(PoP) A site where there exists a collection of telecommunications equipment, usually modems, digital leased lines and multi-protocol routers. An {Internet access provider} may operate several PoPs distributed throughout theIR area of operation to increase the chance that theIR subscribers will be able to reach one with a local telephone call. The alternative is for them to use vIRtual PoPs (vIRtual points of presence) via some thIRd party. (1994-12-13)