PrePaid GSM SIM cards
Also read the special article about PrePaid GSM cards. It also contains many links.
Addendums and corrections are VERY welcome.
List compiled by Osby Mikro
Europe
Countries
Operators
Name of the card
Int calls
Roaming
 
 
 
 
 
Switzerland
Swisscom
"Natel Easy"
yes
yes
Switzerland
diAX
"Pronto"
yes
no
Switzerland
Orange
"PrePay"
yes 
(yes) 
Germany
D1
"Xtra"
yes
yes
Germany
D2
"CallYa"
yes
yes
Germany
E-plus
"Free & Easy" 
yes
yes
Austria
Mobilkom
"B-free"
yes
yes
Austria
max.mobil.
"klax.max."
yes
(yes)
Austria
One
"Take One"
yes
(yes)
Austria
Telering
"Twist"
Italy
TIM
"TIM MENU"
yes
yes
Italy
Vodafone
"Ricaricabile" (3 types)
yes
yes
Italy
Vodafone
"Valore Ricaricabile"
yes
yes
Italy
Wind
"24 ore"
yes
yes
Italy
Wind
"Quando"
yes
yes
Belgium
Mobistar
"Tempo Classic"
yes
yes
Belgium
Mobistar
"Tempo Freetime"
yes
yes
Belgium
Proximus
"Pay&Go"
yes
yes
Belgium
Base
"PrePay"
yes
yes
Countries
Operators
Name of the cards
Int calls
Roaming
Luxembourg
P & T
"Tip Top"
yes
yes
Luxembourg
Tango
"Pronto"
yes
yes
France
Itineris
"Mobicarte"
yes
no
France
SFR
"Entrée Libre"
no
no
France
SFR
"Direct Live"
no
no
France
Bouygues
"Nomad"
yes
no
Spain
Movistar
"Activa" (diff types)
yes
yes
Spain
Vodafone
"formula" (diff types)
yes
yes
Spain
Amena
"Más" (diff types)
yes
yes
Sweden
Comviq
"Kontant"
yes
yes
Sweden
Optimal
"Tango"
yes
yes
Sweden
Vodafone
"PrePaid"
yes
yes
Sweden
TeliaSonera
"Refill"
yes
(yes)
Denmark
Telia DK
"Cash"
yes
no
Denmark
Sonofon
"Tale Tid"
yes
no
Denmark
TDC
"MobilTid"
yes
yes
Denmark
Orange
"Just Talk"
yes
yes
Countries
Operators
Name of the cards
Int calls
Roaming
Norway
Telenor Mobil
"RingKontant"
yes
(yes)
Norway
NetCom
"Kontant"
yes
(yes)
Finland
TeliaSonera
"Easy"
yes
no
Estonia
Tele2
"Smart"
yes
yes
Estonia
Tele2
"Ultra"
yes 
yes
Estonia
EMT
"Simpel"
yes
no
Latvia
Tele2
"Zelta Zivtina"
yes 
yes
Latvia
LMT
"OKarte"
yes
no
Latvia
Amigo
"Amigo"
yes
no
Lithuania
Bite
"Labas"
yes
no
Lithuania
Omnitel
"Extra"
yes
no
Lithuania
Tele2
"Pildyk"
yes
yes
Poland
Plus GSM
"SIMPLUS"
yes
yes
Poland
Era GSM
"Tak Tak"
yes
yes
Poland
Idea
"Pop"
yes
yes
Hungary
Pannon
"Praktikum"
yes
yes
Hungary
Westel
"Domino"
yes
yes
Hungary
Vodafone
"VitaMax"
yes
no
Czech rep
T-mobile
"Twist"
yes
yes
Czech rep
EuroTel
"Go"
yes
yes
Czech rep
Oskar
"OsKarta"
yes
yes
Slovak rep
Eurotel
"Easy"
yes
(yes)
Slovak rep
Orange
"Prima"
yes
(yes)
Countries
Operators
Name of the cards
Int calls
Roaming
UK
