ASN Lookup Tool

AS21589
City of San Jose US US 25 Routes

AS21589City of San Jose

AS Number 21589
AS Name CSJ-INTERNET
Organization City of San Jose(csj-1)
Country US
Website sanjoseca.gov
Number of IPv4 Routes 24
Number of IPv6 Routes 1
ASN type GOVERNMENT
Allocation Status
Registry ARIN
Date Allocated 2012-10-04T00:00

IP Ranges

Route # IPs
156.39.60.0/24 256
156.39.0.0/24 256
156.39.73.0/24 256
156.39.64.0/22 1024
156.39.69.0/24 256
156.39.125.0/24 256
156.39.99.0/24 256
156.39.131.0/24 256
156.39.13.0/24 256
buy plan 256
buy plan 256
buy plan 256
buy plan 256
buy plan 256

Raw Whois Response

#
# 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 1997-2025, American Registry for Internet Numbers, Ltd.
#


ASNumber:       21589
ASName:         CSJ-INTERNET
ASHandle:       AS21589
RegDate:        2012-10-04
Updated:        2012-10-04    
Ref:            https://rdap.arin.net/registry/autnum/21589


OrgName:        City of San Jose
OrgId:          CSJ-1
Address:        200 E. Santa Clara St.
City:           San Jose
StateProv:      CA
PostalCode:     95113
Country:        US
RegDate:        1991-12-09
Updated:        2019-05-21
Ref:            https://rdap.arin.net/registry/entity/CSJ-1


OrgTechHandle: DNSAD188-ARIN
OrgTechName:   DNS Admins
OrgTechPhone:  +1-408-793-6809 
OrgTechEmail:  NetworkGroup@sanjoseca.gov
OrgTechRef:    https://rdap.arin.net/registry/entity/DNSAD188-ARIN

OrgAbuseHandle: DNSAD188-ARIN
OrgAbuseName:   DNS Admins
OrgAbusePhone:  +1-408-793-6809 
OrgAbuseEmail:  NetworkGroup@sanjoseca.gov
OrgAbuseRef:    https://rdap.arin.net/registry/entity/DNSAD188-ARIN

OrgTechHandle: CASTI255-ARIN
OrgTechName:   Castillo, James 
OrgTechPhone:  +1-408-793-6809 
OrgTechEmail:  james.castillo@sanjoseca.gov
OrgTechRef:    https://rdap.arin.net/registry/entity/CASTI255-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 1997-2025, American Registry for Internet Numbers, Ltd.
#
            

Parsed Whois Response

Peers

AS Number Description Country
AS7018 AT&T Enterprises, LLC US
AS6939 Hurricane Electric LLC US
AS286 GTT Communications Inc. NL
AS286 GTT Communications Inc. US
AS3257 GTT Communications Inc. US

Upstreams

AS Number Description Country
AS7018 AT&T Enterprises, LLC US
AS6939 Hurricane Electric LLC US
AS286 GTT Communications Inc. US
AS3257 GTT Communications Inc. US

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