128.231.245.0/24

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 128.231.245.0/24

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
117.242.200.24	AS9829 National Internet Backbone	`14.18ms` from Bengaluru, IN
192.182.47.152	AS5650 Frontier Communications of America, Inc.	`5.16ms` from Chicago, US
47.223.123.40	AS19108 Optimum	`12.13ms` from Dallas, US
79.212.201.56	AS3320 Deutsche Telekom AG	`6.52ms` from Frankfurt am Main, DE
123.20.105.40	AS45899 VNPT Corp	`1.37ms` from Ho Chi Minh City, VN
72.220.186.120	AS22773 Cox Communications Inc.	`7.69ms` from Los Angeles, US
179.217.86.216	AS28573 Claro NXT Telecomunicacoes Ltda	`8.40ms` from Osasco, BR
34.202.6.56	AS14618 Amazon.com, Inc.	`0.19ms` from Reston, US
191.39.82.56	AS4230 CLARO S.A.	`2.40ms` from Rio de Janeiro, BR
96.126.97.104	AS63949 Akamai Connected Cloud	`0.14ms` from Santa Clara, US
85.128.247.8	AS15967 Nazwa.pl Sp.z.o.o.	`0.32ms` from Sao Paulo, BR
180.83.26.184	AS17858 LG POWERCOMM	`2.11ms` from Seoul, KR
125.178.225.200	AS17858 LG POWERCOMM	`1.34ms` from Seoul, KR
77.91.139.216	AS12975 PALTEL Autonomous System	`7.37ms` from Tel Aviv, IL
77.163.184.104	AS1136 KPN B.V.	`1.18ms` from Amsterdam, NL
121.79.252.216	AS17705 InSPire Net Ltd	`8.60ms` from Auckland, NZ
85.97.97.24	AS9121 Turk Telekomunikasyon Anonim Sirketi	`19.34ms` from Bursa, TR
24.208.236.120	AS10796 Charter Communications Inc	`9.20ms` from Columbus, US
130.192.16.120	AS137 Consortium GARR	`4.33ms` from Milan, IT
88.124.92.184	AS12322 Free SAS	`3.25ms` from Paris, FR
86.215.212.120	AS3215 Orange S.A.	`5.82ms` from Paris, FR
123.135.40.40	AS4837 CHINA UNICOM China169 Backbone	`7.00ms` from Qingdao, CN
175.205.29.104	AS4766 Korea Telecom	`3.56ms` from Seoul, KR
212.64.4.88	AS45090 Shenzhen Tencent Computer Systems Company Limited	`1.38ms` from Shanghai, CN
180.4.55.104	AS4713 NTT DOCOMO BUSINESS,Inc.	`2.83ms` from Tokyo, JP

Traceroute

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

traceroute -a -n -q1 -f2 -m6 128.231.245.124

traceroute to 128.231.245.124 (128.231.245.124): 6 hops max, 52 byte packets

2 [AS9009] 83.97.21.128 5.715 ms

3 [AS8529] 185.200.126.18 5.02 ms

4 *

5 *

6 *

Measurement taken from

IPinfo ProbeNet in Dubai, AE

On November 14th 2025

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.

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