They seem to be a reseller or something.
On this webpage from AEI's site, @contact.net is mentionend.
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web.aei.ca/support/voip_ ··· _en.html The AEI Internet Subscriber (___@aei.ca, ___@axess.com, ___@contact.net, ___@iq.ca) is the account, registered for Internet Services (DialUp, HighSpeed). This account may have the AEI Voice Subscriber sub-accounts. Logging on as AEI Internet Subscriberyou can manage all sub-accounts.