Merck and Co., Inc.

Data as of 2026-09-06
BGP inherited
This organisation
Netblocks65 · 2,818,048 IPv4 addresses
IPv6 1 prefix (largest 2620:170::/36)
Record ID236738634
RegistryBGP
Customerssee who runs inside this network →
Evidence & provenance ?
Attribution BGP parent (inherited)
Shared handles clustered on 13 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 (65)

⬇ export CSV
CIDR Org name Registry Status Confidence
54.1.0.0/16 Merck and Co., Inc. ARIN DIRECT ALLOCATION ● high
54.3.0.0 – 54.4.255.255 Merck and Co., Inc. ARIN DIRECT ALLOCATION ● high
54.10.0.0/15 Merck and Co., Inc. ARIN DIRECT ALLOCATION ● high
54.13.0.0 – 54.14.255.255 Merck and Co., Inc. ARIN DIRECT ALLOCATION ● high
54.23.0.0 – 54.24.255.255 Merck and Co., Inc. ARIN DIRECT ALLOCATION ● high
54.28.0.0/16 Merck and Co., Inc. ARIN DIRECT ALLOCATION ● high
54.30.0.0/16 Merck and Co., Inc. ARIN DIRECT ALLOCATION ● high
54.40.0.0 – 54.42.255.255 Merck and Co., Inc. ARIN DIRECT ALLOCATION ● high
54.44.0.0/16 Merck and Co., Inc. ARIN DIRECT ALLOCATION ● high
54.48.0.0 – 54.53.255.255 Merck and Co., Inc. ARIN DIRECT ALLOCATION ● high
54.56.0.0 – 54.58.255.255 Merck and Co., Inc. ARIN DIRECT ALLOCATION ● high
54.61.0.0 – 54.62.255.255 Merck and Co., Inc. ARIN DIRECT ALLOCATION ● high
54.96.0.0/14 Merck and Co., Inc. ARIN DIRECT ALLOCATION ● high
54.101.0.0/16 Merck and Co., Inc. ARIN DIRECT ALLOCATION ● high
54.103.0.0/16 Merck and Co., Inc. ARIN DIRECT ALLOCATION ● high
54.105.0.0/16 Merck and Co., Inc. ARIN DIRECT ALLOCATION ● high
54.110.0.0/16 Merck and Co., Inc. ARIN DIRECT ALLOCATION ● high
54.120.0.0/16 Merck and Co., Inc. ARIN DIRECT ALLOCATION ● high
54.125.0.0/16 Merck and Co., Inc. ARIN DIRECT ALLOCATION ● high
54.129.0.0/16 Merck and Co., Inc. ARIN DIRECT ALLOCATION ● high
54.140.0.0/14 Merck and Co., Inc. ARIN DIRECT ALLOCATION ● high
134.26.0.0/16 Merck and Co., Inc. ARIN DIRECT ALLOCATION ● high
155.91.0.0/16 Merck and Co., Inc. BGP ANNOUNCED ● high
155.91.7.0/24 Merck and Co., Inc. BGP ANNOUNCED ● high
155.91.8.0/22 Merck and Co., Inc. BGP ANNOUNCED ● high
155.91.10.0/24 Merck and Co., Inc. BGP ANNOUNCED ● high
155.91.11.0/24 Merck and Co., Inc. BGP ANNOUNCED ● high
155.91.12.0/23 Merck and Co., Inc. BGP ANNOUNCED ● high
155.91.14.0/24 Merck and Co., Inc. BGP ANNOUNCED ● high
155.91.15.0/24 Merck and Co., Inc. BGP ANNOUNCED ● high
155.91.16.0/24 Merck and Co., Inc. BGP ANNOUNCED ● high
155.91.17.0/24 Merck and Co., Inc. BGP ANNOUNCED ● high
155.91.18.0/24 Merck and Co., Inc. BGP ANNOUNCED ● high
155.91.20.0/24 Merck and Co., Inc. BGP ANNOUNCED ● high
155.91.26.0/24 Merck and Co., Inc. BGP ANNOUNCED ● high
155.91.27.0/24 Merck and Co., Inc. BGP ANNOUNCED ● high
155.91.28.0/24 Merck and Co., Inc. BGP ANNOUNCED ● high
155.91.29.0/24 Merck and Co., Inc. BGP ANNOUNCED ● high
155.91.31.0/24 Merck and Co., Inc. BGP ANNOUNCED ● high
155.91.34.0/24 Merck and Co., Inc. BGP ANNOUNCED ● high
155.91.35.0/24 Merck and Co., Inc. BGP ANNOUNCED ● high
155.91.37.0/24 Merck and Co., Inc. BGP ANNOUNCED ● high
155.91.38.0/24 Merck and Co., Inc. BGP ANNOUNCED ● high
155.91.39.0/24 Merck and Co., Inc. BGP ANNOUNCED ● high
155.91.40.0/24 Merck and Co., Inc. BGP ANNOUNCED ● high
155.91.41.0/24 Merck and Co., Inc. BGP ANNOUNCED ● high
155.91.42.0/24 Merck and Co., Inc. BGP ANNOUNCED ● high
155.91.44.0/24 Merck and Co., Inc. BGP ANNOUNCED ● high
155.91.45.0/24 Merck and Co., Inc. BGP ANNOUNCED ● high
155.91.47.0/24 Merck and Co., Inc. BGP ANNOUNCED ● high
155.91.49.0/24 Merck and Co., Inc. BGP ANNOUNCED ● high
155.91.50.0/24 Merck and Co., Inc. BGP ANNOUNCED ● high
155.91.52.0/24 Merck and Co., Inc. BGP ANNOUNCED ● high
155.91.53.0/24 Merck and Co., Inc. BGP ANNOUNCED ● high
155.91.56.0/24 Merck and Co., Inc. BGP ANNOUNCED ● high
155.91.57.0/24 Merck and Co., Inc. BGP ANNOUNCED ● high
155.91.58.0/24 Merck and Co., Inc. BGP ANNOUNCED ● high
155.91.59.0/24 Merck and Co., Inc. BGP ANNOUNCED ● high
155.91.60.0/24 Merck and Co., Inc. BGP ANNOUNCED ● high
155.91.62.0/24 Merck and Co., Inc. BGP ANNOUNCED ● high
155.91.72.0/22 Merck and Co., Inc. BGP ANNOUNCED ● high
155.91.72.0/21 Merck and Co., Inc. BGP ANNOUNCED ● high
155.91.152.0/22 Merck and Co., Inc. BGP ANNOUNCED ● high
155.91.152.0/21 Merck and Co., Inc. BGP ANNOUNCED ● high
2620:170::/36 Merck and Co., Inc. ARIN DIRECT ALLOCATION ● high

IPv6 ranges (1)

Footprint over time

11 weekly snapshots · JSON
66 +2 netblocks since 2026-07-05
2026-07-05 peak 66 2026-09-06

NIC Handles

AS213-ARIN AS7054 DC272-ARIN MERCKA MERCKA WHITE7-ARIN WHITE7-ARIN WHITE7-ARIN WHITE7-ARIN WHITE7-ARIN WHITE7-ARIN WHITE7-ARIN +1 more