Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!csd4.csd.uwm.edu!bionet!agate!ucbvax!tut.cis.ohio-state.edu!brutus.cs.uiuc.edu!wuarchive!texbell!vector!telecom-gateway From: mike@whutt.att.com (Michael Scott Baldwin) Newsgroups: comp.dcom.telecom Subject: Re: International Access Codes Around the World Message-ID: Date: 19 Aug 89 21:31:12 GMT Sender: news@vector.Dallas.TX.US Organization: AT&T Bell Laboratories Lines: 24 Approved: telecom-request@vector.dallas.tx.us X-Submissions-To: telecom@eecs.nwu.edu X-Administrivia-To: telecom-request@vector.dallas.tx.us X-TELECOM-Digest: volume 9, issue 311, message 1 of 10 * Why is 00 more logical than 009 (or 011 in Canada and the US), or 0011 * (in Australia)? > 00, whether more logical or not is certainly the most widespread, at > least in Europe and the Med. It's because 00 is recommended by CCITT as the international prefix. | When dialing into a country from outside, the leading zero must be | stripped off the area code. Strictly speaking, that 0 isn't part of the area code (called `trunk code' by CCITT); it's the trunk prefix code. Again, CCITT recommends using 0. Some confusion might be caused by the CCITT national number format, which is (trunk code) subscriber number or (trunk prefix + code) subscriber number In the USA, we never put the trunk prefix in the parens, but other countries often do; thus, (020) 22 88 28 in Amsterdam is really trunk code 20. The trunk prefix is never dialed in international dialing. The E.100 series of CCITT recommendations talks about this stuff. -- michael.scott.baldwin@att.com (bell laboratories)