1. All IP Ranges
  2. 128.0.0.0/8
  3. 128.231.0.0/16
  4. AS3527  | 128.231.0.0/16

128.231.0.0/16

AS3527  ·  National Institutes of Health

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

Sign up for free ›

Summary

Country United States
Domain nih.gov
ASN AS3527
Registry ARIN
ID NIHNET-1

WHOIS Details

NetHandle:      NET-128-231-0-0-1
OrgID:          NIH-Z
Parent:         NET-128-0-0-0-0
NetName:        NIHNET-1
NetRange:       128.231.0.0 - 128.231.255.255
NetType:        allocation
RegDate:        1987-05-06
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 128.0.0.0/8

Range ASN Company Num of IPs
128.78.0.0/15 AS5410 Bouygues Telecom SA 131,072
128.130.0.0/15 AS679 Technische Universitaet Wien 131,072
128.178.0.0/15 AS559 Ecublens Camp Net 131,072
128.40.0.0/16 AS786 University College London 65,536
128.49.0.0/16 AS22 Navy Network Information Center (NNIC) 65,536
128.16.0.0/16 AS786 University College London 65,536
128.243.0.0/16 AS786 The University of Nottingham 65,536
128.54.0.0/16 AS7377 University of California, San Diego 65,536
128.234.0.0/16 AS25019 Saudi Telecom Company JSC 65,536
128.142.0.0/16 AS513 CERN LCG network 65,536
128.141.0.0/16 AS513 CERN Campus dynamic addresses 65,536
128.242.0.0/16 AS2914 NTT America, Inc. 65,536
128.114.0.0/16 AS5739 University of California, Santa Cruz 65,536
128.240.0.0/16 AS786 University of Newcastle upon Tyne 65,536
128.123.0.0/16 AS40246 New Mexico State University 65,536
128.120.0.0/16 AS6192 University of California, Davis 65,536
128.244.0.0/16 AS77 Johns Hopkins University Applied Physics Laboratory 65,536
128.143.0.0/16 AS225 University of Virginia 65,536
128.100.0.0/16 AS239 University of Toronto 65,536
128.32.0.0/16 AS25 University of California at Berkeley 65,536
128.60.0.0/16 AS48 Navy Network Information Center (NNIC) 65,536
128.6.0.0/16 AS46 Rutgers, The State University 65,536
128.121.0.0/16 AS2914 NTT America, Inc. 65,536
128.241.0.0/16 AS2914 NTT America, Inc. 65,536
128.108.0.0/16 AS45090 Tencent Cloud Computing (Beijing) Co., Ltd 65,536
128.12.0.0/16 AS32 Stanford University 65,536
128.232.0.0/16 AS786 University of Cambridge Computer Laboratory 65,536
128.184.0.0/16 AS7645 Deakin University 65,536
128.29.0.0/16 AS35 The MITRE Corporation 65,536
128.174.0.0/16 AS38 University of Illinois 65,536
128.218.0.0/16 AS5653 University of California San Francisco 65,536
128.124.0.0/16 AS21497 PrJSC VF UKRAINE 65,536
128.34.0.0/16 AS22 Navy Network Information Center (NNIC) 65,536
128.93.0.0/16 AS2200 Institut National de Recherche en Informatique et Automatique 65,536
128.39.0.0/16 AS224 UNINETT backbone network 65,536
128.233.0.0/16 AS22950 University of Saskatchewan 65,536
128.163.0.0/16 AS23162 University of Kentucky 65,536
128.170.0.0/16 AS243 L3Harris Technologies, Inc. 65,536
128.98.0.0/16 AS24775 QinetiQ TIM 65,536
128.156.0.0/16 AS297 National Aeronautics and Space Administration 65,536
128.53.0.0/16 AS2514 NTT PC Communications,Inc. 65,536
128.28.0.0/16 AS2514 NTT PC Communications,Inc. 65,536
128.194.0.0/16 AS3794 Texas A&M University 65,536
128.186.0.0/16 AS2553 Florida State University 65,536
128.36.0.0/16 AS29 Yale University 65,536
128.253.0.0/16 AS26 Cornell University 65,536
128.84.0.0/16 AS26 Cornell University 65,536
128.226.0.0/16 AS4190 Binghamton University 65,536
128.139.0.0/16 AS378 IUCC - Israel InterUniversity Computation Center 65,536

Hosted domains

There are 12 domain names hosted across 7 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
128.231.198.5 nci-wiki.com 3
128.231.19.104 ncats.io 2
128.231.198.7 niaid.health 2
128.231.19.108 tox21.gov 2
128.231.198.6 nih.app 1
128.231.91.30 genome.gov 1
128.231.89.150 hhsoig.gov 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
Read more

