So, I was browsing through the internet to know if the iPhone 4 I brought is factory Unlocked or not and I thought to myself how many of you guys would be needing to know this.
The iPhone 4 is the hottest gadget to have. It’s also the most difficult to get. The unlocked model is also more expensive and has a higher resale value when it’s time to upgrade.
Jailbreaking and using an unauthorized unlock is available. But future availability of these unlocks are not guaranteed. You may end up with a carrier-locked model and be stuck without an unlock for a long time.
Before buying an iPhone 4 from unofficial sources such as eBay or classified ads sites, make sure that it is unlocked. Â So here is how you can figure out, Â if the phone is carrier locked, based on the part number written on the box OR Goto Settings > General > About > MODEL
Locked iPhone 4 country part numbers
Germany
MC603DN/A 16GB Black
MC605DN/A 32GB Black
Japan
MC603J/A 16GB Black
MC605J/A 32GB Black
Spain
MC603Y/A 16GB Black
MC605Y/A 32GB Black
USA
MC608LL/A 16GB Black
MC610LL/A 32GB Black
MC318LL/A 16GB Black
MC319LL/A 32GB Black
Unlocked iPhone 4 country part numbers
Australia
MC603X/A 16GB Black
MC605X/A 32GB Black
Canada
MC603C/A 16GB Black
MC605C/A 32GB Black
France
MC603FB/A 16GB Black
MC605FB/A 32GB Black
Hong Kong
MC605ZP/A 32GB Black
MC603ZP/A 16GB Black
Italy
MC603IP/A 16GB Black
MC605IP/A 32GB Black
New Zealand
MC603X/A 16GB Black
MC605X/A 32GB Black
Singapore
MC603ZA/A 16GB Black
MC605ZA/A 32GB Black
Sweden
MC603KS/A 16GB Black
MC605KS/A 32GB Black
United Kingdom
MC603B/A 16GB Black
MC605B/A 32GB Black
Additionally, you can dig into Apple’s Knowledge base if you have a Hell lot of time  here.
For iPhone 3G
| Country | Carrier | Carrier Support | Locked to carrier | Visual Voicemail | Standard Voicemail | iPhone 3G Part Numbers |
|
Argentina |
Claro | Claro Support2 | ?1 | ?3 | ? | MB489LE/A MB496LE/A MB500LE/A |
|
Argentina |
Movistar | Movistar Support2 | ?1 | ? | MB489LE/A MB496LE/A MB500LE/A |
|
|
Austria |
One | One Support | ?1 | ? | ? | MB489FD/A MB496FD/A MB500FD/A |
|
Austria |
T-Mobile | iPhone im T-Mobile Shop | ? | ? | ? | MB490DN/A MB497DN/A MB501DN/A |
|
Australia |
Optus | Optus Support | ?1 | ? | MB489X/A MB496X/A MB500X/A |
|
|
Australia |
Telstra | Telstra Support | ?1 | ? | MB489X/A MB496X/A MB500X/A |
|
|
Australia |
Vodafone | Vodafone Support | ?1 | ? | MB489X/A MB496X/A MB500X/A |
|
|
Belgium |
Mobistar | Mobistar Support | ? | ? | MB489NF/A MB496NF/A MB500NF/A |
|
|
Canada |
Rogers | Rogers Support | ? | ? | ? | MB629C/A MB630C/A MB631C/A MB632C/A MB633C/A MB634C/A MB635C/A MB636C/A |
|
Canada |
Fido | Fido Support | ? | ? | ? | MB629C/A MB630C/A MB631C/A MB632C/A MB633C/A MB634C/A MB635C/A MB636C/A |
|
Chile |
Claro | Claro Support2 | ?1 | ? | MB489LZ/A MB496LZ/A MB500LZ/A |
|
|
Chile |
TMC | TMC Support2 | ?1 | ? | MB489LZ/A MB496LZ/A MB500LZ/A |
|
|
Colombia |
Comcel | Comcel Support2 | ?1 | ?3 | ? | MB489LA/A MB496LA/A MB500LA/A |
|
Colombia |
Movistar | Movistar Support2 | ?1 | ? | MB489LA/A MB496LA/A MB500LA/A |
|
|
Czech Republic |
O2 | O2 Czech Republic Online Support Resources2 | ? | MB489CZ/A MB496CZ/A MB500CZ/A |
||
|
Czech Republic |
T-Mobile | T-Mobile Support2 | ? | MB490CZ/A MB497CZ/A MB501CZ/A |
||
|
Czech Republic |
Vodafone | Vodafone Czech Republic Support2 | ? | MB489CZ/A MB496CZ/A MB500CZ/A |
||
|
Denmark |
Telia | Telia Support2 | ? | ?3 | ? | MB489KN/A MB496KN/A MB500KN/A |
|
Ecuador |
Porta | Porta Support2 | ?1 | ? | MB489LA/A MB496LA/A MB500LA/A |
|
|
Ecuador |
Movistar | Movistar Support2 | ?1 | ? | MB489LA/A MB496LA/A MB500LA/A |
|
|
El Salvador |
Claro | Claro Support2 | ?1 | ? | MB489LA/A MB496LA/A MB500LA/A |
|
|
El Salvador |
Movistar | Movistar Support2 | ?1 | ? | MB489LA/A MB496LA/A MB500LA/A |
