AS11686 Zayo Bandwidth

ZAYO-ENA-11686 - Zayo Bandwidth · registered in the United States

IPv4 addresses734,720192 prefixes · 0.023% of announced IPv4

Rank in United States#129largest network in US by IPv4 space, of 18,338 · 0.05% of US

Rank worldwide#450of 79,396 networks with IPv4

IPv61 x /32 (65,792 x /48)16 prefixes

CountryUnited States18,679 ASNs registered there

Open AS11686 in ASN lookup Look up an IP in this network (38.29.170.1) All networks in United States

IPv4 prefixes

All 192 prefixes, in address order.

38.29.170.0/24
72.162.136.0/22
96.4.0.0/20
96.4.16.0/20
96.4.32.0/19
96.4.64.0/18
96.4.128.0/19
96.4.160.0/20
96.4.176.0/20
96.4.192.0/18
96.5.0.0/21
96.5.8.0/23
96.5.10.0/23
96.5.12.0/22
96.5.16.0/20
96.5.32.0/19
96.5.64.0/19
96.5.96.0/20
96.5.112.0/22
96.5.116.0/23
96.5.118.0/23
96.5.120.0/21
96.5.128.0/22
96.5.132.0/24
96.5.133.0/24
96.5.134.0/23
96.5.136.0/21
96.5.144.0/20
96.5.160.0/20
96.5.176.0/21
96.5.184.0/21
96.5.192.0/19
96.5.224.0/20
96.5.240.0/23
96.5.242.0/23
96.5.244.0/22
96.5.248.0/21
165.138.0.0/21
165.138.8.0/23
165.138.10.0/23
165.138.12.0/22
165.138.16.0/20
165.138.32.0/20
165.138.48.0/21
165.138.56.0/24
165.138.57.0/24
165.138.58.0/23
165.138.60.0/22
165.138.64.0/20
165.138.80.0/22
165.138.84.0/23
165.138.86.0/24
165.138.87.0/24
165.138.88.0/24
165.138.89.0/24
165.138.90.0/24
165.138.91.0/24
165.138.92.0/22
165.138.96.0/20
165.138.112.0/21
165.138.120.0/23
165.138.122.0/23
165.138.124.0/22
165.138.128.0/21
165.138.136.0/23
165.138.138.0/24
165.138.139.0/24
165.138.140.0/22
165.138.144.0/20
165.138.160.0/22
165.138.164.0/23
165.138.166.0/23
165.138.168.0/23
165.138.170.0/23
165.138.172.0/22
165.138.176.0/20
165.138.192.0/18
165.139.0.0/19
165.139.32.0/24
165.139.33.0/24
165.139.34.0/23
165.139.36.0/22
165.139.40.0/22
165.139.44.0/24
165.139.45.0/24
165.139.46.0/23
165.139.48.0/20
165.139.64.0/18
165.139.128.0/22
165.139.132.0/23
165.139.134.0/23
165.139.136.0/21
165.139.144.0/21
165.139.152.0/22
165.139.156.0/23
165.139.158.0/23
165.139.160.0/19
165.139.192.0/21
165.139.200.0/23
165.139.202.0/24
165.139.203.0/24
165.139.204.0/22
165.139.208.0/22
165.139.212.0/22
165.139.216.0/21
165.139.224.0/19
168.213.254.0/23
168.254.0.0/22
168.254.4.0/24
168.254.6.0/23
168.254.8.0/21
168.254.16.0/20
168.254.32.0/20
168.254.48.0/23
168.254.50.0/24
168.254.51.0/24
168.254.52.0/22
168.254.56.0/21
168.254.64.0/18
168.254.128.0/17
170.180.0.0/17
170.180.128.0/19
170.180.160.0/23
170.180.162.0/23
170.180.164.0/22
170.180.168.0/21
170.180.176.0/21
170.180.184.0/22
170.180.188.0/23
170.180.190.0/24
170.180.191.0/24
170.180.192.0/18
170.181.0.0/16
170.182.0.0/15
170.185.0.0/20
170.185.16.0/23
170.185.18.0/23
170.185.20.0/22
170.185.24.0/21
170.185.32.0/19
170.185.64.0/20
170.185.80.0/22
170.185.84.0/23
170.185.86.0/24
170.185.87.0/24
170.185.88.0/21
170.185.96.0/20
170.185.112.0/22
170.185.116.0/23
170.185.118.0/24
170.185.119.0/24
170.185.120.0/21
170.185.128.0/23
170.185.130.0/24
170.185.131.0/24
170.185.132.0/22
170.185.136.0/21
170.185.144.0/22
170.185.148.0/22
170.185.152.0/23
170.185.154.0/23
170.185.156.0/22
170.185.160.0/22
170.185.164.0/23
170.185.166.0/23
170.185.168.0/21
170.185.176.0/21
170.185.184.0/24
170.185.185.0/24
170.185.186.0/23
170.185.188.0/22
170.185.192.0/21
170.185.200.0/23
170.185.202.0/24
170.185.203.0/24
170.185.204.0/22
170.185.208.0/20
170.185.224.0/23
170.185.226.0/23
170.185.228.0/22
170.185.232.0/21
170.185.240.0/21
170.185.248.0/23
170.185.250.0/24
170.185.251.0/24
170.185.252.0/22
204.63.176.0/21
204.63.240.0/21
204.86.168.0/21
204.86.176.0/21
207.191.176.0/20
208.119.0.0/16

IPv6 prefixes

All 16 prefixes.

2602:297::/40
2610:128::/36
2610:128:1000::/39
2610:128:1200::/40
2610:128:1300::/40
2610:128:1400::/38
2610:128:1800::/37
2610:128:2000::/35
2610:128:4000::/34
2610:128:8000::/36
2610:128:9000::/38
2610:128:9400::/39
2610:128:9600::/39
2610:128:9800::/37
2610:128:a000::/35
2610:128:c000::/34

Other ASNs named Zayo Bandwidth

13 other networks use the same organisation name; together with AS11686 they announce 2,533,120 IPv4 addresses.

ASNNameIPv4 addresses

AS6461ZAYO-6461 - Zayo Bandwidth US1,596,672

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

AS8103#126 STATE-OF-FLA - Florida Department of Management Services - Division of Telecommunications772,352

AS243#127 HARRIS-ATD-AS - L3Harris Technologies, Inc.749,824

AS2572#128 MORENET - University of Missouri - dba the Missouri Research and Education Network (MOREnet)743,552

AS2687#130 ATGS-MMD-AS - AT&T Enterprises, LLC727,040

AS6325#131 ILLINOIS-CENTURY - Illinois Century Network725,504

AS14265#132 US-TELEPACIFIC - TPx Communications715,776

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