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Autonomous System

AS7054

Merck and Co., Inc.

Announced IPs
65,280
CIDR prefixes
31
ASN
AS7054

Reputation · trust score

A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.

65/100
Moderate
How this score is built

Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
155.91.128.0/17 32.8K
0.0%
Merck and Co., Inc. US
155.91.0.0/18 16.4K
1.5%
Merck and Co., Inc. US Pennsylvania Lansdale
155.91.192.0/18 16.4K
0.0%
US
155.91.96.0/19 8.2K
0.0%
Merck and Co., Inc. US
155.91.160.0/19 8.2K
0.0%
US
155.91.80.0/20 4.1K
0.0%
Merck and Co., Inc. US
155.91.128.0/20 4.1K
0.0%
US
155.91.8.0/21 2.0K
0.0%
Merck and Co., Inc. US Pennsylvania Lansdale
155.91.64.0/21 2.0K
0.0%
Merck and Co., Inc. US
155.91.144.0/21 2.0K
0.0%
US
155.91.152.0/21 2.0K
0.0%
Merck and Co., Inc. US
155.91.160.0/21 2.0K
0.0%
Merck and Co., Inc. US
155.91.56.0/22 1.0K
0.0%
Merck and Co., Inc. US
155.91.76.0/22 1.0K
0.0%
Merck and Co., Inc. US
155.91.156.0/22 1.0K
0.0%
US
155.91.16.0/23 512
0.0%
Merck and Co., Inc. US
155.91.26.0/23 512
7.6%
Merck and Co., Inc. US
155.91.28.0/23 512
0.0%
Merck and Co., Inc. US
155.91.34.0/23 512
13.7%
Merck and Co., Inc. US
155.91.38.0/23 512
14.3%
Merck and Co., Inc. US
155.91.40.0/23 512
2.1%
Merck and Co., Inc. US
155.91.44.0/23 512
0.6%
Merck and Co., Inc. US
155.91.52.0/23 512
0.0%
Merck and Co., Inc. US
155.91.72.0/23 512
0.0%
Merck and Co., Inc. US
155.91.74.0/23 512
0.0%
US
155.91.154.0/23 512
0.0%
SG
155.91.7.0/24 256
0.0%
Merck and Co., Inc. US
155.91.18.0/24 256
0.0%
Merck and Co., Inc. US
155.91.20.0/24 256
0.0%
Merck and Co., Inc. US
155.91.31.0/24 256
2.3%
Merck and Co., Inc. US
155.91.37.0/24 256
5.5%
Merck and Co., Inc. US
155.91.42.0/24 256
0.0%
Merck and Co., Inc. US
155.91.47.0/24 256
0.0%
Merck and Co., Inc. US
155.91.49.0/24 256
0.0%
Merck and Co., Inc. US
155.91.50.0/24 256
0.0%
Merck and Co., Inc. US
155.91.60.0/24 256
0.0%
Merck and Co., Inc. US
155.91.62.0/24 256
0.0%
Merck and Co., Inc. US
155.91.72.0/24 256
0.0%
NL
155.91.73.0/24 256
0.0%
US
155.91.74.0/24 256
0.0%
Merck and Co., Inc. US
155.91.76.0/24 256
0.0%
IE
155.91.77.0/24 256
0.0%
NL
155.91.78.0/24 256
0.0%
NL
155.91.79.0/24 256
0.0%
US
155.91.152.0/24 256
0.0%
SG
155.91.153.0/24 256
0.0%
US

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS7054 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
155.91.0.0/16 17,976 2026-09-11 02:16:10
155.91.44.0/24 17,711 2026-09-11 02:16:10
155.91.7.0/24 17,708 2026-09-11 02:16:10
155.91.57.0/24 17,692 2026-09-11 02:16:10
155.91.42.0/24 17,680 2026-09-11 02:16:10
155.91.59.0/24 17,667 2026-09-11 02:16:10
155.91.41.0/24 17,649 2026-09-11 02:16:10
155.91.39.0/24 17,642 2026-09-11 02:16:10
155.91.45.0/24 17,638 2026-09-11 02:16:10
155.91.16.0/24 17,634 2026-09-11 02:16:10
155.91.49.0/24 17,633 2026-09-11 02:16:10
155.91.26.0/24 17,630 2026-09-11 02:16:10
155.91.35.0/24 17,630 2026-09-11 02:16:10
155.91.38.0/24 17,626 2026-09-11 02:16:10
155.91.53.0/24 17,621 2026-09-11 02:16:10
155.91.15.0/24 17,617 2026-09-11 02:16:10
155.91.40.0/24 17,615 2026-09-11 02:16:10
155.91.50.0/24 17,606 2026-09-11 02:16:10
155.91.34.0/24 17,601 2026-09-11 02:16:10
155.91.47.0/24 17,596 2026-09-11 02:15:56
155.91.11.0/24 14,621 2026-09-11 02:16:15
155.91.10.0/24 14,578 2026-09-11 02:16:15
155.91.56.0/24 13,534 2026-09-11 02:16:24
155.91.28.0/24 13,521 2026-09-11 02:16:24
155.91.60.0/24 13,514 2026-09-11 02:16:24
155.91.14.0/24 13,511 2026-09-11 02:16:24
155.91.58.0/24 13,511 2026-09-11 02:16:24
155.91.27.0/24 13,505 2026-09-11 02:16:24
155.91.20.0/24 13,503 2026-09-11 02:16:24
155.91.17.0/24 13,499 2026-09-11 02:16:24
155.91.37.0/24 13,495 2026-09-11 02:16:24
155.91.31.0/24 13,488 2026-09-11 02:16:24
155.91.52.0/24 13,478 2026-09-11 02:16:24
155.91.29.0/24 13,476 2026-09-11 02:16:24
155.91.18.0/24 13,346 2026-09-11 02:16:10
155.91.72.0/22 11,527 2026-09-11 02:16:18
155.91.72.0/21 11,379 2026-09-11 02:16:18
155.91.12.0/23 10,218 2026-09-11 02:16:15
155.91.8.0/22 10,186 2026-09-11 02:16:15
155.91.62.0/24 10,102 2026-09-11 02:16:24
155.91.152.0/22 8,137 2026-09-11 01:06:04
155.91.152.0/21 8,106 2026-09-11 01:06:04
155.91.160.0/21 2,067 2026-06-02 10:17:45
155.91.160.0/22 2,065 2026-06-02 10:17:45

Frequently Asked Questions

What is AS7054?

AS7054 is an Autonomous System Number assigned to Merck and Co., Inc.. An ASN identifies a network that controls a specific set of IP addresses and determines how traffic is routed across the internet via BGP (Border Gateway Protocol).

How many IP addresses does AS7054 announce?

AS7054 announces 65.3K IPv4 addresses distributed across 31 routed CIDR prefixes. The network is registered in United States.

Who operates AS7054?

AS7054 is operated by Merck and Co., Inc.. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.

What country is AS7054 registered in?

AS7054 is registered in United States. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-09-11 02:54:05 UTC
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