ZSCALER-SAN-JOSE

BGP inherited
Cluster stats
Netblocks10 · 2,806 IPv4 addresses
Registered in Switzerland (9) · Australia (1)
All fragments 14 blocks across 3 clusters
Cluster ID210067587
RegistryAPNIC
Customersfind customers using this network →
Evidence & provenance ?
Attribution BGP parent (inherited)
Shared handles clustered on 7 shared RIR contact/maintainer handles
Registry names 2 distinct registrant names across these blocks
full provenance (JSON) → · how attribution works

Footprint over time

5 weekly snapshots · JSON
10 0 netblocks since 2026-07-05
2026-07-05 peak 10 2026-07-19

IP Ranges (10)

⬇ export CSV
CIDR Org name Registry Status Confidence
137.31.38.0/24 ZSCALER-SAN-JOSE RIPE LEGACY ● low
137.31.39.0/24 ZSCALER-SAN-JOSE RIPE LEGACY ● low
159.254.25.0/24 ZSCALER-SAN-JOSE RIPE LEGACY ● low
159.254.30.0/23 ZSCALER-SAN-JOSE RIPE LEGACY ● low
159.254.96.0/24 ZSCALER-SAN-JOSE RIPE LEGACY ● low
159.254.97.0/24 ZSCALER-SAN-JOSE RIPE LEGACY ● low
159.254.240.0/24 ZSCALER-SAN-JOSE RIPE LEGACY ● low
164.137.6.0/24 ZSCALER-SAN-JOSE RIPE ASSIGNED PA ● low
164.137.31.0/24 ZSCALER-SAN-JOSE RIPE ASSIGNED PA ● low
167.103.150.0/24 ZSCALER-SAN-JOSE APNIC ASSIGNED NON-PORTABLE ● low

Network trust

what's this?
RPKI hygiene: B how networks compare →
90.0% of checked blocks have valid RPKI ROA coverage (9 of 10)
Possible discrepancies (3)

These blocks are registered to ZSCALER-SAN-JOSE but cryptographically authorized for a different, unrelated network (1 distinct holder) — often M&A history, multi-homing, or outsourced/managed hosting, occasionally worth a closer look.

159.254.25.0/24 /24 authorized for AS15830 — Equinix (EMEA) Acquisition Enterprises B.V.
137.31.38.0/24 /24 authorized for AS15830 — Equinix (EMEA) Acquisition Enterprises B.V.
137.31.39.0/24 /24 authorized for AS15830 — Equinix (EMEA) Acquisition Enterprises B.V.

NIC Handles

DUMY-RIPE DUMY-RIPE MAINT-ZSCALER-AU ZAPL2-AP ZAPL2-AP ZAPL2-AP ZSCALER-RIPE-MNT