City of San Jose
BGP inherited
Cluster stats
| Netblocks | 27 |
| All fragments | 75 blocks across 6 clusters |
| Cluster ID | 204797157 |
| Registry | BGP |
| Customers | find customers using 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 | |
Footprint over time
4 weekly snapshots · JSON
27
0 netblocks since 2026-07-05
2026-07-05
peak 27
2026-07-13
IP Ranges (27)
⬇ export CSV| CIDR | Org name | Registry | Status | Confidence |
|---|---|---|---|---|
| 156.39.0.0/24 | City of San Jose | BGP | ANNOUNCED | ● high |
| 156.39.0.0/16 | City of San Jose | ARIN | DIRECT ALLOCATION | ● 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 |
Possibly related to this organisation
what's this?Same name family
Separately-registered clusters whose names share “City of San” — often
per-country or per-system registrations of the same brand, occasionally a different
organisation sharing the name. Not counted in this organisation's own footprint.
- City of San Antonio 37 blocks
- City of San Diego 8 blocks
- City of San Buenaventura 1 blocks
- City of San Leandro 1 blocks
- City of San Angelo 1 blocks
Sub-allocations under carriers
IP blocks an ISP reassigned to a similarly-named customer — decoded from the ISP's own
naming convention, not a direct registration.
- COMPUTERS-IN-THE-CITY-LTD-LAN-38061 via Spitfire Network Services Limited sub-allocation
- INCITY sub-allocation
- Cork-City-VEC via Jisc Services Limited sub-allocation
- Piercing-City via T-Mobile Austria GmbH sub-allocation
- EFFICITY via Dstny BE N.V. sub-allocation
- mbzcityproject-EMIRNET via EMIRATES TELECOMMUNICATIONS GROUP COMPANY (ETISALAT GROUP) PJSC sub-allocation
- Guernsey Electricity via JT (Jersey) Limited sub-allocation
- Spb Servers via VMCity LLC sub-allocation
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