81.4.19.21
The public IP address 81.4.19.21 belongs to ASN 0. Please have a look at the tables below for full details about 81.4.19.21 , or use the IP Lookup tool to find the approximate IP location for any public IP address.
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81.4.19.21 IP Address Location
Reverse IP (PTR ) none
ASN unknown
ISP / Organizationunknown IP Connection Type Unknown [internet speed test ]
IP Location unknown
IP Continent unknown
IP Country unknown
IP State n/a
IP City unknown
IP Postcode unknown
IP Coordinates n/a IP Timezone unknown
IP Local Time n/a
IANA IPv4 Address Space Allocation for Subnet 81.0.0.0/8
IPv4 Address Space Prefix 081/8
Regional Internet Registry (RIR) RIPE NCC
Allocation Date April 2001
WHOIS Server whois.ripe.net
RDAP Serverhttps://rdap.db.ripe.net/
Status ALLOCATEDDelegated entirely to specific RIR (Regional Internet Registry) as indicated.
81.4.19.21 IP Address Representations
CIDR Notation 81.4.19.21/32
Decimal Notation 1359221525
Hexadecimal Notation 0x51041315
Octal Notation 012101011425
Binary Notation 1010001000001000001001100010101
Dotted-Decimal Notation 81.4.19.21
Dotted-Hexadecimal Notation 0x51.0x04.0x13.0x15
Dotted-Octal Notation 0121.04.023.025
Dotted-Binary Notation 01010001.00000100.00010011.00010101