AS40668 Fenwal, Inc.

FENWAL-INCORPORATED - Fenwal, Inc. · registered in the United States

IPv4 addresses5121 prefixes · <0.001% of announced IPv4

Rank in United States#11,577largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#51,424of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryUnited States18,679 ASNs registered there

Open AS40668 in ASN lookup Look up an IP in this network (208.88.0.1) All networks in United States

IPv4 prefixes

All 1 prefix, in address order.

208.88.0.0/23

Similar-sized networks in United States

ASNNameIPv4 addresses

AS40632#11574 FGLIFE-COLO1 - Fidelity & Guaranty Life512

AS40639#11575 KORBELINC - F Korbel & Bros Inc512

AS40666#11576 SABIC-INNOVATIVE-PLASTICS-US-LLC - SABIC INNOVATIVE PLASTICS US, LLC512

AS40686#11578 HBK-ROSEWOOD - HBK Services LLC512

AS40710#11579 CLC-98-ILLINOIS - College of Lake County512

AS40711#11580 INTERACTIVE-CHIC - Interactive Brokers LLC512

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