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What does this do?
Instead of paying for your messages, you can alter a number in your phone to send to a different centre. This cannot charge you, and consequently you have free SMS!
How does it work?
When you send a text message, it is first transmitted to your network's routing centre, called the Short Message Service Centre, or SMSC. This SMSC is generally a telephone number, normally a memorable one- i.e. Orange's is 0973 100973. Here, it is sent to the recipient's network's SMSC, where it is then forwarded to their phone. The whole process takes only seconds, but the vital part is when it reaches your SMSC, because then it is forwarded, and you are charged according to your tariff. If you, however, change your SMSC number to one below, the network who forward the message will not know who you are, and consequently cannot charge you. Clever huh?
Does it always work?
No! It can take hours to find a number that hasn't been blocked by your network- they usually carry out checks monthly and bar any numbers known to be forwarding SMS. Also, I understand that Orange and all networks in Denmark have barred all numbers aside from their own- so it won't work with Orange or Danish networks.
Andorra
+376-301004
Australia
One.Tel Australia +61 411 990 001
Vodafone Australia +61-415011501
Telstra Australia +61-418706700
Telstra Australia +61-418706800
Telstra Australia +61-418706900
Optus Australia +61-412025989
Optus Australia +61-411990000
Optus Australia +61-411990001
Optus Australia +61-411990003
Austria
A1 +43 664 0501
Connect ONE +43 699 0001999
max-mobil +43 676 021
tele.ring +43 650 09000000.
Azerbaijan
Azercell +994-50-910-3300
Bakcell +994557070707
Baharain
+973-9600179
Belgium
Mobistar Belgium +32-95955205
Proximus Belgium +32-75161616
Proximus Belgium +32-75161612
Orange Belgium +32-486000005
Bosnia and Herzegovina
PTT GSM BIH +387-90-225522
Botswana
Mascom Wireless +267-71010024
Bulgaria
MobilTel: +35988000301
Canada
Fido Canada +1-5149931123
Chile
Entel PCS +56-98890005
China
Telecom China +86-1390591500
Telecom China +86 13800100500
Croatia
Cronet +385-980501
VIPNET +385-910401
Cyprus
Cyprus +3579700000
Czech Republic
Eurotel Czech rep +420-602909909
Radiomobil Czech rep +420-603051
Denmark
Sonofon Denmark +45-40590000
TeleDanmark Denmark +45-40390999
Telia DK Denmark +45-28187000
Mobilix Denmark +45-26265151
Denmark
Free! +45 40590006
Egypt
Click GSM +20105996500
Mobinil +20122000020
Estonia
EMT Estonia +372-5099000
Ritabell Estonia +372-5509911
Radiolinja Estonia +372-568771010
Fiji
+679901400
Finland
Radiolinja Finland +358-508771010
Sonera Finland +358-405202000
France
SFR France +33-609001390
Bouygues France +33-660003000
Itineris France +33-689004000
Itineris France +33-689004431
Itineris France +33-68900458
Germany
D1 Germany +49-1710760000
D1 Germany +49-1715990000
D1 Talkline Germany +49-1710760900
D2 Germany +49-172227033
D2 Germany +49-1722270000 [to D2 only]
D2 Germany +49-1722270333
D2 Talkline Germany +49-1722270258
Debitel Germany +49-1722270222
IC3S Germany +49-1722270201
Dr Materna Germany +49-1722270111
E2 VIAG Germany +49-1760000443
E-Plus Germany +49-1770600000
E-Plus Germany +49-1770610000
E-Plus Germany +49-1770620000
Greece
Panafon Greece +30-94219000
Telestet Greece +30-93599000
Telestet Greece +30-93597000
Cosmote Greece +30-97100000
Holland
Libertel Netherlands +31-6540881000
PTT Netherlands +31-653131313
Telfort Netherlands +31-626000230
BEN Netherlands: +31-624000000
Dutchtone, Netherlands: +31628500561
Hong Kong
Hutchinson Hong Kong +852-94985795
HK Telecom Hong Kong +852-90288000
Smartone Hong Kong +852-90100000
Hungary
Pannon Hungary +36-209300099
Westel900 +36-30-9888-000
Vodafone +36709996500
Iceland
Landssimi Islands hf +354-8900100
Tal +354-6999099
Ireland
Eircell Ireland +35387699989
Esat Ireland +353-868002000
India [+91 - ]
BPL Mobile India +91-9821000005
MAXtouch India +91-9820005446
Essar Cellphone +91-9811009998
Tata +919848001104
Command +919830099990
AirTel Delhi +91-98100-51914
Skycell Cellular +919840011003
Spice Karnataka +919844198441
Indonesia
Satelindo Indonesia +62-81615
Telkomsel Indonesia is +62-81100000
