HTTPfy

AS12163 Amherst Holdings LLC

AMHERST-HOLDINGS - Amherst Holdings LLC · registered in the United States

IPv4 addresses5122 prefixes · <0.001% of announced IPv4
Rank in United States#10,660largest network in US by IPv4 space, of 18,338 · <0.01% of US
Rank worldwide#49,755of 79,396 networks with IPv4
IPv6noneno IPv6 routes announced
CountryUnited States18,679 ASNs registered there

IPv4 prefixes

All 2 prefixes, in address order.

  • 192.159.91.0/24
  • 198.54.90.0/24

Similar-sized networks in United States

ASNNameIPv4 addresses
AS12120#10657 AAO-AIO - Amphenol Corp512
AS12128#10658 ITS-HYDERABAD - Refinitiv US LLC512
AS12158#10659 ILLUMINA - ILLUMINA, INC.512
AS12168#10661 DANAONMISSIONBAY-GUEST-INTERNET - The Dana On Mission Bay512
AS12184#10662 FORRESTER-RESEARCH - Forrester Research512
AS12193#10663 IMAGINE-COMMUNICATIONS - IMAGINE COMMUNICATIONS512

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