155.91.26.0/24

AS7054 · Merck and Co., Inc.

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Summary

Country	United States
Domain	merck.com
ASN	AS7054
Parent Range	155.91.0.0/16
Registry	ARIN
ID	MERCK1

WHOIS Details

NetHandle:      NET-155-91-0-0-1
OrgID:          MERCKA
Parent:         NET-155-0-0-0-0
NetName:        MERCK1
NetRange:       155.91.0.0 - 155.91.255.255
NetType:        allocation
RegDate:        1991-10-31
Updated:        2021-12-14
TechHandle:     AS213-ARIN
Source:         ARIN


OrgID:          MERCKA
OrgName:        Merck and Co., Inc.
CanAllocate:    
Street:         126 East Lincoln Avenue
City:           Rahway
State/Prov:     NJ
Country:        US
PostalCode:     07065
RegDate:        1992-03-17
Updated:        2025-05-06
OrgAdminHandle: WHITE7-ARIN
OrgTechHandle:  WHITE7-ARIN
OrgAbuseHandle: WHITE7-ARIN
OrgNOCHandle:   WHITE7-ARIN
Source:         ARIN


POCHandle:      AS213-ARIN
IsRole:         N
LastName:       Starks
FirstName:      Anthony
Street:         1 Merck Drive
City:           Whitehouse Station
State/Prov:     NJ
Country:        US
PostalCode:     08889
RegDate:        1970-01-01
Updated:        2005-06-01
OfficePhone:    +1-908-423-1000
Mailbox:        anthony_starks@merck.com
Source:         ARIN


POCHandle:      WHITE7-ARIN
IsRole:         Y
LastName:       Whitehouse Telecom
FirstName:      
Street:         126 East Lincoln Ave
Street:         Rahway, NJ 07065
Street:         United States
City:           Rahway
State/Prov:     NJ
Country:        US
PostalCode:     07065
RegDate:        2005-11-11
Updated:        2025-11-05
OfficePhone:    +1-908-423-2900
Mailbox:        mark_shihata@merck.com
Mailbox:        ns_networknoc@merck.com
Mailbox:        pete_paiva@merck.com
Source:         ARIN

Overlapping Ranges

BGP prefixes that contain 155.91.26.0/24

Range	ASN	Company	Num of IPs
155.91.0.0/16	AS7054	Merck and Co., Inc.	65,536

Nearby Ranges

BGP prefixes that overlap with 155.91.0.0/16

Range	ASN	Company	Num of IPs
155.91.0.0/16	AS7054	Merck and Co., Inc.	65,536

Hosted domains

There are 45 domain names hosted across 2 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
155.91.26.4	dordecostas.com.pt	44
155.91.26.5	msdophthalmics.com	1

Hosted domains API

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Useful for Cybersecurity

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Pingable IPs

No IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

Other Pingable IPs

Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.

IP Address	ASN	Details
184.191.93.8	AS22773 Cox Communications Inc.	`1.50ms` from Ashburn, US
117.221.200.8	AS9829 National Internet Backbone	`11.84ms` from Bengaluru, IN
124.232.233.152	AS4134 CHINANET-BACKBONE	`1.12ms` from Changsha, CN
68.12.241.120	AS22773 Cox Communications Inc.	`7.98ms` from Dallas, US
20.221.82.168	AS8075 Microsoft Corporation	`0.31ms` from Des Moines, US
46.39.82.104	AS21310 Satellite Ltd	`7.95ms` from Kyiv, UA
86.132.185.248	AS2856 British Telecommunications PLC	`4.76ms` from London, GB
76.95.174.56	AS20001 Charter Communications Inc	`4.97ms` from Los Angeles, US
193.125.211.232	AS12430 VODAFONE ESPANA S.A.U.	`10.02ms` from Madrid, ES
90.241.216.24	AS5378 Vodafone Limited	`3.38ms` from Manchester, GB
84.8.228.136	AS31898 Oracle Corporation	`2.49ms` from Milan, IT
200.148.220.88	AS10429 TELEFÔNICA BRASIL S.A	`1.55ms` from Osasco, BR
135.180.188.168	AS46375 Sonic Telecom LLC	`1.83ms` from San Jose, US
5.180.220.56	AS203061 UAB code200	`0.18ms` from Tokyo, JP
77.118.78.88	AS8437 Hutchison Drei Austria GmbH	`2.15ms` from Vienna, AT
149.56.131.200	AS16276 OVH SAS	`0.14ms` from Beauharnois, CA
180.101.159.216	AS4134 CHINANET-BACKBONE	`6.12ms` from Huai'an, CN
58.7.6.120	AS4739 Internode Pty Ltd	`7.24ms` from Perth, AU
20.64.235.152	AS8075 Microsoft Corporation	`0.34ms` from Quincy, US
186.69.18.168	AS14522 SERVICIOS DE TELECOMUNICACIONES SETEL S.A. (XTRIM EC)	`0.89ms` from Quito, EC
52.3.223.8	AS14618 Amazon.com, Inc.	`0.20ms` from Reston, US
186.205.202.168	AS28573 Claro NXT Telecomunicacoes Ltda	`8.79ms` from Rio de Janeiro, BR
189.171.33.8	AS8151 UNINET	`12.30ms` from Santiago de Queretaro, MX
175.231.28.152	AS4766 Korea Telecom	`1.67ms` from Seoul, KR
163.228.236.104	AS58593 Shanghai Blue Cloud Technology Co.,Ltd	`6.12ms` from Tianjin, CN

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.

traceroute -a -n -q1 -m7 155.91.26.141

traceroute to 155.91.26.141 (155.91.26.141): 7 hops max, 52 byte packets

1 [AS15169] 142.251.65.164 6.894 ms

2 *

3 *

4 [AS3356] 4.34.18.6 61.219 ms

5 *

6 *

7 *

Measurement taken from

IPinfo ProbeNet in Las Vegas, US

On January 19th 2026

What are IP address ranges?

IP address ranges, or netblocks, are groups of related IP addresses. They are usually represented as a base IP address, followed by a slash, and then a netmask which represents how many IP addresses are contained within the netblock. This format is known as CIDR. You'll also sometimes see netblocks given as a start ip address, and an end ip address, or an ip address range.

Traffic works its way around the internet based on the routing table, which contains a list of networks and their associated netblocks.

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