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Organization

Merck and Co., Inc.

IPv4 addresses
65,280
CIDR ranges
31
Category
unknown
BGP prefixes announced
44

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 v1.1.0 — a transparent heuristic, not a definitive verdict. How it works →

Countries served by Merck and Co., Inc.

Every country where this organization has IPv4 allocations, ranked by IPs held.

ASNs owned by Merck and Co., Inc.

ASNNameIPsPrefixesCountry
AS7054 Merck and Co., Inc. 65.3K 31 US

Largest CIDR ranges

CIDRIPsPTR DensityASNCountryStateCity
155.91.128.0/17 32.8K
0.0%
AS7054 US
155.91.0.0/18 16.4K
1.5%
AS7054 US Pennsylvania Lansdale
155.91.192.0/18 16.4K
0.0%
AS7054 US
155.91.96.0/19 8.2K
0.0%
AS7054 US
155.91.160.0/19 8.2K
0.0%
AS7054 US
155.91.80.0/20 4.1K
0.0%
AS7054 US
155.91.128.0/20 4.1K
0.0%
AS7054 US
155.91.8.0/21 2.0K
0.0%
AS7054 US
155.91.64.0/21 2.0K
0.0%
AS7054 US
155.91.144.0/21 2.0K
0.0%
AS7054 US
155.91.152.0/21 2.0K
0.0%
AS7054 US
155.91.160.0/21 2.0K
0.0%
AS7054 US
155.91.56.0/22 1.0K
0.0%
AS7054 US
155.91.76.0/22 1.0K
0.0%
AS7054 US
155.91.152.0/22 1.0K
0.0%
AS7054 SG
155.91.156.0/22 1.0K
0.0%
AS7054 US
155.91.16.0/23 512
0.0%
AS7054 US
155.91.26.0/23 512
7.6%
AS7054 US
155.91.28.0/23 512
0.0%
AS7054 US
155.91.34.0/23 512
13.7%
AS7054 US
155.91.38.0/23 512
14.3%
AS7054 US
155.91.40.0/23 512
2.1%
AS7054 US
155.91.44.0/23 512
0.6%
AS7054 US
155.91.52.0/23 512
0.0%
AS7054 US
155.91.72.0/23 512
0.0%
AS7054 US
155.91.74.0/23 512
0.0%
AS7054 US
155.91.7.0/24 256
0.0%
AS7054 US
155.91.18.0/24 256
0.0%
AS7054 US
155.91.20.0/24 256
0.0%
AS7054 US
155.91.31.0/24 256
2.3%
AS7054 US
155.91.37.0/24 256
5.5%
AS7054 US
155.91.42.0/24 256
0.0%
AS7054 US
155.91.47.0/24 256
0.0%
AS7054 US
155.91.49.0/24 256
0.0%
AS7054 US
155.91.50.0/24 256
0.0%
AS7054 US
155.91.60.0/24 256
0.0%
AS7054 US
155.91.62.0/24 256
0.0%
AS7054 US
155.91.72.0/24 256
0.0%
AS7054 NL
155.91.73.0/24 256
0.0%
AS7054 US
155.91.74.0/24 256
0.0%
AS7054 US
155.91.76.0/24 256
0.0%
AS7054 IE
155.91.77.0/24 256
0.0%
AS7054 NL
155.91.78.0/24 256
0.0%
AS7054 NL
155.91.79.0/24 256
0.0%
AS7054 US

Frequently Asked Questions

How many IP addresses does Merck and Co., Inc. own?

Merck and Co., Inc. controls 65.3K IPv4 addresses distributed across 31 CIDR ranges. The organization is registered in United States.

What ASNs does Merck and Co., Inc. operate?

Merck and Co., Inc. operates 1 Autonomous System. Each ASN represents an independently routed network that Merck and Co., Inc. manages for internet traffic delivery.

What countries does Merck and Co., Inc. serve?

Merck and Co., Inc. has IP address allocations in 3 countries, indicating a multinational network presence for delivering services across these regions.

What type of organization is Merck and Co., Inc.?

Merck and Co., Inc. is categorized as unknown. This classification is based on the organization's primary use of its IP address allocations.

Last updated: 2026-07-22 07:25:32 UTC
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