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

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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:      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:        [email protected]
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:        [email protected]
Source:         ARIN

Nearby Ranges

BGP prefixes that overlap with 128.0.0.0/8

Range ASN Company Num of IPs
128.130.0.0/15 AS679 Technische Universitaet Wien 131,072
128.178.0.0/15 AS559 Ecublens Camp Net 131,072
128.78.0.0/15 AS5410 Bouygues Telecom SA 131,072
128.238.0.0/16 AS54965 Polytechnic University 65,536
128.198.0.0/16 AS396425 University of Colorado, Colorado Springs 65,536
128.60.0.0/16 AS48 Navy Network Information Center (NNIC) 65,536
128.236.0.0/16 AS391 Air Force Systems Networking 65,536
128.219.0.0/16 AS50 Oak Ridge National Laboratory 65,536
128.118.0.0/16 AS3999 The Pennsylvania State University 65,536
128.12.0.0/16 AS32 Stanford University 65,536
128.52.0.0/16 AS3 Massachusetts Institute of Technology 65,536
128.115.0.0/16 AS45 Lawrence Livermore National Laboratory 65,536
128.192.0.0/16 AS36441 University of Georgia 65,536
128.38.0.0/16 AS37 Navy Network Information Center (NNIC) 65,536
128.202.0.0/16 AS391 Air Force Systems Networking 65,536
128.34.0.0/16 AS22 Navy Network Information Center (NNIC) 65,536
128.39.0.0/16 AS224 UNINETT backbone network 65,536
128.170.0.0/16 AS243 L3Harris Technologies, Inc. 65,536
128.100.0.0/16 AS239 University of Toronto 65,536
128.156.0.0/16 AS297 National Aeronautics and Space Administration 65,536
128.18.0.0/16 AS264 SRI International 65,536
128.253.0.0/16 AS26 Cornell University 65,536
128.200.0.0/16 AS299 University of California, Irvine 65,536
128.29.0.0/16 AS35 The MITRE Corporation 65,536
128.190.0.0/16 AS367 Headquarters, USAISC 65,536
128.223.0.0/16 AS3582 University of Oregon 65,536
128.255.0.0/16 AS3676 University of Iowa 65,536
128.205.0.0/16 AS3685 State University of New York at Buffalo 65,536
128.124.0.0/16 AS21497 PrJSC VF UKRAINE 65,536
128.139.0.0/16 AS378 IUCC - Israel InterUniversity Computation Center 65,536
128.206.0.0/16 AS26934 University of Missouri-Columbia 65,536
128.15.0.0/16 AS45 Lawrence Livermore National Laboratory 65,536
128.93.0.0/16 AS2200 Institut National de Recherche en Informatique et Automatique 65,536
128.49.0.0/16 AS22 Navy Network Information Center (NNIC) 65,536
128.246.0.0/16 AS209781 BASF Digital Solutions GmbH 65,536
128.143.0.0/16 AS225 University of Virginia 65,536
128.163.0.0/16 AS23162 University of Kentucky 65,536
128.233.0.0/16 AS22950 University of Saskatchewan 65,536
128.101.0.0/16 AS217 University of Minnesota 65,536
128.98.0.0/16 AS24775 QinetiQ TIM 65,536
128.137.0.0/16 AS2047 Genentech, Inc. 65,536
128.47.0.0/16 AS252 Headquarters, USAISC 65,536
128.252.0.0/16 AS2552 Washington University 65,536
128.186.0.0/16 AS2553 Florida State University 65,536
128.84.0.0/16 AS26 Cornell University 65,536
128.195.0.0/16 AS299 University of California, Irvine 65,536
128.141.0.0/16 AS513 CERN Campus dynamic addresses 65,536
128.163.0.0/16 AS396261 University of Kentucky 65,536
128.175.0.0/16 AS34 University of Delaware 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 nationalinstitutesof.health 3
128.231.19.108 tox21.gov 2
128.231.19.104 ncats.io 2
128.231.198.7 niaid.health 2
128.231.89.150 hhsoig.gov 1
128.231.91.30 genome.gov 1
128.231.198.6 nih.app 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

