Številke železnic po UIC
Številke ( oznake ) železnic - 3 in 4 številka po UIC
10 VR - Valtionrautatiet (Finland)
12 TF - Transfesa freight car pool
14 CIWL - Compagnie Internationale des Wagons-Lits [P] (new, was 66)
19 ENS - European Night Services (Great Britain)
20 RZD - Rossije Zeleznyje Dorogi (Russia)
21 BCZ - Bielorusse Zeleznue Dorogi (Belarus)
22 UZ - UkrZaliznyza (Ukraine)
23 CFM - Caile Ferate Moldova (Moldova)
24 LG - Lietuvos Gelezinkeliu (Lithuania)
25 LDZ - Latvijas Dzelzcels (Latvia)
26 EVR - Eesti Vabariigi Raudtee (Estonia)
27 KHZ - Kazakstan Temir Zelvi (Kazakhstan)
28 GR (Georgia)
29 SAZ (Uzbekistan)
30 KNDR - Zosun Minzuzui Inmingonghoagug (North Korea)
31 MNR - Mongolin Tomor Zam (Mongolia)
32 DSVN - Dung Sat Viet-Nam (Vietnam)
33 KNR - Zhung Guo Tie Lu (China)
34 PBr - Chemin de fer Pont-Brassus [P] (Swiss)
35 RVT - Chemin de fer Régional du Val de Travers [P] (Swiss)
36 CJ - Chemins de fer du Jura and GFM - Gruy?re-Fribourg-Morat [P] (Swiss)
37 STB - Sensetalbahn [P] (Swiss)
38 EBT SMB VHB - Emmental-Burgdorf-Thun group [P] (Swiss)
40 (was FC - Ferrocariles de Cuba (Cuba))
41 HSH - Hekurudhe e Shqiperise (Albania)
42 JR - Japan Rail (Japan)
43 GySEV - Gyor-Sopron-Ebenfurthi Vasut [P] (Hungary/Austria)
44 ZRS - Zeljeznice Republice Srpske (Bosnia-Hercegovina)
45 GKB - Graz-Köflacher Eisenbahn [P] (Austria)
46 MThB - Mittelthurgaubahn [P] (Swiss)
47 SOB - Schweizerische Südostbahn [P] (Swiss)
48 BT - Bodensee-Toggenburg [P] (Swiss)
49 RhB - Rhätische Bahn [P] (Swiss)
50 ZBH - Zeleznica Bosnia-Herzegovina (Bosnia-Herzegovina)
51 PKP - Polskie Koleje Panstwowe (Poland)
52 BDZ - Bulgarski Durzavni Zeleznici (Bulgaria)
53 CFR - Caile Ferate Romane (Romania)
54 CD - Ceske Drahy (Czechia)
55 MAV - Magyar Allamvasutak (Hungary)
56 ZSR - Zeleznice Slovenskej Republiky (Slovakia)
57 AZ (Azebaija)
58 ARM (Armenia)
59 KRG (Kirgistan)
60 IE - Iarnrod Eireann (Ireland)
61 KNR (South Corea) (was ANZ - Chemins de fer Anzin [P] (France))
62 SP - Schweizerische Privatbahnen (freight pool) [P] (Swiss)
63 BLS - Lötschbergbahn [P] (Swiss)
64 FNM - Ferrovie Nord-Milano [P] (Italy)
65 MZ - Macedonskih Zeleznica (Macedonia)
66 TZD (Tadjikistan) (was CIWL, which is now 14)
67 TRK (Turkmenistan)
68 BE AEE - Bentheimer/Ahaus-Enscheder Eisenbahn [P] (Netherlands-Germany)
69 Eurotunnel [P] (Great Britain/France)
70 British Railways (Great Britain)
71 RENFE - Red Nacional de los Ferrocariles Espanoles (Spain)
72 JZ - Zajednica Jugoslovenskih Zeleznica (Yugoslavia)
73 OSE - Organismos Sidirodromon Ellados (Greece)
74 SJ - Statens Järnvägar (Sweden)
75 TCDD - Turkiye Cumhuriyeti Devlet Demiryollari Isletmesi (Turkey)
76 NSB - Norges Statsbaner (Norway)
78 HZ - Hrvatske Zeljeznice (Croatia)
79 SZ - Slovenske Zeleznice (Slovenia)
80 DBAG - Deutsche Bahn AG, former DB material (Germany)
81 ÖBB - Österreichische Bundesbahnen (Austria)
82 CFL - Societe Nationale des Chemins de Fer Luxemburgeois (Luxemburg)
83 FS - Ferrovie dello Stato (Italy)
84 NS - Nederlandse Spoorwegen (The Netherlands)
85 SBB CFF FFS - Schweizerische Bundesbahnen (Switzerland)
86 DSB - Danske Statsbaner (Denmark)
87 SNCF - Societe Nationale des Chemins de fer Francais (France)
88 SNCB - Societe Nationale des Chemins de fer Belges (Belgium)
90 ER - Egypt Railways (Egypt)
91 SNCFT - Societe Nationale des Chemins de fer Tunisiens (Tunesia)
92 SNTF - Societe Nationale des Transports Ferroviaires (Algeria)
93 ONCFM - Office National des Chemins de fer du Maroc (Morocco)
94 CP - Caminhos de Ferro Portugueses (Portugal)
95 IR - Israel Railways (Israel)
96 RAI - Rahahane Djjomhouriye Eslami Iran (Iran)
97 CFS - Administration Generale des Chemins de Fer Syriens (Syria)
98 CEL - Office des Chemins de fer de l'Etat Libanais (Lebanon)
99 IRR - Iraqi Republic Railways Establishment (Iraq)
?? NIR - Northern Ireland Railways (Northern Ireland)
?? BV - Banverket (Swedish Railway Authority)
?? SRO - Saudi Railways Organization (Saudi Arabia)