 18:01:34
8.44.139.0/24 10,423 2026-06-22 17:25:06
185.9.213.0/24 10,384 2026-07-10 13:02:11
94.190.197.0/24 10,374 2026-07-14 09:46:59
192.94.120.0/24 10,279 2026-07-18 11:35:27
94.190.196.0/24 10,159 2026-07-08 19:16:15
146.255.104.0/24 10,089 2026-07-06 07:16:05
153.94.62.0/24 9,941 2026-07-02 11:35:46
164.138.84.0/24 9,898 2026-07-18 12:22:50
104.255.134.0/24 9,764 2026-06-28 15:31:20
208.184.64.0/24 9,657 2026-06-12 20:50:30
64.124.188.0/23 9,326 2026-07-18 12:00:03
103.139.130.0/23 9,301 2026-07-18 12:00:03
198.60.184.0/22 9,233 2026-07-18 11:59:59
146.255.107.0/24 8,358 2026-07-17 16:51:20
209.105.164.0/24 8,341 2026-07-18 11:59:56
216.227.5.0/24 8,310 2026-07-18 11:59:56
216.227.120.0/24 8,285 2026-07-18 11:59:56
104.255.129.0/24 8,199 2026-07-12 19:02:56
185.44.249.0/24 8,100 2026-07-10 19:56:43
66.62.182.0/23 8,004 2026-07-18 11:59:38
66.62.132.0/24 7,999 2026-07-18 11:59:38
164.90.20.0/24 7,548 2026-07-18 11:59:38
216.200.188.0/22 7,319 2026-07-18 12:00:03
45.89.212.0/24 6,708 2026-06-10 12:57:31
208.187.29.0/24 6,429 2026-07-18 09:31:23
104.255.135.0/24 6,297 2026-07-17 01:52:23
205.159.43.0/24 6,202 2026-07-18 11:36:00

Showing top 50 of 329 announced prefixes by sample volume.

Frequently Asked Questions

What is AS6461?

AS6461 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 AS6461 announce?

AS6461 announces 1.58M IPv4 addresses distributed across 1,218 routed CIDR prefixes. The network is registered in United States.

Who operates AS6461?

AS6461 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 AS6461 registered in?

AS6461 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: 2026-07-18 12:40:28 UTC
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