137.187.0.0/16

AS3527 · National Institutes of Health

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Summary

Country	United States
Domain	nih.gov
ASN	AS3527
Registry	ARIN
ID	NIHNET-2

WHOIS Details

NetHandle:      NET-137-187-0-0-1
OrgID:          NIH-Z
Parent:         NET-137-0-0-0-0
NetName:        NIHNET-2
NetRange:       137.187.0.0 - 137.187.255.255
NetType:        allocation
RegDate:        1989-12-13
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:      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


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

Nearby Ranges

BGP prefixes that overlap with 137.0.0.0/8

Range	ASN	Company	Num of IPs
137.176.0.0/13	AS11003	The Procter and Gamble Company	524,288
137.18.0.0/16	AS1999	U.S. House of Representatives	65,536
137.160.0.0/16	AS16509	Amazon.com, Inc.	65,536
137.114.0.0/16	AS16509	Amazon Technologies Inc.	65,536
137.113.0.0/16	AS19464	Washington & Lee University	65,536
137.28.0.0/16	AS19184	University of Wisconsin - Eau Claire	65,536
137.208.0.0/16	AS1776	Welthandelsplatz 1	65,536
137.87.0.0/16	AS14977	Wyoming Higher Education Computer Network	65,536
137.86.0.0/16	AS14977	Wyoming Higher Education Computer Network	65,536
137.74.0.0/16	AS16276	OVH SAS	65,536
137.58.0.0/16	AS158	Telefonaktiebolaget LM Ericsson	65,536
137.194.0.0/16	AS1712	Télécom Paris	65,536
137.51.0.0/16	AS1906	Northrop Grumman Corp.	65,536
137.19.0.0/16	AS16509	Amazon.com, Inc.	65,536
137.40.0.0/16	AS18071	Panasonic Information Systems Co., Ltd	65,536
137.61.0.0/16	AS15991	IT/GITS	65,536
137.202.0.0/16	AS13541	Siemens Industry Software Inc.	65,536
137.192.0.0/16	AS1347	Inteliquent, inc.	65,536
137.230.0.0/16	AS14381	Caterpillar, Inc.	65,536
137.99.0.0/16	AS13796	University of Connecticut	65,536
137.79.0.0/16	AS127	National Aeronautics and Space Administration	65,536
137.85.0.0/16	AS14977	Wyoming Higher Education Computer Network	65,536
137.88.0.0/16	AS14977	Wyoming Higher Education Computer Network	65,536
137.89.0.0/16	AS14977	Wyoming Higher Education Computer Network	65,536
137.17.0.0/16	AS1136	National Aerospace Laboratory	65,536
137.90.0.0/16	AS14977	Wyoming Higher Education Computer Network	65,536
137.216.0.0/16	AS11607	South Dakota State University	65,536
137.185.0.0/16	AS11003	The Procter and Gamble Company	65,536
137.207.0.0/16	AS11700	University of Windsor	65,536
137.16.0.0/16	AS16509	Amazon.com, Inc.	65,536
137.94.0.0/16	AS19737	Royal Military College of Canada	65,536
137.204.0.0/16	AS137	UNI-Bologna	65,536
137.188.0.0/16	AS12079	Verizon Wireless	65,536
137.53.0.0/16	AS11995	Oregon Health & Science University	65,536
137.120.0.0/16	AS1103	P.O.Box 616, 6200 MD, Maastricht, The Netherlands	65,536
137.101.0.0/16	AS12430	ORG-AMS1-RIPE	65,536
137.96.0.0/16	AS1234	Fortum Oyj	65,536
137.147.0.0/16	AS1221	Telstra Limited	65,536
137.124.0.0/16	AS11351	State University of New York College of Technology at Delhi	65,536
137.228.0.0/16	AS127	National Aeronautics and Space Administration	65,536
137.224.0.0/16	AS1103	Wageningen Universiteit	65,536
137.45.0.0/16	AS13783	Radford University	65,536
137.124.0.0/16	AS11351	State University of New York College of Technology at Delhi	65,536
137.78.0.0/16	AS127	National Aeronautics and Space Administration	65,536
137.15.0.0/16	AS14836	City of Toronto	65,536
137.192.0.0/16	AS14929	Inteliquent, inc.	65,536
137.36.0.0/16	AS11351	The State University of New York College of Agriculture and Technology at Cobleskill	65,536
137.154.0.0/16	AS10079	University of Western Sydney	65,536
137.56.0.0/16	AS1103	Universiteit van Tilburg	65,536
137.205.0.0/16	AS201773	University of Warwick	65,536

