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WTI Cellular Carrier Options WTI supports AT&T, Verizon & T-Mobile for North America and various international carriers throughout the world in two embedded cellular options. These two embedded cellular connectivity options are available with many of WTI's Out-of-Band Console Management, Power Management, Branch Office and Failover to Cellular products.    North America Bands/Frequencies(MHz): B2(1900), B4(AWS1700), B5(850), B12(700a), B13(700c), B14 (700 FirstNet), B66(AWS-3 1700), B71(600) AT&T: B2, B4, B5, B12, B66, B14 Verizon: B2, B4, B5, B13, B66 T-Mobile: B2, B4, B5, B12, B66, B71   Worldwide Bands/Frequencies(MHz): B1(2100), B3(1800), B7(2600), B8(900), B20(800), B28A(700)   4G: Map of the B7-2600 Frequency 4G: Map of the B3-1800 Frequency 4G: Map of the B20-800 Frequency 3G: Map of the B1-2100 Frequency 3G: Map of the B8-900 Frequency 3G: Map of the B5-850 Frequency 2G: Map of the 850 Frequency 2G: Map of the 1800 Frequency Map of worldwide frequency by countries   If you are unsure which cellular modem you have with your current WTI device please refer to our WTI Knowledgebase article below:   Identifying WTI Embedded Cellular Modem