PHP WHOIS provides parsed and raw whois lookup of domains and ASN routes. PHP 8.0 compatible (5.4+ old versions)

A PHP library to encode and decode arbitrary ASN.1 structures using ITU-T X.690 encoding rules.

CIDRAM: Classless Inter-Domain Routing Access Manager.

A PHP library for ASN.1 DER encoding and decoding.

Official PHP library for IPfinder

A lot of IP lookups only query ARIN, this is a quick and easy example how to query the correct whois databases to get the IP address network owners

PHP library for parsing IP address related data from RIRs WHOIS responses

Automatically exported from code.google.com/p/peerlist