128.231.128.251 🇺🇸

The public IP address 128.231.128.251 is located in Fairfax, Virginia, 22030, United States. It is assigned to the ISP National Institutes of Health. The address belongs to ASN 3527 which is delegated to NIH-NET.
Please have a look at the tables below for full details about 128.231.128.251, or use the IP Lookup tool to find the approximate IP location for any public IP address.

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128.231.128.251 IP Address Location

Reverse IP (PTR)ns.nih.gov
ASN3527 (NIH-NET)
ISP / OrganizationNational Institutes of Health
IP Connection TypeCable/DSL [internet speed test]
IP LocationFairfax, Virginia, 22030, United States
IP ContinentNorth America
IP Country🇺🇸 United States (US)
IP StateVirginia (VA)
IP CityFairfax
IP Postcode22030
IP Latitude38.8476 / 38°50′51″ N
IP Longitude-77.3281 / 77°19′41″ W
IP TimezoneAmerica/New_York
IP Local Time

IANA IPv4 Address Space Allocation for Subnet 128.0.0.0/8

IPv4 Address Space Prefix128/8
Regional Internet Registry (RIR)Administered by ARIN
Allocation Date
WHOIS Serverwhois.arin.net
RDAP Serverhttps://rdap.arin.net/registry, http://rdap.arin.net/registry
StatusLEGACY
Allocated by the central Internet Registry (IR) prior to the Regional Internet Registries (RIRs). This address space is now administered by individual RIRs as noted, including maintenance of WHOIS Directory and reverse DNS records. Assignments from these blocks are distributed globally on a regional basis.

128.231.128.251 IP Address Representations

CIDR Notation128.231.128.251/32
Decimal Notation2162655483
Hexadecimal Notation0x80e780fb
Octal Notation020071700373
Binary Notation10000000111001111000000011111011
Dotted-Decimal Notation128.231.128.251
Dotted-Hexadecimal Notation0x80.0xe7.0x80.0xfb
Dotted-Octal Notation0200.0347.0200.0373
Dotted-Binary Notation10000000.11100111.10000000.11111011