AS6461 Zayo Bandwidth

ZAYO-6461 - Zayo Bandwidth · registered in the United States

IPv4 addresses1,596,6721,176 prefixes · 0.051% of announced IPv4

Rank in United States#67largest network in US by IPv4 space, of 18,338 · 0.12% of US

Rank worldwide#242of 79,396 networks with IPv4

IPv64 x /32 (266,218 x /48)112 prefixes

CountryUnited States18,679 ASNs registered there

Open AS6461 in ASN lookup Look up an IP in this network (23.139.176.1) All networks in United States

IPv4 prefixes

First 500 of 1,176 prefixes, in address order.

23.139.176.0/24
31.99.0.0/18
45.33.128.0/20
45.74.7.0/24
45.74.57.0/24
45.74.59.0/24
45.132.180.0/24
50.115.24.0/24
63.208.55.0/24
63.249.63.0/24
64.56.211.0/24
64.124.0.0/23
64.124.2.0/24
64.124.4.0/22
64.124.9.0/24
64.124.10.0/23
64.124.12.0/24
64.124.14.0/23
64.124.16.0/20
64.124.32.0/21
64.124.40.0/22
64.124.44.0/23
64.124.46.0/24
64.124.48.0/21
64.124.57.0/24
64.124.58.0/23
64.124.60.0/22
64.124.64.0/23
64.124.66.0/24
64.124.68.0/23
64.124.71.0/24
64.124.72.0/21
64.124.80.0/24
64.124.82.0/23
64.124.84.0/22
64.124.88.0/21
64.124.97.0/24
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64.124.102.0/23
64.124.104.0/23
64.124.106.0/24
64.124.108.0/22
64.124.112.0/22
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64.124.119.0/24
64.124.120.0/22
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64.124.126.0/24
64.124.128.0/22
64.124.133.0/24
64.124.135.0/24
64.124.137.0/24
64.124.138.0/23
64.124.140.0/24
64.124.142.0/24
64.124.144.0/21
64.124.152.0/22
64.124.157.0/24
64.124.159.0/24
64.124.160.0/20
64.124.176.0/24
64.124.178.0/23
64.124.180.0/22
64.124.184.0/23
64.124.187.0/24
64.124.188.0/24
64.124.191.0/24
64.124.192.0/21
64.124.200.0/22
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64.124.206.0/24
64.124.208.0/22
64.124.212.0/24
64.124.214.0/23
64.124.216.0/22
64.124.220.0/24
64.124.222.0/23
64.124.224.0/22
64.124.228.0/23
64.124.230.0/24
64.124.232.0/21
64.124.240.0/20
64.125.0.0/19
64.125.32.0/21
64.125.40.0/22
64.125.45.0/24
64.125.46.0/23
64.125.48.0/20
64.125.64.0/23
64.125.67.0/24
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64.125.99.0/24
64.125.100.0/22
64.125.104.0/24
64.125.107.0/24
64.125.108.0/23
64.125.110.0/24
64.125.112.0/23
64.125.115.0/24
64.125.116.0/22
64.125.120.0/21
64.125.128.0/22
64.125.132.0/24
64.125.136.0/21
64.125.144.0/20
64.125.168.0/24
64.125.170.0/23
64.125.172.0/22
64.125.176.0/20
64.125.192.0/19
64.125.224.0/23
64.125.226.0/24
64.125.228.0/24
64.125.230.0/23
64.125.232.0/22
64.125.237.0/24
64.125.238.0/24
64.125.240.0/21
64.125.248.0/23
64.125.252.0/22
66.46.0.0/20
66.46.16.0/21
66.46.24.0/23
66.46.27.0/24
66.46.28.0/22
66.46.32.0/21
66.46.40.0/22
66.46.44.0/23
66.46.48.0/20
66.46.64.0/19
66.46.96.0/22
66.46.100.0/23
66.46.103.0/24
66.46.104.0/21
66.46.112.0/20
66.46.128.0/19
66.46.160.0/20
66.46.184.0/21
66.46.192.0/23
66.46.195.0/24
66.46.197.0/24
66.46.198.0/23
66.46.200.0/21
66.46.208.0/21
66.46.217.0/24
66.46.218.0/23
66.46.220.0/24
66.46.222.0/23
66.46.224.0/19
66.62.132.0/24
66.62.161.0/24
66.62.182.0/23
66.62.230.0/24
66.62.238.0/23
66.62.240.0/22
66.62.244.0/23
66.213.128.0/24
66.213.130.0/23
66.213.132.0/22
66.213.136.0/23
66.213.139.0/24
66.213.140.0/22
66.213.144.0/20
67.136.93.0/24
67.208.224.0/21
67.208.232.0/23
67.208.235.0/24
67.208.236.0/22
67.208.240.0/20
67.213.172.0/22
67.230.208.0/20
68.170.192.0/21
68.170.200.0/23
68.170.203.0/24
68.170.204.0/22
69.147.0.0/24
69.147.2.0/24
69.147.4.0/24
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69.147.8.0/21
69.147.44.0/22
69.147.52.0/22
69.166.105.0/24
69.195.0.0/20
70.98.210.0/24
71.19.160.0/21
71.19.168.0/23
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71.19.175.0/24
71.19.176.0/21