O2
"Easylife"
yes
yes
UK
Vodafone
"Pay as you Talk"
yes
yes
UK
T-mobile
"Up-2-You"
yes
no
UK
Virgin
" ? "
yes 
(yes) 
UK
Orange
"Just Talk"
yes
no
Ireland
Eircell
"Ready to Go 087"
yes
no
Ireland
ESAT
"Speakeasy"
?
?
Greece
Telestet
"B-free" (3 types)
yes
yes
Greece
Vodafone
"A la carte"
yes
(yes)
Greece
Vodafone
"CU"
yes
(yes)
Greece
CosmOTE
"Cosmocarta"
yes
(yes)
Netherlands
Vodafone
"Izi"
yes
yes
Netherlands
KPN
"Hi"
yes
yes
Netherlands
Telfort
"Pak&Bel"
yes
yes
Netherlands
BEN
"Ben Vrij"
yes
yes
Netherlands
DutchTone
"Allin"
yes
yes
Portugal
TMN
"Cartao Mimo"
yes
yes
Portugal
Telecel
"Vitamina"
yes
(yes)
Romania
Dialog
"Alo"
yes
no
Romania
Connex
"Connex Go"
yes
no
Romania
Connex "Kamerad"
yes
no
Romania Cosmorom
"Cosmo"
yes no
Slovenia
Mobitel
"Mobi"
yes
(yes)
Slovenia
Simobil
"Halo!"
yes
(yes)
Croatia
Cronet
"Simpa"
Croatia
VIPnet
"VIP.me"
yes
yes
Serbia
Mobtel
"Mobiklik"
yes
(yes)
Serbia
Telekom
"Telekom"
yes 
no 
Ukraine
?
"SIM-SIM"
?
?
Countries
Operators
Name of the cards
Int calls
Roaming
Other countries
Countries
Operators
Name of the cards
Int calls
Roaming
Australia
Telstra Mobile
"MobileNet ZIP"
yes
no
Australia
Vodafone
"Fast Fone"
yes
no
Australia
Optus
"Optus Express"
yes
no
New Zealand
Vodafone
"Prepay"
yes
yes
Turkey
Aria
"Bataria"
yes
?
Turkey
Telsim
"PratikHat"
yes
yes
Turkey
Turkcell
"Hazir Kart"
yes
no
Un Arab Emirates
Etisalat
"Speak Easy"
yes
no
Jordan
FastLink
"EZLink"
yes 
no 
Lebanon
Cellis
"Clic"
no
no
Lebanon
Libancell
"Premiere"
yes
no
Egypt
MobiNil
"Alo"
yes
no
Sudan
Mobitel
?
?
?
Bahrain
Batelco
"SIMSIM"
yes
no
Botswana
Mascom
Prepaid
?
?
Botswana
Vista
Prepaid
?
?
Zimbabwe
Econet Wireless
"Buddie"
yes
no
South Africa
Vodacom
"Vodago"
yes
no
South Africa
MTN
"Pay-As-You-Go"
yes
no
India, Bombay
Maxitouch
"Ace" (3 types)
yes
no
India, Bombay
BLP Mobile
"Instacard" (3 types)
yes
no
Malaysia
Digi
?
yes
no
Singapore
M1
"M Card"
yes
yes
Singapore
SingTel
hi!
?
?
Indonesia
Telkomsel
"SimPaTi"
yes
no
Indonesia
Satelindo
"Mentari"
yes
no
Indonesia
Excelcom
"ProXL"
yes
no
Philippines
Islacom
"IslaPrePaid"
no 
Philippines
Piltel
"Talk 'n text"
?
?
Hong Kong
Orange
?
?
?
Hong Kong
Peoples telecom
"Easy Talk"
?
?
Hong Kong
Peoples telecom
"mSpot"
?
?
Hong Kong
TCSL
?
yes
no
Guadelope
Ameris
?
?
?
Chile
Entel Telefonia
"Alo"
?
?
USA
DigiPH
"SmartPay"
no
no
USA
Powertel
"Prepaid"
no
no
USA
VoiceStream
"Easy Speak"
no 
Countries
Operators
Name of the cards
Int calls
Roaming