Lookup of 81.161.240.3
IP address: 81.161.240.3
Address type: IPv4
Host or reverse DNS (rDNS): tu-sofia.bg
Country: 
Bulgaria
81.161.240.3 does NOT belong to a private IP address block.
81.161.240.3 does NOT belong to a reserved IP address block.
IP address 81.161.240.3
IP address: 81.161.240.3
Address type: IPv4
Host or reverse DNS (rDNS): tu-sofia.bg
Country: Bulgaria
81.161.240.3 does NOT belong to a private IP address block.
81.161.240.3 does NOT belong to a reserved IP address block.
There are different formats or notations how the IP address 81.161.240.3 can be represented.
Dotted decimal: 81.161.240.3
Hexadecimal: 0x51A1F003
Dotted hex: 0x51.0xA1.0xF0.0x03
Decimal: 1369567235
Octal: 0121.0241.0360.0003
Binary: 01010001.10100001.11110000.00000011