AS33321 Zayo Bandwidth

ZAYO-33321 - Zayo Bandwidth · registered in the United States

IPv4 addresses3,84010 prefixes · <0.001% of announced IPv4

Rank in United States#4,971largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#16,763of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryUnited States18,679 ASNs registered there

Open AS33321 in ASN lookup Look up an IP in this network (128.177.93.1) All networks in United States

IPv4 prefixes

All 10 prefixes, in address order.

128.177.93.0/24
209.124.160.0/23
209.124.162.0/24
209.124.163.0/24
209.124.164.0/23
209.124.166.0/24
209.124.167.0/24
209.124.168.0/22
209.124.172.0/24
209.124.174.0/24

Other ASNs named Zayo Bandwidth

13 other networks use the same organisation name; together with AS33321 they announce 2,533,120 IPv4 addresses.

ASNNameIPv4 addresses

AS6461ZAYO-6461 - Zayo Bandwidth US1,596,672

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

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

AS27640#4968 GIGASNET-AS - GIGAS HOSTING USA, LLC3,840

AS29987#4969 SINFONY6 - Sinfony6, LLC3,840

AS32667#4970 7-ELEVEN-NETWORK - 7-Eleven, Inc.3,840

AS35874#4972 KRESA-ASN - Kalamazoo RESA3,840

AS35932#4973 SPLN-ASN-2020 - Splash Wireless Internet, LLC3,840

AS36234#4974 COREDIAL-228 - CoreDial, LLC3,840

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