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2. SMARTY - Wikipedia

   en.wikipedia.org/wiki/SMARTY

   SIM card package from SMARTY. All plans are monthly, with no contract, and are paid in advance by credit card, debit card, or cash via PayPoint, rather than via the more prevalent direct debit method. The company states that no credit checks are made. [3] All plans (excluding data only plans) include unlimited UK calls and texts. In common with ...

3. SIM card - Wikipedia

   en.wikipedia.org/wiki/SIM_card

   A typical SIM card (mini-SIM with micro-SIM cutout) T-Mobile nano-SIM card with NFC capabilities in the SIM tray of an iPhone 6s cell phone A SIM (Subscriber Identity Module) card is an integrated circuit (IC) intended to securely store an international mobile subscriber identity (IMSI) number and its related key, which are used to identify and authenticate subscribers on mobile telephone ...

4. List of mobile virtual network operators in the United States ...

   en.wikipedia.org/wiki/List_of_mobile_virtual...

   Mobile virtual network operators (MVNOs) in the United States lease wireless telephone and data service from the four major cellular carriers in the country—AT&T Mobility, Boost Mobile, T-Mobile US, and Verizon—and offer various levels of free and/or paid talk, text and data services to their customers.

5. AT&T Mobility - Wikipedia

   en.wikipedia.org/wiki/AT&T_Mobility

   Cingular 3G UMTS SIM card. In California, Nevada, Northern New Jersey and New York City, Cingular and T-Mobile USA maintained and shared a GSM-1900 network prior to the acquisition of AT&T Wireless, through a joint venture known as GSM Facilities. The network sharing agreement allowed Cingular to offer local service in northern New Jersey and ...

6. Transatel - Wikipedia

   en.wikipedia.org/wiki/Transatel

   The brand exclusively offers mobile internet access and allows users to connect to 3G/4G networks in 130 destinations (to date) at local rates. [18] Unlike Transatel's previous offers, Transatel DataSIM was designed to be used throughout the world.

7. Comparison of mobile phone standards - Wikipedia

   en.wikipedia.org/wiki/Comparison_of_mobile_phone...

   3G: W-CDMA: UMTS (3GSM) Digital: 2001 Worldwide SIM card: None Smaller cells and lower indoors coverage on 2100 MHz; equivalent coverage indoors and superior range to GSM on 850/900 MHz. Very low density Soft Yes [3] 4G: OFDMA: LTE: Digital: 2009 Worldwide SIM card: None Smaller cells and lower coverage on the S band. Very low density Hard No ...