AS399206 Associated Computer Systems, Ltd

ASSOCIATED-COMPUTER-SYSTEMS - Associated Computer Systems, Ltd · registered in the United States

IPv4 addresses5122 prefixes · <0.001% of announced IPv4

Rank in United States#12,489largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#58,487of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryUnited States18,679 ASNs registered there

Open AS399206 in ASN lookup Look up an IP in this network (38.100.182.1) All networks in United States

IPv4 prefixes

All 2 prefixes, in address order.

38.100.182.0/24
104.224.3.0/24

Similar-sized networks in United States

ASNNameIPv4 addresses

AS399121#12486 CNB-OF-TEXAS - Citizens National Bank of Texas512

AS399144#12487 SUHSD-INTERNET-2026 - Sequoia Union High School District512

AS399187#12488 COB-MN-US - City of Bloomington512

AS399210#12490 TSAUSWPDCPHX - The Salvation Army512

AS399216#12491 PACIRA-ASN - PACIRA PHARMACEUTICALS, INC.512

AS399221#12492 CONFIE - CONFIE ADMINISTRATIVE SERVICES, INC.512

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