165.112.136.0/21

AS3527 · National Institutes of Health

Need more data or want to access it via API or data downloads? Sign up to get free access

Summary

Country	United States
Domain	nih.gov
ASN	AS3527
Parent Range	165.112.0.0/16
Registry	ARIN
ID	NIHNET-4-B

WHOIS Details

NetHandle:      NET-165-112-0-0-1
OrgID:          NIH-Z
Parent:         NET-165-0-0-0-0
NetName:        NIHNET-4-B
NetRange:       165.112.0.0 - 165.112.255.255
NetType:        allocation
RegDate:        1993-05-19
Updated:        2022-10-28
Source:         ARIN


OrgID:          NIH-Z
OrgName:        National Institutes of Health
CanAllocate:    
Street:         9000 Rockville Pike
Street:         MSC 4805
City:           Bethesda
State/Prov:     MD
Country:        US
PostalCode:     20892-4805
RegDate:        2022-10-09
Updated:        2025-06-05
OrgAdminHandle: NIHAD-ARIN
OrgTechHandle:  NIHTE-ARIN
OrgAbuseHandle: NIHTE-ARIN
OrgNOCHandle:   NIHAD-ARIN
OrgRoutingHandle:   NIHTE-ARIN
OrgDNSHandle:   NIHAD-ARIN
Source:         ARIN


POCHandle:      NIHAD-ARIN
IsRole:         Y
LastName:       NIHadm
FirstName:      
Street:         6555 Rock Sping DrRM 3se21m MSC 4805
City:           Bethesda
State/Prov:     MD
Country:        US
PostalCode:     20892-4805
RegDate:        2020-08-11
Updated:        2025-04-08
OfficePhone:    +1-301-402-3141
Mailbox:        citnsarin@mail.nih.gov
Source:         ARIN


POCHandle:      NIHTE-ARIN
IsRole:         Y
LastName:       NIHtechs
FirstName:      
Street:         6555 Rock Sping Dr
Street:         RM 3se21m MSC 4805
City:           Bethesda
State/Prov:     MD
Country:        US
PostalCode:     20892-4805
RegDate:        2020-06-24
Updated:        2025-04-08
OfficePhone:    +1-301-402-3141
Mailbox:        citnsarin@mail.nih.gov
Source:         ARIN

Overlapping Ranges

BGP prefixes that contain 165.112.136.0/21

Range	ASN	Company	Num of IPs
165.112.0.0/16	AS30387	National Institutes of Health	65,536
165.112.0.0/16	AS3527	National Institutes of Health	65,536
165.112.0.0/16	AS393689	National Institutes of Health	65,536

Nearby Ranges

BGP prefixes that overlap with 165.112.0.0/16

Range	ASN	Company	Num of IPs
165.112.0.0/16	AS30387	National Institutes of Health	65,536
165.112.0.0/16	AS3527	National Institutes of Health	65,536
165.112.0.0/16	AS393689	National Institutes of Health	65,536

Hosted domains

There are no domains currently hosted on this ASN.

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

Read more

Pingable IPs

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

IP Address	ASN	Details
165.112.142.148	AS3527 National Institutes of Health	`4.56ms` from Ashburn, US
165.112.140.129	AS393689 National Library of Medicine	`0.77ms` from Ashburn, 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
185.57.58.149	AS15211 Square, Inc.	`0.28ms` from Ashburn, US
103.7.130.229	AS132215 Powergrid Teleservices Limited	`1.58ms` from Chennai, IN
40.99.34.101	AS8075 Microsoft Corporation	`0.23ms` from Dongnae, KR
18.192.205.229	AS16509 Amazon.com, Inc.	`0.45ms` from Frankfurt am Main, DE
61.131.78.149	AS4134 CHINANET-BACKBONE	`5.35ms` from Fuzhou, CN
27.68.55.149	AS7552 Viettel Group	`5.93ms` from Ho Chi Minh City, VN
185.29.0.5	AS204558 Odyssey Systems Ltd	`0.15ms` from London, GB
40.99.151.149	AS8075 Microsoft Corporation	`0.37ms` from London, GB
64.33.3.229	AS24255 Koshinomiyako Network, Inc.	`4.02ms` from Osaka, JP
192.178.213.101	AS15169 Google LLC	`0.19ms` from Oudeschip, NL
4.242.183.85	AS8075 Microsoft Corporation	`0.21ms` from Phoenix, US
62.168.31.133	AS13036 T-Mobile Czech Republic a.s.	`0.80ms` from Prague, CZ
38.44.108.69	AS272097 TELEVISION POR CABLE COCATEVE S.A. (GRUPO COCAVISION)	`6.29ms` from Quito, EC
87.21.5.181	AS3269 Telecom Italia S.p.A.	`4.14ms` from Rome, IT
40.78.58.213	AS8075 Microsoft Corporation	`0.58ms` from San Jose, US
61.82.5.101	AS4766 Korea Telecom	`2.13ms` from Seoul, KR
125.124.183.197	AS58461 CT-HangZhou-IDC	`4.94ms` from Shanghai, CN
35.79.139.21	AS16509 Amazon.com, Inc.	`0.18ms` from Tokyo, JP
35.77.143.69	AS16509 Amazon.com, Inc.	`0.14ms` from Tokyo, JP
45.78.113.53	AS23252 WTC Communications	`3.27ms` from Toronto, CA
217.165.24.53	AS5384 Emirates Internet	`4.42ms` from Al Fujairah City, AE
82.172.6.69	AS50266 Odido Netherlands B.V.	`3.75ms` from Amsterdam, NL
49.224.46.85	AS9500 One New Zealand Group Limited	`19.40ms` from Auckland, NZ
125.80.158.181	AS4134 CHINANET-BACKBONE	`2.48ms` from Chongqing, CN
150.109.155.5	AS132203 Tencent Building, Kejizhongyi Avenue	`0.48ms` from Hong Kong, HK

Traceroute

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

traceroute -a -n -q1 -f5 -m10 165.112.137.169

traceroute to 165.112.137.169 (165.112.137.169): 10 hops max, 52 byte packets

5 [AS21859] 128.1.9.238 0.637 ms

6 *

7 [AS4229] 98.98.231.202 0.734 ms

8 *

9 *

10 *

Measurement taken from

IPinfo ProbeNet in Bangkok, TH

On December 14th 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.

An API built with users in mind: reliable, accurate, and easy-to-use

Discover why industry-leading companies around the globe love our data. IPinfo's accurate insights fuel use cases from cybersecurity, data enrichment, web personalization, and much more.

Get Started for Free Contact Sales