A variable length,e.g.,between 2 and 5 inGermany,Argentina,United Kingdom and inAustria; between 1 and 5 inJapan; 1 or 2 inSyria andPeru,orIncorporated into the subscriber's number,as is the case in many countries,such asSpain orNorway. This is known as a "closed" telephone numbering plan. In some cases a trunk code (usually 0 ) must still be dialed,as inBelgium,Italy,Switzerland,South Africa and some locations within theNANP.