|
|
Estonia |
EMT | EMT Support2 | ?1 | ?3 | ? | MB489EE/A MB496EE/A MB500EE/A |
|
Finland |
Sonera | Sonera Support2 | ? | ?3 | ? | MB489KS/A MB496KS/A MB500KS/A |
|
France |
Orange | Orange Support | ?1 | ? | ? | MB489NF/A MB496NF/A MB500NF/A |
|
Germany |
T-Mobile | iPhone im T-Mobile Shop | ? | ? | ? | MB490DN/A MB497DN/A MB501DN/A |
|
Greece |
Vodafone | Vodafone Greece Support2 | ? | MB489GR/A MB496GR/A MB500GR/A |
||
|
Guatamela |
Claro | Claro Support2 | ?1 | ? | MB489LA/A MB496LA/A MB500LA/A |
|
|
Guatamela |
Movistar | Movistar Support2 | ?1 | ? | MB489LA/A MB496LA/A MB500LA/A |
|
|
Hungary |
T-Mobile | T-Mobile Support2 | ?1 | ? | ? | MB490MG/A MB497MG/A MB501MG/A |
|
Honduras |
Claro | Claro Support2 | ?1 | ? | MB489LA/A MB496LA/A MB500LA/A |
|
|
Hong Kong |
3 | 3 Support | ?3 | ? | MB489ZP/A MB496ZP/A MB500ZP/A |
|
|
India |
Airtel | Airtel Support2 | ?1 | ? | MB489HN/A MB496HN/A MB500HN/A |
|
|
India |
Vodafone | Vodafone Support2 | ? | ? | MB489HN/A MB496HN/A MB500HN/A |
|
|
Ireland |
O2 | iPhone O2 Online Support – Ireland | ? | ? | MB489B/A MB496B/A MB500B/A |
|
|
Italy |
TIM | TIM Support | ? | ? | MB489T/A MB496T/A MB500T/A |
|
|
Italy |
Vodafone | Vodafone Support | ? | MB489T/A MB496T/A MB500T/A |
||
|
Japan |
SoftBank | SoftBank Support | ? | ? | ? | MB489J/A MB496J/A MB500J/A |
|
Liechtenstein |
Orange | Orange Support | ?1 | ? | MB489FD/A MB496FD/A MB500FD/A |
|
|
Liechtenstein |
Swisscom | Swisscom Support | ?1 | ? | ? | MB489FD/A MB496FD/A MB500FD/A |
|
Macau |
3 | 3 Support2 | ?3 | ? | MB489ZP/A MB496ZP/A MB500ZP/A |
|
|
Mexico |
Telcel | Telcel Support2 | ? | ?3 | ? | MB489E/A MB496E/A MB500E/A |
|
Netherlands |
T-Mobile | Apple iPhone bij T-Mobile | ? | ? | MB490DN/A MB497DN/A MB501DN/A |
|
|
New Zealand |
Vodafone | Vodafone Support | ? | MB489X/A MB496X/A MB500X/A |
||
|
Norway |
NetcCom | NetCom Support2 | ?1 | ?3 | ? | MB489KN/A MB496KN/A MB500KN/A |
|
Paraguay |
CTI Movil | CTI Movil Support2 | ?1 | ? | MB489LZ/A MB496LZ/A MB500LZ/A |
|
|
Peru |
Claro | Claro Support2 | ?1 | ? | MB489LA/A MB496LA/A MB500LA/A |
|
|
Peru |
TM SAC | TM SAC Support2 | ?1 | ? | MB489LA/A MB496LA/A MB500LA/A |
|
|
Philippines |
Globe | Globe Support2 | ? | MB489PP/A MB496PP/A MB500PP/A |
||
|
Poland |
Orange | Orange Support  2 | ?1 | ? | MB489PL/A MB496PL/A MB500PL/A |
|
|
Poland |
Era | Era Support  2 | ?1 | ? | MB489PL/A MB496PL/A MB500PL/A |
|
|
Portgual |
Optimus | Optimus Support | ? | ? | MB489PO/A MB496PO/A MB500PO/A |
|
|
Portugal |
Vodafone | Vodafone Support | ?1 | ? | MB489PO/A MB496PO/A MB500PO/A |
|
|
Romania |
Orange | Orange Support2 | ?1 | ? | MB489RO/A MB496RO/A MB500RO/A |
|
|
Singapore |
SingTel | SingTel Support2 | ? | MB489ZA/A MB496ZA/A MB500ZA/A |
||
|
Slovakia |
Orange | Orange Support2 | ? | MB489SL/A MB496SL/A MB500SL/A |
||
|
Slovakia |
T-Mobile | T-Mobile Support2 | ? | ? | MB490SL/A MB497SL/A MB501SL/A |
|
|
Spain |
Movistar | Movistar Support | ?1 | ? | ? | MB757Y/A MB759Y/A MB760Y/A |
|
Sweden |
Telia | Telia Support2 | ? | ?3 | ? | MB489KS/A MB496KS/A MB500KS/A |
|
Switzerland |
Orange | Orange Support | ?1 | ? | MB489FD/A MB496FD/A MB500FD/A |
|
|
Switzerland |
Swisscom | Swisscom Support | ?1 | ? | ? | MB489FD/A MB496FD/A MB500FD/A |
|
UK |
O2 | O2 Online Support | ? | ? | ? | MB489B/A MB496B/A MB500B/A |
|
USA |
AT&T | AT&T Online Support | ? | ? | ? | MB046LL/A MB048LL/A MB499LL/A MB702LL/A MB704LL/A MB705LL/A |
|
Uruguay |
CTI Movil | CTI Movil Support2 | ?1 | ? | MB489LZ/A MB496LZ/A MB500LZ/A |
|
|
Uruguay |
Movistar | Movistar Support2 | ?1 | ? | MB489LZ/A MB496LZ/A MB500LZ/A |
Via: http://www.iphone-spare-parts.com/
If you still have queries you can email me with the Subject same as the Post Title
Cheers
Â
The DNetWorks Team