165.112.0.0/21

AS30387 · National Institutes of Health

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Summary

Country	United States
Domain	nih.gov
ASN	AS30387
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
OriginAS:       3527
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 165.112.0.0/21

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

Hosted domains

There is 1 domain name hosted across 1 IP address 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

9 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	`5.54ms` from Ashburn, US
165.112.7.21	AS393689 National Library of Medicine	`0.64ms` 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
12.127.199.85	AS7018 AT&T Enterprises, LLC	`1.52ms` from Ashburn, US
71.65.111.101	AS10796 Charter Communications Inc	`16.07ms` from Chicago, US
50.57.95.21	AS19994 Rackspace Hosting	`1.39ms` from Chicago, US
50.82.218.133	AS30036 Mediacom Communications Corp	`6.42ms` from Chicago, US
177.4.44.53	AS8167 V tal	`11.71ms` from Curitiba, BR
72.179.117.245	AS11427 Charter Communications Inc	`12.32ms` from Dallas, US
73.76.129.165	AS7922 Comcast Cable Communications, LLC	`10.74ms` from Dallas, US
23.207.34.69	AS20940 Akamai International B.V.	`0.10ms` from Melbourne, AU
79.35.144.5	AS3269 Telecom Italia S.p.A.	`12.16ms` from Milan, IT
89.175.194.5	AS8359 MTS PJSC	`1.74ms` from Moscow, RU
103.175.190.5	AS141514 Sancfil Technologies Internet Services Pvt. Ltd.	`0.19ms` from Mumbai, IN
180.56.163.69	AS4713 NTT Communications Corporation	`5.16ms` from Osaka, JP
61.22.190.85	AS9824 JCOM Co., Ltd.	`18.75ms` from Osaka, JP
35.230.214.69	AS396982 Google LLC	`0.25ms` from Oudeschip, NL
27.221.9.101	AS4837 CHINA UNICOM China169 Backbone	`0.69ms` from Qingdao, CN
3.222.39.69	AS14618 Amazon.com, Inc.	`0.21ms` from Reston, US
18.209.92.229	AS14618 Amazon.com, Inc.	`0.18ms` from Reston, US
176.45.45.37	AS25019 Saudi Telecom Company JSC	`1.78ms` from Riyadh, SA
187.146.246.69	AS8151 UNINET	`8.37ms` from Santiago de Queretaro, MX
112.156.230.5	AS17858 LG POWERCOMM	`7.46ms` from Seoul, KR
49.247.155.37	AS38700 SMILESERV	`1.40ms` from Seoul, KR
178.214.6.5	AS51390 MTM-INFO S.J. Mariusz Pikor, Tomasz Taczanski	`6.22ms` from Warsaw, PL
143.178.130.117	AS50266 Odido Netherlands B.V.	`5.28ms` from Amsterdam, NL
216.202.210.5	AS3356 Level 3 Parent, LLC	`0.20ms` from Atlanta, US
39.155.160.229	AS56048 China Mobile Communicaitons Corporation	`1.23ms` from Beijing, CN

Traceroute

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

traceroute -a -n -q1 -m6 165.112.7.142

traceroute to 165.112.7.142 (165.112.7.142): 6 hops max, 52 byte packets

1 [AS15169] 108.170.233.255 13.877 ms

2 *

3 [AS11537] 163.253.1.146 14.459 ms

4 *

5 *

6 *

Measurement taken from

IPinfo ProbeNet in Montreal, CA

On September 4th 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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