71.19.184.0/22
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72.5.65.0/24
72.10.64.0/24
72.10.68.0/22
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72.10.80.0/22
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72.10.91.0/24
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72.20.196.0/22
72.20.204.0/22
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72.20.224.0/19
74.80.190.0/24
74.114.161.0/24
74.114.162.0/23
74.114.164.0/22
74.212.179.0/24
74.213.234.0/23
74.216.0.0/18
74.216.64.0/19
74.216.96.0/21
74.216.104.0/22
74.216.109.0/24
74.216.110.0/24
74.216.112.0/20
74.216.128.0/19
74.216.160.0/20
74.216.179.0/24
74.216.180.0/22
74.216.184.0/21
74.216.192.0/20
74.216.208.0/23
74.216.212.0/22
74.216.216.0/21
74.216.224.0/21
74.216.232.0/23
74.216.235.0/24
74.216.236.0/22
74.216.240.0/20
76.78.123.0/24
79.141.32.0/22
79.141.36.0/24
79.141.38.0/23
79.141.40.0/21
79.183.247.0/24
82.98.192.0/23
82.98.195.0/24
82.98.196.0/23
82.98.198.0/24
82.98.232.0/21
82.98.240.0/20
91.92.240.0/22
91.208.131.0/24
94.31.0.0/23
94.31.2.0/24
94.31.4.0/22
94.31.8.0/21
94.31.16.0/21
94.31.24.0/22
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94.31.61.0/24
94.31.62.0/23
94.154.35.0/24
94.154.40.0/24
94.154.46.0/24
95.134.53.0/24
95.134.104.0/21
97.107.64.0/23
103.139.130.0/23
104.36.8.0/21
104.140.204.0/24
104.145.0.0/20
104.224.2.0/24
104.251.96.0/20
107.178.32.0/20
128.177.0.0/23
128.177.4.0/22
128.177.8.0/22
128.177.12.0/24
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128.177.24.0/22
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128.177.61.0/24
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128.177.92.0/24
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128.177.112.0/21
128.177.120.0/22
128.177.124.0/24
128.177.126.0/23
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128.177.130.0/23
128.177.132.0/23
128.177.139.0/24
128.177.140.0/22
128.177.144.0/20
128.177.162.0/23
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128.177.176.0/23
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128.177.180.0/24
128.177.182.0/23
128.177.184.0/23
128.177.187.0/24
128.177.188.0/22
128.177.192.0/18
129.192.170.0/23
129.192.189.0/24
130.12.180.0/24
141.193.226.0/24
142.194.0.0/16
144.83.0.0/16
146.19.125.0/24
149.64.226.0/24
158.94.208.0/22
159.18.0.0/20
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159.18.128.0/24
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162.223.4.0/22
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162.251.150.0/24
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164.90.20.0/24
167.217.0.0/16
168.102.128.0/23
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168.102.132.0/24
168.102.135.0/24
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168.254.5.0/24
170.81.198.0/24
170.130.36.0/23
170.130.60.0/23
172.110.64.0/22
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173.44.196.0/23
173.46.64.0/21
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173.213.70.0/23
173.241.208.0/21
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176.46.143.0/24
176.46.146.0/24
178.16.52.0/22
184.94.0.0/23
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184.94.120.0/21
185.75.80.0/24
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192.4.2.0/24
192.40.232.0/21
192.64.252.0/24
192.75.172.0/24
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192.197.156.0/24
193.28.62.0/23
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193.34.72.0/22
193.160.88.0/22
198.60.184.0/22
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198.100.128.0/21
198.136.150.0/24
199.5.171.0/24
199.43.120.0/24
199.85.120.0/22
199.87.52.0/22
199.96.32.0/22
199.96.40.0/22

IPv6 prefixes

All 112 prefixes.

