165.112.0.0/20

AS3527 · National Institutes of Health

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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 165.112.0.0/20

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 2 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

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

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

IP Address	ASN	Details
165.112.4.248	AS30387 National Institutes of Health	`5.67ms` from Ashburn, US
165.112.7.19	AS393689 National Library of Medicine	`0.62ms` from Ashburn, US
165.112.9.229	AS393689 National Library of Medicine	`0.30ms` from Ashburn, US
165.112.11.4	AS393689 National Library of Medicine	`0.59ms` from Ashburn, US
165.112.15.167	AS30387 National Institutes of Health	`3.05ms` 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
76.208.42.36	AS7018 AT&T Enterprises, LLC	`12.02ms` from Atlanta, US
40.176.147.84	AS16509 Amazon.com, Inc.	`1.59ms` from Calgary, CA
64.20.227.36	AS27325 zColo	`6.37ms` from Dallas, US
104.133.249.196	AS36384 Google LLC	`0.92ms` from London, GB
191.91.72.228	AS27831 Colombia Móvil	`17.22ms` from Medellin, CO
115.226.194.52	AS4134 CHINANET-BACKBONE	`9.65ms` from Nanchang, CN
54.85.158.20	AS14618 Amazon.com, Inc.	`0.23ms` from Reston, US
8.53.115.116	AS3356 Level 3 Parent, LLC	`0.32ms` from Seattle, US
112.181.197.52	AS4766 Korea Telecom	`1.78ms` from Seoul, KR
1.107.160.164	AS4766 Korea Telecom	`2.37ms` from Seoul, KR
1.246.45.100	AS9318 SK Broadband Co Ltd	`3.26ms` from Seoul, KR
123.51.198.100	AS9919 New Century InfoComm Tech Co., Ltd.	`0.80ms` from Taipei, TW
94.172.235.36	AS9141 P4 Sp. z o.o.	`11.11ms` from Warsaw, PL
1.193.58.180	AS4134 CHINANET-BACKBONE	`4.77ms` from Zhengzhou, CN
151.233.121.212	AS58224 Iran Telecommunication Company PJS	`14.46ms` from Az Za`ayin, QA
191.220.173.228	AS8167 V tal	`4.40ms` from Brasilia, BR
88.224.100.20	AS9121 Turk Telekomunikasyon Anonim Sirketi	`5.49ms` from Bursa, TR
172.75.173.52	AS11426 Charter Communications Inc	`6.93ms` from Charlotte, US
51.187.224.100	AS5607 Sky UK Limited	`1.46ms` from Dublin, IE
165.227.130.100	AS14061 DigitalOcean, LLC	`0.46ms` from Frankfurt am Main, DE
121.54.189.228	AS62468 VpsQuan L.L.C.	`2.74ms` from Hong Kong, HK
23.121.214.84	AS7018 AT&T Enterprises, LLC	`12.10ms` from Kansas City, US
132.198.47.20	AS1351 University of Vermont	`8.33ms` from New York City, US
91.22.8.196	AS3320 Deutsche Telekom AG	`6.73ms` from Nuernberg, DE
123.219.120.20	AS4713 NTT DOCOMO BUSINESS,Inc.	`6.70ms` from Osaka, JP

Traceroute

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

traceroute -a -n -q1 -m5 165.112.8.144

traceroute to 165.112.8.144 (165.112.8.144): 5 hops max, 52 byte packets

1 [AS9211] 213.238.35.1 0.196 ms

2 [AS9211] 212.12.33.138 0.263 ms

3 *

4 *

5 *

Measurement taken from

IPinfo ProbeNet in Hamburg, DE

On November 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.

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