Hosted domains

There are 2 domain names hosted across 1 IP address on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
137.187.52.151	bomber166.com	2

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

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

IP Address	ASN	Details
137.187.10.214	AS3527 National Institutes of Health	`3.88ms` from Ashburn, US
137.187.172.24	AS3527 National Institutes of Health	`3.02ms` from Ashburn, US
137.187.200.161	AS3527 National Institutes of Health	`3.11ms` from Ashburn, US
137.187.55.40	AS3527 National Institutes of Health	`3.09ms` from Ashburn, US
137.187.223.143	AS3527 National Institutes of Health	`3.07ms` from Ashburn, US
137.187.173.50	AS3527 National Institutes of Health	`2.99ms` from Ashburn, US
137.187.61.42	AS3527 National Institutes of Health	`3.00ms` from Ashburn, US
137.187.52.138	AS3527 National Institutes of Health	`3.11ms` from Ashburn, US
137.187.246.54	AS3527 National Institutes of Health	`4.31ms` from Ashburn, US
137.187.12.114	AS3527 National Institutes of Health	`4.56ms` from Washington, US
137.187.34.58	AS3527 National Institutes of Health	`4.52ms` from Washington, US
137.187.216.61	AS3527 National Institutes of Health	`4.50ms` from Washington, 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
34.79.199.208	AS396982 Google LLC	`0.15ms` from Brussels, BE
132.194.145.224	AS16519 University of Colorado Denver	`2.89ms` from Denver, US
13.79.244.224	AS8075 Microsoft Corporation	`0.16ms` from Dublin, IE
175.138.222.240	AS4788 TM TECHNOLOGY SERVICES SDN. BHD.	`2.62ms` from Kuala Lumpur, MY
212.81.178.64	AS3262 SAREnet, S.A.	`0.88ms` from Madrid, ES
188.168.106.48	AS15774 Limited Liability Company "TTK-Svyaz"	`17.93ms` from Moscow, RU
52.66.168.224	AS16509 Amazon.com, Inc.	`0.15ms` from Mumbai, IN
211.139.124.16	AS56046 China Mobile communications corporation	`4.89ms` from Nanjing, CN
54.227.107.112	AS14618 Amazon.com, Inc.	`0.22ms` from Reston, US
24.10.137.224	AS7922 Comcast Cable Communications, LLC	`5.13ms` from Salt Lake City, US
14.60.158.208	AS4766 Korea Telecom	`5.24ms` from Seoul, KR
175.120.143.112	AS9318 SK Broadband Co Ltd	`5.91ms` from Seoul, KR
140.143.7.160	AS45090 Shenzhen Tencent Computer Systems Company Limited	`4.60ms` from Tianjin, CN
197.0.48.0	AS37705 TOPNET	`2.20ms` from Tunis, TN
83.65.215.32	AS8412 T-Mobile Austria GmbH	`8.21ms` from Vienna, AT
41.200.159.80	AS36947 Telecom Algeria	`14.27ms` from Algiers, DZ
24.223.102.16	AS4474 TCT West, Inc.	`12.48ms` from Denver, US
86.153.63.128	AS2856 British Telecommunications PLC	`4.88ms` from London, GB
34.120.250.176	AS396982 Google LLC	`0.08ms` from Melbourne, AU
66.229.116.144	AS7922 Comcast Cable Communications, LLC	`5.75ms` from Miami, US
218.226.115.176	AS9997 Suzuka Cable Co.,Ltd	`5.05ms` from Osaka, JP
162.159.213.96	AS13335 Cloudflare, Inc.	`0.12ms` from Porto Alegre, BR
54.236.147.48	AS14618 Amazon.com, Inc.	`0.21ms` from Reston, US
18.215.248.224	AS14618 Amazon.com, Inc.	`0.61ms` from Reston, US
54.153.28.0	AS16509 Amazon.com, Inc.	`0.16ms` from San Jose, US

Traceroute

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

traceroute -a -n -q1 -m6 137.187.24.148

traceroute to 137.187.24.148 (137.187.24.148): 6 hops max, 52 byte packets

1 [AS15169] 142.251.52.187 63.805 ms

2 [AS10886] 206.196.177.108 63.513 ms

3 [AS10886] 206.196.177.185 80.177 ms

4 *

5 *

6 *

Measurement taken from

IPinfo ProbeNet in Los Angeles, US

On October 30th 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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