Carl Moore (VLD/VMB) <cmoore@brl.mil> (02/01/90)
Uncertainty over the city code here; phone number copied from pay phone at Daventry service area (on motorway between Liverpool and London): (03272) 78284 (Elsewhere, I saw city code as 0327 and even as 032? 03272 seems to be indicated, for the length standardization.) I could not find a phone book for Gatwick, only for London. Pay phones at Gatwick (city code 0293); note the differing lengths: 34352 31633 (these two were in gate 17) 511453 512600 519582 22241 30250 30620 35295 512770 511452 519581 517907 17906 517905 517908 511641
pkh%computer-science.nottingham.ac.uk@nsfnet-relay.ac.uk (Kevin Hopkins) (02/07/90)
In v10i68 Carl Moore (VLD/VMB) <cmoore@brl.mil> said:
-> Uncertainty over the city code here; phone number copied from pay
-> phone at Daventry service area (on motorway between Liverpool and
-> London): (03272) 78284 (Elsewhere, I saw city code as 0327 and even as
-> 032? 03272 seems to be indicated, for the length standardization.)
UK area codes are currently of varying length. Here is a list of the
area code/subscriber number combinations. In the following N=2..9;
M=0,2..9 (no digit 1); X=0..9. EEE=NXX, EE=NX.
i) The major metropolitan areas have codes of the form 0N1 (except 01
which becomes 071/081 in May 1990). The complete number is then given
as 0N1-EEE XXXX (e.g. 061-434 0000 could be a Manchester number)
where EEE is the exchange (CO) number. 434 is a Withington exchange.
ii) All the other areas have area codes of the form 0NMX. The complete
number is 0NMX-EEXXXX (e.g. 0602-810000 could be a Nottingham number)
where EE is the exchange number. 81 is a West Bridgford exchange.
Those two are the main form of UK 'phone numbers. Some of the
exchanges have not be modernised, though, and this gives rise to two
sub-classes of class ii) numbers:
iii) Some numbers have the normal class ii) length area code and a shorter
subscriber number (usually 5 digits instead of 6).
iv) Other numbers have a longer area code and a shorter subscriber
number. Thus the exchange part of the number is actually included in
the area code, and can be 1 or 2 digits (I think). This leads to area
code lengths of 5 or 6 digits and they are not normally written as
one string of digits but as three digits and then the rest,
e.g. 032 733, 029 12 (Chepstow). This leads to some multiple area
codes like 0327 (Daventry), 032 733 (Paulerspury) and 032 736
(Preston Capes) which are actually exchanges 33 and 36 of 0327. These
last two codes only apply to 3 figure subscriber codes and the full 6
digit numbers are now part of the Daventry code. This is the way
numbers are changed into 4 figure area codes when the exchanges are
modernised.
-> I could not find a phone book for Gatwick, only for London.
-> Pay phones at Gatwick (city code 0293); note the differing
-> lengths:
-> 34352 31633 (these two were in gate 17)
-> 511453 512600 519582 22241 30250 30620 35295
-> 512770 511452 519581 517907 17906 517905 517908
-> 511641
(17906 is an invalid number so I presume it is actually 517906)
Using the above explanation this means that 51 exchange has been
modernised but the 22, 30, 31, 34 and 35 exchanges are still of the
older variety. This, of course, being within the Crawley area code
(0293) which also serves Gatwick Airport.
I hope that clears things up.
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| K.Hopkins%cs.nott.ac.uk@nsfnet-relay.ac.uk | Kevin Hopkins, |
| or ..!mcsun!ukc!nott-cs!K.Hopkins | Department of Computer Science,|
| or in the UK: K.Hopkins@uk.ac.nott.cs | University of Nottingham, |
| CHAT-LINE: +44 602 484848 x 3815 | Nottingham, ENGLAND, NG7 2RD |
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