Pingable IPs

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

IP Address ASN Details
128.231.128.251 AS3527 National Institutes of Health 2.32ms from Ashburn, US
128.231.89.167 AS3527 National Institutes of Health 2.07ms from Ashburn, US
128.231.210.91 AS3527 National Institutes of Health 2.05ms from Ashburn, US
128.231.54.233 AS3527 National Institutes of Health 2.22ms from Ashburn, US
128.231.2.76 AS3527 National Institutes of Health 2.21ms from Ashburn, US
128.231.0.52 AS3527 National Institutes of Health 2.41ms from Ashburn, US
128.231.69.223 AS3527 National Institutes of Health 2.02ms from Ashburn, US
128.231.87.120 AS3527 National Institutes of Health 2.39ms from Ashburn, US
128.231.58.118 AS3527 National Institutes of Health 3.09ms from Ashburn, US
128.231.152.209 AS3527 National Institutes of Health 2.04ms from Ashburn, US
128.231.1.195 AS3527 National Institutes of Health 2.04ms from Ashburn, US
128.231.17.24 AS3527 National Institutes of Health 2.17ms from Ashburn, US
128.231.125.179 AS3527 National Institutes of Health 2.16ms from Ashburn, US
128.231.148.100 AS3527 National Institutes of Health 1.94ms from Ashburn, US
128.231.149.221 AS3527 National Institutes of Health 2.19ms from Ashburn, US
128.231.153.33 AS3527 National Institutes of Health 1.97ms from Ashburn, US
128.231.243.242 AS3527 National Institutes of Health 1.99ms from Ashburn, US
128.231.64.1 AS3527 National Institutes of Health 2.63ms from Ashburn, US
128.231.244.194 AS3527 National Institutes of Health 2.17ms from Ashburn, US
128.231.3.15 AS3527 National Institutes of Health 4.56ms from Ashburn, US
128.231.90.198 AS3527 National Institutes of Health 2.63ms from Ashburn, US
128.231.91.30 AS3527 National Institutes of Health 2.25ms from Ashburn, US
128.231.88.5 AS3527 National Institutes of Health 2.12ms from Ashburn, US
128.231.124.153 AS3527 National Institutes of Health 2.02ms from Ashburn, US
128.231.255.119 AS3527 National Institutes of Health 2.10ms 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
1.92.140.112 AS55990 Huawei Cloud Service data center 3.67ms from Beijing, CN
80.84.196.0 AS35205 RFT kabel Brandenburg GmbH 1.37ms from Berlin, DE
65.188.88.144 AS11426 Charter Communications Inc 6.74ms from Charlotte, US
107.138.103.32 AS7018 AT&T Enterprises, LLC 2.51ms from Chicago, US
63.179.222.96 AS16509 Amazon.com, Inc. 0.22ms from Frankfurt am Main, DE
176.142.181.16 AS5410 Bouygues Telecom SA 8.80ms from Frankfurt am Main, DE
14.231.49.96 AS45899 VNPT Corp 1.45ms from Hanoi, VN
43.199.158.80 AS16509 Amazon.com, Inc. 0.13ms from Hong Kong, HK
112.142.149.32 AS208525 Airu Limited 1.00ms from Hong Kong, HK
85.104.91.80 AS9121 Turk Telekomunikasyon Anonim Sirketi 3.40ms from Istanbul, TR
149.90.35.96 AS12353 Vodafone Portugal 5.77ms from Lisbon, PT
88.16.151.240 AS3352 TELEFONICA DE ESPANA S.A.U. 9.71ms from Madrid, ES
58.70.64.48 AS17511 OPTAGE Inc. 1.77ms from Osaka, JP
58.143.9.0 AS10036 DLIVE 1.63ms from Seoul, KR
220.65.20.0 AS38669 LG HelloVision Corp. 3.44ms from Seoul, KR
121.149.134.176 AS4766 Korea Telecom 8.26ms from Seoul, KR
124.70.156.240 AS55990 Huawei Cloud Service data center 2.99ms from Suzhou, CN
218.12.89.176 AS4837 CHINA UNICOM China169 Backbone 10.23ms from Tianjin, CN
113.158.165.144 AS2516 KDDI CORPORATION 9.59ms from Tokyo, JP
109.241.45.240 AS29314 VECTRA S.A. 12.39ms from Warsaw, PL
97.180.218.240 AS6167 Verizon Business 17.75ms from Boston, US
197.50.133.80 AS8452 TE-AS 4.04ms from Cairo, EG
40.177.210.208 AS16509 Amazon.com, Inc. 1.67ms from Calgary, CA
185.141.144.80 AS48374 MH HOLDING AF 1. JUNI 2009 ApS 0.29ms from Copenhagen, DK
102.219.172.32 AS328865 The Office of the Minister of State in the President's Office 8.19ms from Dar es Salaam, TZ

Traceroute

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

$
traceroute -a -n -q1 -f3 -m10 128.231.146.10
traceroute to 128.231.146.10 (128.231.146.10): 10 hops max, 52 byte packets
3 [AS3356] 4.69.226.70 89.04 ms
4 [AS3356] 4.16.68.166 90.378 ms
6 [AS19050] 156.40.93.156 90.819 ms
7 [AS19050] 156.40.93.157 91.165 ms
8 *
9 *
10 *
Measurement taken from IPinfo ProbeNet in Amsterdam, NL
On

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
IPinfo for all your IP geolocation needs

Our IP tools

Explore all tools
What is my IP

What is my IP

Test our data accuracy by viewing insights from your IP address.

See your IP address
Map IPs

Map IPs

Paste up to 500,000 IPs to see where they're located on a map.

Try Map IPs
Summarize IPs

Summarize IPs

Use our data visualization tool to create a visual overview of multiple IPs.

Try Summarize IPs