Celcom
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 Celcom facts

• Celcom is a member of the Axiata group of companies
• Being one of the very few companies in Malaysia to originally obtain a cellular phone license, it successfully introduced mobile telephony in Malaysia through its ART-900 (Automatic Radio Telephone) service, using first generation (analogue) ETACS (Extended Total Access Communication System) specifications of the United Kingdom, a derivative of the US-AMPS (Advanced Mobile Phone System) technology
• The ETACS ART-900 was started using the prefix "010"
• Celcom now uses the dialling prefix identifier of "013" and "019" and offer digital GSM (Groupe Speciale Mobile), an originally European standard, now largely a world standard for mobile communications
• The original frequency band for GSM is 900 MHz, and was soon extended to 1800 MHz to cater for a much wider bandwidth requirements
• The 2100 MHz band is used for their dual-channel HSPA+ network
• Celcom is also licensed and has been operating FDD-LTE on 1800 MHz and 2600 MHz
• Through the Mobile Numbering Portability by the Malaysian Communications and Multimedia Commission, CELCOM also provides Virtual Mobile Operator services
• Celcom also provides rural communications services using CDMA Technology and Satellite Phone