MARSH MCLENNAN AS
Marsh & McLennan Inc
Data as of 2026-07-26
GLEIF verified
Complete entity footprint
5 linked clusters ·
85 netblocks ·
240,612 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.
LEI
213800LIW1BGLIXKVI84
Registered name
MARSH MCLENNAN AS
Jurisdiction
Cluster stats
| Netblocks | 2 · 73,472 IPv4 addresses |
| All fragments | 11 blocks across 2 clusters |
| Cluster ID | 213588149 |
| Registry | ARIN |
| Owner jurisdiction | NO |
| Customers | find customers using this network → |
Evidence & provenance ?
| Attribution | GLEIF legal-entity match |
| Legal identity | LEI 213800LIW1BGLIXKVI84 |
| Shared handles | clustered on 8 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 (2)
⬇ export CSV| CIDR | Org name | Registry | Status | Confidence |
|---|---|---|---|---|
| 168.74.0.0/16 | Marsh & McLennan Inc | ARIN | DIRECT ALLOCATION | ● low |
| 199.85.32.0 – 199.85.62.255 | Marsh & McLennan Ltd. | ARIN | DIRECT ALLOCATION | ● low |
Corporate group (5 confirmed entities)
- Marsh Inc. 70 blocks
- Marsh & McLennan Companies, Inc. 9 blocks
- Marsh Ireland Brokers Limited 4 blocks
- William-M-Mercer-Ltd 1 blocks
NIC Handles
CFC2-ARIN
CFC2-ARIN
CFC2-ARIN
MARSHM
MML-1
MV18-ARIN
MV18-ARIN
MV18-ARIN