AS23233 Fenwick & West, LLP.

FENWICK - Fenwick & West, LLP. · registered in the United States

IPv4 addresses7683 prefixes · <0.001% of announced IPv4

Rank in United States#9,509largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#44,013of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryUnited States18,679 ASNs registered there

Open AS23233 in ASN lookup Look up an IP in this network (8.39.136.1) All networks in United States

IPv4 prefixes

All 3 prefixes, in address order.

8.39.136.0/24
63.197.243.0/24
216.234.137.0/24

Similar-sized networks in United States

ASNNameIPv4 addresses

AS23079#9506 ARVEST-AS1 - Arvest Bank Operations768

AS23095#9507 SHARP - SHARP HealthCare768

AS23097#9508 COHEN-STEERS - COHEN & STEERS CAPITAL MGMT., INC.768

AS23249#9510 AVECTRA - Avectra768

AS23284#9511 COMPL-AS - Complete Genomics Inc.768

AS23348#9512 VERIFONE-US3-US4-US5 - VeriFone Inc.768

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