Exelcomindo Indonesia +62-818445009
Isle of Man
Pronto GSM +447624499955
Israel
Orange Israel +972-54-120032
Italy
Omni Italy +39-3492000200
Omni Italy +39-3492000300
Omni Italy +39-3492000400
Omni Italy +39-3492000500
TIM Italy +39-3359609600
TIM Italy +39-3359608000
TIM Italy +39-338960960
TIM Italy +39-338980000
Wind Italy +39-3205858500
Kuwait
MTC +96596000303
Al-Wataniya +9656373717
Latvia
LMT Latvia +371-9202020
Baltcom GSM +371 9599994
Lebanon
FTML Cellis +61-3488888
Lesotho
Vodacom Lesotho [+266]
Lithuania
Bite GSM Lithuania +370-9950115
Omnitel Lithuania +370-9899992
Luxembourg
PTT Luxembourg +352-021100003
Tango Luxembourg +352-091000030
Macau
Macau CTM +85366
Macau CTM +85368
Macedonia
MobiMak [389 - 70]
+389 70 000501
Malaysia
ADAM Malaysia +60-173600010
Celcom Malaysia +60-193900000
Mutiara Malaysia +60-162999000
Maxis Malaysia +60-120000015
Mauritius
EMTEL +230 7290999
Mongolia
MobiCom +97699000030
Montenegro
Pro monte +38169200000
Monet +38167100100
Morocco
Maroc Telecom +2121000021, +2121000022
Meditel +2123992000
Namibia
MTC [+264 - 81]
New Zealand
Vodafone New Zealand +64-21600600
Norway
NetCom Norway +47-92001000
NetCom Norway +47-9208977
TeleNor Norway +47-90002100
TeleNor Norway +47-90007777
PAKISTAN
Mobilink +92300000042
Portugal
Telecel is +351-911616161
TMN Portugal +351-936210000
OPTIMUS +35193121314
Philippines
Globe Philippines +63-91702
Globe Philippines +63-91703
Globe Philippines +63-91704
Globe Philippines +63-91709
Islacom Philippines +63-9150200003
Smart Philippines +63-9180000101
Poland
Era GSM Poland +48-602951111
Era GSM Poland +48-602951112
Polkomtel Poland +48-601000310
Polkomtel Poland +48-601000311
IDEA Centertel Poland +48-501200777
Reunion
Reunion +33609001390
Romania
Connex Romania +40-92004000
Dialog Romania +40-94946000
Cosmorom (1800 MHz)
Russia
North West Russia +7-8129600096
MTS Russia +7-0957699100
BeeLine +7-90173100
Saudiarabia
SaudiTel +966-5-5842855
Serbia
MobTel Serbia +381-63100100
MobTel +38163100300
PTT Telekom Serbia +381-650000900
PTT Telekom Serbia +381-640000900
Seychelles
Airtel: +248700000
Singapore
Mobile One Singapore +65-96845999
Mobile One Singapore +65-96845997
SingTel Singapore +65-96400001
SingTel Singapore +65-96500001
SingTel Singapore +65-98189999
SingTel Singapore +65-96197777
Slovakia
Eurotel Slovakia +421-903333000
Globtel Slovakia +421-905303303
Slovenia
Mobitel Slovenia +386-41001333
Si.Mobil Slovenia +386-40441000
South Africa
MTN +27-831000002
MTN (Prepaid) +27-831000113
Vodacom South Africa +27-829119
Vodacom South Africa +27-829129
Spain
Telefonica Spain +34-609090909
Airtel Spain +34-607133000
Airtel Spain +34-607003110
Amena Spain +34-656000311
Sweden
Comviq Sweden +46-707990001
Comviq Sweden +46-707990002
Comviq Sweden +46-707990003
Comviq Sweden +46-707773078
Europolitan Sweden +46-708000708
Telia Sweden +46-705008999
Switzerland [+41-79]
Swisscom Switzerland +41-794999000
diAX Switzerland +41-765980000
Orange +41-787777070
Tanzania
Tritel +255812904000
Taiwan
Chung Wa Tele Taiwan +886-932400821
Thailand
AIS Thailand +66-18110888
WP1800 Thailand +66-16110400
Turkey
Turkcell Turkey +90-5329010000
Turkcell Turkey +90-5329020000
Turkcell Turkey +905329030000
Turkcell Turkey +90-5329040000
Telsim Turkey +90-5429800033
Ukraine
UMC +38050000501
Kyivstar +380-672020000
Golden Telecom +380444990000
Wellcome +38044 251 7777
United Arab Emirates
PTT UAE +97150 6014994
United Kingdom
Isle of Man Pronto GSM +447624499955
Vodafone UK +44-385016005
CellNet UK +44-802000332
Virgin Mobile UK +447958879890
Orange UK +44-973100973
Orange UK +44-973100974 internal
One2One UK +44-7958879879
Guernsey Telecoms [+44-4481/7781]
Jersey +44 7797704444
USA
Aerial Comms USA +1-8132630025
Aerial Comms USA +1-2812350025
Voicestream USA +1-2063130004
Pacific Bell USA +1-2099042010
Pacific Bell USA +1-2099042020
Powertel USA +1-3343338200
DigiPH PCS USA +1-3342090307
Omnipoint USA +1-9179070004
Sprint USA +1-7044100000
Washington PCS USA +1-410258953
Venezuela
Digitel +58-12-8000000
Yugoslavia
MobTel +381-63-100400
MobTel +381-63100300
MobTel +381-63100200
MobTel +381-63100100
MobTel +3816310030034
MobTel +3816310040034
PTT Telekom Serbia +381-650000900
Zimbabwe
Econet Wireless +263-91010030
