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The AT&T Carrier From Mexico is denoted by codes: 334 010, 334 050, 334 090. The followings IDs are called HNI (Home network identity). This code is created by the combination of two other Mobile Country Code (MCC) and Mobile Network Code (MNC). The first three numbers stand for the MCC and they are used in order to identify the region which the carried comes from (in the following example it’s Mexico). The last numbers of the HNI code are equal with the MNC and this ID is given for the specific mobile network operator.

Besides AT&T Mexico has assigned country code + 52. This number + 52 is equal with international calling code and it’s simply the telephone dialing prefixes used for calling AT&T numbers.
AT&T uses 2 GSM bands, 3 UMTS bands, 2 and 0 CDMA bands.. You can read the specific frequency bands in the table below. All bands of the AT&T are display in MHz units.
Another important information in AT&T Mexico architectures is the standard of used protocols. It also uses 5 protocols such as GSM, UMTS, LTE, CDMA. The ISO standard code of AT&T is MX. You can see more info about this mobile network operator at https://www.att.com.mx/. How to check AT&T coverage? How to check if your phone will work in Mexico?

FloppySend About
Name AT&T
Company AT&T Mexico
Country Mexico flag Mexico
Country ISO MX
Country code + 52
Carrier website https://www.att.com.mx/
Carrier codes
  • 334 010
  • 334 050
  • 334 090
Mobile prefix 1
Size of NSN 10
Number format

+52 1xx xxx xxxx

Coverage map Check AT&T Coverage
Comment Former Nextel, Iusacell. Using also iDEN 800.
Subscribers 12 500 000 (March 2017)
GSM bands
  • 850
  • 1900 (PCS)
GSM protocols
  • EDGE
  • GPRS
UMTS bands
  • B2 (1900 PCS)
  • B4 (1700/2100 AWS 1)
  • B5 (850)
UMTS protocols
  • HSPA+
  • UTMS
LTE bands
  • B4 (1700/2100 AWS 1)
  • B5 (850)
LTE protocols
  • LTE
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