AT&T - Puerto Rico

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AT&T
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Puerto Rico Flag of Puerto Rico View country details


AT&T (Puerto Rico) uses 2 GSM bands, 2 UMTS bands, and 2 LTE bands. Find out if your unlocked phone or mobile device will work with AT&T (Puerto Rico). See the tables below for details.

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Carrier website: http://www.wireless.att.com/

AT&T's mobile network in Puerto Rico has undergone significant changes. Here are the key points:

  1. Sale to Liberty Latin America:

    • AT&T sold its wireless and wireline operations in Puerto Rico and the U.S. Virgin Islands to Liberty Latin America in October 2019. The sale was completed on October 31, 2020.

  2. Transition to Liberty Mobile:

    • As a result of the sale, AT&T's wireless service in Puerto Rico and the U.S. Virgin Islands is now provided by Liberty Mobile. This transition includes changes to service plans, terms, and policies.

  3. Impact on Customers:

    • Customers in Puerto Rico and the U.S. Virgin Islands who were previously on AT&T's network are now on Liberty Mobile's network. This change includes the discontinuation of certain services like AT&T THANKS and the HBO Max app becoming Max.

  4. Porting Numbers to T-Mobile:

    • Due to the sale, AT&T has discontinued support for the 787 area code in Puerto Rico. Customers with this area code are advised to port their numbers to T-Mobile, which is the only major provider still operating in Puerto Rico and the U.S. Virgin Islands.

  5. Coverage and Signal Quality:

    • The coverage and signal quality of AT&T's network in Puerto Rico can be viewed on maps that show 2G, 3G, 4G, and 5G coverage areas.

In summary, AT&T's mobile network in Puerto Rico is no longer managed by AT&T but by Liberty Mobile, and customers are advised to switch to T-Mobile for continued service.

Frequency Bands

GSM

Name Interface Description
850 MHz GSM

AT&T Puerto Rico uses the GSM 850 MHz frequency band.
1900 MHz (PCS) GSM

AT&T Puerto Rico uses the GSM 1900 MHz (PCS) band. This band was deployed in 1998 by Entel PCS in Chile, marking the first GSM launch using the 1900 MHz band in Latin America.

UMTS

Name Interface Description
B2 (1900 MHz PCS) UMTS

AT&T Puerto Rico uses UMTS band B2 (1900 MHz PCS) for its network. This band is primarily used for UMTS services and offers coverage in the 1900 MHz frequency range. The deployment details of this band are not specified.
B5 (850 MHz) UMTS

AT&T Puerto Rico uses UMTS B5 (850 MHz) for its network. This frequency band provides additional coverage and complements other bands, particularly in densely populated areas.

LTE

Name Interface Description
B4 (1700/2100 MHz AWS 1) LTE

AT&T Puerto Rico uses LTE Band 4 (1700/2100 MHz AWS 1) for its mobile network. This band is used to provide a good balance between coverage and capacity, offering faster speeds than other bands while still reaching a wide area. It is primarily deployed in densely populated areas and urban centers to support increased data demands and offload traffic.
B17 (700 MHz bc) LTE

AT&T Puerto Rico uses LTE Band 17 (700 MHz bc) for its mobile broadband services. This band operates between 704-716 MHz for the uplink and 734-746 MHz for the downlink, with a duplex spacing of 30 MHz. It is known for its excellent propagation characteristics, allowing signals to penetrate buildings and cover larger geographic areas with less infrastructure. The band is utilized in carrier aggregation configurations with other bands, such as B2, B4, and B5, to enhance network performance and capacity.

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