AS403003 FiberNet

FIBERNET-COMMUNICATIONS-16 - FiberNet · registered in the United States

IPv4 addresses1,2802 prefixes · <0.001% of announced IPv4

Rank in United States#7,749largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#29,665of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryUnited States18,679 ASNs registered there

Open AS403003 in ASN lookup Look up an IP in this network (23.166.20.1) All networks in United States

IPv4 prefixes

All 2 prefixes, in address order.

23.166.20.0/24
38.125.228.0/22

Other ASNs named FiberNet

2 other networks use the same organisation name; together with AS403003 they announce 3,584 IPv4 addresses.

ASNNameIPv4 addresses

AS265629AS265629 - FIBERNET EC1,280

AS264654AS264654 - FIBERNET CR1,024

Similar-sized networks in United States

ASNNameIPv4 addresses

AS402374#7746 DELCAMBRE-CO - Delcambre1,280

AS402687#7747 FAL - fal1,280

AS402732#7748 SMITHS - SMITH'S1,280

AS394435#7750 ACLIBRARY - Alameda County Library1,126

AS394230#7751 CDCK - Civilized Discourse Construction Kit, Inc.1,120

AS275#7752 NTTA-275 - NTT America, Inc.1,090

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