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20 Aug. 2014

Are phone numbers stored on sim card,search this number,mobile phone directory usa,look up phone service provider - Within Minutes

A SIM card contains a processor and operating system with between 16 and 256 KB of persistent, electronically erasable, programmable read-only memory (EEPROM). As can be seen in the above figure, dedicated files are subordinate directories under the MF, their contents and functions being defined by the GSM11.11 standards. Card holder verification 1 (CHV1)—This condition allows access to files after successful verification of the user’s PIN or if PIN verification is disabled.
Card holder verification 2 (CHV2)—This condition allows access to files after successful verification of the user’s PIN2 or if the PIN2 verification is disabled. Administrative (ADM)—The card issuer who provides SIM to the subscriber can access only after prescribed requirements for administrative access are fulfilled. The SIM operating system controls access to an element of the file system based on its access condition and the type of action being attempted. ICCID: The integrated circuit card identification is a unique numeric identifier for the SIM that can be up to 20 digits long. MSISDN—The Mobile Station International Subscriber Directory Number is intended to convey the telephone number assigned to the subscriber for receiving calls on the phone. To perform forensic investigation on a SIM card ,it has to be removed from the cell phone and connect to a SIM card reader. AccessData Mobile Phone Examiner (MPE) Plus: This tool supports for than 7000 phones including iOS , Android , Blackberry, Windows Mobile, and Chinese devices and can be purchased as hardware with a SIM card reader and data cables.
SIMpull: SIMpull is a powerful tool, a SIM card acquisition application that allows you to acquire the entire contents of a SIM card.
As can be seen in above figure, by using the SIMpull application we can see the information of SMS such as a SMS text and its length, the SMS sender’s number information, service center information, etc.
It also known as an integrated circuit card (ICC), which is a microcontroller-based access module. The operating system allows only limited number of attempts, usually three, to enter the correct CHV before further attempts are blocked.

It consists of an industry identifier prefix (89 for telecommunications), followed by a country code, an issuer identifier number, and an individual account identification number. Abbreviated dialing numbers (ADN)—Any number and name dialed by the subscriber is saved by the ADN EF. Fixed dialing numbers (FDN)—The FDN EF works similar to the ADN because it involves contact numbers and names. Last number dialed (LND)—The LND EF contains the number most recently dialed by the subscriber .
Messaging Information—Messaging is a communication medium by which text is entered on one cell phone and delivered via the mobile phone network. The original data of SIM card is preserved by the elimination of write requests to the SIM during its analysis.
File systems are immediately viewable and can be parsed in MPE+ to locate lock code, EXIF, and any data contained in the mobile phone’s file system. This capability includes the retrieval of deleted SMS messages, a feature not available on many other commercial SIM card acquisition programs. It is a physical entity and can be either a subscriber identity module (SIM) or a universal integrated circuit card (UICC).
It can acquire data from Blackberry and iTunes backup files as well as a multitude of SD cards. A SIM can be removed from a cellular handset and inserted into another; it allows users to port identity, personal information, and service between devices.
The hierarchically organized file system of a SIM resides in persistent memory and stores data as names and phone number entries, text messages, and network service settings.
Files can be either administrative- or application-specific and access to stored data is controlled by the operating system. Depending upon the phone, it is also conceivable that the information may be stored in the handset and not on the SIM.

SMS entries contain other information besides the text itself, such as the time an incoming message was sent, as recorded by the mobile phone network, the sender’s phone number, the SMS center address, and the status of the entry. There are lots of forensic tools are available but all tools are not able to extract data from every type of cell phone and SIM card. All cell phones are expected to incorporate some type of identity module eventually, in part because of this useful property. These SIM cards vary in size but all have the functionality for both the identification and authentication of the subscriber’s phone to its network and all contain storage for phone numbers, SMS, and other information, and allow for the creation of applications on the card itself. Depending on the phone used, some information on the SIM may coexist in the memory of the phone. The ADN cannot be changed by the service provider and they can be attributed to the user of the phone. Basically, the ICC deployed for 2G networks was called a SIM and the UICC smart card running the universal subscriber identity module(USIM) application.
Alternatively, information may reside entirely in the memory of the phone instead of available memory on the SIM. Longer messages are broken down by the sending phone and reassembled by the receiving phone. USIMs are enhanced versions of present-day SIMs, containing backward-compatible information. If the SIM and USIM application are running on the same UICC, then they cannot be working simultaneously.

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