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AT&T Prepaid (stylized AT&T PREPAID; formerly GoPhone) is a prepaid mobile phone service from AT&T Mobility. The GoPhone name and product were originally conceived and implemented by McCaw Cellular by its founder Craig McCaw and first used in commerce in 1987 by his company.
A typical SIM card (mini-SIM with micro-SIM cutout) A SIM card or SIM (Subscriber Identity Module) 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 devices (such as mobile phones and laptops).
Acquired by Verizon Wireless and AT&T Mobility. [39] AT&T Wireless Services: GSM: EDGE: 22: October 2004: Acquired by Cingular Wireless, which later rebranded to AT&T Mobility. [40] Big Sky Mobile: GSM: EDGE: Unknown: 2017: Sold spectrum licenses to AT&T and T-Mobile and exited the business. [41] Blaze Wireless: GSM, UMTS: EDGE, HSPA+, LTE ...
The AT&T Wireless version of the Motorola Razr V3xx Announced in July 2006, the V3xx was a 3G category 5/6 (3.6 Mbit/s) HSDPA and EDGE supported handset. It was extremely similar in appearance to the compact V3i design, but incorporated an improved feature set with a 1.3-megapixel camera, 50 MB of internal memory, support for microSD and ...
SIM Access Profile (SAP, SIM, rSAP) [ edit ] This profile allows devices such as car phones with built-in GSM transceivers to connect to a SIM card in a Bluetooth enabled phone, thus the car phone itself does not require a separate SIM card and the car external antenna can be used.
A nano sim used in mobile phones. One of the key features of GSM is the Subscriber Identity Module, commonly known as a SIM card. The SIM is a detachable smart card [2] containing a user's subscription information and phone book. This allows users to retain their information after switching handsets.