AS18721 ACD/Labs

ACDLABS-AS - ACD/Labs · registered in Canada

IPv4 addresses2561 prefixes · <0.001% of announced IPv4

Rank in Canada#1,312largest network in CA by IPv4 space, of 1,575 · <0.01% of CA

Rank worldwide#63,944of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryCanada1,622 ASNs registered there

Open AS18721 in ASN lookup Look up an IP in this network (204.153.135.1) All networks in Canada

IPv4 prefixes

All 1 prefix, in address order.

204.153.135.0/24

Similar-sized networks in Canada

ASNNameIPv4 addresses

AS17188#1309 LILENT01 - Lilani Enterprises Inc.256

AS17241#1310 QUANTALGO - Quantalgo Ventures, Inc.256

AS18638#1311 DHDC-CA - Datahive.ca256

AS19041#1313 MHI-LTD - Manitoba Hydro International LTD256

AS19297#1314 WEATHERCITY - WeatherCity Services256

AS19369#1315 SMARTCS - Smart Communication System 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