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Roaming Zone
Home Network Codes System ID Global Roaming Prepaid Roaming Travel Phones
Codes & Tools for Using Wireless Away from Home & Out of the Country

Mobile Network Codes (MNC)
International Roaming Prepaids That Roam
Mexico Roaming Foreign Travel Phones

Roaming Code Key Roaming Codes:
The Mobile Network Code (MNC) is a 6-digit number used by wireless networks to determine on which network your wireless device should be operating.  The MNC is transmitted by the cell site and a list of codes is saved in the wireless handset.

The System IDentification Number (SID) is a numeric identifier used by cellular systems to identify the home system of a wireless carrier and by the cellular telephone to determine its roaming status.  The SID is transmitted by the cell site.

Roaming Tools Global Roaming Tools:
Roaming Zone Resources: