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:      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

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

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

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

IP Address	ASN	Details
128.231.3.15	AS3527 National Institutes of Health	`4.34ms` 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
73.40.254.24	AS7922 Comcast Cable Communications, LLC	`12.41ms` from Ashburn, US
46.103.121.136	AS3329 VODAFONE-PANAFON HELLENIC TELECOMMUNICATIONS COMPANY SA	`5.31ms` from Athens, GR
136.111.67.232	AS396982 Google LLC	`0.12ms` from Council Bluffs, US
223.236.146.216	AS24560 Bharti Airtel Ltd., Telemedia Services	`9.41ms` from Delhi, IN
52.173.196.120	AS8075 Microsoft Corporation	`0.36ms` from Des Moines, US
185.169.127.200	AS199163 DATAGROUP Operations GmbH	`0.53ms` from Frankfurt am Main, DE
31.209.205.56	AS6677 Mila hf	`1.18ms` from Hafnarfjoerdur, IS
95.39.163.104	AS6739 VODAFONE ONO, S.A.	`4.98ms` from Madrid, ES
52.60.61.248	AS16509 Amazon.com, Inc.	`0.13ms` from Montreal, CA
13.203.178.72	AS16509 Amazon.com, Inc.	`0.16ms` from Mumbai, IN
88.90.234.104	AS2119 Telenor Norge AS	`6.18ms` from Oslo, NO
192.210.254.200	AS36352 HostPapa	`0.28ms` from Santa Clara, US
116.127.207.136	AS9318 SK Broadband Co Ltd	`7.34ms` from Seoul, KR
46.11.79.200	AS15735 GO p.l.c.	`1.41ms` from Swieqi, MT
49.255.148.104	AS4826 Vocus Connect International Backbone	`0.54ms` from Sydney, AU
118.174.111.88	AS23969 TOT Public Company Limited	`10.34ms` from Bangkok, TH
24.247.10.120	AS20115 Charter Communications LLC	`11.52ms` from Chicago, US
149.160.165.72	AS27198 Indiana University	`6.73ms` from Chicago, US
18.60.43.200	AS16509 Amazon.com, Inc.	`1.25ms` from Hyderabad, IN
129.215.203.184	AS786 Jisc Services Limited	`11.44ms` from London, GB
218.224.117.152	AS4713 NTT DOCOMO BUSINESS,Inc.	`12.46ms` from Osaka, JP
88.174.253.216	AS12322 Free SAS	`9.69ms` from Paris, FR
193.251.82.40	AS3215 Orange S.A.	`2.04ms` from Paris, FR
41.215.223.72	AS37517 CABO VERDE TELECOM, S.A	`2.04ms` from Praia, CV
179.155.13.184	AS28573 Claro NXT Telecomunicacoes Ltda	`6.99ms` from Rio de Janeiro, BR

Traceroute

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

traceroute -a -n -q1 -f3 -m9 128.231.3.8

traceroute to 128.231.3.8 (128.231.3.8): 9 hops max, 52 byte packets

3 [AS749] 11.16.250.122 9.996 ms

4 *

5 *

6 [AS21859] 98.98.117.202 30.57 ms

7 *

8 *

9 *

Measurement taken from

IPinfo ProbeNet in Jakarta, ID

On December 6th 2025

What are IP address ranges?

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