CDMA2000 (also known as C2K or IMT Multi‑Carrier (IMT‑MC)) is a family of 3G mobile technology standards for … See more

CDMA2000 1X (IS-2000), also known as 1x and 1xRTT, is the core CDMA2000 wireless air interface standard. The designation "1x", meaning 1 times radio transmission technology, indicates the same … See more

1X Advanced (Rev.E) is the evolution of CDMA2000 1X. It provides up to four times the capacity and 70% more coverage compared to 1X. See more

The CDMA Development Group states that, as of April 2014, there are 314 operators in 118 countries offering CDMA2000 1X and/or 1xEV-DO service. See more

CDMA2000 technology was developed by Qualcomm in the late 1990s as an enhancement to the CDMA standard.
The intended 4G successor to CDMA2000 was UMB (Ultra Mobile Broadband); however, i… See more

In 2007, Qualcomm provided a global patent license for CDMA2000 to the Chinese company Teleepoch. See more

• TIA TR-45 Engineering Committee for CDMA Standards
• 3GPP2 Archived January 23, 2004, at the Wayback Machine Standards and specifications
• CDMA2000 Overviews of the CDMA2000 standards - 1X to UMB… See more