2001:438::/43
2001:438:20::/44
2001:438:30::/45
2001:438:3a::/47
2001:438:3c::/46
2001:438:40::/45
2001:438:48::/47
2001:438:4b::/48
2001:438:4c::/46
2001:438:50::/44
2001:438:60::/44
2001:438:70::/45
2001:438:78::/46
2001:438:7c::/48
2001:438:7e::/47
2001:438:80::/41
2001:438:100::/40
2001:438:200::/39
2001:438:400::/38
2001:438:800::/37
2001:438:1000::/36
2001:438:2000::/35
2001:438:4000::/34
2001:438:8000::/43
2001:438:8020::/47
2001:438:8023::/48
2001:438:8024::/46
2001:438:8028::/45
2001:438:8030::/44
2001:438:8040::/46
2001:438:8044::/47
2001:438:8047::/48
2001:438:8048::/45
2001:438:8050::/44
2001:438:8060::/43
2001:438:8080::/41
2001:438:8100::/40
2001:438:8200::/39
2001:438:8400::/38
2001:438:8800::/37
2001:438:9000::/36
2001:438:a000::/35
2001:438:c000::/34
2001:4c8::/36
2001:4c8:1000::/45
2001:4c8:1009::/48
2001:4c8:100a::/47
2001:4c8:100c::/46
2001:4c8:1010::/46
2001:4c8:1014::/48
2001:4c8:1016::/47
2001:4c8:1018::/47
2001:4c8:101d::/48
2001:4c8:101f::/48
2001:4c8:1021::/48
2001:4c8:1024::/47
2001:4c8:1026::/48
2001:4c8:1028::/47
2001:4c8:102b::/48
2001:4c8:102c::/46
2001:4c8:1030::/44
2001:4c8:1040::/42
2001:4c8:1080::/46
2001:4c8:1084::/48
2001:4c8:1086::/47
2001:4c8:1088::/45
2001:4c8:1090::/48
2001:4c8:1092::/47
2001:4c8:1095::/48
2001:4c8:1096::/47
2001:4c8:1098::/48
2001:4c8:109a::/48
2001:4c8:109c::/47
2001:4c8:109e::/48
2001:4c8:10a0::/48
2001:4c8:10a2::/47
2001:4c8:10a4::/46
2001:4c8:10a8::/45
2001:4c8:10b0::/44
2001:4c8:10c0::/43
2001:4c8:10e0::/44
2001:4c8:10f0::/45
2001:4c8:10f8::/46
2001:4c8:10fc::/48
2001:4c8:10ff::/48
2001:4c8:1100::/45
2001:4c8:1109::/48
2001:4c8:110a::/48
2001:4c8:110b::/48
2001:4c8:110c::/46
2001:4c8:1111::/48
2001:4c8:1112::/47
2001:4c8:1114::/46
2001:4c8:1118::/45
2001:4c8:1120::/43
2001:4c8:1140::/42
2001:4c8:1180::/41
2001:4c8:1200::/39
2001:4c8:1400::/38
2001:4c8:1800::/37
2001:4c8:2000::/35
2001:4c8:4000::/34
2001:4c8:8000::/33
2001:df0:7c80::/48
2001:1b70:b3::/48
2602:807:400c::/48
2602:fdbe::/36
2604:b040:b::/48
2604:e500::/32
2607:c200:1106::/48
2800:870:1002::/48
2a00:16f8::/32

Other ASNs named Zayo Bandwidth

13 other networks use the same organisation name; together with AS6461 they announce 2,533,120 IPv4 addresses.

ASNNameIPv4 addresses

AS11686ZAYO-ENA-11686 - Zayo Bandwidth US734,720

AS19092360NETWORKS-US - Zayo Bandwidth US69,376

AS32703IFN-NET - Zayo Bandwidth US34,560

AS4997AFS-WEST - Zayo Bandwidth US22,784

AS15290ZAYO-CAN-15290 - Zayo Bandwidth US20,736

AS16503ZAYO-16503 - Zayo Bandwidth US20,224

AS17025ZAYO-CUSTOMER-17025 - Zayo Bandwidth US14,848

AS13555EAGLE-NET-ALLIANCE - Zayo Bandwidth US8,704

AS33321ZAYO-33321 - Zayo Bandwidth US3,840

AS22969AFS-ATL - Zayo Bandwidth US2,816

AS11359RMCNEVADA - Zayo Bandwidth US2,304

AS6401ZAYO-CAN-6401 - Zayo Bandwidth US1,280

AS19158ZAYOB-19158 - Zayo Bandwidth US256

Similar-sized networks in United States

ASNNameIPv4 addresses

AS4181#64 TDS-AS - TDS TELECOM1,806,592

AS33652#65 CMCS - Comcast Cable Communications, LLC1,759,744

AS20214#66 COMCAST-20214 - Comcast Cable Communications, LLC1,720,832

AS7385#68 ABUL-14-7385 - Allstream Business US, LLC1,594,880

AS27064#69 DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD)1,594,112

AS7016#70 CCCH-3 - Comcast Cable Communications, LLC1,577,984

IP-to-ASN data: iptoasn.com (public domain). Snapshot downloaded 2026-11-11, refreshed daily. Ranges are what each network announces in BGP, not registry allocations. Data sources