Call Piedras Negras, Mexico

To call Piedras Negras:

Dial: 52 X

If you are behind a switchboard, you may have to type first « 0 », « 9 » or another number to reach an external line. It may be the case if you are in a business office.

Number	Explanation
52	International dialing code used to dial to Mexico
X	Replace X with the local number you want to reach

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