WESTPAC BANKING CORPORATION

Westpac Banking Corporation
Data as of 2026-08-16
GLEIF verified
Complete entity footprint
2 linked clusters · 46 netblocks · 78,349 IPv4 addresses · 1 IPv6 prefixes
This organisation's clusters combined by evidence — shared GLEIF corporate family — not name similarity, so genuinely different organisations that share a name are excluded.
View the full entity page →
LEI
EN5TNI6CI43VEPAMHL14
Registered name
WESTPAC BANKING CORPORATION
Jurisdiction
AU
Ultimate parent
No parent on file in GLEIF
Cluster stats
Netblocks30 · 73,229 IPv4 addresses
IPv6 1 prefix (largest 2001:4d78:104:26a::/64)
Registered in Australia (26) · India (1) · Netherlands (1) · Singapore (1)
Cluster ID222460814
RegistryAPNIC
Owner jurisdictionAU
Customersfind customers using this network →
Evidence & provenance ?
Attribution GLEIF legal-entity match
Legal identityLEI EN5TNI6CI43VEPAMHL14
Shared handles clustered on 17 shared RIR contact/maintainer handles
Registry names 4 distinct registrant names across these blocks
full provenance (JSON) → · how attribution works · report an issue

Footprint over time

8 weekly snapshots · JSON
30 +2 netblocks since 2026-07-05
2026-07-05 peak 30 2026-08-16

IP Ranges (30)

⬇ export CSV
CIDR Org name Registry Status Confidence
27.111.231.8/32 Westpac Banking PEERINGDB ASSIGNED ● high
45.127.172.7/32 Westpac Banking PEERINGDB ASSIGNED ● high
45.127.172.82/32 Westpac Banking PEERINGDB ASSIGNED ● high
45.127.172.230/32 Westpac Banking PEERINGDB ASSIGNED ● high
45.127.172.236/32 Westpac Banking PEERINGDB ASSIGNED ● high
45.127.173.72/32 Westpac Banking PEERINGDB ASSIGNED ● high
45.127.173.73/32 Westpac Banking PEERINGDB ASSIGNED ● high
103.26.68.152/32 Westpac Banking PEERINGDB ASSIGNED ● high
103.77.108.69/32 Westpac Banking PEERINGDB ASSIGNED ● high
110.5.92.0/24 Westpac Banking Corporation BGP ANNOUNCED ● high
110.5.93.0/24 Westpac Banking Corporation BGP ANNOUNCED ● high
110.5.94.0/24 Westpac Banking Corporation BGP ANNOUNCED ● high
166.120.66.0/24 Westpac Banking Corporation BGP ANNOUNCED ● high
166.120.66.0/23 Westpac Banking Corporation BGP ANNOUNCED ● high
166.120.196.0/24 Westpac Banking Corporation BGP ANNOUNCED ● high
166.120.196.0/23 Westpac Banking Corporation BGP ANNOUNCED ● high
166.120.197.0/24 Westpac Banking Corporation BGP ANNOUNCED ● high
166.120.198.0/23 Westpac Banking Corporation BGP ANNOUNCED ● high
166.120.198.0/24 Westpac Banking Corporation BGP ANNOUNCED ● high
166.120.199.0/24 Westpac Banking Corporation BGP ANNOUNCED ● high
62.216.249.96/30 WESTPAC_BANKING RIPE ASSIGNED PA ● low
103.149.184.0/23 Westpac Banking Corporation APNIC ASSIGNED PORTABLE ● low
110.5.80.0/20 Westpac Banking Corporation APNIC ALLOCATED PORTABLE ● low
166.120.0.0/16 Westpac Banking Corporation APNIC ALLOCATED PORTABLE ● low
203.10.111.0/24 Westpac Banking Corporation APNIC ASSIGNED PORTABLE ● low
203.16.39.0/24 Westpac Banking Corporation APNIC ASSIGNED PORTABLE ● low
203.23.44.0/24 Westpac Banking Corporation APNIC ASSIGNED PORTABLE ● low
203.24.0.0/21 Westpac Banking Corporation APNIC ALLOCATED PORTABLE ● low
203.161.186.0/24 Westpac Banking Corporation APNIC ASSIGNED PORTABLE ● low
2001:4d78:104:26a::/64 WESTPAC_BANKING RIPE ASSIGNED ● low

IPv6 ranges (1)

CIDR
2001:4d78:104:26a::/64

Corporate group (2 confirmed entities)

Network trust

what's this?
RPKI hygiene: B how networks compare →
80.0% of checked blocks have valid RPKI ROA coverage (24 of 30)
Possible discrepancies (3)

These blocks are registered to Westpac Banking Corporation 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.

203.10.111.0/24 /24 authorized for AS9426 — SingTel Optus Pty Ltd
203.16.39.0/24 /24 authorized for AS9426 — SingTel Optus Pty Ltd
203.23.44.0/24 /24 authorized for AS9426 — SingTel Optus Pty Ltd

NIC Handles

APNIC-HM AS140217 AS150673 AS9426 AS9547 AW985-AP CP479-AP DUMY-RIPE DUMY-RIPE EQUINIX-FULFIL-MNT EQUINIX-MNT MAINT-WESTPAC-AU +5 more