This AS is not currently used to announce prefixes in the global routing table, nor is it used as a visible transit AS.
whois: 402609
IANA has recorded AS3974 as originally allocated by
/usr/bin/whois -h jwhois.apnic.netr "AS3974\n
#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#
ASNumber: 3974
ASName: REZONET
ASHandle: AS3974
RegDate: 1994-11-04
Updated: 1994-11-04
Ref: https://rdap.arin.net/registry/autnum/3974
OrgName: Rezonet
OrgId: REZONE
Address: Pubnix
Address: 5867 de la roche
City: Montreal
StateProv: QC
PostalCode: H2S 2C8
Country: CA
RegDate: 1994-11-04
Updated: 2012-10-10
Ref: https://rdap.arin.net/registry/entity/REZONE
OrgTechHandle: PG118-ARIN
OrgTechName: Gosselin, Pascal Mr
OrgTechPhone: +1-514-861-1360
OrgTechEmail: pascal@mlink.net
OrgTechRef: https://rdap.arin.net/registry/entity/PG118-ARIN
OrgAbuseHandle: PG118-ARIN
OrgAbuseName: Gosselin, Pascal Mr
OrgAbusePhone: +1-514-861-1360
OrgAbuseEmail: pascal@mlink.net
OrgAbuseRef: https://rdap.arin.net/registry/entity/PG118-ARIN
RTechHandle: PG118-ARIN
RTechName: Gosselin, Pascal Mr
RTechPhone: +1-514-861-1360
RTechEmail: pascal@mlink.net
RTechRef: https://rdap.arin.net/registry/entity/PG118-ARIN
#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#