216.203.88.0/21

AS27021 · Quest Diagnostics, Inc.

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Summary

Country	United States
Domain	questdiagnostics.com
ASN	AS27021
Registry	ARIN
ID	NET-DGX

WHOIS Details

NetHandle:      NET-216-203-80-0-1
OrgID:          QUEST-3
Parent:         NET-216-0-0-0-0
NetName:        NET-DGX
NetRange:       216.203.80.0 - 216.203.95.255
NetType:        allocation
RegDate:        2002-09-30
Updated:        2021-12-14
Source:         ARIN


OrgID:          QUEST-3
OrgName:        Quest Diagnostics, Inc.
CanAllocate:    
Street:         1290 Wall Street West
City:           Lyndhurst
State/Prov:     NJ
Country:        US
PostalCode:     07071
RegDate:        2002-09-30
Updated:        2014-09-24
OrgAdminHandle: QDT-ARIN
OrgTechHandle:  MONAC4-ARIN
OrgTechHandle:  QDT-ARIN
OrgAbuseHandle: MONAC4-ARIN
OrgAbuseHandle: QDT-ARIN
OrgNOCHandle:   MONAC4-ARIN
OrgNOCHandle:   QDT-ARIN
Source:         ARIN


POCHandle:      QDT-ARIN
IsRole:         Y
LastName:       Quest Diagnostics Tech
FirstName:      
Street:         1290 Wall Street West
City:           Lyndhurst
State/Prov:     NJ
Country:        US
PostalCode:     07071
RegDate:        2003-10-16
Updated:        2025-06-10
OfficePhone:    +1-877-537-8378
Mailbox:        inf-tech@questdiagnostics.com
Mailbox:        ip-tech@questdiagnostics.com
Source:         ARIN


POCHandle:      MONAC4-ARIN
IsRole:         N
LastName:       Monaco
FirstName:      Chris
Street:         400 Egypt Road
City:           Norristown
State/Prov:     PA
Country:        US
PostalCode:     19403
RegDate:        2014-01-14
Updated:        2025-07-14
OfficePhone:    +1-610-631-4654
MobilePhone:    +1-610-631-4654
FaxPhone:       +1-610-631-4654
Mailbox:        chris.l.monaco@questdiagnostics.com
Source:         ARIN

Hosted domains

There are 6 domain names hosted across 4 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
216.203.92.238	populationlabinsights.com	1

Hosted domains API

Our Hosted Domains API, or Reverse IP API returns a full list of domains that are hosted on a single IP address.

Useful for Cybersecurity

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Pingable IPs

80 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
216.203.95.15	AS27021 Quest Diagnostics, Inc.	`1.11ms` from Dallas, US
216.203.88.90	AS27021 Quest Diagnostics, Inc.	`1.01ms` from St. Louis, US
216.203.90.68	AS27021 Quest Diagnostics, Inc.	`1.28ms` from St. Louis, US
216.203.92.23	AS27021 Quest Diagnostics, Inc.	`1.50ms` from Dallas, US
216.203.93.174	AS27021 Quest Diagnostics, Inc.	`1.53ms` from Dallas, US
216.203.91.221	AS27021 Quest Diagnostics, Inc.	`1.04ms` from St. Louis, US

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
23.222.195.133	AS16625 Akamai Technologies, Inc.	`0.17ms` from Ashburn, US
97.149.196.21	AS6167 Verizon Business	`13.13ms` from Chicago, US
27.8.62.21	AS4837 CHINA UNICOM China169 Backbone	`3.20ms` from Chongqing, CN
47.38.177.181	AS20115 Charter Communications LLC	`6.58ms` from Dallas, US
223.6.166.133	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`4.54ms` from Hangzhou, CN
190.28.74.21	AS13489 UNE EPM TELECOMUNICACIONES S.A.	`1.42ms` from Medellin, CO
34.129.60.165	AS396982 Google LLC	`0.08ms` from Melbourne, AU
165.161.12.5	AS394700 The School District of Palm Beach County	`1.73ms` from Miami, US
89.96.239.149	AS12874 Fastweb SpA	`0.91ms` from Milan, IT
182.167.106.53	AS17511 OPTAGE Inc.	`2.38ms` from Osaka, JP
193.8.187.165	AS214238 HOST TELECOM LTD	`0.15ms` from Paris, FR
86.238.26.213	AS3215 Orange S.A.	`2.16ms` from Paris, FR
104.161.51.197	AS53755 Input Output Flood LLC	`0.73ms` from Phoenix, US
191.41.38.53	AS26615 TIM S/A	`1.22ms` from Rio de Janeiro, BR
122.178.75.53	AS24560 Bharti Airtel Ltd., Telemedia Services	`11.25ms` from Saint Thomas Mount, IN
3.168.91.21	AS16509 Amazon.com, Inc.	`0.20ms` from San Jose, US
47.40.17.69	AS20115 Charter Communications LLC	`13.00ms` from St. Louis, US
52.62.181.213	AS16509 Amazon.com, Inc.	`0.13ms` from Sydney, AU
82.81.97.53	AS8551 Bezeq International Ltd.	`3.29ms` from Tel Aviv, IL
181.95.207.5	AS7303 Telecom Argentina S.A.	`9.54ms` from Asuncion, PY
156.228.184.5	AS200373 3xK Tech GmbH	`0.37ms` from Berlin, DE
2.245.16.165	AS6805 Telefonica Germany GmbH & Co.OHG	`2.97ms` from Berlin, DE
157.253.83.245	AS3603 University de Los Andes	`4.04ms` from Bogota, CO
208.71.199.85	AS10694 Monster Worldwide, Inc.	`4.00ms` from Boston, US
187.201.11.69	AS8151 UNINET	`0.87ms` from Guadalajara, MX

Traceroute

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

traceroute -a -n -q1 -m7 216.203.89.78

traceroute to 216.203.89.78 (216.203.89.78): 7 hops max, 52 byte packets

1 [AS40021] 209.126.0.12 5.507 ms

2 *

3 [AS3356] 4.69.142.29 5.433 ms

4 [AS3356] 4.7.52.242 7.024 ms

5 *

6 *

7 *

Measurement taken from

IPinfo ProbeNet in St. Louis, US

On August 28th 2025

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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