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Free tools · IP address lookup

IP address 121.18.148.23

121.18.148.23 is a public IPv4 address announced by AS4837 (CHINA169-BACKBONE CHINA UNICOM China169), registered in China. See its threat-intelligence verdict, network block, reverse DNS name and reputation links in one place, free.

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Any IPv4 or IPv6 address. Private and reserved ranges are explained, but never sent to outside sources.

Address profile

121.18.148.23

IPv4 · Public address
Public

Ordinary routable internet space, allocated by a regional internet registry to a network operator. The reputation of an address like this is worth checking: it can belong to a hosting provider, a company, a home connection or a mobile network, and its history travels with it.

Announced by AS4837 · CHINA169-BACKBONE CHINA UNICOM China169
Network registered in 🇨🇳 China
Decimal
2031260695
Hexadecimal
0x79129417
Binary
01111001.00010010.10010100.00010111
Reverse DNS name
23.148.18.121.in-addr.arpa
As IPv6
::ffff:121.18.148.23

The networks around it

The /24 around it 121.18.148.0/24 121.18.148.0 to 121.18.148.255 256 addresses
The /16 121.18.0.0/16 121.18.0.0 to 121.18.255.255 65,536 addresses
The /8 121.0.0.0/8 121.0.0.0 to 121.255.255.255 16,777,216 addresses

Checking 121.18.148.23 against our threat intelligence and the public registries…

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