IP lookup: 4.2.2.1

4.2.2.1 is a public IPv4 address. As a 32-bit number it equals 67240449, and its leading octet places it in the traditional class A range.

In classless routing it falls inside 4.2.2.0/24: host addresses 4.2.2.1 to 4.2.2.254, with 4.2.2.255 as that block's broadcast address. The wider 4.0.0.0/8 block shows its position in the IPv4 space.

Its reverse-DNS name is 1.2.2.4.in-addr.arpa — the PTR name a resolver queries to map 4.2.2.1 back to a hostname.

PipeIP recorded Level 3 Communications, Inc. as the operator of 4.2.2.1 on 2026-08-20, announced by AS3356.

At capture time the PTR record for 4.2.2.1 identified it as part of a public DNS resolver service.

Geolocation, ISP naming and the current PTR answer are live values that can change, so they are loaded below instead of being frozen here.