There is no UK area code of 0204.
London uses the area code of 020 but there are no telephone numbers beginning (020) 4... yet.
If by "0204" you are in fact referring to part of the local phone number after the 020 area code, there are three possibilities:
(020) 3020 4xxx
Issued by phone company Imovo.
(020) 7020 4xxx
Issued by phone company Cable and Wireless.
(020) 8020 4xxx
Issued by phone company Teledesign.
None of these companies make public any more precise location information. The numbers in question could be anywhere in London, inner or outer - or not in London at all, even.
The telephone country code for Zimbabwe is +263. The area code for Karoi is 064, or +263 64 in international format.
There is no telephone area code 185 in Russia.
No, telephone area codes are discrete data.
The telephone country code for Zimbabwe is +263. The area code for Beitbridge is 0286, or +263 286 in international format.
Telephone country code +93 is Afghanistan, and area code +93 25 (Afghan domestic telephone area code 025) is the city of Logar, south of Kabul.
The telephone country code for Zimbabwe is +263. The area code for Chakari is 0688, or +263 688 in international format.
Area code of Banepa is 011
It has the area code 082.
The telephone country code for Zimbabwe is +263. The area code for Glendale is 0376, or +263 376 in international format.
Mashhad is in Iranian telephone area code 0511, which is +98 511 in international format.
The telephone area code for Bwizibwera, Uganda, is 0485, or +256 485 in international format.
The telephone area code for Gulu, Uganda, is 0471, or +256 471 in international format.