AECOM LIMITED

AECOM Limited
Data as of 2026-07-26
GLEIF verified
Complete entity footprint
2 linked clusters · 17 netblocks · 68,644 IPv4 addresses · 2 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
2WKCM9EOCM4UGJU1F243
Registered name
AECOM LIMITED
Jurisdiction
GB
Ultimate parent
AECOM
0EEB8GF0W0NPCIHZX097
Cluster stats
Netblocks16 · 68,388 IPv4 addresses
IPv6 2 prefixes (largest 2a04:e780::/29)
Registered in United States (9) · United Kingdom (2) · France (1) · LT (1) · Poland (1)
All fragments 25 blocks across 10 clusters
Cluster ID213610725
RegistryBGP
Owner jurisdictionGB
Customersfind customers using this network →
Evidence & provenance ?
Attribution GLEIF legal-entity match
Legal identityLEI 2WKCM9EOCM4UGJU1F243
Shared handles clustered on 21 shared RIR contact/maintainer handles
Registry names 5 distinct registrant names across these blocks
full provenance (JSON) → · how attribution works · report an issue

Footprint over time

6 weekly snapshots · JSON
16 0 netblocks since 2026-07-05
2026-07-05 peak 16 2026-07-26

IP Ranges (16)

⬇ export CSV
CIDR Org name Registry Status Confidence
63.70.138.0/24 AECOM BGP ANNOUNCED ● high
65.209.211.0/24 AECOM BGP ANNOUNCED ● high
65.240.194.0/23 AECOM BGP ANNOUNCED ● high
144.78.160.0/22 AECOM Limited BGP ANNOUNCED ● high
144.78.192.0/23 AECOM BGP ANNOUNCED ● high
144.78.194.0/23 AECOM BGP ANNOUNCED ● high
204.76.196.0/23 AECOM BGP ANNOUNCED ● high
209.249.113.0/24 AECOM BGP ANNOUNCED ● high
5.226.109.140/30 AECOM RIPE ASSIGNED PA ● low
144.78.0.0/16 AECOM ARIN DIRECT ALLOCATION ● low
185.60.80.0/22 AECOM Limited RIPE ALLOCATED PA ● low
212.51.179.192/29 AECOM RIPE ASSIGNED PA ● low
212.59.5.136/29 AECOM RIPE ASSIGNED PA ● low
213.244.179.48/28 AECOM RIPE ASSIGNED PA ● low
2a00:2381:f038::/48 AECOM RIPE AGGREGATED-BY-LIR ● low
2a04:e780::/29 AECOM Limited RIPE ALLOCATED-BY-RIR ● low

IPv6 ranges (2)

CIDR
2a04:e780::/29
2a00:2381:f038::/48

Corporate group (2 confirmed entities)

Network trust

what's this?
RPKI hygiene: D how networks compare →
31.2% of checked blocks have valid RPKI ROA coverage (5 of 16)
Possible discrepancies (1)

These blocks are registered to AECOM Limited 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.

2a00:2381:f038::/48 /48 authorized for AS2856 — British Telecommunications Limited

NIC Handles

AECOM-MNT AECOMC AS12238 AS22866 AS40729 AS60060 BTNET-MNT DOUGL278-ARIN DOUGL278-ARIN DOUGL278-ARIN DUMY-RIPE DUMY-RIPE +9 more