128.231.3.0/24

AS3527 · National Institutes of Health

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Summary

Country	United States
Domain	nih.gov
ASN	AS3527
Parent Range	128.231.0.0/16
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:        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 128.231.3.0/24

Range	ASN	Company	Num of IPs
128.231.0.0/16	AS3527	National Institutes of Health	65,536

Nearby Ranges

BGP prefixes that overlap with 128.231.0.0/16

Range	ASN	Company	Num of IPs
128.231.0.0/16	AS3527	National Institutes of Health	65,536

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity

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Pingable IPs

No IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

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
117.252.54.88	AS9829 National Internet Backbone	`13.12ms` from Chennai, IN
130.241.121.24	AS2842 Goteborgs universitet	`0.77ms` from Goeteborg, SE
212.74.249.56	AS50340 JSC Selectel	`0.69ms` from Moscow, RU
181.217.140.8	AS28573 Claro NXT Telecomunicacoes Ltda	`4.83ms` from Novo Hamburgo, BR
175.123.193.120	AS9318 SK Broadband Co Ltd	`1.98ms` from Seoul, KR
172.225.64.120	AS36183 Akamai Technologies, Inc.	`0.09ms` from Sydney, AU
167.179.106.104	AS20473 The Constant Company, LLC	`0.18ms` from Tokyo, JP
61.23.61.136	AS9824 JCOM Co., Ltd.	`11.68ms` from Tokyo, JP
141.244.97.184	AS1117 Universitaet fur Bodenkultur, Wien	`1.04ms` from Vienna, AT
182.119.238.232	AS4837 CHINA UNICOM China169 Backbone	`1.18ms` from Zhengzhou, CN
117.97.164.8	AS24560 Bharti Airtel Ltd., Telemedia Services	`2.92ms` from Ahmedabad, IN
102.41.79.24	AS8452 TE-AS	`2.59ms` from Cairo, EG
207.147.22.120	AS10770 AT&T Enterprises, LLC	`0.71ms` from Chicago, US
20.109.216.216	AS8075 Microsoft Corporation	`0.37ms` from Des Moines, US
179.198.177.152	AS7738 V tal	`12.24ms` from Fortaleza, BR
109.193.149.120	AS3209 Vodafone GmbH	`10.02ms` from Frankfurt am Main, DE
189.163.105.184	AS8151 UNINET	`1.05ms` from Guadalajara, MX
178.218.242.8	AS208507 Mitsubishi HC Capital UK PLC	`1.44ms` from London, GB
82.42.230.152	AS5089 Virgin Media Limited	`14.39ms` from London, GB
73.30.118.200	AS7922 Comcast Cable Communications, LLC	`6.84ms` from New York City, US
88.86.125.152	AS39392 SH.cz s.r.o.	`0.29ms` from Prague, CZ
184.72.105.40	AS14618 Amazon.com, Inc.	`0.29ms` from Reston, US
18.215.51.72	AS14618 Amazon.com, Inc.	`0.22ms` from Reston, US
115.1.187.8	AS4766 Korea Telecom	`2.74ms` from Seoul, KR
175.202.8.136	AS4766 Korea Telecom	`4.81ms` from Seoul, KR

Traceroute

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

traceroute -a -n -q1 -m10 128.231.3.168

traceroute to 128.231.3.168 (128.231.3.168): 10 hops max, 52 byte packets

1 [AS208450] 45.136.59.1 1.071 ms

2 [AS41371] 88.151.180.149 0.437 ms

3 *

4 [AS35104] 185.48.150.113 7.017 ms

5 [AS43727] 178.210.56.1 28.979 ms

6 [] 5.187.73.95 52.339 ms

7 [AS35598] 176.99.143.158 36.436 ms

8 *

9 *

10 *

Measurement taken from

IPinfo ProbeNet in Aktau, KZ

On November 6th 2025

What are IP address ranges?

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