AS19821 ALCOHOL COUNTERMEASURE SYSTEMS CORP

ACS-CORP - ALCOHOL COUNTERMEASURE SYSTEMS CORP · registered in Canada

IPv4 addresses2561 prefixes · <0.001% of announced IPv4

Rank in Canada#1,319largest network in CA by IPv4 space, of 1,575 · <0.01% of CA

Rank worldwide#64,066of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryCanada1,622 ASNs registered there

Open AS19821 in ASN lookup Look up an IP in this network (24.244.253.1) All networks in Canada

IPv4 prefixes

All 1 prefix, in address order.

24.244.253.0/24

Similar-sized networks in Canada

ASNNameIPv4 addresses

AS19502#1316 SLICC-01 - SLICC Internet256

AS19608#1317 CANADIAN-BLOOD-SERVICES - Canadian Blood Services256

AS19614#1318 JUSTENERGY - Just Energy (U.S.) Corp.256

AS19968#1320 MAG-AS - Mark Anthony Group Inc.256

AS20045#1321 TORHYDRO-CORP - Toronto Hydro Electric System Limited256

AS20371#1322 APSIS - Apsis Communications Inc256

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