This AS is not currently used to announce prefixes in the global routing table, nor is it used as a visible transit AS.
whois: 402332
IANA has recorded AS21909 as originally allocated by
/usr/bin/whois -h jwhois.apnic.netr "AS21909\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/
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# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#
ASNumber: 21909
ASName: TRC-ASN
ASHandle: AS21909
RegDate: 2018-04-20
Updated: 2018-04-20
Ref: https://rdap.arin.net/registry/autnum/21909
OrgName: Think Research Corporation
OrgId: TRC-84
Address: 351 King St E #500
City: Toronto
StateProv: ON
PostalCode: M5A 0L6
Country: CA
RegDate: 2016-07-28
Updated: 2021-01-28
Comment: http://www.thinkresearch.com
Ref: https://rdap.arin.net/registry/entity/TRC-84
OrgAbuseHandle: MAYNA73-ARIN
OrgAbuseName: Maynard, Brett
OrgAbusePhone: +1-877-302-1861
OrgAbuseEmail: brett.maynard@thinkresearch.com
OrgAbuseRef: https://rdap.arin.net/registry/entity/MAYNA73-ARIN
OrgTechHandle: MAYNA73-ARIN
OrgTechName: Maynard, Brett
OrgTechPhone: +1-877-302-1861
OrgTechEmail: brett.maynard@thinkresearch.com
OrgTechRef: https://rdap.arin.net/registry/entity/MAYNA73-ARIN
OrgTechHandle: TECHN1454-ARIN
OrgTechName: Technical Operations
OrgTechPhone: +1-877-302-1861
OrgTechEmail: techops@thinkresearch.com
OrgTechRef: https://rdap.arin.net/registry/entity/TECHN1454-ARIN
OrgNOCHandle: TECHN1454-ARIN
OrgNOCName: Technical Operations
OrgNOCPhone: +1-877-302-1861
OrgNOCEmail: techops@thinkresearch.com
OrgNOCRef: https://rdap.arin.net/registry/entity/TECHN1454-ARIN
OrgAbuseHandle: TECHN1454-ARIN
OrgAbuseName: Technical Operations
OrgAbusePhone: +1-877-302-1861
OrgAbuseEmail: techops@thinkresearch.com
OrgAbuseRef: https://rdap.arin.net/registry/entity/TECHN1454-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.
#