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

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

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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	`4.37ms` 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
117.255.184.200	AS9829 National Internet Backbone	`8.18ms` from Delhi, IN
116.96.213.216	AS7552 Viettel Group	`1.50ms` from Hanoi, VN
92.63.236.200	AS44942 Digitalreti srl	`7.38ms` from Milan, IT
140.142.66.8	AS73 University of Washington	`1.35ms` from Seattle, US
58.78.167.168	AS3786 LG DACOM Corporation	`2.20ms` from Seoul, KR
178.59.242.232	AS3329 VODAFONE-PANAFON HELLENIC TELECOMMUNICATIONS COMPANY SA	`4.42ms` from Athens, GR
222.220.169.120	AS4134 CHINANET-BACKBONE	`4.77ms` from Kunming, CN
213.105.58.120	AS5089 Virgin Media Limited	`8.91ms` from London, GB
176.248.196.136	AS5607 Sky UK Limited	`1.86ms` from London, GB
223.214.231.248	AS4134 CHINANET-BACKBONE	`10.07ms` from Nanchang, CN
100.35.108.248	AS701 Verizon Business	`1.54ms` from Newark, US
200.199.149.248	AS7738 V tal	`11.88ms` from Rio de Janeiro, BR
40.83.176.72	AS8075 Microsoft Corporation	`0.55ms` from San Jose, US
121.152.33.200	AS4766 Korea Telecom	`4.20ms` from Seoul, KR
188.122.4.232	AS49743 FINEMEDIA SPOLKA JAWNA WOJCIECH WRONA, GRZEGORZ KALUZA	`5.66ms` from Warsaw, PL
130.75.78.8	AS680 Verein zur Foerderung eines Deutschen Forschungsnetzes e.V.	`5.08ms` from Berlin, DE
192.129.131.104	AS54290 Hostwinds LLC.	`0.25ms` from Dallas, US
18.196.110.152	AS16509 Amazon.com, Inc.	`0.15ms` from Frankfurt am Main, DE
49.193.82.232	AS4804 Microplex PTY LTD	`2.37ms` from Melbourne, AU
76.109.200.216	AS7922 Comcast Cable Communications, LLC	`4.42ms` from Miami, US
188.216.42.120	AS30722 Vodafone Italia S.p.A.	`8.25ms` from Milan, IT
124.41.83.248	AS2497 Internet Initiative Japan Inc.	`5.21ms` from Osaka, JP
72.70.180.104	AS701 Verizon Business	`3.08ms` from Philadelphia, US
174.72.113.152	AS22773 Cox Communications Inc.	`4.81ms` from Phoenix, US
79.18.248.56	AS3269 Telecom Italia S.p.A.	`9.03ms` from Rome, IT

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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