City of San Jose

Data as of 2026-11-08
BGP inherited
This organisation
Netblocks27 · 65,536 IPv4 addresses
IPv6 1 prefix (largest 2001:470:f0::/48)
Also registered under this name 79 netblocks across 8 separate records
Record ID269891678
RegistryBGP
Customerssee who runs inside this network →
Evidence & provenance ?
Attribution BGP parent (inherited)
Shared handles clustered on 6 shared RIR contact/maintainer handles
Registry names 2 distinct registrant names across these blocks
full provenance (JSON) → · how attribution works · report an issue

IP Ranges (27)

⬇ export CSV
CIDR Org name Registry Status Confidence
156.39.0.0/16 City of San Jose ARIN DIRECT ALLOCATION ● high
156.39.0.0/24 City of San Jose BGP ANNOUNCED ● high
156.39.1.0/24 City of San Jose BGP ANNOUNCED ● high
156.39.2.0/24 City of San Jose BGP ANNOUNCED ● high
156.39.3.0/24 City of San Jose BGP ANNOUNCED ● high
156.39.5.0/24 City of San Jose BGP ANNOUNCED ● high
156.39.10.0/24 City of San Jose BGP ANNOUNCED ● high
156.39.11.0/24 City of San Jose BGP ANNOUNCED ● high
156.39.12.0/24 City of San Jose BGP ANNOUNCED ● high
156.39.13.0/24 City of San Jose BGP ANNOUNCED ● high
156.39.15.0/24 City of San Jose BGP ANNOUNCED ● high
156.39.28.0/24 City of San Jose BGP ANNOUNCED ● high
156.39.48.0/21 City of San Jose BGP ANNOUNCED ● high
156.39.60.0/24 City of San Jose BGP ANNOUNCED ● high
156.39.62.0/24 City of San Jose BGP ANNOUNCED ● high
156.39.63.0/24 City of San Jose BGP ANNOUNCED ● high
156.39.64.0/22 City of San Jose BGP ANNOUNCED ● high
156.39.68.0/24 City of San Jose BGP ANNOUNCED ● high
156.39.69.0/24 City of San Jose BGP ANNOUNCED ● high
156.39.73.0/24 City of San Jose BGP ANNOUNCED ● high
156.39.99.0/24 City of San Jose BGP ANNOUNCED ● high
156.39.125.0/24 City of San Jose BGP ANNOUNCED ● high
156.39.127.0/24 City of San Jose BGP ANNOUNCED ● high
156.39.131.0/24 City of San Jose BGP ANNOUNCED ● high
156.39.136.0/21 City of San Jose BGP ANNOUNCED ● high
156.39.160.0/24 City of San Jose BGP ANNOUNCED ● high
2001:470:f0::/48 City of San Jose BGP ANNOUNCED ● high

IPv6 ranges (1)

CIDR
2001:470:f0::/48

Footprint over time

20 weekly snapshots · JSON
27 0 netblocks since 2026-07-05
2026-07-05 peak 27 2026-11-08

Network trust

what's this?
RPKI hygiene: F how networks compare →
3.7% of checked blocks have valid RPKI ROA coverage (1 of 27)
No discrepancies found among checked blocks.

NIC Handles

AS21589 CASTI255-ARIN CSJ-1 DNSAD188-ARIN DNSAD188-ARIN DNSAD188-ARIN