The Venezuelan Numbering Plan is an open telephone numbering plan with three-digit area codes and seven-digit telephone numbers that directs telephone calls to particular regions on a public switched telephone network (PSTN) or to a mobile telephone network, where they are further routed by the local network. The last revision of the current numbering plan is September 21, 2000. Example landline calls (using Caracas as reference): 5551212 (within metropolitan area) 0212 5551212 (within Venezuela, Caracas excluded)011 58 212 5551212 (from the U.S./Canada to Venezuela)