Each peering LAN has a BGP route collector. A BGP session with the collector is used for statistics gathering and is also made available via the Looking Glass as a diagnostics tool for peers.

INXASNIPv4 
JINX37474196.223.14.32001:43f8:1f0::3
CINX37663196.223.22.32001:43f8:1f1::3
DINX37668196.223.30.32001:43f8:1f2::3