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

IP Address ASN Details
128.231.2.73 AS3527 National Institutes of Health 4.42ms from Herndon, US
128.231.54.247 AS3527 National Institutes of Health 4.03ms from Ashburn, US
128.231.125.179 AS3527 National Institutes of Health 4.49ms from Washington, US
128.231.88.40 AS3527 National Institutes of Health 4.48ms from Washington, US
128.231.89.26 AS3527 National Institutes of Health 4.16ms from Ashburn, US
128.231.17.25 AS3527 National Institutes of Health 4.38ms from Herndon, US
128.231.19.106 AS3527 National Institutes of Health 3.95ms from Ashburn, US
128.231.152.221 AS3527 National Institutes of Health 4.32ms from Herndon, US
128.231.153.122 AS3527 National Institutes of Health 4.47ms from Washington, US
128.231.91.235 AS3527 National Institutes of Health 4.43ms from Herndon, US
128.231.64.71 AS3527 National Institutes of Health 4.51ms from Washington, US
128.231.0.52 AS3527 National Institutes of Health 4.49ms from Washington, US
128.231.3.15 AS3527 National Institutes of Health 4.34ms from Ashburn, US
128.231.69.237 AS3527 National Institutes of Health 3.77ms from Ashburn, US
128.231.124.154 AS3527 National Institutes of Health 4.41ms from Herndon, US
128.231.128.230 AS3527 National Institutes of Health 4.49ms from Washington, US
128.231.95.117 AS3527 National Institutes of Health 4.48ms from Washington, US
128.231.58.117 AS3527 National Institutes of Health 4.86ms from Ashburn, US
128.231.148.101 AS3527 National Institutes of Health 4.44ms from Herndon, US
128.231.87.120 AS3527 National Institutes of Health 4.45ms from Washington, US
128.231.243.251 AS3527 National Institutes of Health 4.39ms from Herndon, US
128.231.244.194 AS3527 National Institutes of Health 1.90ms from Ashburn, US
128.231.255.119 AS3527 National Institutes of Health 4.42ms from Washington, US
128.231.210.13 AS3527 National Institutes of Health 3.77ms 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
76.65.172.192 AS577 Bell Canada 2.74ms from Montreal, CA
73.233.61.208 AS7922 Comcast Cable Communications, LLC 8.41ms from New York City, US
45.207.46.32 AS401366 Vox Flow LLC 2.31ms from Ashburn, US
20.190.220.0 AS8075 Microsoft Corporation 0.45ms from Boydton, US
190.173.209.208 AS22927 Telefonica de Argentina 2.18ms from Buenos Aires, AR
98.230.203.64 AS7922 Comcast Cable Communications, LLC 13.31ms from Denver, US
186.68.15.16 AS14522 SERVICIOS DE TELECOMUNICACIONES SETEL S.A. (XTRIM EC) 1.60ms from Guayaquil, EC
115.227.179.144 AS4134 CHINANET-BACKBONE 4.45ms from Hangzhou, CN
98.196.40.16 AS7922 Comcast Cable Communications, LLC 4.26ms from Houston, US
94.62.238.16 AS12353 Vodafone Portugal 3.32ms from Lisbon, PT
79.169.182.240 AS2860 NOS COMUNICACOES, S.A. 7.89ms from Lisbon, PT
34.206.182.128 AS14618 Amazon.com, Inc. 0.15ms from Reston, US
125.183.146.16 AS17858 LG POWERCOMM 5.87ms from Seoul, KR
114.119.160.112 AS136907 HUAWEI CLOUDS 1.51ms from Singapore, SG
114.17.61.128 AS2516 KDDI CORPORATION 2.52ms from Tokyo, JP
125.195.238.32 AS2518 BIGLOBE Inc. 18.46ms from Tokyo, JP
86.104.102.48 AS58224 Iran Telecommunication Company PJS 15.03ms from Yerevan, AM
41.133.235.176 AS20011 Dimension Data 1.36ms from Cape Town, ZA
119.51.161.224 AS4837 CHINA UNICOM China169 Backbone 3.56ms from Changchun, CN
70.119.189.192 AS11427 Charter Communications Inc 5.32ms from Dallas, US
64.182.168.96 AS54489 CoreSpace, Inc. 0.85ms from Dallas, US
81.227.5.32 AS3301 Telia Company AB 6.09ms from Goeteborg, SE
212.104.27.32 AS28716 Retelit Digital Services S.p.A. 0.32ms from Milan, IT
113.121.106.80 AS4134 CHINANET-BACKBONE 6.75ms from Qingdao, CN
187.220.176.112 AS8151 UNINET 4.80ms from Santiago de Queretaro, MX

Traceroute

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

$
traceroute -a -n -q1 -m5 128.231.52.236
traceroute to 128.231.52.236 (128.231.52.236): 5 hops max, 52 byte packets
3 *
4 *
5 *
Measurement taken from IPinfo ProbeNet in Ashburn, US
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.

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