This AS is not currently used to announce prefixes in the global routing table, nor is it used as a visible transit AS.
whois: 402603
IANA has recorded AS21810 as originally allocated by
/usr/bin/whois -h jwhois.apnic.netr "AS21810\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: 21810
ASName: TEMPESCHOOLS
ASHandle: AS21810
RegDate: 2001-06-21
Updated: 2012-02-24
Ref: https://rdap.arin.net/registry/autnum/21810
OrgName: Tempe School District #3
OrgId: TSD3-1
Address: 3205 So Rural Rd.
City: Tempe
StateProv: AZ
PostalCode: 85282
Country: US
RegDate: 2001-06-21
Updated: 2012-10-10
Ref: https://rdap.arin.net/registry/entity/TSD3-1
OrgAbuseHandle: JS507-ARIN
OrgAbuseName: Sarrett, Jack
OrgAbusePhone: +1-602-730-7469
OrgAbuseEmail:
OrgAbuseRef: https://rdap.arin.net/registry/entity/JS507-ARIN
OrgTechHandle: JS507-ARIN
OrgTechName: Sarrett, Jack
OrgTechPhone: +1-602-730-7469
OrgTechEmail:
OrgTechRef: https://rdap.arin.net/registry/entity/JS507-ARIN
RTechHandle: JS507-ARIN
RTechName: Sarrett, Jack
RTechPhone: +1-602-730-7469
RTechEmail:
RTechRef: https://rdap.arin.net/registry/entity/JS507-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.
#