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AS21589

City of San Jose

AS21589 is City of San Jose (sanjoseca.gov). It announces 10,752 IPv4 addresses in 25 prefixes, and 1 IPv6 prefixes.

United States· ARIN· allocated 2012-10-04· government

10,752
IPv4 addresses announced
25
IPv4 prefixes
1
IPv6 prefixes
3.85%
of its routes RPKI-valid
10,752
of its IPv4 geolocated
1
country

Where its space is

The IPv4 it announces that IP Geolocation places, by country. A /24 counts for the AS announcing most of it.

  1. United States10,752 · 100.00%

Registry record

Its ASN Whois record, as the registry publishes it.

handle
CSJ-INTERNET
name
City of San Jose
org
CSJ-1
org name
City of San Jose
org address
200 E. Santa Clara St., San Jose, CA, 95113
org city
San Jose
org country
US
country
US
source
arin
created
2012-10-04
updated
2012-10-04
abuse name
DNS Admins
abuse phone
+1-408-793-6809
abuse kind
role
abuse city
San Jose
abuse country
US
admin name
DNS Admins
admin phone
+1-408-793-6809
admin kind
role
admin city
San Jose
admin country
US
tech name
James Castillo
tech phone
+1-408-793-6809
tech kind
person
tech city
San Jose
tech country
US

What the databases see

Addresses each address-keyed database holds in the IPv4 it announces, as a share of that space, with its largest providers. Counts overlap.

IPv4 prefixes

Every IPv4 prefix BGP Route saw it announce. A prefix another AS also announces says so.

25 prefixes
PREFIXCOUNTRYRPKIPEERSFIRST SEEN
156.39.0.0/24United Statesnot found182026-10-02
156.39.1.0/24United Statesnot found182026-10-02
156.39.2.0/24United Statesnot found182026-10-02
156.39.3.0/24United Statesnot found182026-10-02
156.39.5.0/24United Statesnot found182026-10-02
156.39.10.0/24United Statesnot found182026-10-02
156.39.11.0/24United Statesnot found182026-10-02
156.39.12.0/24United Statesnot found182026-10-02
156.39.13.0/24United Statesnot found182026-10-02
156.39.15.0/24United Statesnot found182026-10-02
156.39.28.0/24United Statesnot found182026-10-02
156.39.48.0/21United Statesnot found182026-10-02
156.39.60.0/24United Statesnot found182026-10-02
156.39.62.0/24United Statesnot found182026-10-02
156.39.63.0/24United Statesnot found182026-10-02
156.39.64.0/22United Statesnot found172026-10-02
156.39.68.0/24United Statesnot found172026-10-02
156.39.69.0/24United Statesnot found172026-10-02
156.39.73.0/24United Statesnot found182026-10-02
156.39.99.0/24United Statesnot found172026-10-02
156.39.125.0/24United Statesnot found182026-10-02
156.39.127.0/24United Statesnot found182026-10-02
156.39.131.0/24United Statesnot found182026-10-02
156.39.136.0/21United Statesnot found182026-10-02
156.39.160.0/24United Statesnot found172026-10-02

IPv6 prefixes

Every IPv6 prefix BGP Route saw it announce.

1 prefixes
PREFIXCOUNTRYRPKIPEERSFIRST SEEN
2001:470:f0::/48United Statesvalid202026-10-02
00 · Evaluate

Test the real build first.

An evaluation license puts a full current build in your hands — every row, every column, no sampling — so you can measure it against your own traffic before anyone talks about terms.

01 · License

Then license what you use.

Standard, for detection and decisions inside your own product and operations.
Redistribution, when the data ships onward inside what you sell — priced by scope, not by seat.
Annual terms, a named contact, and flexible payment terms — monthly, quarterly or yearly.