AS53444 ZSCALER, INC.

ZSCALER-SJC - ZSCALER, INC. · registered in the United States

IPv4 addresses5122 prefixes · <0.001% of announced IPv4

Rank in United States#11,691largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#52,345of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryUnited States18,679 ASNs registered there

Open AS53444 in ASN lookup Look up an IP in this network (8.25.203.1) All networks in United States

IPv4 prefixes

All 2 prefixes, in address order.

8.25.203.0/24
199.168.148.0/24

Other ASNs named ZSCALER, INC.

2 other networks use the same organisation name; together with AS53444 they announce 630,016 IPv4 addresses.

ASNNameIPv4 addresses

AS22616ZSCALER-SJC1 - ZSCALER, INC. US487,936

AS53813ZSCALER-INC - ZSCALER, INC. US141,568

Similar-sized networks in United States

ASNNameIPv4 addresses

AS53381#11688 WAGWEB - Wagner-Weber Associates, Inc.512

AS53393#11689 LGCNS-AS2 - LG CNS America Inc.512

AS53434#11690 SRI-INTERNATIONAL-PRINCETON - SRI International512

AS53451#11692 NETX-INTERNET - NetX Internet, LLC.512

AS53482#11693 MKMG - CareMount Medical, P.C.512

AS53483#11694 RSP - ReSource Pro, 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