AS19599 COPYRIGHT CLEARANCE CENTER

IPv4 addresses5122 prefixes · <0.001% of announced IPv4

Rank in United States#10,921largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#50,172of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryUnited States18,679 ASNs registered there

Open AS19599 in ASN lookup Look up an IP in this network (12.189.148.1) All networks in United States

IPv4 prefixes

All 2 prefixes, in address order.

12.189.148.0/24
50.203.108.0/24

Similar-sized networks in United States

ASNNameIPv4 addresses

AS19511#10918 ELECTROLUX-NA - Electrolux Home Products, Inc.512

AS19514#10919 MAGTEK-HQ - MagTek Inc.512

AS19542#10920 PLICO - Protective Life Corporation512

AS19622#10922 GHI301PENOBSCOT - Genomic Health, Inc.512

AS19636#10923 FORMFACTOR - FORMFACTOR, INC512

AS19652#10924 VACATION-EXPRESS - VACATION EXPRESS512

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