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 AS21580 as originally allocated by
/usr/bin/whois -h jwhois.apnic.netr "AS21580\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: 21580
ASName: CAL-NET-INC
ASHandle: AS21580
RegDate: 2006-12-07
Updated: 2012-12-12
Ref: https://rdap.arin.net/registry/autnum/21580
OrgName: Cal.net, Inc.
OrgId: CALNE-88
Address: 4101 Wild Chaparral Dr
City: Shingle Springs
StateProv: CA
PostalCode: 95682
Country: US
RegDate: 2011-06-24
Updated: 2025-02-28
Ref: https://rdap.arin.net/registry/entity/CALNE-88
OrgNOCHandle: ITDEP47-ARIN
OrgNOCName: IT Department
OrgNOCPhone: +1-530-672-1078
OrgNOCEmail: dl-engineering@corp.cal.net
OrgNOCRef: https://rdap.arin.net/registry/entity/ITDEP47-ARIN
OrgAbuseHandle: CALNE-ARIN
OrgAbuseName: CALNET-ABUSE
OrgAbusePhone: +1-530-672-1078
OrgAbuseEmail: abuse@corp.cal.net
OrgAbuseRef: https://rdap.arin.net/registry/entity/CALNE-ARIN
OrgTechHandle: ITDEP47-ARIN
OrgTechName: IT Department
OrgTechPhone: +1-530-672-1078
OrgTechEmail: dl-engineering@corp.cal.net
OrgTechRef: https://rdap.arin.net/registry/entity/ITDEP47-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.
#